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uP6306 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - Synchronous-Rectified Buck Converter - uPI Semiconductor

भाग संख्या uP6306
समारोह Synchronous-Rectified Buck Converter
मैन्युफैक्चरर्स uPI Semiconductor 
लोगो uPI Semiconductor लोगो 
पूर्व दर्शन
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<?=uP6306?> डेटा पत्रक पीडीएफ

uP6306 pdf
uP6306
Functional Pin Description
Pin No. Pin Name Pin Function
1
VIN
Power Supply Input. Input voltage that supplies current to the output voltage and powers the
internal 5V linear regulators.
2
VDD5
Bias Supply for Upper MOSFET Driver. Connect a minimum 4.7uF ceramic capacitor from
this pin to VIN pin to bypass the bias voltage.
3 AGND Signal Ground. Connect the return of all small signal components to this pin.
4
FB
Feedback Voltage. This pin is the inverting input to the error amplifier. A resistor divider from
the output to AGND is used to set the regulation voltage.
Error Amplifier Output. This is the output of the error amplifier (EA) and the non-inverting input
5 COMP/EN of the PWM comparators. Use this pin in combination with the FB pin to compensate the voltage-
control feedback loop of the converter.
Bias Supply. This pin is the output of internal 5V linear regulator, supplying current for the lower
6 VCC5 MOSFET driver and internal circuitry. Connect a minimum 4.7uF ceramic capacitor form this pin
to AGND pin to bypass the bias voltage.
7 LX Internal Switches Output. Connect this pin to the output inductor.
8 PGND
Exposed Pad I
Main Power Ground Return. Connect to the output and input capacitor return.
Internal Switches Output. The exposed pad should be well soldered to PCB with multiple
vias to ground plane for optimal thermal performance. This pin should be electrically
connected to LX pin on PCB.
Exposed Pad II Signal Ground. Connect the return of all small signal components to this pin.
Functional Block Diagram
VCC5
VDD5
FB
AGND
COMP/EN
SS Soft
Start
0.8V
VREF
(0.8V)
Error
Amplifier
0.5V
Internal
Regulator
Internal
Regulator
POR
300mV
OCP
Comparator
VDD5
PWM
PWM
Comparator
Gate
Control
Logic
VCC5
Enable Oscillator
VIN
LX
PGND
uPI Semiconductor Corp., http://www.upi-semi.com
Rev. F01, File Name: uP6306-DS-F0100
2

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भाग संख्याविवरणविनिर्माण
uP6306Synchronous-Rectified Buck ConverteruPI Semiconductor
uPI Semiconductor


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