TLV61224DCKRG4中文资料德州仪器数据手册PDF规格书

1 Features

1• Up to 94% Efficiency at Typical Operating

Conditions

• 5-μA Quiescent Current

• Operating Input Voltage From 0.7 V to 3 V

• Pass-Through Function During Shutdown

• Output Current of More Than 40 mA From a 1.2-V

Input

• Typical Switch Current Rating 400 mA

• Output Overvoltage Protection

• Overtemperature Protection

• Fixed 3-V Output Voltage

• Small 6-Pin SC-70 Package

2 Applications

• Battery Powered Applications

– 1- to 2-Cell NiMH or Alkaline

– 1-Cell Li-Primary

• Consumer and Portable Medical Products

• Personal Care Products

3 Description

The TLV61224 device provides a power-supply

solution for products powered by either a single-cell

or 2-cell alkaline or NiMH, or 1-cell Li-primary 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 this device

is set internally to a fixed output voltage of 3 V. 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.