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LP3218 Datasheet(PDF) 2 Page - Lowpower Semiconductor inc

Part # LP3218
Description  1.5MHz, 1.5A Step-Down Converter
PDF  8 Pages
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Manufacturer  POWER [Lowpower Semiconductor inc]
Direct Link  http://www.lowpowersemi.com
Logo POWER - Lowpower Semiconductor inc

LP3218 Datasheet(HTML) 2 Page - Lowpower Semiconductor inc

  LP3218 Datasheet HTML 1Page - Lowpower Semiconductor inc LP3218 Datasheet HTML 2Page - Lowpower Semiconductor inc LP3218 Datasheet HTML 3Page - Lowpower Semiconductor inc LP3218 Datasheet HTML 4Page - Lowpower Semiconductor inc LP3218 Datasheet HTML 5Page - Lowpower Semiconductor inc LP3218 Datasheet HTML 6Page - Lowpower Semiconductor inc LP3218 Datasheet HTML 7Page - Lowpower Semiconductor inc LP3218 Datasheet HTML 8Page - Lowpower Semiconductor inc  
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LP3218-04
Jun.-2015
Email: marketing@lowpowersemi.com
www.lowpowersemi.com
Page 2 of 8
Preliminary Datasheet
LP3218
Typical Application Circuit
Functional Pin Description
Package Type
Pin Configurations
SOT23-5
VIN
GND
EN
LX
FB
1
2
3
4
5
Top View
Pin Description
Pin
Name
Description
1
EN
Enable pin. Active high.
2
GND
Ground.
3
LX
Switch Mode Connection to Inductor. This pin connects to the drains of the internal main
and synchronous power MOSFET switches.
4
VIN
Supply Input. Power supply input pin. Must be closely decoupled to AGND with a 22μF
or greater ceramic capacitor.
5
FB
Feedback Input. Connect FB to the center point of the external resistor divider. Normal
voltage for this pin is 0.6V.
EN
1
LX
3
GND
2
FB
5
Vin
4
LP3218
2.2uH
C2
22uF
R1
45K
R2
10K
C1
22uF
VIN
VOUT



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