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MOSFETS that provide 2A continuous load

current over a wide operating input voltage of

4.75V to 23V. Current mode control provides

fast transient response and cycle-by-cycle

current limit.

An adjustable soft-start prevents inrush current

at turn-on. Shutdown mode drops the supply

current to 1碌A(chǔ).

This device, available in an 8-pin SOIC

package, provides a very compact system

solution with minimal reliance on external

components.

FEATURES

鈥?/div>

2A Output Current

Wide 4.75V to 23V Operating Input Range

Integrated 130m鈩?Power MOSFET Switches

Output Adjustable from 0.923V to 20V

Up to 93% Efficiency

Programmable Soft-Start

Stable with Low ESR Ceramic Output Capacitors

Fixed 340KHz Frequency

Cycle-by-Cycle Over Current Protection

Input Under Voltage Lockout

Distributed Power Systems

Networking Systems

FPGA, DSP, ASIC Power Supplies

Green Electronics/ Appliances

Notebook Computers

APPLICATIONS

EVALUATION BOARD REFERENCE

Board Number

EV2305DS-00A

Dimensions

2.0鈥漍 x 1.5鈥漎 x 0.5鈥漐

鈥淢PS鈥?and 鈥淭he Future of Analog IC Technology鈥?are Trademarks of Monolithic

Power Systems, Inc.

TYPICAL APPLICATION

INPUT

4.75V to 23V

C5

10nF

100

95

V

OUT

= 3.3V

V

OUT

= 2.5V

90

Efficiency vs

Load Current

EFFICIENCY (%)

2

7

IN

EN

1

BS

3

SW

MP2305

8

SS

GND

4

FB

COMP

6

5

OUTPUT

3.3V

2A

85

80

75

70

65

60

55

50

0

C3

3.3nF

0.5

1.0

1.5

2.0

LOAD CURRENT (A)

2.5

MP2305-TAC01

MP2305-EC01

MP2305 Rev. 1.7

4/17/2006

www.MonolithicPower.com

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

1

制造商
Monolithic Power Systems (MPS)
輸出電壓
0.923 V to 20 V
輸出電流
2 A
輸入電壓
4.75 V to 23 V
開關(guān)頻率
340 KHz
工作溫度范圍
- 40 C to + 85 C
安裝風(fēng)格
SMD/SMT
封裝 / 箱體
SOIC-8E
占空因數(shù)（最大值）
90 %
工廠包裝數(shù)量
100

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