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LP3318 数据表(PDF) 2 Page - Lowpower Semiconductor inc

部件名 LP3318
功能描述  1MHz,36V/1.5A High Performance, Boost Converter
PDF  6 Pages
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制造商  POWER [Lowpower Semiconductor inc]
网页  http://www.lowpowersemi.com
标志 POWER - Lowpower Semiconductor inc

LP3318 数据表(HTML) 2 Page - Lowpower Semiconductor inc

  LP3318 Datasheet HTML 1Page - Lowpower Semiconductor inc LP3318 Datasheet HTML 2Page - Lowpower Semiconductor inc LP3318 Datasheet HTML 3Page - Lowpower Semiconductor inc LP3318 Datasheet HTML 4Page - Lowpower Semiconductor inc LP3318 Datasheet HTML 5Page - Lowpower Semiconductor inc LP3318 Datasheet HTML 6Page - Lowpower Semiconductor inc  
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 2 / 6 page
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LP3318-00
May.-2018
Email: marketing@lowpowersemi.com
www.lowpowersemi.com
Page 2 of 6
Preliminary Datasheet
LP3318
Functional Pin Description
Package Type
Pin Configurations
SOT23-5
1
3
5
4
LX
VIN
SOT23-5
TOP VIEW
2
GND
FB
EN
Pin Description
Pin
Name
Description
1
LX
Output Switching Node. LX is the drain of the internal low-side N-Channel MOSFET and
high-side P-Channel MOSFET. Connect the inductor to LX to Complete the step-up converter.
2
GND
Ground.
3
FB
Regulation Feedback Input. Connect to an external resistive voltage divider from the output to
FB to set the output voltage.
4
EN
Regulator On/off Control Input. A logic high input(VEN>1.4V) turns on the regulator. A logic low
input(VEN<0.4V) puts the LP3318 into low current shutdown mode.
5
VIN
Power Supply pin.
Function Block Diagram
FB
EN
SHUTDOWN
CIRCUITRY
UVLO
SOFT
START
CONTROL
AND DRIVER
LOGIC
SLOPE
COMPENSASION
OSCILLATOR
OVP
VIN
LX
GND
OTP
SHORT
CIRCUIT
COMP.
Error
Amp.
PWM
COMP.
CURRENT
SENSE
AMP.
10μA
0.3V
1.23V
Σ
+
+
+
+
-
-
-
-



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