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LP3301

Description
1.5MHz Fixed-Frequency PWM Operation
File Size301KB,6 Pages
ManufacturerLowPower Semiconductor ( LPS)
Websitehttp://www.lowpowersemi.com/html/EN/ABOUT/
Download Datasheet View All

LP3301 Overview

1.5MHz Fixed-Frequency PWM Operation

Preliminary Datasheet
LP3301
1.5MHz Step-up DC/DC Converter
General Description
The LP3301 is a 1.5MHz PWM boost
switching regulator designed for constant-
Voltage driver applications.
The LP3301 implements a constant
frequency 1.5MHz PWM control scheme. The
high frequency PWM operation also saves
board space by reducing external component
sizes. To improve efficiency, the feedback
voltage is set to 1.25V.
Highly integration and internal compensation
network minimizes as 5 external component
counts. Optimized operation frequency can
meet the requirement of small LC filters value
and low operation current with high
efficiency.
Features
High Efficiency: 85%
1.5MHz Fixed-Frequency PWM Operation
36V 500mA Integrated switch
Shutdown Supply Current:<1uA
Available in SOT23-5 Package
Built-in Over Voltage Protection of 29V
Minimize the External Component
RoHS Compliant and 100% Lead
(Pb)-Free
Pin Configurations
Ordering Information
LP3301
□ □
F:Pb-Free
Package Type
B5: SOT-23-5
Applications
LCD Bias Supply
OLED Driver
GPS/PDA/Mobile phone
Marking information
Please view website.
Typical Application Circuit
+15V
3
10uH
47K
5
1uF
5
ON/OFF
4
2
Vin
SHDN
GND
LP3301
Vout=(R1/R2+1)X1.25 V
FB
3
R2
10K
SW
1
R1
182K
10uF 0.1uF
4
2
SHDN
GND
LP3301
100K
FB
3
1.1M
1
BAT54
3
Vout=(R1/R2+1)X1.25 V
4.7uF
-15V
100pF
2
Vin
SW
1
1uF
BAT54/SOT
4.7uF
0.1uF
1
Vin
Vin
3
10uH
1uF
IN5819
1
24V
LP3301 Boost Circuit
LP3301 Boost Circuit for LCD Bias
LP3301-datasheet
Dec.-2005
1
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1
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