GND

10 µF

4.7 µF

V

bat

V

reg

V

O

V

I

IN

OUT

Copyright © 2016, Texas Instruments Incorporated

TPS7B69xx

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An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

TPS7B6933, TPS7B6950

SLVSDI2 – APRIL 2016

TPS7B69xx 150-mA, 40-V Ultralow-Quiescent-Current LDO

1

1 Features

1

•

to 45-V Transient

•

Maximum Output Current: 150 mA

•

–

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

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

device is applicable for standby microcontrol-unit

systems, especially for always-on applications like e-

meters, 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.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

TPS7B6933

TPS7B6950

SOT-223 (4)

6.50 mm × 3.50 mm

SOT-23 (5)

2.90 mm × 1.60 mm

(1) For all available packages, see the orderable addendum at

the end of the datasheet.

Typical Application Schematic