bd9526amuv ROHM Co. Ltd., bd9526amuv Datasheet

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bd9526amuv

Manufacturer Part Number
bd9526amuv
Description
Step Down Dc/dc Converter Controller For Laptop Pc
Manufacturer
ROHM Co. Ltd.
Datasheet
1.BD9526AMUV.pdf (5 pages)
○Absolute Maximum ratings (Ta=25℃)
○Operating supply voltage range (Ta=25℃)
STRUCTURE
TYPE
PRODUCT SERIES
FEATURES
★ This product is not designed for protection against radioactive rays.
Terminal voltage
Power dissipation 1
Power dissipation 2
Power dissipation 3
Power dissipation 4
Operating temperature range
Storage temperature range
Junction Temperature
Terminal voltage
*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
*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
*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
Status of this document
The Japanese version of this document is the official specification.
This translated version is intended only as a reference, to aid in understanding the official version.
If there are any differences between the original and translated versions of this document, the official Japanese language version takes priority.
which has 1 layer. (Copper foil area : 0mm
which has 4 layers. (1
which has 4 layers. (All copper foil area : 5505mm
Parameter
Parameter
st
and 4
th
copper foil area : 20.2mm
BD9526AMUV
■ Built in 2ch H
■ The Light load mode efficiency is improved by SLLM (Simple Light Load Mode)
■ Adjustable Switching Frequency (f=200kHz~500kHz)
■ Built in 3ch Linear Regulator
Silicon Monolithic Integrated Circuit
Step down DC/DC converter controller for Laptop PC
BOOT1-SW1, BOOT2-SW2, HG1-SW1, HG2-SW2
BOOT1-SW1, BOOT2-SW2, HG1-SW1, HG2-SW2
FS1, FS2, REF1, REF2, LG1,LG2,TEST1,TEST2
2
))
EXTVCC, FB1, FB2, Is+1, Is+2, MCTL
2
))
DGND, PGND1, PGND2
Is+1, Is+ 2, FB1, FB2
3
REG DC/DC converter controller
2
VIN1, VIN2, CTL
BOOT1, BOOT2
BOOT1, BOOT2
, 2
REF1, REF2
nd
EN1, EN2
VIN1,VIN2
EN1, EN2
EXTVCC
REV. B
Symbol
and 3
Symbol
Tjmax
MCTL
HG1
HG2
Topr
Tstg
Pd1
Pd2
Pd3
Pd4
CTL
rd
copper foil area : 5505mm
2
))
MIN.
-0.3
-0.3
-0.3
-0.3
4.5
4.5
1.9
INTVCC+0.3 *
BOOT1+0.3 *
BOOT2+0.3 *
AGND±0.3 *
7
1
-10～+100
-55～+150
0.88 *
2.06 *
4.56 *
30 *
35 *
0.38*
Limits
7 *
7 *
6 *
+150
1
1
1
1
1
*
*
*
INTVCC+0.3
*
*
2
2
2
3
2
2
4
5
6
MAX.
1
1
1
2.75
1
*
5.5
5.5
5.5
5.6
*
*
25
25
30
*
2
2
2
2
Unit
Unit
W
W
W
W
℃
℃
℃
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
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bd9526amuv Summary of contents

Page 1

... STRUCTURE Silicon Monolithic Integrated Circuit TYPE Step down DC/DC converter controller for Laptop PC BD9526AMUV PRODUCT SERIES ■ Built in 2ch H FEATURES ■ The Light load mode efficiency is improved by SLLM (Simple Light Load Mode) ■ Adjustable Switching Frequency (f=200kHz~500kHz) ■ Built in 3ch Linear Regulator ○ ...

Page 2

Parameter VIN1 Bias Current VIN2 Bias Current 1 VIN2 Bias Current 2 VIN1 Shutdown Current VIN2 Shutdown Current CTL Low Voltage CTL High Voltage CTL Bias Current EN Low Voltage EN High Voltage EN Bias ...

Page 3

Dimensions 5.0±0 0.08 S 3.4±0.1 C0 0.25 0.75 0.5 ○Block Diagram, Application Circuit INT VCC CL2 Short through SCP2 Protection Circuit ...

Page 4

Input CTL EN1 Low Low Low Low Low High Low High High Low High Low High High High High ○NOTE FOR USE (1) Absolute maximum rating The device may be destroyed when applied voltage or operating temperature ...

Page 5

Appendix No copying or reproduction of this document, in part or in whole, is permitted without the consent of ROHM CO.,LTD. The content specified herein is subject to change for improvement without notice. The content specified herein is for the ...

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