ADP3334 datasheet(1/8 Pages) AD

tên linh kiện	ADP3334

Giải thích chi tiết về linh kiện	High Accuracy Low IQ, 500 mA anyCAP Adjustable Low Dropout Regulator

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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 that

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

under any patent or patent rights of Analog Devices.

a

ADP3334

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

Tel: 781/329-4700

www.analog.com

Fax: 781/326-8703

High Accuracy Low IQ, 500 mA

anyCAP® Adjustable Low Dropout Regulator

FEATURES

High Accuracy Over Line and Load:

0.9% @ 25 C,

1.8% over Temperature

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

Requires Only CO = 1.0

F for Stability

anyCAP = Stable with Any Type of Capacitor

(Including MLCC)

Current and Thermal Limiting

Low Noise

Low Shutdown Current: < 1.0

A (Typ)

2.6 V to 11 V Supply Range

1.5 V to 10 V Output Range

–40 C to +85 C Ambient Temperature Range

Thermally-Enhanced 8-Lead SO Package

APPLICATIONS

Cellular Phones

Camcorders, Cameras

Networking Systems, DSL/Cable Modems

Cable Set-Top Boxes

DSP Supplies

Personal Digital Assistants

GENERAL DESCRIPTION

The ADP3334 is a member of the ADP333x family of precision

low dropout anyCAP voltage regulators. The ADP3334 operates

with an input voltage range of 2.6 V to 11 V and delivers a

continuous load current up to 500 mA. The novel anyCAP

architecture requires only a very small 1

µF output capacitor for

stability, and the LDO is insensitive to the capacitor’s equiva-

lent series resistance (ESR). This makes ADP3334 stable with any

capacitor, including ceramic (MLCC) types for space restricted

applications.

The ADP3334 achieves exceptional accuracy of

±0.9% at room

temperature and

±1.8% over temperature, line, and load. The

dropout voltage of the ADP3334 is only 200 mV (typical) at

500 mA. This device also includes a safety current limit, ther-

mal overload protection and a shutdown feature. In shutdown

mode, the ground current is reduced to less than 1

µA. The

ADP3334 has low quiescent current 90

µA (typical) in light

load situations.

FUNCTIONAL BLOCK DIAGRAM

THERMAL

PROTECTION

CC

IN

ADP3334

OUT

GND

Q1

BANDGAP

REF

DRIVER

gm

FB

SD

anyCAP is a registered trademark of Analog Devices, Inc.

CNR

ADP3334

OUT

VIN

IN

GND

VOUT

ON

OFF

IN

OUT

R1

R2

SD

CIN

1 F

FB

COUT

1 F

Figure 1. Typical Application Circuit

The ADP3334 also features ADI’s thermally enhanced Thermal

Coastline package. This allows 1 W of power dissipation without

any external heat sinking.

Số phần tương tự - ADP3334

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Analog Devices	ADP3334	471Kb / 5P	Broadband Low Error Vector Magnitude (EVM) Direct Conversion Transmitter REV. 0
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	ADP3334	238Kb / 4P	Broadband Low Error Vector Magnitude Direct Conversion Transmitter Using LO Divide-by-2 Modulator REV. C
	ADP3334	155Kb / 4P	Broadband, Low Error Vector Magnitude (EVM) Direct Conversion Transmitter Using LO Divide-by-2 Modulator REV. 0
	ADP3334	380Kb / 12P	High Accuracy, Low IQ, anyCAP Adjustable Low Dropout Regulator REV. B

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