Base Part Number |
数据手册DataSheet下载 |
Topology |
PWM Mode |
Input Min Voltage |
Input Max Voltage |
Frequency Max |
Adj Switch Frequency |
Frequency Min |
Sync Pin |
Sync Type |
UVLO |
On/Off Pin |
Error Flag |
Current Limit Type |
Gate Drive |
Output Current |
Feedback Voltage |
Feedback Tolerance |
Output Range |
Special Features |
Temperature Min |
Temperature Max |
Step-Down |
Step-Up |
Flyback |
Inverting |
RegType |
Adjustable Output |
Output Power |
Switching Frequency |
Efficiency (peak) |
Multiple Output Capability |
AEC Q-100 Automotive Grade |
Automotive Selection Guide |
PowerWise |
Quiescent Current |
数据手册DataSheet下载 |
LM3481 |
LM3481 |
Boost, SEPIC, Flyback |
|
2.97 |
48 |
1000 |
Yes |
100 |
Yes |
|
|
Yes |
No |
|
|
Undefined |
1.275 |
|
1.275V min |
Adjustable UVLO |
-40 |
125 |
No |
Yes |
Yes |
No |
Switching Controller |
Yes |
Undefined |
|
Undefined |
Yes |
|
Yes |
|
|
LM3481 |
LM3478 |
LM3478 |
Boost, Sepic, Flyback |
|
2.95 |
40 |
1000 |
Yes |
100 |
Yes |
|
|
Yes |
No |
|
|
- |
1.26 |
|
1.26V min |
|
-40 |
125 |
No |
Yes |
Yes |
No |
Switching Controller |
Yes |
- |
1000 |
- |
Yes |
Undefined |
Yes |
|
|
LM3478 |
LM3488 |
LM3488 |
Boost, Sepic, Flyback |
|
2.95 |
40 |
1000 |
Yes |
100 |
Yes |
|
|
Yes |
No |
|
|
- |
1.26 |
|
1.26V min |
|
-40 |
125 |
No |
Yes |
Yes |
No |
Switching Regulator |
Yes |
- |
1000 |
- |
Yes |
Undefined |
Yes |
|
|
LM3488 |
LM5116 |
LM5116 |
Buck |
Current |
6 |
100 |
1000 |
Yes |
50 |
Yes |
|
|
Yes |
No |
|
|
20000 |
1.215 |
1.5 |
1.215V to 80V |
High step-down ratio using emulated current mode control |
-40 |
125 |
Yes |
No |
No |
No |
Switching Controller |
Yes |
Undefined |
|
95 |
No |
0 |
Yes |
Yes |
|
LM5116 |
LM3578A |
LM3578A |
Buck, Boost, Flyback, Inverting |
Voltage |
Undefined |
40 |
100 |
Yes |
1 |
No |
|
|
No |
No |
|
|
750 |
1 |
7 |
Undefined |
FB and NFB pins |
0 |
125 |
Yes |
Yes |
Yes |
Yes |
Switching Regulator |
Yes |
Undefined |
20 |
- |
No |
Undefined |
|
|
|
LM3578A |
LM5021 |
LM5021 |
Flyback, Forward |
Current |
8 |
30 |
1000 |
Yes |
50 |
Yes |
Up |
No |
Yes |
No |
cycle-cycle, hiccup |
0.7 |
Undefined |
Undefined |
|
set by external feedback network |
For offline (AC-DC) applications, direct opto-coupler interface |
-40 |
125 |
Yes |
Yes |
Yes |
Yes |
Switching Controller |
Yes |
Undefined |
500 |
Undefined |
Yes |
|
|
|
|
LM5021 |
LM5020 |
LM5020 |
Flyback, Inverting, Buck, Boost, Forward |
Current |
13 |
100 |
1000 |
Yes |
50 |
Yes |
Up |
Yes |
Yes |
No |
cycle-cycle |
1 |
- |
1.25 |
2 |
Undefined |
80% and 50% duty cycle limit (-2 and -1 versions), Programmable UVLO, error amplifier for non-isolated designs, leading-edge blanking, high current gate drive |
-40 |
125 |
Yes |
Yes |
Yes |
Yes |
Switching Controller |
Yes |
300 |
1000 |
85 |
Yes |
|
|
Yes |
|
LM5020 |
LM5025 |
LM5025 |
Forward Active Clamp |
Voltage/Feed-forward |
8 |
90 |
1000 |
Yes |
100 |
Yes |
Up, down |
Yes |
Yes |
No |
cycle-cycle, hiccup |
3 |
Undefined |
|
|
Undefined |
|
-40 |
125 |
Yes |
Yes |
No |
Yes |
Switching Controller |
Yes |
300 |
1000 |
92.5 |
Yes |
|
|
Yes |
|
LM5025 |
LM5025A |
LM5025A |
Forward Active Clamp |
Voltage/Feed-forward |
8 |
90 |
1000 |
Yes |
100 |
Yes |
Up, down |
Yes |
Yes |
No |
cycle-cycle, hiccup |
3 |
- |
|
|
- |
|
-40 |
125 |
Yes |
Yes |
Yes |
Yes |
Switching Controller |
Yes |
300 |
1000 |
92.5 |
Yes |
|
|
Yes |
|
LM5025A |
LM5025B |
LM5025B |
Forward Active Clamp |
Voltage/Feed-forward |
8 |
100 |
1000 |
Yes |
100 |
Yes |
Up, down |
Yes |
Yes |
No |
cycle-cycle, hiccup |
3 |
Undefined |
Undefined |
Undefined |
Undefined |
Undefined |
-40 |
125 |
Yes |
Yes |
No |
Yes |
Switching Controller |
Yes |
300 |
1000 |
92.5 |
Yes |
|
|
Yes |
|
LM5025B |
LM5026 |
LM5026 |
Forward Active Clamp |
Current |
8 |
100 |
1000 |
Yes |
100 |
Yes |
Input, Output |
Yes |
Yes |
No |
cycle-cycle, hiccup |
3 |
- |
|
|
Undefined |
High bandwidth opto interface; programmable max. duty cycle |
-40 |
125 |
Yes |
Yes |
Yes |
Yes |
Switching Controller |
Yes |
300 |
1000 |
92.5 |
Yes |
|
|
Yes |
|
LM5026 |
LM5034 |
LM5034 |
Forward Active Clamp |
Current |
13 |
100 |
1000 |
Yes |
100 |
Yes |
Up |
Yes |
Yes |
No |
cycle-cycle, hiccup |
2.5 |
Undefined |
|
|
NA |
Controls dual or single interleaved converter |
-40 |
125 |
Yes |
Yes |
No |
Yes |
Switching Controller |
Yes |
600 |
2000 |
94 |
Yes |
|
|
Yes |
|
LM5034 |
LM5032 |
LM5032 |
Forward, Flyback |
Current |
13 |
100 |
1000 |
Yes |
100 |
Yes |
Up |
Yes |
Yes |
No |
cycle-cycle, hiccup |
2.5 |
- |
|
|
|
Controls dual or single interleaved converter |
-40 |
125 |
Yes |
Yes |
Yes |
Yes |
Switching Controller |
Yes |
600 |
2000 |
85 |
Yes |
|
|
Yes |
|
LM5032 |
LM5035A |
LM5035A |
Half-Bridge |
Voltage |
8 |
105 |
1000 |
Yes |
50 |
Yes |
Up |
Yes |
No |
No |
cycle-cycle, hiccup |
2 |
Undefined |
Undefined |
Undefined |
Undefined |
SyncFET driver, high bandwidth opto interface, thermal sensor/OVP comparator |
-40 |
125 |
Yes |
Yes |
Yes |
Yes |
Switching Controller |
Yes |
100 |
1000 |
92 |
Yes |
|
|
Yes |
|
LM5035A |
LM5035 |
LM5035 |
Half-bridge |
Voltage |
8 |
105 |
1000 |
Yes |
50 |
Yes |
Up |
Yes |
No |
No |
cycle-cycle, hiccup |
2 |
Undefined |
|
|
Undefined |
SyncFET driver, high bandwidth opto interface, thermal sensor/OVP comparator |
-40 |
125 |
Yes |
Yes |
Yes |
Yes |
Switching Controller |
Yes |
100 |
1000 |
92 |
Yes |
|
|
Yes |
|
LM5035 |
LM5030 |
LM5030 |
Push-Pull, Full-bridge, Half-bridge |
Current |
8 |
100 |
1000 |
Yes |
50 |
Yes |
Up |
No |
Yes |
No |
cycle-cycle, hiccup |
1.5 |
- |
1.25 |
2 |
Undefined |
Slope compensation, direct opto-coupler interface |
-40 |
125 |
Yes |
Yes |
No |
Yes |
Switching Controller |
Yes |
800 |
1000 |
95 |
Yes |
|
|
Yes |
|
LM5030 |
LM5033 |
LM5033 |
Push-Pull, Half-bridge, Full-bridge, IBC |
Voltage |
15 |
100 |
1000 |
Yes |
50 |
Yes |
Up |
No |
Yes |
No |
Hiccup |
1.5 |
Undefined |
1.25 |
2 |
Undefined |
Intermediate bus converter controller |
-40 |
125 |
Yes |
Yes |
No |
Yes |
Switching Controller |
Yes |
500 |
1000 |
95.5 |
Yes |
|
|
Yes |
|
LM5033 |
LM25037 |
LM25037 |
Push-Pull,Half-Bridge and Full-Bridge |
Feed Forward Voltage/Current Mode |
5.5 |
75 |
2000 |
Yes |
50 |
Yes |
Up |
Yes |
No |
No |
Cycle-Cycle and Hiccup |
1.2 |
Undefined |
1.25 |
2 |
Undefined |
Dual-Mode control,Maximum Duty Cycle Limit, 5V Reference, Soft-Start |
-40 |
125 |
Yes |
Yes |
No |
No |
Switching Controller |
Yes |
50 |
250 |
88 |
No |
0 |
No |
Yes |
|
LM25037 |
LM5037 |
LM5037 |
Push-Pull,Half-Bridge and Full-Bridge |
Feed-Forward Voltage Mode/Current Mode |
13 |
100 |
2000000 |
Yes |
50 |
Yes |
Up |
Yes |
No |
No |
Cycle-Cycle and Hiccup-Mode Restart |
1.2 |
Undefined |
1.25 |
2 |
Undefined |
Soft-start, 5V Reference, UVLO with adjustable hysteresis |
-40 |
125 |
Yes |
Yes |
No |
Yes |
Switching Controller |
Yes |
Undefined |
Undefined |
88 |
Yes |
0 |
Yes |
Yes |
3 |
LM5037 |
LM5115 |
LM5115 |
Secondary-side post regulator |
Voltage/current-injection |
4.5 |
75 |
1000 |
Yes |
50 |
Yes |
Up |
No |
Yes |
No |
cycle-cycle |
2.5 |
20000 |
0.75 |
1.7 |
0.75V to 13.5V |
Tracking; Operates from AC or DC input; Voltage mode/current injection simplifies loop compensation; SSPR; Synchronization |
-40 |
125 |
Yes |
No |
No |
No |
Switching Controller |
Yes |
300 |
1000 |
90 |
No |
|
Yes |
|
|
LM5115 |
LM5115A |
LM5115A |
Secondary-side post regulator |
Valley current mode |
4.5 |
75 |
1000 |
Yes |
50 |
Yes |
Up |
No |
Yes |
No |
cycle-cycle |
2.5 |
20000 |
0.75 |
1.7 |
0.75 to 13.5V |
Tracking |
-40 |
125 |
Yes |
No |
No |
No |
Switching Controller |
Yes |
300 |
1000 |
90 |
No |
Undefined |
Yes |
Undefined |
|
LM5115A |
LM25115 |
LM25115 |
Synchronous secondary-side post-regulator |
Voltage/current-injection |
4.5 |
42 |
1000 |
Yes |
100 |
Yes |
Up |
No |
Yes |
No |
cycle-cycle |
2.5 |
20000 |
0.75 |
1.7 |
0.75V to 13.5V |
|
-40 |
125 |
Yes |
No |
No |
No |
Switching Controller |
Yes |
300 |
1000 |
90 |
Yes |
|
Yes |
|
|
LM25115 |
LM5041 |
LM5041 |
Voltage-fed or Current-fed push-pull |
Current |
10 |
100 |
1000 |
Yes |
50 |
Yes |
Up |
Yes |
Yes |
No |
cycle-cycle, hiccup |
1.5 |
- |
0.75 |
2 |
- |
Programmable deadtime, overlap timing |
-40 |
125 |
Yes |
Yes |
No |
Yes |
Switching Controller |
Yes |
500 |
1000 |
91 |
Yes |
|
|
Yes |
|
LM5041 |
LM5041A |
LM5041A |
Voltage-fed or Current-fed push-pull |
Current |
10 |
100 |
1000 |
Yes |
50 |
Yes |
Up |
Yes |
Yes |
No |
cycle-cycle |
1.5 |
Undefined |
0.75 |
2 |
Undefined |
Programable deatime, overlap timing |
-40 |
125 |
Yes |
Yes |
No |
Yes |
Switching Controller |
Yes |
500 |
1000 |
91 |
Yes |
|
|
Yes |
|
LM5041A |