LP3301S Datasheet, PDF (1/8 Pages) Lowpower Semiconductor inc – 1.2MHzFixed-Frequency PWM Operation

Preliminary Datasheet LP3301S
1.2MHz,30V/1.4A High Performance, Boost Converter
General Description
The LP3301S is a 1.2MHz PWM boost switching
regulator designed for constant-voltage boost
applications. The LP3301S can drive a string of up
to 30V. The LP3301S 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 1250 mV,
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
LP3301S
F: Pb-Free
Package:
B5: SOT23-5
B6: SOT23-6
Pin Configurations
Features
High Efficiency: 95% 　
1.2MHzFixed-Frequency PWM Operation
Maximum Output Voltage up to 30V
Guaranteed 13V/400mA 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
10uH
LP33011s
LX
6 _Vin
FB ³
4 _SHDN GNDSS 5
2
Vout
C2
4.7uF
C3/NC
100pF
R1
860K
C4
33nF
R2
100K
(TSOT23-6)
(SOT23-5)
Marking information
Please view website.
LP3301S– 00 Version1.0 Datasheet Feb.-2010
www.lowpowersemi.com
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