EUP3421 datasheet(1/1 Pages) EUTECH

部件名	EUP3421

功能描述	2A, Synchronous Step-Down Converter

PDF	1 Pages

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制造商	EUTECH [Eutech Microelectronics Inc]

网页	http://www.eutechmicro.com

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EUP3421

DS3421

Ver1.0

Jun. 2011

1

2A, Synchronous Step-Down Converter

DESCRIPTION

The EUP3421 is a 1 MHz fixed frequency synchronous,

current-mode, step-down dc-dc converter capable of

providing up to 2A output current. The EUP3421

operates from an input range of 2.7V to 5.5V and

provides a regulated output voltage from 0.8V to 5V.

The internal synchronous power switch improves

efficiency and eliminates the need for an external

Schottky diode. Forced PWM operation provides very

low

output

ripple

voltage

for

noise

sensitive

applications.

The EUP3421 features short circuit and thermal

protection

circuits

to

improve

system reliability.

Externally adjustable soft-start avoids input inrush

current during startup. The EUP3421 is available in

SOP-8 package.

Typical Application Circuit

FEATURES

2.7V to 5.5V Input Voltage Range

High Efficiency up to 96%

2A Available Load Current

100/60m

Integrated PFET/NFET Switches

1MHz Switching Frequency

100% Duty Cycle Low Dropout Operation

Short Circuit and Thermal Protection

Integrated UVLO

Excellent Line and Load Transient Response

Available in SOP-8 Package

RoHS Compliant and 100% Lead(Pb)-Free

Halogen-Free

APPLICATIONS

High Performance DSPs, FPGAs, ASICs and

Microprocessors

Base Station, Telecom, and Networking

Equipment Power Supplies

ePC and NetPCs

Figure1. Typical Application Circuit

类似零件编号 - EUP3421

制造商	部件名	数据表	功能描述
Eutech Microelectronics...	EUP3420	513Kb / 11P	2A/1.5MHz, Synchronous Step-Down Converter with Soft Start
	EUP3420JIR1	513Kb / 11P	2A/1.5MHz, Synchronous Step-Down Converter with Soft Start
	EUP3420MIR1	513Kb / 11P	2A/1.5MHz, Synchronous Step-Down Converter with Soft Start
	EUP3423	89Kb / 1P	3.2A, Synchronous Step-Down Converter
	EUP3425	250Kb / 2P	5A, 1MHz Synchronous Step-Down Converter

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类似说明 - EUP3421

制造商	部件名	数据表	功能描述
Richtek Technology Corp...	RT2652	205Kb / 12P	2A, 1.2MHz Synchronous Step-Down Converter
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SHANGHAI BELLING CO., L...	BL9370B	555Kb / 10P	2A, 20V Synchronous Step-Down Converter
SHANGHAI BELLING CO., L...	BL9382C	595Kb / 11P	2A, 24V Synchronous Step-Down Converter
Monolithic Power System...	EV4420-J-00A	891Kb / 8P	2A, 36V, Synchronous Step Down Converter
Shenzhen Huazhimei Semi...	HM3420S	859Kb / 10P	1.5MHz, 2A Synchronous Step-Down Converter
Unisonic Technologies	UD05201	366Kb / 5P	1.2MHZ, 2A SYNCHRONOUS STEP-DOWN CONVERTER