TPS61097A-33DBVR集成电路（IC）的稳压器-DC-DC开关稳压器规格书PDF中文资料

TPS61097A-33DBVR属于集成电路（IC）的稳压器-DC-DC开关稳压器。由德州仪器制造生产的TPS61097A-33DBVR稳压器 - DC-DC 开关稳压器DC-DC 开关稳压器 PMIC（电源管理集成电路）产品族中的产品是元器件级设备，用于需要稳定 DC 输入电压和/或将其转换为不同幅度的输出电压的应用。这些器件与称为“控制器”PMIC 的类似产品的区别在于集成了主开关元件，设备提供的电力会通过该元件。

1 Features

1• Up to 93% Efficiency at Typical Operating

Conditions

• Connection from Battery to Load via Bypass

Switch in Shutdown Mode

• Typical Shutdown Current Less Than 5 nA

• Typical Quiescent Current Less Than 5 μA

• Operating Input Voltage Range

From 0.9 V to 5.5 V

• Power-Save Mode for Improved Efficiency at Low

Output Power

• Overtemperature Protection

• Small 2.8-mm x 2.9-mm 5-Pin SOT-23 Package

2 Applications

• MSP430 Applications

• All Single-Cell, Two-Cell, and Three-Cell Alkaline,

NiCd, NiMH, or Single-Cell Li-Battery Powered

Products

• Personal Medical Products

• Fuel Cell and Solar Cell Powered Products

• PDAs

• Mobile Applications

• White LEDs

3 Description

The TPS61097A-33 provides 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. They can also be used in

fuel cell or solar cell powered devices where the

capability of handling low input voltages is essential.

Possible output currents depend on the input-tooutput

voltage ratio. The devices provide output

currents up to 100 mA at a 3.3-V output while using a

single-cell Li-Ion or Li-Polymer battery. The boost

converter is based on a current-mode controller using

synchronous rectification to obtain maximum

efficiency. The maximum average input current is

limited to a value of 400 mA. The converter can be

disabled to minimize battery drain. During shutdown,

the battery is connected to the load to enable battery

backup of critical functions on the load. The device is

packaged in a 5-pin SOT-23 package (DBV)

measuring 2.8 mm × 2.9 mm.