ADT7350
Part List
Component
Type
Value (Model)
ADT7350
Manufacturer
ADTech
U1
D1
L1
C2
C1
CB
R1
R2
IC
Schottky barrier diode
Chip inductor
MLCC
RSX101M-30
4.7uH / 1.6A
ROHM
TDK
22 / 16V
㎌
-
-
-
-
-
MLCC
10 / 50V
㎌
MLCC
10
㎋
Chip resistor
Chip resistor
49.9 / 1%
㏀
16.2 / 1%
㏀
• R1,R2 : VOUT 3.3V typical case
Pin Description
Pin
Name
No.
Pin Description
Bootstrap. This pin acts as the power supply for internal Power Transistor driver.
Connect a 10nF capacitor between this pin and SW pin.
1
2
3
BST
GND
FB
Ground and heat sink. Connect this pin to a large copper PCB area.
Feedback voltage input. The voltage of this pin is regulated to 0.81V. The shielding in the
PCB layout is option and connect resistor divider as close as possible.
Chip enable input. The Enable voltage range is higher than 1.2V and disable voltage is
lower than 0.4V.
4
EN
5
6
VIN
SW
Power supply input. The input bypass capacitor should be as close as GND pin.
Switching node. The free-wheeling diode is connected between this pin and GND.
1
6
BST
SW
2
3
5
4
GND
FB
VIN
EN
4
4
* This specifications are subject to be changed without notice
http://www.ad-tech.co.kr
Aug 21. 2012 / Rev. 0.2
2/10
ADTECH [ ADTECH ]
