Datasheet > BD9526AMUV

BD9526AMUV

更新时间： 2024-01-04 15:05:10

品牌	Logo	应用领域
罗姆 - ROHM		/
页数	文件大小	规格书
5页	124K
描述
Silicon Monolithic Integrated Circuit

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BD9526AMUV 数据手册

1/4

STRUCTURE

TYPE

Silicon Monolithic Integrated Circuit

Step down DC/DC converter controller for Laptop PC

PRODUCT SERIES

FEATURES

BD9526AMUV

■ Built in 2ch H³REG DC/DC converter controller

■ The Light load mode efficiency is improved by SLLM (Simple Light Load Mode)

■ Adjustable Switching Frequency (f=200kHz~500kHz)

■ Built in 3ch Linear Regulator

○Absolute Maximum ratings (Ta=25℃)

Parameter

Symbol

VIN1, VIN2, CTL

Limits

30 *¹*²

Unit

EXTVCC, FB1, FB2, Is+1, Is+2, MCTL

FS1, FS2, REF1, REF2, LG1,LG2,TEST1,TEST2

BOOT1, BOOT2

7 *¹*²

INTVCC+0.3 *¹*²

35 *¹*²

Terminal voltage

BOOT1-SW1, BOOT2-SW2, HG1-SW1, HG2-SW2

7 *¹*²

HG1

BOOT1+0.3 *¹*²

BOOT2+0.3 *¹*²

6 *¹*²

HG2

EN1, EN2

AGND±0.3 *¹*²

0.38*³

DGND, PGND1, PGND2

Power dissipation 1

Pd1

Pd2

℃

Power dissipation 2

0.88 *⁴

Power dissipation 3

Pd3

2.06 *⁵

Power dissipation 4

Pd4

4.56 *⁶

-10～+100

-55～+150

+150

Operating temperature range

Storage temperature range

Topr

Tstg

Tjmax

Junction Temperature

*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 : 0mm²))

*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^stand 4^thcopper foil area : 20.2mm², 2^ndand 3^rdcopper foil area : 5505mm²))

*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 : 5505mm²))

○Operating supply voltage range (Ta=25℃)

Parameter

Symbol

MIN.

MAX.

Unit

VIN1,VIN2

EXTVCC

4.5

-0.3

4.5

-0.3

5.5

CTL

EN1, EN2

BOOT1, BOOT2

5.5

Terminal voltage

BOOT1-SW1, BOOT2-SW2, HG1-SW1, HG2-SW2

REF1, REF2

5.5

2.75

Is+1, Is+ 2, FB1, FB2

MCTL

1.9

-0.3

5.6

INTVCC+0.3

★

This product is not designed for protection against radioactive rays.

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.

REV. B

12 3 4 5

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