BD9302FP-E Datasheet, PDF (3/17 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.

Electrical characteristics
Electrical characteristics (Unless otherwise specified, Ta=25˚C, Vcc=12 V, RT=10 kΩ)
Limits
Item
Symbol
Min
Typ
Max
Unit
[Error amplifier block]
Input bias current
IIB
–
0.4
1
uA
Voltage gain
AV
–
200
–
V/V
COMP maximum output voltage
VOH
1.75
1.95
–
V
COMP minimum output voltage
VOL
–
0.8
1.0
V
Output sink current
IOI
1
2
4
mA
Output source current
IOO
–8
–4
–1
mA
Feedback voltage
VFB
0.588
0.600
0.612
V
[Output block]
–
Upper-side ON resistance
Ronh
–
0.4
0.6
Ω
Low-side ON resistance
Ronl
0.1
2
3
Ω
OFF current
IOFF
0.2
0.4
mA
[Total device]
Average supply current
–
ICC
5
–
mA
Not designed for radiation resistance.
* Design guarantee (No 100% pre-shipment inspections are conducted.)
Conditions
ICOMP= -0.1mA
ICOMP=0.1mA
VFB=0.8V
VFB=0.4V
Buffer
Io=1A*
Io=20mA*
SW=0V
RT=1.0V
Measurement circuit diagram
100kΩ
1kΩ
NULL AMP
+
–
V
10kΩ
0.6V 1000pF
1000pF
10pF
30kΩ
30kΩ
VA
10pF _30kΩ
30kΩ
VA
NULL AMP
100kΩ
+
–
1kΩ
V
0.6V ^1000pF
10kΩ
1000pF
VA
1V
10K
A
1V
V
A
12V
A
1V
V
VA
PGND1 SW1L
COMP1
FB1
SW1
SW1
RT
BOOT1
NC
PVcc
SS1
PVcc
Ω
A
5V
1uF
Vcc
SS2
PVcc
NC
PVcc
FB2
BOOT2
COMP2 ^SW2
GND
SW2
PGND2 SW2L
5V
1uF
Ω
A
Fig. 1 Typical measurement circuit
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