TPQ50571

2.2-MHz Wide Input Nonsynchronous Boost/SEPIC/Flyback Converter

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概述

The TPQ5057x (TPQ5057 or TPQ50571) is a wide-inputrange, non-synchronous boost converter with an integrated 48-V, 7-A power switch. The device can be used in boost, SEPIC, and flyback topologies.

The TPQ5057x uses a peak current control scheme. The device can start up from a minimum voltage of 2.9 V. When the VIN pin is powered by an auxiliary supply voltage above 2.9 V, the supply voltage for the power stage can be down to 1.5 V.

The TPQ5057x integrates a wide input LDO that supports the input voltage of up to 45 V and outputs 5 V at the VCC pin. The switching frequency is either set by an external resistor or synchronized to an external clock from 100 kHz to 2.2 MHz. Switching at 2.2 MHz allows for a small solution size and fast transient response. The TPQ5057x supports the use of an external VCC supply to improve efficiency. Low operating current and pulseskipping operation improve efficiency at light loads.

The device has built-in protection features such as cycleby-cycle current limit, overvoltage protection, hiccup mode overload protection, and thermal shutdown. Additional features include low shutdown current, programmable soft start, programmable input UVLO, spread spectrum, and power-good indicator.

The TPQ5057x is available in a 3-mm x 3-mm, 16-pin QFN3x3 package.

Status

Production
Rating

Industrial
VIN (V)

3~45
Output (V)

VIN~45
Max Output Current (A)

6.2
Temperature Range (℃)

-40 to +125
Package

QFN3X3-16

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- Datasheet_TPQ5057_TPQ50571
  
  数据手册
  
  英文
  
  04/15/2025
  
  2.2-MHz Wide Input Nonsynchronous Boost/SEPIC/Flyback Converter
- Introduction to Latch-up and the Preventive Measures
  
  技术文章
  
  英文
  
  01/19/2024
- Introduction to ESD Performance of a Silicon Chip
  
  技术文章
  
  英文
  
  01/19/2024
- Application Tips on ESD-EOS
  
  技术文章
  
  英文
  
  01/19/2024
- 思瑞浦模拟产品选型册
  
  选型手册
  
  中文
  
  01/19/2024