BD9532EKN_08 Datasheet, PDF (7/21 Pages) Rohm – Switching Regulators for DDR-SDRAM Cores

●Block Diagram
2 ^VCC
5 ^VIN
19 ^VREG
SS
16
EN
4
Reference
Block
VREG
VIN
UVLO
SCP
7
REF×0.7
SS×0.7
VOUT
REF
20
SCP
SCP
H³Reg^TM
Controller
Block
VOUT
18
SS
Thermal
Protection
TSD
+
+
-
UVLO
ILIM
SCP
TSD
2.5VReg
R
S
2.5V
SS
Soft Start Block
Q
SLLM
SLLM
Current Limit
ILIM
+
Driver
Circuit
BOOT
15
14
HG
13
SW
VDD
12
11
LG
10
PGND
VDD
VIN
VOUT
1
GND
17
FS
6
3
SLLM ILIM
9
Is+
8 _Is-
●PHYSICAL DIMENSIONS
BD9532
1PIN MARK Lot No.
(UNIT：mm)
HQFN20V
※ Mounting is not recommended to the dotted line part.
7/20
●Pin Number・Pin Name
Pin
No.
Pin Name
1
GND
2
VCC
3
ILIM
4
EN
5
VIN
6
SLLM
7
SCP
8
IS-
9
IS+
10
PGND
11
LG
12
VDD
13
SW
14
HG
15
BOOT
16
SS
17
FS
18
VOUT
19
VREG
20
REF
-
FIN
Please short FIN to the 1PIN