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LP6221 数据表(PDF) 2 Page - Lowpower Semiconductor inc

部件名 LP6221
功能描述  High Efficiency Boost DC/DC Convertor
PDF  7 Pages
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制造商  POWER [Lowpower Semiconductor inc]
网页  http://www.lowpowersemi.com
标志 POWER - Lowpower Semiconductor inc

LP6221 数据表(HTML) 2 Page - Lowpower Semiconductor inc

  LP6221 Datasheet HTML 1Page - Lowpower Semiconductor inc LP6221 Datasheet HTML 2Page - Lowpower Semiconductor inc LP6221 Datasheet HTML 3Page - Lowpower Semiconductor inc LP6221 Datasheet HTML 4Page - Lowpower Semiconductor inc LP6221 Datasheet HTML 5Page - Lowpower Semiconductor inc LP6221 Datasheet HTML 6Page - Lowpower Semiconductor inc LP6221 Datasheet HTML 7Page - Lowpower Semiconductor inc  
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LP6226/A-04
May.-2013
Email: marketing@lowpowersemi.com
www.lowpowersemi.com
Page 2 of 7
Preliminary Datasheet
LP6226/A
Functional Pin Description
Package Type
Pin Configurations
SOT23-6
1
2
3
4
5
6
Pin
Name
Description
1
SW
switching pin.
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 LP6226 into low current shutdown mode.
5
VIN
Power Supply pin.
6
NC
No Connecter.
Function Diagram
FB
EN
SHUTDOWN
CIRCUITRY
UVLO
SOFT
START
CONTROL
AND DRIVER
LOGIC
SLOPE
COMPENSASION
OSCILLATOR
OVP
VIN
SW
GND
OTP
SHORT
CIRCUIT
COMP.
Error
Amp.
PWM
COMP.
CURRENT
SENSE
AMP.
10μA
0.3V
0.6V/1.25V
Σ
+
+
+
+
-
-
-
-



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