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FP6329A

Fiti
Part Number FP6329A
Manufacturer Fiti
Description Synchronous Buck PWM DC-DC Controller
Published Apr 22, 2014
Detailed Description fitipower integrated technology lnc. Preliminary FP6329/A Synchronous Buck PWM DC-DC Controller Description The FP632...
Datasheet PDF File FP6329A PDF File

FP6329A
FP6329A

Overview
fitipower integrated technology lnc.
Preliminary FP6329/A Synchronous Buck PWM DC-DC Controller Description The FP6329/A is designed to drive two N-channel MOSFETs in a synchronous rectified buck topology.
It provides the output adjustment, internal soft-start, frequency compensation networks, monitoring and protection functions into a single package.
The FP6329/A operating at fixed 300/600kHz frequency provides simple, single feedback loop, voltage mode control with fast transient response.
The resulting PWM duty ratio ranges from 0-100%.
The FP6329/A features over current protection.
The output current is monitored by sensing the voltage drop across the RDS-ON of the low side MOSFET which eliminates the need for a current sensing resistor.
This device is available in SOP-8 package.
Features ● Operates from +5V or +12V ● High Output Current ● Drives Two Low Cost N-Channel MOSFETs ● Fast Transient Response ● Simple Single-Loop Control Design ( Voltage-Mode PWM Control) ● Internal Soft-Start ● Over-Current Protection ● Over-Voltage Protection ● Under-Voltage Protection ● SOP-8 Package ● RoHS Compliant Applications ● Motherboard ● Graphic Card ● Telecomm Equipments ● High Power DC-DC Regulators ● Switching Power Supply (SPS) Pin Assignment SO Package (SOP-8) Ordering Information FP6329□□□□ TR: Tape / Reel G: Green Package Type SO: SOP-8 SP: SOP-8(Exposed Pad) Switching Frequency Blank: 300kHz A: 600kHz SP Package (SOP-8) Figure 1.
Pin Assignment of FP6329/A FP6329/A/B-Preliminary 0.
2-2009 1 Free Datasheet http://www.
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Preliminary FP6329/A Typical Application Circuit Figure 2.
Typical Application Circuit of FP6329/A Functional Pin Description Pin Name BOOT UGATE GND LGATE/OCSET VCC FB COMP/SD PHASE Pin Function 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.
Connect UGATE to th...


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