ADT6780 Datasheet, PDF (2/13 Pages) ADTech – Thermally enhanced Low VFB Step-Down LED Driver

Thermally enhanced Low V_FB Step-Down LED Driver
ADT6780
Part List
Component
U1
D1
L1
C1
C2
C3
C4
C5
R1
R2
Type
IC
Schottky Barrier Diode
Chip inductor
MLCC
MLCC
MLCC
MLCC
MLCC
Chip resistor
Chip resistor
Value (Model)
ADT6780
B230A
6.8uH / 3A
10㎌ / 35V
10㎌ / 10V
8.2㎋
100㎋
10㎋
0.2Ω / 1%
2㏀
Manufacturer
ADTech
DIODES
TDK
-
-
-
-
-
-
-
Pin Description
Pin No.
1
2
3
4
5
6
7
8
Name
BST
VIN
SW
GND
FB
COMP
EN
SS
Description
High-Side Gate Drive Boost Input. This pin acts as the power supply of high-side gate
driving blocks. Connect a 10nF or greater capacitor between SW and BST pin.
Power supply input. Bypass VIN to GND with a suitably large capacitor to eliminate
noise on the input to the IC.
Switching node. The free-wheeling diode is connected between SW and GND.
Ground. Connect the exposed pad on backside to GND.
Feedback voltage input. The regulated FB voltage is 0.2V typically.
Compensation node. COMP is used to compensate the regulation control loop.
Chip enable input. Also this pin functions UVLO input.
Soft start control node. This pin controls the soft start period.
BST 1
VIN 2
SW 3
GND 4
exposed pad
* connect to GND
8 SS
7 ^EN
6 COMP
5 FB
ADT6780
Package outline
Jul. 12. 2012 / Preliminary
* This specifications are subject to be changed without notice
2/13
http://www.ad-tech.co.kr