ADT7220 ADTECH [ADTech], ADT7220 Datasheet - Page 3

• Manufacturer Part Number: ADT7220
• Description: power supply chip with 3.3V regulated output
• Manufacturer: ADTECH [ADTech]

Jun. 16. 2008 / Rev. 0.1
Functional Block Diagram
Pin Description
I : Input pin
P : Power pin
A : Analog pin
Pin No.
1
2
3
4
5
6
GND
VIN
FB
Name
PWM
GND
OUT
DRV
VIN
FB
O : Output pin
G : Ground pin
D : Digital pin
ZIN
* This specifications are subject to be changed without notice
I/O
I/O
Internal
O
O
BIAS
REG.
-
-
I
LDO
DRV
REF
Type
IO : Input/Output pin
G
D
A
A
A
P
ERROR AMP
+
-
ZFB
Power supply input
Ground
Switching output
Feedback voltage input
LDO output
LDO pass transistor drive signal
OUT
3/6
(500kHz)
OSC
Modulator
+
PWM
-
Description
http://www.ad-tech.co.kr
DRIVER
Pre-
ADT7220
PWM