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BD9524MUV fiches techniques PDF

ROHM Semiconductor - Main Power Supply IC

Numéro de référence BD9524MUV
Description Main Power Supply IC
Fabricant ROHM Semiconductor 
Logo ROHM Semiconductor 





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BD9524MUV fiche technique
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 (2.0V5.5V)
from a wide input voltage range (7V~25V). High efficiency for the switching regulator can be realized by utilizing an external
N-MOSFET power transistor. A new technology called H3RegTM 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
1) 2ch H3RegTM 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=200KHz500KHz)
6) Power good circuit
7) 2ch Linear regulator
8) VQFN032V5050 package
Applications
Laptop PC, Desktop PC, LCD-TV, Digital Components
www.DataSheet.co.kr
Maximum Absolute Ratings (Ta=25)
Parameter
Terminal voltage
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
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
Power dissipation 1
Power dissipation 2
Power dissipation 3
Power dissipation 4
EN1, EN2
DGND, PGND1, PGND2
Pd1
Pd2
Pd3
Pd4
6 *1*2
AGND±0.3 *1*2
0.38 *3
0.88 *4
2.06 *5
4.56 *6
Operating temperature range
Topr
-10 ~ +100
Storage temperature range
Tstg
-55 ~ +150
Junction Temperature
Tjmax
+150
*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 1over 25(when don’t mounted on a heat radiation board )
*4 Reduced by 7.0mW for increase in Ta of 1over 25. (when mounted on a board 70.0mm×70mm×1.6mm Glass-epoxy PCB
which has 1 layer. (Copper foil area : 0mm2))
*5 Reduced by 16.5mW for increase in Ta of 1over 25. (when mounted on a board 70.0mm×70mm×1.6mm Glass-epoxy PCB
which has 4 layers. (1st and 4th copper foil area : 20.2mm2, 2nd and 3rd copper foil area : 5505mm2))
*6 Reduced by 36.5mW for increase in Ta of 1over 25. (when mounted on a board 70.0mm×70mm×1.6mm Glass-epoxy PCB
which has 4 layers. (All copper foil area : 5505mm2))
Unit
V
V
V
V
V
V
V
V
V
W
W
W
W
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
1/20
2010.03 - Rev.C
Datasheet pdf - http://www.DataSheet4U.net/

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