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L3380

UTC
Part Number L3380
Manufacturer UTC
Description PWM STEP UP DC-DC CONTROLLER
Published Apr 12, 2007
Detailed Description UNISONIC TECHNOLOGIES CO., LTD L3380 PWM STEP UP DC-DC CONTROLLER DESCRIPTION The L3380 is PWM step up DC-DC switching c...
Datasheet PDF File L3380 PDF File

L3380
L3380

Overview
UNISONIC TECHNOLOGIES CO.
, LTD L3380 PWM STEP UP DC-DC CONTROLLER DESCRIPTION The L3380 is PWM step up DC-DC switching controller that operates from 0.
9V.
The low start up input voltage makes L3380 specially designed for powering portable equipment from one or two cells battery packs.
This device consist of a soft start circuit, a reference voltage source, an error amplifier, an oscillator, a phase compensation, a PWM controller and an output drive circuit for driving external power transistor.
Additionally, a chip enable feature is provided to power down the converter for extended battery life.
The device features a voltage mode PWM control loop, providing stable and high efficiency operation over a broad load current range.
2 1 CMOS IC 3 5 4 SOT-25 *Pb-free plating product number: L3380L FEATURES * 0.
9V low start-up Input voltage at 1mA load * Low operation current * 0.
5uA low shutdown current * Fix requency PWM at 100KHZ www.
DataSheet4U.
com * Built in PWM switching control circuit ,duty ratio is 0~83% * Output voltage:0.
1V step setting is available between 2.
0V and 6.
5V * Soft start time: 6ms * Shutdown function APPLICATIONS *Portable devices *Electronic games *Portable audio (MP3) *Personal digital assistant (PDA) *Digital still cameras(DSC) *Camcorders *White LED driver *Single and dual-cell battery operated products ORDERING INFORMATION Order Number Normal Lead Free Plating L3380-xx-AF5-R L3380L-xx-AF5-R Package SOT-25 Packing Tape Reel L3380L-xx-AF5-R (1)Packing Type (2)Package Type (3)Output Voltage Code (4)Lead Plating (1) R: Tape Reel (2) AF5: SOT-25 (3) xx: refer to Marking Information (4) L: Lead Free Plating , Blank: Pb/Sn www.
unisonic.
com.
tw Copyright © 2006 Unisonic Technologies Co.
, Ltd 1 of 9 QW-R502-099,A L3380 MARKING INFORMATION PACKAGE VOLTAGE CODE 18:1.
8V 21:2.
1V 25:2.
5V 27:2.
7V 30:3.
0V 33:3.
3V 40:4.
0V 50:5.
0V MARKING 3 2 1 CMOS IC SOT-25 H0 Voltage Code Lead Plating 4 5 PIN DESCRIPTION PIN 1 2 3 4 5 NAME SHUTDOWN VOUT NC VSS ...


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