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BD9524MUV

Description
Main Power Supply IC for Note PC (Linear Regulator Integrated)
CategoryPower/power management    The power supply circuit   
File Size626KB,21 Pages
ManufacturerROHM Semiconductor
Websitehttps://www.rohm.com/
Environmental Compliance
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BD9524MUV Overview

Main Power Supply IC for Note PC (Linear Regulator Integrated)

BD9524MUV Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
MakerROHM Semiconductor
Parts packaging codeQFN
package instructionHVQCCN, LCC32,.2SQ,20
Contacts32
Reach Compliance Codecompli
ECCN codeEAR99
Analog Integrated Circuits - Other TypesSWITCHING CONTROLLER
control modeVOLTAGE-MODE
Maximum input voltage25 V
Minimum input voltage7 V
Nominal input voltage12 V
JESD-30 codeS-XQCC-N32
JESD-609 codee2
length5 mm
Number of functions1
Number of terminals32
Maximum operating temperature100 °C
Minimum operating temperature-10 °C
Nominal output voltage5 V
Package body materialUNSPECIFIED
encapsulated codeHVQCCN
Encapsulate equivalent codeLCC32,.2SQ,20
Package shapeSQUARE
Package formCHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)260
Certification statusNot Qualified
Maximum seat height1 mm
surface mountYES
Switch configurationSINGLE
Maximum switching frequency500 kHz
Temperature levelOTHER
Terminal surfaceTin/Copper (Sn/Cu)
Terminal formNO LEAD
Terminal pitch0.5 mm
Terminal locationQUAD
Maximum time at peak reflow temperatureNOT SPECIFIED
width5 mm
Hi-performance Regulator IC Series for PCs
Main Power Supply IC
for Note PC (Linear Regulator Integrated)
BD9524MUV
No.10030ECT06
●Description
BD9524MUV is a switching regulator controller with high output current which can achieve low output voltage (2.0V½5.5V)
from a wide input voltage range (7V~25V). High efficiency for the switching regulator can be realized by utilizing an external
3
TM
N-MOSFET power transistor. A new technology called H Reg is a Rohm proprietary control method to realize ultra high
transient response against load change. SLLM (Simple Light Load Mode) technology is also integrated to improve efficiency
in light load mode, providing high efficiency over a wide load range. For protection and ease of use, the soft start function,
variable frequency function, short circuit protection function with timer latch, over voltage protection with timer latch, and
Power good function are all built in. This switching regulator is specially designed for Main Power Supply.
●Features
3
TM
1) 2ch H Reg Switching Regulator Controller
2) Adjustable Simple Light Load Mode (SLLM), Quiet Light Load Mode (QLLM) and Forced continuous Mode
3) Thermal Shut Down (TSD), Under Voltage Lock Out (UVLO), Over Current Protection (OCP),
Over Voltage Protection (OVP), Short circuit protection with timer-latch (SCP)
4) Soft start function to minimize rush current during startup
5) Switching Frequency Variable (f=200KHz½500KHz)
6) Power good circuit
7) 2ch Linear regulator
8) VQFN032V5050 package
●Applications
Laptop PC, Desktop PC, LCD-TV, Digital Components
●Maximum
Absolute Ratings (Ta=25℃)
Parameter
Terminal voltage
Power dissipation 1
Power dissipation 2
Power dissipation 3
Power dissipation 4
Operating temperature range
Storage temperature range
Junction Temperature
Symbol
VIN, CTL
EXTVCC, PGOOD1, PGOOD2FB1, FB2, Is+1, Is+2, MCTL
FS1, FS2, REF1, REF2, SS1, SS2, LG1, LG2
BOOT1, BOOT2
BOOT1-SW1, BOOT2-SW2, HG1-SW1, HG2-SW2
HG1
HG2
EN1, EN2
DGND, PGND1, PGND2
Pd1
Pd2
Pd3
Pd4
Topr
Tstg
Tjmax
Limits
30
*1*2
7
*1*2
REG1+0.3
*1*2
35
*1*2
7
*1*2
BOOT1+0.3
*1*2
BOOT2+0.3
*1*2
6 *1*2
AGND±0.3
*1*2
0.38
*3
0.88
*4
2.06
*5
4.56
*6
-10 ~ +100
-55 ~ +150
+150
Unit
V
V
V
V
V
V
V
V
V
W
W
W
W
*1 Do not however exceed Pd.
*2 Instantaneous surge voltage, back electromotive force and voltage under less than 10% duty cycle.
*3 Reduced by 3.0mW for each increase in Ta of 1℃ over 25℃ (when don’t mounted on a heat radiation board )
*4 Reduced by 7.0mW for increase in Ta of 1℃ over 25℃. (when mounted on a board 70.0mm×70mm×1.6mm Glass-epoxy PCB
which has 1 layer. (Copper foil area : 0mm
2
))
*5 Reduced by 16.5mW for increase in Ta of 1℃ over 25℃. (when mounted on a board 70.0mm×70mm×1.6mm Glass-epoxy PCB
which has 4 layers. (1
st
and 4
th
copper foil area : 20.2mm
2
, 2
nd
and 3
rd
copper foil area : 5505mm
2
))
*6 Reduced by 36.5mW for increase in Ta of 1℃ over 25℃. (when mounted on a board 70.0mm×70mm×1.6mm Glass-epoxy PCB
which has 4 layers. (All copper foil area : 5505mm
2
))
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
1/20
2010.03 - Rev.C

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