MP1482 MPS, MP1482 Datasheet
MP1482
Manufacturer Part Number
MP1482
Description
2a, 18v Synchronous Rectified Step-down Converter
Manufacturer
MPS
Datasheet
1.MP1482.pdf
(13 pages)
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MP1482
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台湾明智类比
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MP1482DN
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MPS
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20 000
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MPS
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MP1482DS
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MPS
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20 000
Part Number:
MP1482DS-C165-IF-Z
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MPS/美国芯源
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The Future of Analog IC Technology
DESCRIPTION
The MP1482 is a monolithic synchronous buck
regulator. The device integrates two 130mΩ
MOSFETs, and provides 2A of continuous load
current over a wide 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, and in shutdown mode the supply
current drops to 1µA.
This device, available in an 8-pin SOIC
package, provides a very compact solution with
minimal external components.
TYPICAL APPLICATION
MP1482 Rev. 1.2
1/13/2010
INPUT
7
8
EN
SS
GND
4
IN
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
2
MP1482
COMP
BS
SW
1
6
FB
3
5
© 2010 MPS. All Rights Reserved.
www.MonolithicPower.com
FEATURES
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APPLICATIONS
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“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of
Monolithic Power Systems, Inc.
2A Output Current
Wide 4.75V to 18V Operating Input Range
Integrated 130mΩ Power MOSFET Switches
Output Adjustable from 0.923V to 15V
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
8–Pin SOIC
Distributed Power Systems
Networking Systems
FPGA, DSP, ASIC Power Supplies
Green Electronics/ Appliances
Notebook Computers
2A, 18V Synchronous Rectified
100
95
90
85
80
75
70
65
60
55
50
0
Step-Down Converter
Efficiency vs
Load Current
0.5
LOAD CURRENT (A)
1.0
V
MP1482
OUT
V
1.5
OUT
= 2.5V
= 3.3V
2.0
2.5
1
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