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P1596 Datasheet(PDF) 5 Page - Unisonic Technologies

Part No. P1596
Description  150KHZ, 1.5A PWM BUCK DC/DC CONVERTER
Download  8 Pages
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Maker  UTC [Unisonic Technologies]
Homepage  http://www.utc-ic.com
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P1596 Datasheet(HTML) 5 Page - Unisonic Technologies

   
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P1596
LINEAR INTEGRATED CIRCUIT
UNISONICTECHNOLOGIESCO.,LTD
5 of 8
www.unisonic.com.tw
QW-R103-027,B
TYPICAL APPLICATION
FOR ADJUSTABLE OUTPUT VOLTAGE VERSION
For 5 PIN:
UTC P1596 -ADJ
1
+VIN
Unregulated
DC Input
35
GND
ON/OFF
2
OUTPUT
Keep Feedback Wiring
Away From Inductor Flux
Regulated Output
L
O
A
D
COUT
+
+
CIN
+
4 Feedback
Locate The Programming Resistors Near
The Feedback Pin Using Short Leads
Heavy Lines Must be Kept Short and Use
Ground Plane Construction for Best Results
D1
L1
CFF
R2
R1
1k
VOUT×(R1/(R1+ R2))=VREF
VOUT = VREF(1+ R2/R1)
Where VREF=1.23V
R2=R1((VOUT / VREF)-1)
For 4 PIN:
Co
Capacitor
3.3V/1.5A
Output Load
L1
Inductor
OUTPUT
D1
Schottky Diode
GND
UTC
P1596 -XX
1
4
2
3
VIN
FB
+
+
12V
DC Input
CIN
Capacitor
R1
R2
VOUT=VFB×(1+R1/R2)
VFB=1.23V
R2=1K~3K


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