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电源管理器件 - - 降压转换器

Buck Synchronous Integrated-switch Regulators（39）
Buck Non-Synch. Integrated-switch Regulators（80）
Buck Synchronous Switching Controllers（30）
Buck Non-Synch. Switching Controllers（10）
Switched Capacitor Regulators（6）
Buck Non-Synch. Integrated-switch Regulators（80）
Base Part Number 数据手册DataSheet下载 Output Current Input Min Voltage Input Max Voltage Output Min Output Max Frequency Min Frequency Max Efficiency (peak) On/Off Pin Error Flag SoftStart Sync Pin Inverting Flyback RegType Temperature Min Temperature Max Adjustable Output Adj Switch Frequency PWM Mode Topology Special Features Step-Down Multiple Output Capability Output Power Output Voltage Output Range Switching Frequency Feedback Voltage Regulator Family AEC Q-100 Automotive Grade Automotive Selection Guide PowerWise Synchronous Rectification Quiescent Current 数据手册DataSheet下载
LM22677 LM22677 5000 4.5 42 1.285 Undefined 200 1000 92 Yes No No Yes Yes No Switching Regulator -40 125 Yes Yes Voltage Mode Control Buck 500 kHz Default Switching Frequency Yes No Undefined   Undefined 500 1.285 SIMPLE SWITCHER Undefined No No No   LM22677
LM22678 LM22678 5000 4.5 42 1.285 Undefined Undefined Undefined 92 Yes No No No Yes No Switching Regulator -40 125 Yes No Voltage Mode Control Buck 500 kHz Switching Frequency Yes No Undefined   Undefined 500 1.285 SIMPLE SWITCHER Undefined No No No   LM22678
LM22679 LM22679 5000 4.5 42 1.285 Undefined Undefined Undefined 92 No No Yes No Yes No Switching Regulator -40 125 Yes No Voltage Mode Control Buck Adjustable Current Limit Yes No Undefined   Undefined 500 1.285 SIMPLE SWITCHER Undefined No No No   LM22679
LM2677 LM2677 5000 15| 8 40 1.23| 5| 12| 3.3 5| 37| 12| 3.3 260 260 92| 84| 82 Yes No No Yes - No Switching Regulator -40 125 Yes| No No Voltage with Vin Feedforward Buck Internal Type 3 compensation, 2% output voltage accuracy, SIMPLE SWITCHER regulator Yes No Undefined 5| Undefined| 12| 3.3 1.23V to 37V| 3.3V| 5V| 12V 260   SIMPLE SWITCHER Undefined     No   LM2677
LM2678 LM2678 5000 15| 8 40 1.23| 5| 12| 3.3 5| 37| 12| 3.3 260 260 92| 84| 82 Yes No No No - No Switching Regulator -40 125 Yes| No No Voltage with Vin Feedforward Buck Internal Type 3 compensation, 2% output voltage accuracy, SIMPLE SWITCHER regulator Yes No Undefined 5| Undefined| 12| 3.3 1.23V to 37V| 3.3V| 5V| 12V 260   SIMPLE SWITCHER Undefined     No   LM2678
LM2679 LM2679 5000 15| 8 40 1.23| 5| 12| 3.3 5| 37| 12| 3.3 260 260 92| 84| 82 No No Yes No - No Switching Regulator -40 125 Yes| No No Voltage with Vin Feedforward Buck Programmable current limit, 2% output voltage accuracy, SIMPLE SWITCHER regulator Yes No Undefined 5| Undefined| 12| 3.3 1.23V to 37V| 3.3V| 5V| 12V 260   SIMPLE SWITCHER Undefined     No   LM2679
LM22670 LM22670 3000 4.5 42 1.285 Undefined 200 1000 92 Yes No No Yes Yes No Switching Regulator -40 125 Yes Yes Voltage Mode Control Buck 500 kHz Default Switching Frequency Yes No Undefined   Undefined 500 1.285 SIMPLE SWITCHER Undefined No No No   LM22670
LM22673 LM22673 3000 4.5 42 1.285 Undefined Undefined Undefined 92 No No Yes No Yes No Switching Regulator -40 125 Yes No Voltage Mode Control Buck Adjustable Current Limit Yes No Undefined   Undefined 500 1.285 SIMPLE SWITCHER Undefined No No No   LM22673
LM22676 LM22676 3000 4.5 42 1.285 Undefined Undefined Undefined 92 Yes No No No Yes No Switching Regulator -40 125 Yes No Voltage Mode Control Buck 500 kHz Switching Frequency Yes No Undefined   Undefined 500 1.285 SIMPLE SWITCHER Undefined No No No   LM22676
LM25576 LM25576 3000 6 42 1.23 40 50 1000 88 Yes No Yes Yes Yes No Switching Regulator -40 125 Yes Yes Current Buck 1.5% feedback voltage accuracy, emulated current mode Yes No Undefined Undefined 1.23V to 37V 1000   SIMPLE SWITCHER Undefined Yes Yes No   LM25576
LM2576 LM2576 3000 4 40 1.23| 5| 12| 3.3 5| 37| 12| 3.3 52 52 75| 88| 77 Yes No No No Yes No Switching Regulator -40 125 Yes| No No Voltage Buck SIMPLE SWITCHER regulator Yes No Undefined 5| Undefined| 12| 3.3 1.23V to 65V| 3.3V| 12V| 5V 52   SIMPLE SWITCHER Undefined     No   LM2576
LM2576HV LM2576HV 3000 4 60 1.23| 5| 12| 3.3 57| 5| 12| 3.3 52 52 75| 88| 77 Yes No No No Yes No Switching Regulator -40 125 Yes| No No Voltage Buck SIMPLE SWITCHER regulator Yes No Undefined 5| Undefined| 12| 3.3 1.23V to 57V| 3.3V| 12V| 5V 52   SIMPLE SWITCHER Undefined     No   LM2576HV
LM2596 LM2596 3000 7| 4.75| 4.5| 15 40 1.23| 5| 12| 3.3 5| 37| 12| 3.3 150 150 -| 90| 73| 80 Yes No No No Yes No Switching Regulator -| -40 -| 125 Yes| No No Voltage Buck SIMPLE SWITCHER regulator Yes No Undefined 5| Undefined| 12| 3.3 1.23V to 37V| 3.3V| 5V| 12V 150   SIMPLE SWITCHER Undefined     No   LM2596
LM2599 LM2599 3000 7| 4.75| 4.5| 15 40 1.23| 5| 12| 3.3 5| 37| 12| 3.3 150 150 -| 90 Yes Yes Yes No Yes No Switching Regulator -40 125 Yes| No No Voltage Buck SIMPLE SWITCHER regulator, error output delay Yes No Undefined 5| Undefined| 12| 3.3 1.23V to 37V| 3.3V| 5V| 12V 150   SIMPLE SWITCHER Undefined     No   LM2599
LM26003 LM26003 3000 3 38 1.25 35 150 500 92 Yes Yes Yes Yes No No Switching Regulator -40 125 Yes Yes Current Buck High efficiency sleep mode, 1.5% output voltage accuracy, Quiescent current 50uA Yes No Undefined Undefined 1.25V to 35V Undefined 1.2 Undefined Undefined Yes   No   LM26003
LM2670 LM2670 3000 8 40 12 12 260 260 94 Yes No No Yes - No Switching Regulator -40 125 No No Voltage with Vin Feedforward Buck Internal Type 3 compensation, 2% output voltage accuracy, SIMPLE SWITCHER regulator Yes No Undefined 12 12V 260   SIMPLE SWITCHER Undefined     No   LM2670
LM2673 LM2673 3000 15| 8 40 1.23| 5| 12| 3.3 5| 37| 12| 3.3 260 260 94| 86| 88 No No Yes No - No Switching Regulator -40 125 Yes| No No Voltage with Vin Feedforward Buck Programmable current limit, 2% output voltage accuracy, SIMPLE SWITCHER regulator Yes No Undefined 5| Undefined| 12| 3.3 1.23V to 37V| 3.3V| 5V| 12V 260   SIMPLE SWITCHER Undefined     No   LM2673
LM2676 LM2676 3000 15| 8 40 1.23| 5| 12| 3.3 5| 37| 12| 3.3 260 260 94| 86| 88 Yes No No No - No Switching Regulator -40 125 Yes| No No Voltage with Vin Feedforward Buck Internal Type 3 compensation, 2% output voltage accuracy, SIMPLE SWITCHER regulator Yes No Undefined 5| Undefined| 12| 3.3 1.23V to 37V| 3.3V| 5V| 12V 260   SIMPLE SWITCHER Undefined     No   LM2676
LM2696 LM2696 3000 4.5 24 1.29 20 100 500 90 Yes Yes Yes No Yes No Switching Regulator -40 125 Yes Yes Constant on-time Buck No compensation required, ultra-fast transient response, thermal shutdown Yes No Undefined Undefined 1.29V to 20V 500   Undefined Undefined     No   LM2696
LM5576 LM5576 3000 6 75 1.23 70 50 500 88 Yes No Yes Yes Yes No Switching Regulator -40 125 Yes Yes Current Buck 1.5% feedback voltage accuracy, emulated current mode Yes No Undefined Undefined 1.23V to 70V 500   SIMPLE SWITCHER Undefined Yes Yes No   LM5576
LM25005 LM25005 2500 7 42 1.23 37 50 500 94 Yes No Yes Yes Yes No Switching Regulator -40 125 Yes Yes Current Buck, Inverting 1.5% feedback voltage accuracy, emulated current mode Yes No Undefined Undefined 1.23V to 37V 500 1.225 Undefined Undefined Yes   No   LM25005
LM5005 LM5005 2500 7 75 1.23 70 50 500 94 Yes No Yes Yes Yes No Switching Regulator -40 125 Yes Yes Current Buck 1.5% feedback voltage accuracy, emulated current mode Yes No   Undefined 1.23V to 70V 500 Undefined Undefined Undefined Yes   No   LM5005
LM22680 LM22680 2000 4.5 42 1.285 Undefined 200 1000 89 Yes No Yes Yes Undefined No Switching Regulator -40 125 Yes Yes Voltage Mode Control Buck Undefined Yes No Undefined Undefined Undefined 500 1.285 SIMPLE SWITCHER 0 Undefined No No 3.4 LM22680
LM2592HV LM2592HV 2000 4.5 60 1.23| 5| 3.3 57| 5| 3.3 150 150 76| 81| 75 Yes No No No No No Switching Regulator -40 125 Yes| No No Voltage Buck SIMPLE SWITCHER regulator Yes No Undefined 5| Undefined| 3.3 1.23V to 57V| 3.3V| 5V 150   SIMPLE SWITCHER Undefined     No   LM2592HV
LM2593HV LM2593HV 2000 4.5 60 5 5 150 150 81 Yes Yes Yes No Yes No Switching Regulator -40 125 Yes No Voltage Buck SIMPLE SWITCHER regulator, error output delay Yes No Undefined 5 5V 150   SIMPLE SWITCHER Undefined     No   LM2593HV
LM2832 LM2832 2000 3 5.5 0.6 4.5 1600| 550| 300 1600| 550| 3000 93 Yes No Yes No No No Switching Regulator -40 125 Yes No Current Buck Internal compensation Yes No Undefined Undefined 0.6V to 4.5V 1600| 550| 3000 Undefined Undefined Undefined Yes   No   LM2832
LM1572 LM1572 1500 8.5 16 5| 3.3 5| 3.3 300 300 Undefined Yes No Yes No No No Switching Regulator -40 85 No No Current Buck 2% output voltage accuracy Yes No Undefined 5| 3.3 2.4V to 5.0V 500 Undefined Undefined Undefined     No   LM1572
LM25575 LM25575 1500 6 42 1.23 40 50 1000 88 Yes No Yes Yes Yes No Switching Regulator -40 125 Yes Yes Current Buck 1.5% feedback voltage accuracy, emulated current mode Yes No Undefined Undefined 1.23V to 37V 1000   SIMPLE SWITCHER Undefined Yes Yes No   LM25575
LM26001 LM26001 1500 3 38 1.25 35 150 500 93 Yes Yes Yes Yes No No Switching Regulator -40 125 Yes Yes Current Buck High efficiency sleep mode, 1.5% output voltage accuracy, Quiescent current 40uA Yes No Undefined Undefined 1.25V to 35V Undefined 1.23 Undefined Undefined Yes Yes No   LM26001
LM26001B LM26001B 1500 3 18 1.25 16 150 500 93 Yes Yes Yes Yes No No Switching Regulator -40 125 Yes Yes Current Buck Sleep Mode Yes No Undefined Undefined 1.25V to 16V Undefined 1.23 Undefined Undefined Yes Yes No   LM26001B
LM2738 LM2738 1500 3 20 0.8 18 364| 1280 1920| 676 94.5| 92 Yes No Yes No No No Switching Regulator -40 125 Yes No Current Buck   Yes No       1600| 550 0.8 SIMPLE SWITCHER Undefined     No   LM2738
LM2831 LM2831 1500 3 5.5 0.6 4.5 1600| 550| 3000 1600| 550| 3000 93 Yes No Yes No No No Switching Regulator -40 125 Yes No Current Buck Internal compensation Yes No Undefined Undefined 0.6V to 4.5V 1600| 550| 3000 Undefined Undefined Undefined Yes   No   LM2831
LM5575 LM5575 1500 6 75 1.23 70 50 500 87 Yes No Yes Yes Yes No Switching Regulator -40 125 Yes Yes Current Buck 1.5% feedback voltage accuracy, emulated current mode Yes No Undefined Undefined 1.23V to 70V 500   SIMPLE SWITCHER Undefined Yes Yes No   LM5575
LM78S40 LM78S40 1500 2.5 40 1.245 Undefined 0.1 100 - No No No No Yes Yes Switching Regulator -55 125 Yes Yes Voltage Buck, Boost, Flyback, Inverting Integrated 1.5A diode, uncommitted op amp Yes Yes -| Undefined -| Undefined 1.245V min 100 1.245 Undefined Undefined | null | null No   LM78S40
LM2695 LM2695 1250 8 30 2.5 24 50 800 96 Yes No No No Yes No Switching Regulator -40 125 Yes Yes Constant on-time Buck No compensation required, ultra-fast transient response Yes No Undefined Undefined 2.5V to 24V 1000   Undefined Undefined     No   LM2695
LM34910 LM34910 1250 8 36 2.5 33 Undefined 1000 92 Yes No Yes No Yes No Switching Regulator -40 125 Yes Yes Constant on-time Buck No compensation required; ultra-fast transient response Yes No Undefined Undefined 2.5V to 33V 1000 Undefined Undefined Undefined     No   LM34910
LM34910C LM34910C 1250 8 50 2.5 45 Undefined 1000 92 Yes No Yes No Yes No Switching Regulator -40 125 Yes Yes Constant on-time Buck No compensation req'rd; ultra fast transient response Yes No Undefined Undefined 2.5V to 45V 1000 Undefined Undefined Undefined Yes   No   LM34910C
LM34914 LM34914 1250 8 40 2.5 37 Undefined 1300 94.5 Yes No Yes No Yes No Switching Regulator -40 125 Yes Yes Constant on-time Buck No compensation required; ultra-fast transient response Yes No Undefined Undefined 2.5V to 37V 1300 Undefined Undefined Undefined Yes   No   LM34914
LM34917A LM34917A 1250 8 33 2.5 30 Undefined 2000 92 Yes No Yes No No No Switching Regulator -40 125 Yes Yes Constant on-time Buck Intellegent Current Limit, No Loop Compensation Required Yes No Undefined Undefined Undefined Undefined Undefined Undefined Undefined No Yes No   LM34917A
LM1575 LM1575 1000 4 40 1.23| 5| 15| 12 5| 37| 15| 12 52 52 88 Yes No No No Yes -| Undefined Switching Regulator -55 150 No No Voltage Buck SIMPLE SWITCHER regulator Yes No -| Undefined -| 5| Undefined| 15| 12 15V| 1.23V to 37V| 12V| 5V 52   SIMPLE SWITCHER Undefined         LM1575
LM22672 LM22672 1000 4.5 42 1.285 Undefined 200 1000 92 Yes No Yes Yes Yes No Switching Regulator -40 125 Yes Yes Voltage Mode Control Buck 500 kHz Default Switching Frequency Yes No Undefined   Undefined 500 1.285 SIMPLE SWITCHER Undefined No No No   LM22672
LM22675 LM22675 1000 4.5 42 1.285 Undefined Undefined Undefined 92 Yes No No No Yes No Switching Regulator -40 125 Yes No Voltage Mode Control Buck 500 kHz Switching Frequency Yes No Undefined   Undefined 500 1.285 SIMPLE SWITCHER Undefined No No No   LM22675
LM25010 LM25010 1000 6 42 2.5 37 50 1000 95 Yes No Yes No Yes No Switching Regulator -40 125 Yes Yes Constant on-time Buck Ultra-fast transient response Yes No Undefined Undefined 2.5V to 37V 1000 Undefined Undefined Undefined Yes   No   LM25010
LM2575 LM2575 1000 4 40 1.23| 5| 15| 12| 3.3 5| 37| 15| 12| 3.3 52 52 75| 88| 77 Yes No No No Yes No Switching Regulator -40 125 Yes| No No Voltage Buck SIMPLE SWITCHER regulator Yes No Undefined 5| Undefined| 15| 12| 3.3 15V| 1.23V to 37V| 3.3V| 12V| 5V 52   SIMPLE SWITCHER Undefined     No   LM2575
LM2575HV LM2575HV 1000 4 60 1.23| 5| 15| 12| 3.3 57| 5| 15| 12| 3.3 52 52 75| 88| 77 Yes No No No Yes No Switching Regulator -40 125 Yes| No No Voltage Buck SIMPLE SWITCHER regulator Yes No Undefined 5| Undefined| 15| 12| 3.3 1.23V to 57V| 15V| 3.3V| 12V| 5V 52   SIMPLE SWITCHER Undefined     No   LM2575HV
LM2590HV LM2590HV 1000 4.5 60 1.23| 5| 3.3 57| 5| 3.3 150 150 76| 77| 82 Yes Yes Yes No No No Switching Regulator -40 125 Yes| No No Voltage Buck SIMPLE SWITCHER regulator, error output delay Yes No Undefined 5| Undefined| 3.3 1.23V to 57V| 3.3V| 5V 150   SIMPLE SWITCHER Undefined     No   LM2590HV
LM2590HV-AQ LM2590HV-AQ 1000 4.5 60 5 5 150 150 82 Yes Yes Yes No No No Switching Regulator -40 150 No No Voltage Buck SIMPLE SWITCHER regulator, error output delay Yes No Undefined 5 5V 150   SIMPLE SWITCHER Undefined     No   LM2590HV-AQ
LM2591HV LM2591HV 1000 4.5 60 1.23| 5| 3.3 57| 5| 3.3 150 150 76| 77| 82 Yes No No No No No Switching Regulator -40 125 Yes| No No Voltage Buck SIMPLE SWITCHER regulator Yes No Undefined 5| Undefined| 3.3 1.23V to 57V| 3.3V| 5V 150   SIMPLE SWITCHER Undefined     No   LM2591HV
LM2595 LM2595 1000 7| 4.75| 4.5| 15 40 1.23| 5| 12| 3.3 5| 37| 12| 3.3 150 150 -| 90| 78| 82 Yes No No No Yes No Switching Regulator -| -40 -| 125 Yes| No No Voltage Buck SIMPLE SWITCHER regulator Yes No Undefined 5| Undefined| 12| 3.3 1.23V to 37V| 3.3V| 5V| 12V 150   SIMPLE SWITCHER Undefined     No   LM2595
LM2598 LM2598 1000 7| 4.75| 4.5| 15 40 1.23| 5| 12| 3.3 5| 37| 12| 3.3 150 150 -| 90| 78| 82 Yes Yes Yes No Yes No Switching Regulator -40 125 Yes| No No Voltage Buck SIMPLE SWITCHER regulator, error output delay Yes No Undefined 5| Undefined| 12| 3.3 1.23V to 37V| 3.3V| 5V| 12V 150   SIMPLE SWITCHER Undefined     No   LM2598
LM2672 LM2672 1000 6.5 40 1.23 37 260 260 90 Yes No Yes Yes - No Switching Regulator -40 125 Yes No Voltage with Vin Feedforward Buck Internal Type 3 compensation, 1.5% output voltage accuracy, SIMPLE SWITCHER regulator Yes No Undefined Undefined 1.23V to 37V 260   SIMPLE SWITCHER Undefined     No   LM2672
LM2675 LM2675 1000 15| 6.5 40 1.23| 5| 12| 3.3 5| 37| 12| 3.3 260 260 94| 86| 90 Yes No No No - No Switching Regulator -40 125 Yes| No No Voltage with Vin Feedforward Buck Internal Type 3 compensation, 1.5% output voltage accuracy, SIMPLE SWITCHER regulator Yes No Undefined 5| Undefined| 12| 3.3 1.23V to 37V| 3.3V| 12V| 5V 260   SIMPLE SWITCHER Undefined     No   LM2675
LM2734 LM2734 1000 3 20 0.8 18 1600| 550 1600| 550 94| 90 Yes No Yes No No No Switching Regulator -40 125 Yes No Current Buck OVP, internal compensation, 30nA shutdown current, pulse-by-pulse current limit Yes No - Undefined 0.8V to 18V 1600| 550 Undefined Undefined 1 Yes   No   LM2734
LM2734Z LM2734Z 1000 3 20 0.8 18 3000 3000 88 Yes No Yes No No No Switching Regulator -40 125 Yes No Current Buck OVP, internal compensation, 30nA shutdown current, pulse-by-pulse current limit Yes No - Undefined 0.8V to 18V 3000 Undefined Undefined 1 Yes   No   LM2734Z
LM2825 LM2825 1000 7| 4.75| 4.5| 15 40 1.23| 5| 7| 12| 3.3 5| 15| 8| 12| 3.3 150 150 81| 78| 80 Yes No Yes No No No Switching Regulator -40 125 Yes| No No Voltage Buck Totally integrated switching power supply, no external components Yes| No No Undefined 5| Undefined| 12| 3.3 1.23V to 8V| 3.3V| 7V to 15V| 5V| 12V 150 Undefined Undefined Undefined     No   LM2825
LM2830 LM2830 1000 3 5.5 0.6 4.5 1600| 3000 1600| 3000 93 Yes No Yes No No No Switching Regulator -40 125 Yes No Current Buck Internal compensation Yes No Undefined Undefined 0.6V to 4.5V 1600| 3000 Undefined Undefined 1 Yes   No   LM2830
LM34930 LM34930 1000 8 33 2.5 30 Undefined 2000 92.2 Yes No Yes No Yes No Switching Regulator -40 125 Yes Yes Constant on-time Buck No compensation req'd; ultra fast transient response, over-voltage shutdown, over-voltage indicator Yes No Undefined Undefined 2.5V to 30V Undefined 2.5 Undefined Undefined Yes Yes No   LM34930
LM5010 LM5010 1000 8 75 2.5 70 50 1000 91 Yes No Yes No Yes No Switching Regulator -40 125 Yes Yes Constant on-time Buck No compensation required, ultra-fast transient response Yes No Undefined Undefined 2.5V to 70V 1000 Undefined Undefined Undefined Undefined   No   LM5010
LM5010A LM5010A 1000 6 75 2.5 70 50 1000 95 Yes No Yes No Yes No Switching Regulator -40 150 Yes Yes Constant on-time Buck No compensation required, ultra-fast transient response Yes No Undefined Undefined 2.5V to 70V 1000 Undefined Undefined Undefined Yes   No   LM5010A
LM2578A LM2578A 750 2 40     1 100 Undefined No No No No Yes Yes Switching Controller -40 125 Yes Yes Voltage Buck, Boost, Flyback, Inverting FB and NFB pins Yes No   Undefined Undefined 20 1 Undefined Undefined     No Undefined LM2578A
LM2736 LM2736 750 3 18 1.25 16 1600| 550 1600| 550 90 Yes No Yes No No No Switching Regulator -40 125 Yes No Current Buck OVP, internal compensation Yes No - Undefined 1.25V to 13V 1600| 550 Undefined Undefined Undefined     No   LM2736
LM3578A LM3578A 750 Undefined 40 1 Undefined 1 100 - No No No No Yes Yes Switching Regulator 0 125 Yes Yes Voltage Buck, Boost, Flyback, Inverting FB and NFB pins Yes No Undefined Undefined Undefined 20 1 Undefined Undefined     No   LM3578A
LM2694 LM2694 600 8 30 2.5 24 50 1000 93 Yes No Yes No Yes No Switching Regulator -40 125 Yes Yes Constant on-time Buck No compensation required, ultra-fast transient response Yes No Undefined Undefined 2.5V to 24V 1000   Undefined Undefined     No   LM2694
LM34919 LM34919 600 8 40 2.5 35 Undefined 1600 90 Yes No Yes No Yes No Switching Regulator -40 125 Yes Yes Constant on-time Buck No compensation req'd; ultra fast transient response Yes No Undefined Undefined 2.5V to 35V Undefined Undefined Undefined Undefined Yes Yes No   LM34919
LM22671 LM22671 500 4.5 42 1.285 Undefined 200 1000 91 Yes No Yes Yes No No Switching Regulator -40 125 Yes Yes Voltage Mode Control Buck 500 kHz Default Switching Fequency Yes No Undefined   Undefined 500 1.285 SIMPLE SWITCHER Undefined No No No   LM22671
LM22674 LM22674 500 4.5 42 1.285 Undefined Undefined Undefined 91 Yes No No No Yes No Switching Regulator -40 125 Yes No Voltage Mode Control Buck 500 kHz Switching Frequency| 500 kHz Default Switching Frequency Yes No Undefined   Undefined 500 1.285 SIMPLE SWITCHER Undefined No No No   LM22674
LM25007 LM25007 500 9 42 2.5 37 50 800 93 Yes No No No Yes No Switching Regulator -40 125 Yes Yes Constant on-time Buck Internal startup regulator for Vin>9V, internal 42V/07A N-FET, Pull Ron pin to ground for shutdown Yes No Undefined Undefined 2.5V to 37V 800 Undefined Undefined Undefined Yes   No   LM25007
LM25574 LM25574 500 6 42 1.23 40 50 1000 86 Yes No Yes Yes Yes No Switching Regulator -40 125 Yes Yes Current Buck 1.5% feedback voltage accuracy, emulated current mode Yes No Undefined Undefined 1.23V to 37V 1000   SIMPLE SWITCHER Undefined Yes Yes No   LM25574
LM2574 LM2574 500 4 40 1.23| 5| 12| 3.3 5| 37| 12| 3.3 52 52 72| 77| 88 Yes No No No Yes No Switching Regulator -40 125 Yes| No No Voltage Buck SIMPLE SWITCHER regulator Yes No Undefined 5| Undefined| 12| 3.3 1.23V to 37V| 3.3V| 5V| 12V 52   SIMPLE SWITCHER Undefined     No   LM2574
LM2574HV LM2574HV 500 4 60 1.23| 5| 15| 12 57| 5| 15| 12 52 52 77| 88 Yes No No No Yes No Switching Regulator -40 125 Yes| No No Voltage Buck SIMPLE SWITCHER regulator Yes No Undefined 5| Undefined| 15| 12 1.23V to 57V| 15V| 5V| 12V 52   SIMPLE SWITCHER Undefined     No   LM2574HV
LM2594 LM2594 500 7| 4.75| 4.5| 15 40 1.23| 5| 12| 3.3 5| 37| 12| 3.3 150 150 88| 82| 80 Yes No No No Yes No Switching Regulator -40 125 Yes| No No Voltage Buck SIMPLE SWITCHER regulator Yes No Undefined 5| Undefined| 12| 3.3 1.23V to 37V| 3.3V| 5V| 12V 150   SIMPLE SWITCHER Undefined     No   LM2594
LM2594HV LM2594HV 500 7| 4.75| 4.5| 15 60 1.23| 5| 12| 3.3 57| 5| 12| 3.3 150 150 88| 82| 80 Yes Yes No No - No Switching Regulator -40 125 Yes| No No Voltage Buck SIMPLE SWITCHER regulator Yes No Undefined 5| Undefined| 12| 3.3 1.23V to 57V| 3.3V| 5V| 12V 150   SIMPLE SWITCHER Undefined     No   LM2594HV
LM2597 LM2597 500 7| 4.75| 4.5| 15 40 1.23| 5| 12| 3.3 5| 37| 12| 3.3 150 150 88| 82| 80 Yes Yes Yes No Yes No Switching Regulator -| -40 -| 125 Yes| No No Voltage Buck SIMPLE SWITCHER regulator, error output delay Yes No Undefined 5| Undefined| 12| 3.3 1.23V to 37V| 3.3V| 5V| 12V 150   SIMPLE SWITCHER Undefined     No   LM2597
LM2597HV LM2597HV 500 7| 4.75| 4.5| 15 60 1.23| 5| 12| 3.3 57| 5| 12| 3.3 150 150 88| 82| 80 Yes Yes Yes No Yes No Switching Regulator -40 125 Yes| No No Voltage Buck SIMPLE SWITCHER regulator, error output delay Yes No Undefined 5| Undefined| 15| 3.3 1.23V to 57V| 15V| 3.3V| 5V 150   SIMPLE SWITCHER Undefined     No   LM2597HV
LM2671 LM2671 500 6.5 40 1.23 37 260 260 90 Yes No Yes Yes - No Switching Regulator -40 125 Yes No Voltage with Vin Feedforward Buck Internal Type 3 compensation, 1.5% output voltage accuracy, SIMPLE SWITCHER regulator Yes No Undefined Undefined 1.23V to 37V 260   SIMPLE SWITCHER Undefined     No   LM2671
LM2674 LM2674 500 15| 6.5 40 1.23| 5| 12| 3.3 5| 37| 12| 3.3 260 260 94| 86| 90 Yes No No No - No Switching Regulator -40 125 Yes| No No Voltage with Vin Feedforward Buck Internal Type 3 compensation, 1.5% output voltage accuracy, SIMPLE SWITCHER regulator Yes No Undefined 5| Undefined| 12| 3.3 1.23V to 37V| 3.3V| 12V| 5V 260   SIMPLE SWITCHER Undefined     No   LM2674
LM5007 LM5007 500 9 75 2.5 73 50 800 93 Yes No No No Yes No Switching Regulator -40 125 Yes Yes Constant on-time Buck Internal startup regulator for Vin>9V, internal 80V/0.7A N-FET, Pull Ron pin to ground for shutdown Yes No Undefined Undefined 2.5V to 73V 800 null| Undefined Undefined Undefined Yes | null No   LM5007
LM5574 LM5574 500 6 75 1.23 70 50 500 85 Yes No Yes Yes Yes No Switching Regulator -40 125 Yes Yes Current Buck 1.5% feedback voltage accuracy, emulated current mode Yes No Undefined Undefined 1.23V to 70V 500   SIMPLE SWITCHER Undefined Yes Yes No   LM5574
LM5008 LM5008 350 9.5 95 2.5 75 50 600 92 Yes No No No Yes No Switching Regulator -40 125 Yes Yes Constant on-time Buck Internal startup regulator for Vin>9V, internal 100V/0.5A N-FET, Pull Ron pin to ground for shutdown Yes No Undefined Undefined 2.5V to 75V 600 Undefined Undefined Undefined     No   LM5008
LM5009 LM5009 150 9.5 95 2.5 85 50 600 93 Yes No No No Yes No Switching Regulator -40 125 Yes Yes Constant on-time Buck Internal startup regulator for Vin>9V, internal 100V/0.25A N-FET, Pull Ron pin to ground for shutdown Yes No Undefined Undefined 2.5V to 85V 600 Undefined Undefined Undefined   Yes No   LM5009
电源管理技术支持
Excel 文档格式下载 Excel 文档格式选型指南下载 - -降压转换器Buck Converters
Buck Synchronous Integrated-switch Regulators（39）
Buck Non-Synch. Integrated-switch Regulators（80）
Buck Synchronous Switching Controllers（30）
Buck Non-Synch. Switching Controllers（10）
Fractional-Gain Switched Capacitor Converters
Switched Capacitor Regulators（6）
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