TPS61175 具有软启动和可编程开关频率的 3A 高压升压转换器 | 德州仪器 TI.com.cn

TPS61175 (正在供货)

具有软启动和可编程开关频率的 3A 高压升压转换器

具有软启动和可编程开关频率的 3A 高压升压转换器 - TPS61175
数据表 勘误表
 

备选器件推荐

  • TPS55340  -  For applications requiring wider Vin range and/ or higher current limits.

描述

The TPS61175 device is a monolithic switching regulator with integrated 3-A, 40-V power switch. The device can be configured in several standard switching-regulator topologies, including boost, SEPIC, and flyback. The device has a wide input voltage range to support application with input voltage from multicell batteries or regulated 5-V, 12-V power rails.

The TPS61175 regulates the output voltage with current mode PWM (pulse width modulation) control. The switching frequency of PWM is set by either an external resistor or an external clock signal. The user can program the switching frequency from 200 kHz to 2.2 MHz.

The device features a programmable soft-start function to limit inrush current during start-up, and has other built-in protection features, such as pulse-by-pulse overcurrent limit and thermal shutdown. The TPS61175 is available in 14-pin HTSSOP package with PowerPad.

特性

  • 2.9-V to 18-V Input Voltage Range
  • 3-A, 40-V Internal Switch
  • High-Efficiency Power Conversion: Up to 93%
  • Frequency Set by External Resistor: 200 kHz to
    2.2 MHz
  • Synchronous External Switching Frequency
  • User-Defined Soft-Start into Full Load
  • Skip-Switching Cycle for Output Regulation at
    Light Load
  • 14-Pin HTSSOP Package With PowerPad™
  • APPLICATIONS
    • 5-V to 12-V, 24-V Power Conversion
    • Supports SEPIC and Flyback Topologies
    • ADSL Modems
    • TV Tuners

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参数 与其它产品相比 升压转换器(集成开关)

 
Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Switch Current Limit (Typ) (A)
Regulated Outputs (#)
Switching Frequency (Min) (kHz)
Switching Frequency (Max) (kHz)
Iq (Typ) (mA)
Features
Duty Cycle (Max) (%)
Operating Temperature Range (C)
Type
Rating
Package Group
TPS61175
2.9    
18    
2.9    
38    
3.8    
1    
160    
2640    
3    
Enable
Frequency Synchronization
Light Load Efficiency    
93    
-40 to 85    
Converter    
Catalog    
HTSSOP | 14    

设计工具

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WEBENCH® Power Designer is now even easier to use. Try it now.

WEBENCH® Designer TPS61175

  最小   最大 范围
输入电压  V 2.9 to 18.0V
输出电压  V 2.9 to 38V
输出电流  A ≤ 3A
环境温度  °C -40 to 85°C


覆盖面积 BOM成本 效率


Preview design