AP2953AS8PR datasheet(1/9 Pages) CHIPOWN

Part #	AP2953AS8PR

Description	3A, 18V Synchronous Rectified Step-Down Converter

PDF	9 Pages

Scroll/Zoom	100%

Manufacturer	CHIPOWN [Wuxi Chipown Micro-electronics limited]

Direct Link	https://www.chipown.com.cn/en/index.html

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1 / 9 page

AP2953A

Chipown

8/F, ChuangYuan Building

No.21-1 Changjiang Road, Wuxi New Destrict Tel: +86(510)8521-7718

http://www.chipown.com.cn

V2.0

1 / 9

3A, 18V Synchronous Rectified

Step-Down Converter

Description

The AP2953A is a monolithic synchronous buck regulator.

The device integrates 100mΩ MOSFETS that provide 3A

continuous load current over a wide operating input voltage

of 4.75V to 18V. Current mode control provides fast transient

response and cycle-by-cycle current limit.

An adjustable soft-start prevents inrush current at turn-on. In

shutdown mode, the supply current drops below 1μA.

This device, available in an 8-pin SOP package, provides a

very compact system solution with minimal reliance on

external components.

Applications



Distributed Power Systems



Networking Systems



FPGA, DSP, ASIC Power Supplies



Green Electronics/ Appliances



Notebook Computers

Features



3A Output Current



Wide 4.75V to 18V Operating Input Range



Integrated 100mΩ Power MOSFET Switches



Output Adjustable from 0.925V to 15V



Up to 95% Efficiency



Programmable Soft-Start



Stable with Low ESR Ceramic Output Capacitors



Fixed 370KHz Frequency



Cycle-by-Cycle Over Current Protection



Input Under Voltage Lockout



Thermally Enhanced 8-Pin SOP Package

Package

SOP8-PP

5

6

7

8

4

3

2

Typical Application Circuit

Figure 1. Typical Application Circuit

Vout=5V

0

10

20

30

40

50

60

70

80

90

100

0

500

1000

1500

2000

2500

3000

3500

Load(mA)

Vin=12V

Vin=18V

Vin=9V

Figure 2. Typical Efficiency Curve

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AP2953AS8PR Datasheet(PDF) 1 Page - Wuxi Chipown Micro-electronics limited

AP2953AS8PR Datasheet(HTML) 1 Page - Wuxi Chipown Micro-electronics limited

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