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BA9700A View Datasheet(PDF) - ROHM Semiconductor

Part Name
Description
View to exact match
BA9700A Datasheet PDF : 7 Pages
1 2 3 4 5 6 7
Regulator ICs
!Timing chart
ERR. AMP
OUTPUT
DEAD - TIME
BA9700A / BA9700AF / BA9700AFV
H
PWM. COMP
OUTPUT
L
OUTPUT TR.
COLLECTOR
H
L
Fig.1
!Application examples
VIN
GND
R9
47k
8
SW1
10
2.57V
11
30k
R1
43k
13
1.29V
30k
14
C1
R2
15k
R3
680p
12
7.5k C2
4
0.047µ
Voltage
Regulator
Vref
ERROR AMP
+
C9 1000p
3
R8 15k
2
C8
470µ
Triangle
Oscillator
9 N.C.
6 N.C.
PWM COMPARATOR
5
Q1 2SB1009
L1
120µH
RB100A
R7
560
D1
5V
VOUT
C5, C6
470µF
×2
GND
R6
560
7
1
C4 1µ
+
R4 15k
R5 20k
L1: RCH-875 121K (Sumida Electronics)
Fig.2 Step-down converter
 

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