TLV627432 2.15-V to 5.5-V, 400-mA high efficiency buck converter with ultra-low quiescent current | 德州仪器 TI.com.cn

TLV627432
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2.15-V to 5.5-V, 400-mA high efficiency buck converter with ultra-low quiescent current

2.15-V to 5.5-V, 400-mA high efficiency buck converter with ultra-low quiescent current - TLV627432
数据表
 

描述

The TLV627432 is a high efficiency step down converter with ultra low quiescent current of typical 360 nA. The device is optimized to operate with a 2.2-µH inductor and 10µF output capacitor. The device uses DCS-Control™ and operates with a typical switching frequency of 1.2 MHz. In Power Save Mode the device extends the light load efficiency down to a load current range of 10-µA and below. TLV627432 provides an output current of 300 mA. The TLV627432 provides 8 programmable output voltages between 1.2V and 3.3V selectable by three selection pins. The TLV627432 is optimized to provide a low output voltage ripple and low noise using a small output capacitor. Once the input voltage comes close to the output voltage the device enters the No Ripple 100% mode to prevent an increase of output ripple voltage. In this operation mode the device stops switching and turns the high side MOSFET switch on.

特性

  • Input Voltage Range VIN from 2.15 V to 5.5 V
  • Output Current up to 400 mA
  • Very low Operational Quiescent Current
  • Up to 90% Efficiency at 10-µA Output Current
  • Power Save Mode Operation
  • Selectable Output Voltages
    • 8 voltage options between 1.2 V to 3.3 V
  • Output Voltage Discharge
  • Low Output Voltage Ripple
  • Automatic Transition to No Ripple 100% Mode
  • RF Friendly DCS-Control™
  • Total Solution Size <10mm2
  • Small 1.57 mm × 0.88 mm, 8 Ball WCSP Package

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参数

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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) Package Group Rating Type Package size: mm2:W x L (PKG)
TLV627432 立即下单 2.15     5.5     1.2     3.3     0.4     1         0.0003     Enable
Light Load Efficiency
Output Discharge
Synchronous Rectification    
DCS-Control     100     -40 to 85     DSBGA | 8     Catalog       See datasheet (DSBGA)    
TPS62740 立即下单 2.2     5.5     1.8     3.3     0.3     1     2000     2000     0.0003     Enable
Light Load Efficiency
Output Discharge
Synchronous Rectification
Adaptive/Dynamic Voltage Scaling    
Constant on-time (COT)
DCS-Control    
100     -40 to 85     WSON | 12     Catalog     Converter     12WSON: 6 mm2: 3 x 2 (WSON | 12)    
TPS62742 立即下单 3     5.5     1.8     3.3     0.4     1     2000     2000     0.0003     Light Load Efficiency
Output Discharge
Power Good
Synchronous Rectification
Adaptive/Dynamic Voltage Scaling    
Constant on-time (COT)
DCS-Control    
100     -40 to 85     WSON | 12     Catalog     Converter     12WSON: 6 mm2: 3 x 2 (WSON | 12)    
TPS62743 立即下单 2     5.5     1.2     3.3     0.3     1     1200     1200     0.0003     Enable
Light Load Efficiency
Output Discharge
Synchronous Rectification
Adaptive/Dynamic Voltage Scaling    
Constant on-time (COT)
DCS-Control    
100     -40 to 85     DSBGA | 8     Catalog     Converter     See datasheet (DSBGA)