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P1583 Datasheet(PDF) 2 Page - Unisonic Technologies

Part # P1583
Description  380KHz, 2.5A STEP-DOWN SWITCHING REGULATOR
PDF  5 Pages
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Manufacturer  UTC [Unisonic Technologies]
Direct Link  http://www.utc-ic.com
Logo UTC - Unisonic Technologies

P1583 Datasheet(HTML) 2 Page - Unisonic Technologies

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P1583
Preliminary
LINEAR INTEGRATED CIRCUIT
UNISONICTECHNOLOGIESCO.,LTD
2 of 5
www.unisonic.com.tw
QW-R103-071.a
PIN CONFIGURATION
1
SW
EN
COMP
FB
2
3
4
5
6
7
8 SS
BS
GND
GND
IN
PIN DESCRIPTION
PIN NO.
PIN NAME
DESCRIPTION
1
BS
Supply pin to the power transistor driver.
2
IN
Power supply pin.
3
SW
Power switch output pin.
4
GND
Ground pin.
5
FB
The output voltage feedback pin. It is also the inverting input of the error amplifier.
6
COMP
Compensation pin.
7
EN
Regulator On/Off control pin.
8
SS
Soft start control input.
BLOCK DIAGRAM
+
-
+
-
+
-
+
S
R
Q
+
Reference
40K-380KHz
Slope COMP
IN
BS
GND
COMP
FB
EN
SS
Slope COMP
Slope COMP
SW
PWM
EA
Driver
Power
Transistor
Rsense
Current Sense
1.22V
UVLO
OTP
UVLO
UVLO
7
2
6
5
8
4
3
1



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