MP1582 Datasheet PDF - MPS
Part Number | MP1582 | |
Description | Step-Down Converter | |
Manufacturers | MPS | |
Logo | ||
There is a preview and MP1582 download ( pdf file ) link at the bottom of this page. Total 16 Pages |
Preview 1 page No Preview Available ! 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 – 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/
Preview 5 Page |
Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for MP1582 electronic component. |
Information | Total 16 Pages | |
Link URL | [ Copy URL to Clipboard ] | |
Product Image and Detail view | 1. 2A, 28V, 1.5MHz Step-Down Converter [ Learn More ] | |
Download | [ MP1582.PDF Datasheet ] |
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