BD9524MUV_10 Datasheet, PDF (5/21 Pages) Rohm – Main Power Supply IC for Note PC (Linear Regulator Integrated)

BD9524MUV
●Pin Configuration
24 23 22 21 20 19 18 17
PGND1 25
LG1 26
EXTVCC 27
REG2 28
REG1 29
VIN 30
LG2 31
PGND2 32
16 Is+1
15 FB1
14 FS1
13 AGND
FIN
12 MCTL
11 FS2
10 FB2
9 Is+2
12345678
Technical Note
●Pin Function Table
PIN No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
Reverse
PIN name
SW2
HG2
BOOT2
EN2
PGOOD2
SS2
DGND
REF2
Is+2
FB2
FS2
MCTL
AGND
FS1
FB1
Is+1
REF1
CTL
SS1
PGOOD1
EN1
BOOT1
HG1
SW1
PGND1
LG1
EXTVCC
REG2
REG1
VIN
LG2
PGND2
FIN
PIN Function
Highside FET source pin 2
Highside FET gate drive pin 2
HG Driver power supply pin 2
Vo2 ON/OFF pin (High=ON, Low=OFF)
Vo2 Power Good Open Drain Output pin
Vo2 soft start pin
Ground
Vo2 output voltage setting pin
Current sense pin +2
Vo2 output voltage sense pin, current sense pin -2
Input pin for setting Vo2 frequency
Mode shift pin (Low=continuous, Middle=QLLM, High=SLLM)
Input pin Ground
Input pin for setting Vo1 frequency
Vo2 output voltage sense pin, current sense pin -1
Current sense pin +1
Vo1 output voltage setting pin
Linear regulator ON/OFF pin (High=ON, Low=OFF)
Vo1 soft start pin
Vo1 Power Good Open Drain Output pin
Vo1 ON/OFF pin (High=ON, Low=OFF)
HG Driver power supply pin 1
Highside FET gate drive pin 1
Highside FET source pin 1
Lowside FET source pin 1
Lowside FET gate drive pin 1
Outside power supply input pin
3.3V linear regulator output pin
5V linear regulator output pin
Power supply input pin
Lowside FET gate drive pin 2
Lowside FET source pin 2
Exposed Pad, Connect to GND
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
5/20
2010.03 - Rev.C