AN8018 Panasonic Semiconductor, AN8018 Datasheet - Page 8

• Manufacturer Part Number: AN8018
• Description: 1.8-volt 2-channel step-up/ step-down/ or inverting DC-DC converter control IC
• Manufacturer: Panasonic Semiconductor

AN8018SA
8
Pin No.
Terminal Equivalent Circuits (continued)
12
13
14
15
16
IN 2
15
V
14
CC
V
30 k
60 k
1.19 V
100
CC
Equivalent circuit
0.9 V
V
FB2
CC
0.9 V
16
OSC
Internal circuit
start/stop
47 A
47 A
12
V
CC
1.19 V
OSC
13
PWM
PWM
DT2:
The pin for setting channel 2 output maximum
duty ratio.
If this terminal is set at a voltage of 0.9 V or more,
FB2 terminal becomes high-level voltage and the
protective function for channel 2 output short-
circuit will stop (Unlatch function).
FB2:
The output pin for error amplifier 2 block.
The source current is 47 A and the sink current
is 47 A.
Correct the frequency characteristics of the gain
and the phase by connecting a resistor and a ca-
pacitor between this terminal and GND.
IN 2:
The noninverting input pin for error amplifier 2
block.
Off:
The terminal for on/off control.
High-level input: Normal operation (V
V)
Low-level input: Standby state (V
The total current consumption in the standby state
can be suppressed to a value 1 mA or less.
V
The output terminal for the internal reference
voltage.
The reference voltage is 1.19 V (allowance: 2%) at
V
Connect a capacitor of 0.01 F or more between
V
REF
CC
REF
:
and GND for phase compensation.
2.4 V and I
Description
REF
0.1 mA.
Voltage Regulators
OFF
OFF
0.8 V)
1.3
I/O
O
O
I
I
I