B330B-G

更新时间： 2024-11-24 12:58:07

品牌	Logo	应用领域
芯源 - MPS		整流二极管肖特基二极管
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11页	251K
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B330B-G 数据手册

MP1591

2A, 32V, 330KHz

Step-Down Converter

The Future of Analog IC Technology

DESCRIPTION

FEATURES

The MP1591 is a high voltage step-down

converter ideal for automotive power adapter

battery chargers. Its wide 6.5V to 32V input

voltage range covers the automotive battery’s

requirements and it achieves 2A continuous

output for quick charge capability.

•

Wide 6.5V to 32V Input Operating Range

34V Absolute Maximum Input

2A Output Current

120mΩ Internal Power MOSFET Switch

Stable with Low ESR Output Ceramic

Capacitors

•

Up to 95% Efficiency

20µA Shutdown Mode

Fixed 330KHz Frequency

Thermal Shutdown

Cycle-by-Cycle Over Current Protection

Output Adjustable From 1.23V to 21V

Under Voltage Lockout

Reference Voltage Output

Available in 8-Pin SOIC Packages

Current mode operation provides fast transient

response and eases loop stabilization. Fault

protection includes cycle-by-cycle current

limiting and thermal shutdown. In shutdown

mode, the converter draws only 20µA of supply

current.

The MP1591 requires a minimum number of

readily available external components to

complete a 2A step-down DC to DC converter

solution.

APPLICATIONS

EVALUATION BOARD REFERENCE

•

Automotive Power Adapters

PDA and Cellular Phone Battery Chargers

Distributed Power Systems

Board Number

Dimensions

EV0020

2.1”X x 1.4”Y x 0.5”Z

Automotive Aftermarket Electronics

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

Monolithic Power Systems, Inc.

TYPICAL APPLICATION

10nF

Efficiency vs

INPUT

6.5V to 32V

Load Current

100

=5V

OUT

=3.3V

OUT

OUTPUT

2.5V

OFF ON

MP1591

OPEN

NOT USED

REF

GND

COMP

4.7nF

=12V

OPEN

0.5

1.5

LOAD CURRENT (A)

MP1591 Rev. 2.3

9/27/2006

www.MonolithicPower.com

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

12 3 4 5 6 7...11

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