TPS54362-Q1 具有低 IQ、电压监控和复位功能的汽车类 3A、60V 降压 DC/DC 转换器
TPS54362-Q1 描述
The TPS54362 is a step down switch mode power supply with voltage supervisor. Integrated input voltage line feed forward topology improves line transient regulation of the voltage mode buck regulator. The regulator has a cycle-by cycle current limit. A pulse skip mode operation under no load reduces the supply current to 65uA. Using the enable pin, the supply shutdown current is reduced to 1uA.
An open drain reset signal indicates when the nominal output drops below the threshold set by an external resistor divider network. The output voltage start up ramp is controlled by a soft start capacitor. There is an internal undervoltage shut down which is activated when the input supply ramps down to 2
|
TPS54162-Q1 |
TPS54262-Q1 |
TPS54362-Q1 |
| Iout(Max)(A) |
1 |
2 |
3 |
| Vin(Min)(V) |
3.6 |
3.6 |
3.6 |
| Vin(Max)(V) |
60 |
60 |
60 |
| Vout(Min)(V) |
0.9 |
0.9 |
0.9 |
| Vout(Max)(V) |
18 |
18 |
18 |
| Iq(Typ)(mA) |
0.05 |
0.05 |
0.065 |
| Switching Frequency(Max)(kHz) |
2200 |
2200 |
2200 |
| Switch Current Limit(Typ)(A) |
2.15 |
3.2 |
6 |
| Topology |
Buck |
Buck |
Buck |
| Operating Temperature Range(°C) |
-40 to 125 |
-40 to 125 |
-40 to 125 |
| Pin/Package |
20HTSSOP |
20HTSSOP |
20HTSSOP |
| Rating |
Automotive |
Automotive |
Automotive |
| Regulated Outputs(#) |
|
1 |
1 |
| Thermal Shutdown |
Yes |
Yes |
Yes |
TPS54362-Q1 特性
- Withstands Transients up to 60V With an Operating
Range of 3.6V to 48V
- Asynchronous Switch Mode Regulator With External
Components (L and C), Load Current up to 3A (max)
- 0.8V ± 1.5% Voltage Reference
- 200kHz to 2.2MHz Switching Frequency
- High Voltage Tolerant Enable Input for ON/OFF State
- Soft Start on Enable Cycle
- Slew Rate Control on Internal Power Switch
- External Clock Input for Synchronization
- Pulse Skip Mode (PFM) During Light Output Loads With
Quiescent Current = 65uA Typical (LPM Operation)
- External Compensation for Wide Bandwidth Error Amplifier
- Internal Undervoltage Lock Out UVLO
- Programmable Reset Power on Delay
- Reset Function Filter Time for Fast Negative Transients
- Programmable Overvoltage Output Monitoring
- Programmable Undervoltage Output Monitoring, Issuance of
Reset if Output Falls Below Threshold
- Thermal Shutdown During Excessive Power Dissipation
- Switch Current Limit Protection
- Short Circuit and Overcurrent Protection of FET
- Junction Temperature Range: –40°C to 150°C
- Package: 20-pin HTSSOP PowerPADTM
TPS54362-Q1 芯片订购指南
| 器件 |
状态 |
温度 (oC) |
价格（美元） |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| TPS54362QPWPRQ1 |
ACTIVE |
-40 to 85 |
2.05 | 1ku |
HTSSOP (PWP) | 16 |
90 | TUBE |
54362Q1 |
TPS54362-Q1 质量与无铅数据
| 器件 |
环保计划* |
铅/焊球涂层 |
MSL 等级/回流焊峰 |
环保信息与无铅 (Pb-free) |
DPPM / MTBF / FIT 率 |
| TPS54362QPWPRQ1 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-3-260C-168 HR |
|
TPS54362QPWPRQ1 |
TPS54362-Q1 应用技术支持与电子电路设计开发资源下载
- TPS54362-Q1 数据资料 dataSheet 下载.PDF
- TI 德州仪器非隔离式开关 DC/DC 调节器选型与价格参考 . xls
- Dual MOSFET Driver
(PDF 498 KB)
- 全面认识开关型电源中的BUCK-BOOST功率级 (Rev. A)
(PDF 2206 KB)
- Understanding Boost Power Stages In Switchmode Power Supplies
(PDF 149 KB)
- Understanding Buck Power Stages In Switchmode Power Supplies
(PDF 173 KB)
- 标准线性产品交叉参考 (Rev. D)
(PDF 1058 KB)
- 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
- 所选封装材料的热学和电学性质 (PDF 645 KB)
- 高速数据转换 (PDF 1967 KB)