BA9700 ROHM Electronics, BA9700 Datasheet - Page 6

• Manufacturer Part Number: BA9700
• Description: Switching Regulator for DC / DC Converters
• Manufacturer: ROHM Electronics

Regulator ICs
! ! ! ! Electrical characteristic curves
100k
Fig.8
10k
1M
1k
-100
-200
300
200
100
Fig.11
1k
0
-20
-40
Oscillation frequency
characteristic vs. triangular
wave oscillator resistance (1)
80
60
40
20
0
0
Phase and gain vs. frequency
for the error amplifier
10k
100
RT (Ω)
FREQUENCY (Hz)
1k
C
C
C
T
T
T
= 220pF
= 2200pF
= 0.022µF
100k
10k
100k
1M
1M
10M
100k
Fig.9
10k
1M
1k
Oscillation frequency
characteristic vs. triangular
wave oscillator resistance (2)
100p
BA9700A / BA9700AF / BA9700AFV
1000p
CT
(F)
0.01µ
R
T
= 20kΩ
0.1µ
Fig.10
4.00
3.50
3.00
2.50
2.00
1.50
1.00
0.50
0.00
Output voltage vs. operating
voltage for the reference
voltage section
5
10
V
CC
(V)
15
20
25