LP3315 Datasheet, PDF (1/8 Pages) Lowpower Semiconductor inc – 1.2MHzFixed-Frequency PWM Operation

Preliminary Datasheet
LP3315
1.2MHz,30V/1A High Performance, Boost Converter
General Description
The LP3315 is a 1.2MHz PWM boost switching
regulator designed for constant-voltage boost
applications. The LP3315 can drive a string of up to
30V. The LP3315 implements a constant frequency
1.2MHz 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 1250mV, which reduces
the power dissipation in the voltage setting resistor.
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.
Ordering Information
LP3315
Pin Configurations
F: Pb-Free
Package:
B5: SOT23-5
Features
 High Efficiency: 90% 　
 1.2MHzFixed-Frequency PWM Operation
 Maximum Output Voltage up to 30V
 Guaranteed 13V/200mA Output with 5V input
 Operating Range : 2.7V to 5.5V
 Shutdown Supply Current:<1uA 　
 Programmable Soft-star
 Available in SOT23-6/SOT23-5 Package 　
 Minimize the External Component
 RoHS Compliant and 100% Lead (Pb)-Free
Applications
 Panel Bais Voltage supply
 OLED Backlight driver
 Notebook Computers
 Portable Applications
 MID/PTV
Typical Application Circuit
Vin
C1
4.7uF
4.7uH
5
Vin
ON
OFF
4
SHDN
3
FB
LP3315
VOUT
C2
2.2uF
C3
1nF
R1
210K
R2
30K
LP3315– 00 Version1.0 Datasheet Feb.-2012
Marking information
Please view website.
Device No.
LP3315B5F
Marking
LPS
Fbxxx
Package
SOT23-5
Shipping
3K/Reel
x represents the date( year month day)of the producing day
of the products.
www.lowpowersemi.com
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