产品概览
The TPS54040DGQR from Texas Instruments is a 42V input, 0.5A step-down DC/DC converter with integrated high-side MOSFET in an MSOP-10 PowerPAD package. Featuring current-mode control, 116µA IQ Eco-Mode, and adjustable switching frequency from 100kHz to 2.5MHz.
主要规格
| 输入电压 | 3.5 V to 42 V |
| 输出电流 | 0.5 A |
| Output Voltage | 0.8 V to 39 V (adjustable) |
| High-Side FET | 200 mΩ integrated |
| 开关频率 | 100 kHz to 2.5 MHz (adjustable) |
| 静态电流 | 116 µA typical (operating) |
| 关机电流 | 1.3 µA typical |
| 控制模式 | Current mode |
| Duty Cycle (max) | 98% |
| Reference Voltage | 0.8 V |
| 特点 | Eco-Mode, PWRGD, slow start, sync |
| 包装 | MSOP-10 with PowerPAD |
| 工作温度 | -40°C to +150°C |
特点
- 3.5V to 42V wide input range with integrated 200mΩ high-side MOSFET
- 116µA operating quiescent current with pulse-skip Eco-Mode for light-load efficiency
- 100kHz to 2.5MHz adjustable switching frequency with external clock synchronization
- Adjustable slow start/sequencing and UV/OV power good output
- Adjustable UVLO voltage and hysteresis via enable pin resistors
- MSOP-10 PowerPAD package for excellent thermal performance
应用
- 12V and 24V industrial and commercial low-power buck regulation
- Aftermarket auto accessories: video, GPS, entertainment systems
- Wide-input-range distributed power supply point-of-load conversion