BD9302FP-E Datasheet, PDF (6/17 Pages) Rohm – A wide input voltage range of 6 V to 18 V, Easy switching frequency setting in the range of 200 k to 2.5 MHz.

Pin assignment
PGND1 1
COMP1 2
FB1 3
RT 4
N.C. 5
SS1/SDWN 6
Fin
VCC 7
SS2/SDWN 8
N.C. 9
FB2 10
COMP2 11
GND 12
PGND2 13
Block diagram
25 SW1L
24 SW1
23 SW1
22 BOOT1
21 PVCC
20 PVCC
PGND1 1
COMP1 2
0.6V
FB1 3
+ ERR
-
Fin
RT 4
19 PVCC
18 PVCC
17 BOOT2
16 SW2
15 SW2
14 SW2L
N.C. 5
SS1/SDWN ⁶
VCC 7
VREF
SS2/SDWN ⁸
slope
+-
PWM
Internal
Bias
OSC
25 SW1L
OCP
DRV2 _SDWN
Set
DRV1
Reset
SDWN
Current
Sense
24 SW1
23 SW1
22 BOOT1
21 PVCC
UVLO
TSD
5V
20 PVCC
19 PVCC
N.C. 9
0.6V
+
FB2 10
-
ERR
PWM
+-
COMP2 11
slope
GND 12
SDWN
Set
Reset ^DRV1
DRV2 ^SDWN
OCP
18 PVCC
17 BOOT2
Current
Sense
16 SW2
15 SW2
PGND2 13
14 SW2L
Fig.18 Pin assignment / Block diagram
TOP VIEW
Pin assignment / functions
Pin No. Pin name
Function
1
PGND1 Ground
2
COMP1 Error amplifier output
3
FB1
Error amplifier inverting input
4
RT
Frequency setting resistor connection
5
–
N.C.
6
SS1/SDWN _{Soft start capacitor connection}
(Shutdown at Low)
7
VCC
Power supply input
8
SS2/SDWN Soft start capacitor connection
(Shutdown at Low)
9
–
N.C.
10
FB2
Error amplifier inverting input
11
COMP2 ^{Error amplifier output}
12
GND
Ground
Pin No.
13
14
15
16
17
18
19
20
21
22
23
24
25
Pin name
PGND2
SW2L
SW2
SW2
BOOT2
Pvcc
Pvcc
Pvcc
Pvcc
BOOT1
SW1
SW1
SW1L
Function
Ground
Switching output 2 (Low side)
Switching output 2
Switching output 2
Boot capacitor connection
Power supply input
Power supply input
Power supply input
Power supply input
Boot capacitor connection
Switching output 1
Switching output 1
Switching output 1 (Low side)
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