TPS7A3701

GND

EN

FB

IN

OUT

V

IN

V

OUT

Optional

1.0 F

m

OFF

ON

TPS7A37xx

GND

EN

IN

OUT

V

IN

V

OUT

ON

OFF

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TPS7A37

SBVS220B – MARCH 2013 – REVISED AUGUST 2015

TPS7A37 1% High-Accuracy, 1-A, Low-Dropout Regulator With Reverse Current

Protection

1 Features

3 Description

The TPS7A37 family of linear low-dropout (LDO)

1

•

Stable with 1-

μF or Larger Ceramic Output

voltage regulators uses an NMOS pass element in a

Capacitor

voltage-follower

configuration.

This

topology

is

•

Input Voltage Range: 2.2 V to 5.5 V

relatively insensitive to output capacitor value and

•

Ultralow Dropout Voltage:

ESR, allowing a wide variety of load configurations.

Load transient response is excellent, even with a

–

200-mV Maximum at 1 A

small 1-

μF ceramic output capacitor. The NMOS

•

Excellent Load Transient Response—Even With

topology also allows very low dropout.

Only 1-

μF Output Capacitor

The TPS7A37 family uses an advanced BiCMOS

•

NMOS Topology Delivers Low Reverse Leakage

process to yield high precision while delivering very

Current

low dropout voltages and low ground pin current.

•

Excellent Accuracy:

Current consumption, when not enabled, is under 20

nA and ideal for portable applications. These devices

–

0.23% Nominal Accuracy

are protected by thermal shutdown and foldback

–

1% Overall Accuracy Over Line, Over Load,

current limit.

and Over Temperature

•

Device Information(1)

•

Thermal Shutdown and Current Limit for Fault

PART NUMBER

PACKAGE

BODY SIZE (NOM)

Protection

TPS7A37

WSON (6)

2.00 mm × 2.00 mm

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

2 Applications

the end of the data sheet.

•

Point of Load Regulation for DSPs, FPGAs,

ASICs, and Microprocessors

•

Post-Regulation for Switching Supplies

•

Portable and Battery-Powered Equipment

SPACE

Typical Application Circuit (Adjustable Version)

Typical Application Circuit (Fixed Version)

1

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.