ACT2103 datasheet(1/16 Pages) ACTIVE-SEMI

部件名	ACT2103

功能描述	18V/3A Step-Down DC/DC Converter

PDF	16 Pages

Scroll/Zoom	100%

制造商	ACTIVE-SEMI [Active-Semi, Inc]

网页	http://www.active-semi.com

标志

1 / 16 page

Innovative PowerTM

- 1 -

www.active-semi.com

FEATURES

• 3A Output Current

• Wide 4.5V to 18V Operating Input Range

• Synchronous Buck Topology

• Integrated 85mΩ Power MOSFET Switches

• Output Adjustable from 0.923V to 12V

• Up to 96% Efficiency

• Stable with Low ESR Ceramic Output

Capacitors

• Internal Soft Start

• 3mA Low Standby Input Current

• High Light Load Efficiency

• Cycle-by-Cycle Over Current Limit

• Input Under Voltage Lockout

• Hiccup Protection at Short Circuit and Over

Current

• Frequency Fold Back Protection

• Low Power Dissipation at Over Current and

Short Circuit

APPLICATIONS

• LCD-TV

• Set-top Box

• Distributed Power Systems

• Networking Systems

GENERAL DESCRIPTION

ACT2103 is a monolithic synchronous buck

regulator.

The

device

integrates

two

85mΩ

MOSFETs, and provides 3A of continuous load

current over a wide input voltage of 4.5V to 18V.

Current mode control provides fast transient

response and cycle-by-cycle current limit. Hiccup at

short circuit reduces IC temperatures.

An internal soft-start prevents inrush current at turn-

on, and in shutdown mode the supply current drops

to 10μA. Pulse-skipping mode at light load reduces

standby power down to 3mA.

This device, available in an 8-pin SOP-8EP

package, provides a very compact solution with

minimal external components.

ACT2103

18V/3A Step-Down DC/DC Converter

Rev 2, 23-May-12

®

Load Current (mA)

10

100

1000

10000

Efficiency vs. Load Current

VOUT = 5V

VIN = 7V

VIN = 12V

VIN = 18V

80

75

70

65

60

55

85

90

95

100

类似零件编号 - ACT2103

制造商	部件名	数据表	功能描述
Active-Semi, Inc	ACT2103	732Kb / 17P	18V/3A Step-Down DC/DC Converter Rev 2, 23-May-12
	ACT2103YH-T	732Kb / 17P	18V/3A Step-Down DC/DC Converter Rev 2, 23-May-12
	ACT2103	732Kb / 17P	18V/3A Step-Down DC/DC Converter Rev 2, 23-May-12

More results

类似说明 - ACT2103

制造商	部件名	数据表	功能描述
Active-Semi, Inc	ACT2102	707Kb / 16P	18V/2A Step-Down DC/DC Converter Rev 2, 23-May-12
	ACT2113	690Kb / 16P	18V/3A Step-Down DC/DC Converter Rev 3, 23-May-12
	ACT4060B	705Kb / 16P	18V/2A Step-Down DC/DC Converter Rev 1, 23-May-12
	ACT2103	732Kb / 17P	18V/3A Step-Down DC/DC Converter Rev 2, 23-May-12
	ACT2113	690Kb / 17P	18V/3A Step-Down DC/DC Converter Rev 3, 23-May-12
E-CMOS Corporation	EC3293	821Kb / 11P	3A, 18V, Synchronous Step-down DC/DC Converter
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AiT Semiconductor Inc.	A7230	1Mb / 17P	DC-DC CONVERTER BUCK (STEP-DOWN) 3A, 18V SYNCHRONOUS RECTIFIED REV1.1
Fitipower Integrated Te...	FR9884	862Kb / 13P	18V, 3A, 340KHz Synchronous Step-Down DC/DC Converter