AA18380 Agamem Microelectronic, AA18380 Datasheet - Page 2

• Manufacturer Part Number: AA18380
• Description: Switching Regulator Controller
• Manufacturer: Agamem Microelectronic

PRELIMINARY
■PIN DESCRIPTIONS
■BLOCK DIAGRAM
©Copyright Agamem Microelectronics Inc.
Pin No.
IN-
FB
1
2
3
4
5
6
7
8
1
8
Symbol
BR/CTL
Voltage Supply
GND
OUT
OSC
SCP
V
IN-
FB
GND
0.5V
CC
Reference
6
Vcc
+
-
Amp.
3
Error
Agamem Microelectronics Inc.
1.25V
I/O
—
—
—
—
O
O
I
I
0.1V
500Ω
36KΩ
Internal error amplifier inverting input pin
Soft start and short circuit protection setting capacitor connection pin
IC power supply pin
Output current setting and control pin
Output voltage monitoring pin
Ground pin
Timing capacitor & resistor connection pin for setting the internal PWM
frequency
Error amplifier output pin
Soft start SCP
0.8V
OSC
SCP
2
7
0.1V
Sawtooth wave
DTC 0.6V
Oscillator
+
+
+
-
2
COMP.
PWM
Description
Control circuit
Output drive
AA18380
Switching Regulator Controller
www.agamem.com.tw
BR/CTL
4
0.3V
30KΩ
2007/1/15
5
OUT