1 Features

1• Input Voltage Range: 2.2 V to 5.5 V

• Low Quiescent Current (I Q): 500 nA

• 150-mA, Low-Dropout Regulator

• Low-Dropout at 25°C, 130 mV at 150 mA

• Low-Dropout at 85°C, 175 mV at 150 mA

• 3% Accuracy Over Load, Line, and Temperature

• Stable with a 1.0-μF Ceramic Capacitor

• Thermal Shutdown and Overcurrent Protection

• CMOS Logic Level-Compatible Enable Pin

• DDC (SOT-5) Package

2 Applications

• TI MSP430 Attach Applications

• Wireless Handsets and Smartphones

• MP3 Players

• Battery-Operated Handheld Products

3 Description

The TPS783 family of low-dropout regulators (LDOs)

offers the benefits of ultralow power and miniaturized

packaging.

This LDO family is designed specifically for battery-

powered applications where ultralow quiescent

current is a critical parameter. The TPS783, with

ultralow IQ (500 nA), is ideal for microprocessors,

microcontrollers, and other battery-powered applications.

The absence of pulldown circuitry at the output of the LDO provides the flexibility to use the regulator output

capacitor as a temporary backup power supply (for

example, during battery replacement).

The ultralow power and miniaturized packaging allow

designers to customize power consumption for

specific applications. Consult with your local factory

representative for exact voltage options and ordering information; minimum order quantities may apply.

The TPS783 family is compatible with the TI MSP430

and other similar products. The enable pin (EN) is

compatible with standard CMOS logic. This device

allows for minimal board space because of

miniaturized packaging and a potentially small output

capacitor. The TPS783 family also features thermal

shutdown and current limit to protect the device

during fault conditions. All packages have a specified

operating temperature range of TJ = –40°C to 105°C.