BA9700 ROHM Electronics, BA9700 Datasheet - Page 2

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

Regulator ICs
!Electrical characteristics (unless otherwise noted, Ta = 25°C, V
〈Reference voltage section〉
Output voltage
1/2 V
Line regulation
Load regulation 1
Load regulation 2
Output voltage when power decreases
Output current when short-circuited
〈Triangular wave oscillation section〉
Oscillation frequency
Standard deviation of
oscillation frequency
Frequency variation (V
〈Error amplifier section〉
Input offset voltage
Input offset current
Maximum input voltage
Open loop gain
Common-mode rejection ratio
Input bias current
〈PWM comparator section〉
Threshold voltage 1
Threshold voltage 2
〈Output section〉
Output transistor leakage current
Output saturation voltage
Quiescent current
Standby current
Operating voltage
〈Total device〉
ref
output voltage
Parameter
CC
)
Symbol
1/2 V
CMRR
Load1
Load2
Leak
V
Vsat
Line
Iosc
fosc
fosc
V
I
V
V
V
V
fdv
I
A
V
CCS
I
I
CC
t100
IO
ICR
IB
CC
ref
ref
IO
V
t0
ref
-100
1.60
70.0
70.0
Min.
2.48
1.22
2.48
-6.0
1.25
3.55
-
-
-
-
-
-
-
-
-
-
-
-
-
BA9700A / BA9700AF / BA9700AFV
Typ.
2.57
1.29
3.00
1.00
6.00
2.57
10.0
1.90
80.0
80.0
2.04
1.43
1.70
1.70
230
180
10
1
0
-
-
-
-
CC
Max.
2.66
1.36
12.0
5.00
10.0
2.66
30.0
2.24
10.0
2.10
2.40
7.00
24.0
= 5.0V, R
100
500
6.0
-
-
-
-
-
-
-
Unit
kHz
mV
mV
mV
mA
mV
mA
t
nA
dB
dB
nA
µA
µA
%
%
V
V
V
V
V
V
V
V
= 10kΩ, and C
I
V
I
I
I
V
R
V
Null Method
Null Method
Null Method
Null Method
Null Method
Null Method
R and C are constant
ref
ref
ref
ref
DUTY 0%
DUTY 100%
V
I
R
POWER SW = 0V
O
CC
ref
T
CC
T
O
T
= 0.1mA
= 0.1mA~1.0mA
= 0.1mA~8.0mA
= 0.1mA, V
= 10kΩ, C
= 50mA
= 0V
= 24V
= OPEN POWER SW = 2.5V
= 3.55V~24V
= 3.55~24V
t
T
= 330pF)
Conditions
T
CC
= 330pF
= 3.55V