TPS54332 具有 Eco-mode 的 3.5V 至 28V 输入、3.5A、1MHz 降压转换器 | 德州仪器 TI.com.cn

TPS54332
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具有 Eco-mode 的 3.5V 至 28V 输入、3.5A、1MHz 降压转换器

具有 Eco-mode 的 3.5V 至 28V 输入、3.5A、1MHz 降压转换器 - TPS54332
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描述

The TPS54332 is a 28-V, 3.5-A non-synchronous buck converter that integrates a low-RDS(on) high-side MOSFET. To increase efficiency at light loads, a pulse-skipping Eco-Mode feature is automatically activated. Furthermore, the 1-µA shutdown supply current allows the device to be used in battery-powered applications. Current mode control with internal slope compensation simplifies the external compensation calculations and reduces component count while allowing the use of ceramic output capacitors. A resistor divider programs the hysteresis of the input undervoltage lockout. An overvoltage transient protection circuit limits voltage overshoots during start-up and transient conditions. A cycle-by-cycle current limit scheme, frequency foldback and thermal shutdown protect the device and the load in the event of an overload condition. The TPS54332 is available in an 8-pin SOIC PowerPAD™ package.

特性

  • 3.5-V to 28-V input voltage range
  • Adjustable output voltage down to 0.8 V
  • Integrated 80-mΩ high-side MOSFET supports up to 3.5-A continuous output current
  • High efficiency at light loads with a pulse-skipping Eco-Mode™
  • Fixed 1-MHz switching frequency
  • Typical 1-µA shutdown quiescent current
  • Adjustable slow-start limits inrush currents
  • Programmable UVLO threshold
  • Overvoltage transient protection
  • Cycle-by-Cycle current limit, frequency foldback and thermal shutdown protection
  • Available in thermally enhanced 8-Pin SOIC PowerPAD™ package
  • Supported by WEBENCH™ tool (http://www.ti.com/lsds/ti/analog/webench/overview.page)

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WEBENCH® Designer TPS54332

  最小   最大 范围
输入电压  V 3.5 to 28.0V
输出电压  V 0.8 to 25V
输出电流  A ≤ 3.5A
环境温度  °C -40 to 150°C

参数

与其它产品相比 降压转换器(集成开关) 邮件 下载到电子表格中
Part number 立即下单 Vin (Min) (V) Vin (Max) (V) Vout (Min) (V) Vout (Max) (V) Iout (Max) (A) Regulated outputs (#) Switching frequency (Min) (kHz) Switching frequency (Max) (kHz) Iq (Typ) (mA) Features Control mode Duty cycle (Max) (%) Operating temperature range (C) Rating Package Group Type Package size: mm2:W x L (PKG)
TPS54332 立即下单 3.5     28     0.8     25     3.5     1     1000     1000     0.082     Enable
Light Load Efficiency
UVLO Adjustable
Soft Start Adjustable    
Current Mode     90     -40 to 150     Catalog     SO PowerPAD | 8     Converter     8SO PowerPAD: 19 mm2: 3.9 x 4.89 (SO PowerPAD | 8)    
TPS54231 立即下单 3.5     28     0.8     25     2     1     570     570     0.075     Enable
Light Load Efficiency
UVLO Adjustable
Soft Start Adjustable    
Current Mode     90     -40 to 150     Catalog     SOIC | 8     Converter     8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)    
TPS54232 立即下单 3.5     28     0.8     25     2     1     1000     1000     0.085     Enable
Light Load Efficiency
UVLO Adjustable
Soft Start Adjustable    
Current Mode     90     -40 to 150     Catalog     SOIC | 8     Converter     8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)    
TPS54233 立即下单 3.5     28     0.8     25     2     1     300     300     0.075     Enable
Light Load Efficiency
UVLO Adjustable
Soft Start Adjustable    
Current Mode     90     -40 to 150     Catalog     SOIC | 8     Converter     8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)    
TPS54331 立即下单 3.5     28     0.8     25     3     1     570     570     0.11     Enable
Light Load Efficiency
UVLO Adjustable
Soft Start Adjustable    
Current Mode     90     -40 to 150     Catalog     SO PowerPAD | 8
SOIC | 8    
Converter