TPS61222 5V 输出电压、微低输入电压升压转换器 | 德州仪器 TI.com.cn

TPS61222 (正在供货) 5V 输出电压、微低输入电压升压转换器

 

描述

The TPS6122x family devices provide a power-supply solution for products powered by either a single-cell, two-cell, or three-cell alkaline, NiCd or NiMH, or one-cell Li-Ion or Li-polymer battery. Possible output currents depend on the input-to-output voltage ratio. The boost converter is based on a hysteretic controller topology using synchronous rectification to obtain maximum efficiency at minimal quiescent currents. The output voltage of the adjustable version can be programmed by an external resistor divider, or is set internally to a fixed output voltage. The converter can be switched off by a featured enable pin. While being switched off, battery drain is minimized. The device is offered in a 6-pin SC-70 package (DCK) measuring 2 mm × 2 mm to enable small circuit layout size.

特性

  • Up to 95% Efficiency at Typical Operating
    Conditions
  • 5.5 µA Quiescent Current
  • Startup Into Load at 0.7 V Input Voltage
  • Operating Input Voltage from 0.7 V to 5.5 V
  • Pass-Through Function during Shutdown
  • Minimum Switching Current 200 mA
  • Protections:
    • Output Overvoltage
    • Overtemperature
    • Input Undervoltage Lockout
  • Adjustable Output Voltage from 1.8 V to 6 V
  • Fixed Output Voltage Versions
  • Small 6-pin SC-70 Package

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WEBENCH® Designer TPS61222

  最小   最大 范围
输入电压  V 0.7 to 5.0V
输出电压  V 5 to 5V
输出电流  A ≤ 0.2A
环境温度  °C -40 to 85°C

参数

与其它产品相比 升压转换器(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) 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
TPS61222 立即下单 0.7     5.5     5     5     0.4     1     500     2000     0.005     Synchronous Rectification     90     -40 to 85     Converter     Catalog     SC70 | 6    
TLV61220 立即下单 0.7     5.5     1.8     5.5     0.4     1     500     2000     0.005     Synchronous Rectification     90     -40 to 85     Converter     Catalog     SOT-23 | 6    
TLV61224 立即下单 0.7     3     3     3     0.4     1     500     2000     0.005     Synchronous Rectification     90     -40 to 85     Converter     Catalog     SC70 | 6    
TLV61225 立即下单 0.7     3.3     3.3     3.3     0.4     1     500     2000     0.005     Synchronous Rectification     90     -40 to 85     Converter     Catalog     SC70 | 6    
TPS61097A-33 立即下单 0.9     5.5     3.3     3.3     0.4     1     200     2000     0.007     Bypass Mode     100     -40 to 85     Converter     Catalog     SOT-23 | 5    
TPS61099 立即下单 0.7     5.5     1.8     5.5     1     1     1000     3000     0.001
0.0008    
Synchronous Rectification     90     -40 to 125
-40 to 85