AN8018SA
Voltage Regulators
s
Electrical Characteristics at V
CC
=
2.4 V, C
REF
=
0.1
µF,
T
a
=
25°C (continued)
•
Design reference data (continued)
Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed.
Parameter
Output 2 block
RB terminal voltage
Short-circuit protection block
Comparator threshold voltage
On/off control block
Off terminal current
Symbol
Conditions
Min
Typ
Max
Unit
V
B
0.36
V
V
THL
1.19
V
µA
I
OFF
23
s
Terminal Equivalent Circuits
Pin No.
1
Equivalent circuit
Description
OSC:
The terminal used for connecting a timing capaci-
tor/resistor to set oscillation frequency.
Use a capacitance value within the range of 100 pF
to 10 000 pF and a resistance value within the range
of 3 kΩ to 30 kΩ. Use an oscillation frequency in the
range of 20 kHz to 1 MHz. When operating the
circuit in parallel and synchronously, the channel 2
output stops when this pin becomes 0.9 V or more.
(Refer to the "Application Notes, [7]" section.)
S.C.P.:
The terminal for connecting a capacitor to set the
time constant of the timer latch short-circuit pro-
tection circuit. Use a capacitance value in the range
of 1 000 pF or more. The charge current I
CHG
is
1.1
µA
typical.
IN+1:
The noninverting input pin for error amplifier 1
block.
IN−1:
The inverting input pin for error amplifier 1 block.
I/O
O
V
CC
Latch
0.2 V
1
S
R
Q
2
V
CC
1.1
µA
2 kΩ
Latch
O
S
1.19 V R
2
Q
Output
cut-off
3
V
CC
I
4
4
100
Ω
100
Ω
3
I
5
47
µA
IN+1
IN−1
OSC
47
µA
5
PWM
FB1:
The output pin for error amplifier 1 block.
The source current is
−47 µA
and the sink current
is 47
µA.
Correct the frequency characteristics of the gain
and the phase by connecting a resistor and a capa-
citor between this terminal and GND.
O
6
PANASONIC [ PANASONIC SEMICONDUCTOR ]
