PMP3080 High-Frequency Synchronous Buck Converter for Optimized Efficiency
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PMP3080 |
| 名称 |
High-Frequency Synchronous Buck Converter for Optimized Efficiency |
| 状态 |
PREVIEW |
| 价格（US$） |
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PMP3080 描述
The TPS40195 controller is used in high-frequency, synchronous buck power supplies. It is intended for input voltages between 4.5 and 20 V and load currents up to 20 A. It can operate at switching frequencies between 100 and 600 kHz allowing the circuit designer the option of optimizing for efficiency and higher power at the lower frequency or smaller size and lower cost at the high frequency. This chip uses voltage mode control for lower mid-frequency source impedance and quicker recovery from load transients. This circuit uses the TPS40195 in the synchronous buck configuration. A synchronous buck is typically used when the output voltage is always lower than the input voltage and at currents where a catch diode would dissipate too much heat. This design switches at 600 kHz which allows the use of a small inductor and ceramic output capacitors. With this high switching frequency, the control loop can be closed at a high frequency with good gain (> 10 dB) and good phase margin (> 45 degrees).
PMP3080 应用技术支持与电子电路设计开发资源下载
- TI 德州仪器非隔离式开关 DC/DC 调节器选型与价格参考 . xls
PMP3080 相关产品
| 器件型号 |
名称 |
产品系列 |
| TPS40195 |
4.5V TO 20V SYNCHRONOUS BUCK CONTROLLER WITH SYNCHRONIZATION AND POWER GOOD |
非隔离式开关 DC/DC 调节器 |
