REV. 0

Information furnished by Analog Devices is believed to be accurate and

reliable. However, no responsibility is assumed by Analog Devices for its

use, nor for any infringements of patents or other rights of third parties

which may result from its use. No license is granted by implication or

otherwise under any patent or patent rights of Analog Devices.

a

ADP3336

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781/329-4700

World Wide Web Site: http://www.analog.com

Fax: 781/326-8703

© Analog Devices, Inc., 2000

FEATURES

High Accuracy Over Line and Load:

0.9% @ 25 C,

1.8% Over Temperature

Ultralow Dropout Voltage: 200 mV (Typ) @ 500 mA

F for Stability

anyCAP = Stable with Any Type of Capacitor

(Including MLCC)

Current and Thermal Limiting

Low Noise

Low Shutdown Current: < 1.0

A

2.6 V to 12 V Supply Range

1.5 V to 10 V Output Range

–40 C to +85 C Ambient Temperature Range

Ultrasmall Thermally-Enhanced 8-Lead MSOP Package

APPLICATIONS

PCMCIA Card

Cellular Phones

Camcorders, Cameras

Networking Systems, DSL/Cable Modems

Cable Set-Top Box

MP3/CD Players

DSP Supply

GENERAL DESCRIPTION

The ADP3336 is a member of the ADP333x family of precision

low dropout anyCAP voltage regulators. The ADP3336 operates

with an input voltage range of 2.6 V to 12 V and delivers a

continuous load current up to 500 mA. The ADP3336 stands

out from conventional LDOs with the lowest thermal resistance

of any MSOP-8 package and an enhanced process that enables

it to offer performance advantages beyond its competition.

Its patented design requires only a 1.0

µF output capacitor for

stability. This device is insensitive to output capacitor Equiva-

lent Series Resistance (ESR), and is stable with any good

quality capacitor, including ceramic (MLCC) types for space-

restricted applications. The ADP3336 achieves exceptional

accuracy of

±0.9% at room temperature and ±1.8% over tem-

perature, line, and load. The dropout voltage of the ADP3336 is

only 200 mV (typical) at 500 mA. This device also includes a

safety current limit, thermal overload protection and a shutdown

feature. In shutdown mode, the ground current is reduced to

less than 1

µA. The ADP3336 has ultralow quiescent current

80

µA (typical) in light load situations.

1 F

ADP3336

OUT

IN

GND

FB

ON

OFF

IN

OUT

OUT

R1

R2

SD

1 F

Figure 1. Typical Application Circuit

anyCAP is a registered trademark of Analog Devices Inc.

FUNCTIONAL BLOCK DIAGRAM

THERMAL

PROTECTION

CC

IN

ADP3336

OUT

GND

Q1

BANDGAP

REF

DRIVER

FB

SD