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What is MP1582?

This electronic component, produced by the manufacturer "MPS", performs the same function as "Step-Down Converter".


MP1582 Datasheet PDF - MPS

Part Number MP1582
Description Step-Down Converter
Manufacturers MPS 
Logo MPS Logo 


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Total 16 Pages



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MP1582
2A, 28V, 1.5MHz
Step-Down Converter
The Future of Analog IC Technology
MPS CONFIDENTIAL AND PROPRIETARY INFORMATION – SUPA USE ONLY
DESCRIPTION
FEATURES
The MP1582 is a high frequency step-down
switching regulator with integrated internal
high-side, high voltage power MOSFET. It
Lprovides 2A output with current mode control
for fast loop response and easy compensation.
IAThe wide 4.5V to 28V input range
accommodates a variety of step-down
Tapplications, including those in automotive
systems. A 100µA operational quiescent current
allows use in battery-powered applications.
NHigh power conversion efficiency over a wide
Eload range is achieved by scaling down the
switching frequency at light load condition to
D Ereduce the switching and gate driving losses.
I TThe frequency foldback prevents inductor
current runaway during startup and thermal
Fshutdown provides reliable, fault tolerant
Uoperation.
N BThe MP1582 is available in thermally enhanced
O ISOIC8 package.
Wide 4.5V to 28V Operating Input Range
Programmable Switching Frequency up to
1.5MHz
High-Efficiency Pulse Skipping Mode for
Light Loads
Ceramic Capacitor Stable
Internal Soft-Start
Precision Current Limit without a Current
Sensing Resistor
Up to 95% Efficiency
Available in SOIC8 with Exposed Pad
Packages
APPLICATIONS
Game Machines
Automotive Systems
Industrial Power Systems
Distributed Power Systems
Printer Systems
Battery Powered Systems
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of
Monolithic Power Systems, Inc.
C TRTYPICAL APPLICATION
S SC4
P I100nF
8
DVIN
7 VIN
BST
SW 1
M TEN
2 EN
FB 4
MP1582
NO6 FREQ
COMP 3
GND
D1
C3
220pF
VOUT
3.3V
Efficiency Curve
(fSW=500kHz)
100
90 VIN=12V
80
70
60 VIN=24V
50
40
30
20
DO5
C6
NS
10
0
0.01
0.1 1
OUTPUT CURRENT (A)
10
MP1582 Rev. 1.0
4/17/2009
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2009 MPS. All Rights Reserved.
1
Free Datasheet http://www.datasheet4u.net/

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MP1582 equivalent
MP1582 – 2A, 28V, 1.5MHz STEP-DOWN CONVERTER
MPS CONFIDENTIAL AND PROPRIETARY INFORMATION – SUPA USE ONLY
TYPICAL PERFORMANCE CHARACTERISTICS
VIN = 12V, VOUT=5V, C1 = 10µF, C2 = 22µF, L1 = 10µH, and TA = +25°C, unless otherwise noted.
Oscillating Frequency
vs Rfreq
1500
L1250
A1000
I750
T500
250
N0
E10 100 1000
Efficiency vs.
Load Current
100
90
80
70 VIN=12V VIN=24V
60
50
40
0
fSW=500kHz
VOUT=2.5V
0.5 1.0 1.5
LOAD CURRENT (A)
2.0
Efficiency vs.
Load Current
100 VIN=12V
90
80 VIN=24V
70
60
50
40
0
fSW=500kHz
VOUT=5V
0.5 1.0 1.5
LOAD CURRENT (A)
2.0
D ESteady State
I TIOUT=0.1A, fSW=500kHz
Steady State
IOUT=1A, fSW=500kHz
Steady State
IOUT=2A, fSW=500kHz
F UVOUT
AC Coupled
10mV/div.
VOUT
AC Coupled
10mV/div.
VOUT
AC Coupled
10mV/div.
ON IBVSW
10V/div.
C RIL
MPS NOT DIST1A/div.
1 v.
VSW
10V/div.
IL
1A/div.
2 v.
VSW
10V/div.
IL
2A/div.
2 v.
DO
MP1582 Rev. 1.0
4/17/2009
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2009 MPS. All Rights Reserved.
5
Free Datasheet http://www.datasheet4u.net/


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1. 2A, 28V, 1.5MHz Step-Down Converter

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