TPP15051

170-V, 0.8-A Buck Converter

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概述
开发资源
应用
订购明细

概述

The TPP15051 is a wide input range, non-synchronous DC-DC buck converter that uses peak current mode control. The TPP15051 integrates a 170-V, 1.3-Ω power MOSFET with 1.5-A peak current limit having up to 0.8-A output current capability.

The TPP15051 has a high-voltage startup circuitry to enable the device from high input voltage directly. The TPP15051 has a built-in 12-ms soft-start time to minimize the inrush current during startup. In the moderate to heavy load condition, the TPP15051 works in PWM mode at 100-kHz switching frequency. In the light load condition, the TPP15051 enters PFM mode to reduce the switching loss and improve the efficiency. The TPP15051 also has spread spectrum switching frequency dithering to reduce the EMI.

The TPP15051 features a cycle-by-cycle current limit in over-load conditions. Furthermore, when the output voltage is 10% below the regulation target and the current limit is touched for 128 switching cycles, or the output is short to ground, the TPP15051 enters hiccup mode and stops PWM switching for 65 ms. After hiccup times out, the TPP15051 re-starts the soft startup.

The TPP15051 is available in the SOP8 package.

Status

Production
Rating

Industrial
VIN (V)

16~170
Output (V)

3.3~50
Max Output Current (A)

0.8
Control Mode

Peak Current Mode
Switching Frequency (kHz)

35 ~ 100
Features

Auto PFM, Spread Spectrum
Temperature Range (℃)

-40 to +125
Package

SOP8

开发资源

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- 思瑞浦模拟产品选型册
  
  选型手册
  
  中文
  
  03/06/2026
- Datasheet_TPP15051
  
  数据手册
  
  英文
  
  03/02/2026
  
  170-V, 0.8-A Buck Converter
- Development of Buck Converter
  
  技术文章
  
  英文
  
  01/19/2024
- 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
- Introduction to Constant-On-Time Control Topology of Buck Converter
  
  技术文章
  
  英文
  
  01/19/2024