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FP6329ASOGTR Datasheet(PDF) 2 Page - Fitipower Integrated Technology Inc.

Part # FP6329ASOGTR
Description  Synchronous Buck PWM DC-DC Controller
PDF  16 Pages
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Manufacturer  FITIPOWER [Fitipower Integrated Technology Inc.]
Direct Link  http://www.fitipower.com/en_US/index.asp
Logo FITIPOWER - Fitipower Integrated Technology Inc.

FP6329ASOGTR Datasheet(HTML) 2 Page - Fitipower Integrated Technology Inc.

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FP6329/A/B-1.0-APR-2010
FP6329/A
85T
fitipower integrated technology lnc.
Typical Application Circuit
FB
VCC
GND
LGATE/OCSET
COMP/SD
PHASE
UGATE
BOOT
C3
1µF
CIN
VIN
+3.3V/ +5V/ +12V
VOUT
COUT
Q2
ML
Q1
MU
C2
0.1µF
Vcc
+5V/ +12V
C1
1µF
R1
10
R2
R3
R4
C9
3
6
5
1
2
8
7
4
FP6329/A
L1
C7
R5
ROCSET
C4
C5
R6
R8
R9
R7
Figure 2. Typical Application Circuit of FP6329/A
Functional Pin Description
Pin Name
Pin Function
BOOT
This pin provides bias voltage to the high side MOSFET Driver.
A bootstrap circuit may be to create a BOOT
voltage suitable to drive a standard N-Channel MOSFET.
UGATE
Connect UGATE to the high side MOSFET gate.
This pin is monitored by the adaptive shoot-through protection
circuitry to determine when the high side MOSFET has turned off.
GND
Ground.
LGATE/OCSET
Connect LGATE to the low side MOSFET gate.
This pin is monitored by the adaptive shoot-through protection
circuitry to determine when the high side MOSFET has turned off.
Connect a resistor (ROCSET) from this pin to
GND to
determine the over-current threshold of the converter.
VCC
Power Pin.
FB
Feedback Pin.
The typical reference voltage is 0.6V.
COMP/SD
PWM error amplifier output and Shutdown Control pin.
It can be used to compensate the voltage control
feedback loop of the converter
PHASE
Connect the PHASE pin to the high side MOSFET source.



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