基于TPS783的500nA IQ、150mA、超低静态电流低压降线性稳压器

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　　1 Features

　　Input Voltage Range: 2.2 V to 5.5 V

　　Low Quiescent Current (IQ): 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.

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