ELMOS Semiconductor AG

Info Sheet

QM-No.: 25IS0102E.00

LOW POWER STEP DOWN CONVERTER

This document contains information on a pre-production product. ELMOS Semiconductor AG reserves the right to change specifications and information herein without notice.

PRELIMINARY INFORMATION - AUG 17, 2012

Features

Applications

General Description

The E522.71/72/73/74/75/76/77/78/79 product family

provides ultra low quiescent current step down DC/DC

converters with integrated power MOSFET.

The PFM (Pulse Frequency Modulation) regulator allows

outstanding fast line- and load response time, stability

and high efficiency over the full load current range. The

integrated idle detection assures an ultra low idle cur-

rent and high efficiency with low load currents down

to <100µA for the completely powered application. A

power-good signal is provided by a high-voltage open-

drain low-side switch.

The E522.7x buck converter accommodates to common

single supply micro controller applications. Low exter-

nal component count and small exposed die pad SOIC

8-EP package allow compact PCB designs.

Product ID

V

OUT

I

OUT

Ambient Temp.

Range

E522.76

1.5 to 40V 350mA -40°C to +105°C

E522.77

5V

1A

-40°C to +105°C

E522.78

3.3V

1A

-40°C to +105°C

E522.79

1.5 to 40V

1A

-40°C to +105°C

Product ID

V

OUT

I

OUT

Ambient Temp.

Range

E522.71

5V

500mA -40°C to +105°C

E522.72

3.3V

500mA -40°C to +105°C

E522.73

5V

350mA -40°C to +105°C

E522.74

3.3V

350mA -40°C to +105°C

E522.75

1.5 to 40V 500mA -40°C to +105°C

Ordering Information

OCP

E522.7X

SENSE

D

R

PGOOD

Only for E522.75/76/79 valid !

OUT

LXT

VIN

AGND

ON

PGND

PG

IN

ON