1 Features

1• 4-V to 40-V Wide VI Input Voltage Range With up

to 45-V Transient

• Maximum Output Current: 150 mA

• Low Quiescent Current (IQ):

– 15 μA Typical at Light Loads

– 25 μA Maximum Under Full Temperature

• 450-mV Typical Low Dropout Voltage at 100 mA

Load Current

• 10-mV Line Regulation Maximum

• 20-mV Load Regulation Maximum

• Stable With Low-ESR Ceramic Output Capacitor

(2.2 μF to 100 μF)

• Fixed 3.3-V and 5-V Output Voltage Options

• Integrated Fault Protection:

– Thermal Shutdown

– Short-Circuit Protection

• Packages:

– 5-Pin SOT-23 Package

– 4-Pin SOT-223 Package

2 Applications

• E-meters, Water Meters and Gas Meters

• Appliances and White Goods

• Fire Alarm, Smoke Detector

• Medical, Health, and Fitness Applications

3 Description

The TPS7B69xx device is a low-dropout linear

regulator that operates at up to 40-V VI. With only

15-μA (typical) quiescent current at light load, the

device is applicable for standby microcontrol-unit

systems, especially for always-on applications like emeters,

fire alarms, and smoke detectors.

The devices have integrated short-circuit and

overcurrent protection. The TPS7B69xx device

operates over a –40°C to 105°C temperature range.