EV2104DJ-00A 데이터 시트보기 (PDF) - Monolithic Power Systems

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EV2104DJ-00A

1.7MHz, 600mA Synchronous Step-Down Converter

Monolithic Power Systems 

TM

The Future of Analog IC Technology TM

MP2104

1.7MHz, 600mA Synchronous

Step-Down Converter

DESCRIPTION

The MP2104 is a 1.7MHz constant frequency,

current mode, PWM step-down converter. The

device integrates a main switch and a

synchronous rectifier for high efficiency without an

external Schottky diode. It is ideal for powering

portable equipment that runs from a single cell

Lithium-Ion (Li+) battery. The MP2104 can supply

600mA of load current from a 2.5V to 6V input

voltage. The output voltage for the MP2104DJ

can be regulated as low as 0.6V, while the output

voltages of the MP2104DJ-1.5 and

MP2104DJ-1.8 are fixed at 1.5V and 1.8V,

respectively. The MP2104 can also run at 100%

duty cycle for low dropout applications.

The MP2104 is available in a low profile (1mm)

5-pin, TSOT package.

ORDERING INFORMATION

Part Number

Output Voltage

MP2104DJ-1.5

MP2104DJ-1.8

MP2104DJ

VOUT = 1.5V

VOUT = 1.8V

VOUT = 0.6V to 6V

EVALUATION BOARD REFERENCE

Board Number

EV2104DJ-00A

Dimensions

2.0”X x 2.0”Y x 0.5”Z

FEATURES

• High Efficiency: Up to 95%

• 1.7MHz Constant Switching Frequency

• 600mA Available Load Current

• 2.5V to 6V Input Voltage Range

• Output Voltage as Low as 0.6V

• 100% Duty Cycle in Dropout

• Current Mode Control

• Short Circuit Protection

• Thermal Fault Protection

• <0.1µA Shutdown Current

• 1.5V and 1.8V Fixed Output Versions

• Space Saving 5-Pin TSOT23 Package

APPLICATIONS

• Cellular and Smart Phones

• Microprocessors and DSP Core Supplies

• PDAs

• MP3 Players

• Digital Still and Video Cameras

• Portable Instruments

“MPS” and “The Future of Analog IC Technology” are Trademarks of Monolithic

Power Systems, Inc.

TYPICAL APPLICATION

INPUT

2.5V - 6V

OFF ON

4

IN

SW 3

MP2104DJ-1.8

1 EN

5

OUT

GND

2

OUTPUT

1.8V

600mA

MP2104_TAC_S01

Efficiency vs

Load Current

100

90 VIN = 3.3V

80

70

VIN = 4.2V

60

50

40

30

20

10

0

10

100

1000

LOAD CURRENT (mA)

MP2104-EC01

MP2104 Rev. 1.3

www.MonolithicPower.com

1

10/4/2005

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

© 2005 MPS. All Rights Reserved.

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