Description
NX2142/2142A SINGLE CHANNEL PWM CONTROLLER WITH FEEDFORWARD AND 5V BIAS REGULATOR ADVANCE DATA SHEET Pb Free Product .
The NX2142/2142A controller IC is a compact synchronous Buck controller IC with 10 lead MSOP package designed for step down DC to DC converter applic.
Features
* in-
n n n
cludes: 5V gate drive capability , Converter Shutdown by pulling COMP pin to Gnd, Adaptive dead band con-
n
trol. Vin +8 to 20V
47uF
MMBT3904
FEATURES
Bus voltage operation from 7V to 24V 5V bias regulator available Excellent dynamic response with input voltage feed-forward and volt
Applications
* Graphic Card on board converters Vddq Supply in mother board applications On board DC to DC such as 12V to 3.3V, 2.5V or 1.8V Set Top Box and LCD Display
TYPICAL APPLICATION
1uF
25TQC33M
1uF
BAT54A
7
1
VCC BST 6 REGOUT Hdrv 2 5 VIN
0.1uF
NX2142
9
COMP
SW 10
27pF
20k 5.2nF
Ldrv 4
8 FB Gn