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LM1085 データシート(PDF) 1 Page - HTC Korea TAEJIN Technology Co.

部品番号 LM1085
部品情報  3A L.D.O. VOLTAGE REGULATOR (Adjustable & Fixed)
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メーカー  HTC [HTC Korea TAEJIN Technology Co.]
ホームページ  http://www.htckorea.co.kr
Logo HTC - HTC Korea TAEJIN Technology Co.

LM1085 データシート(HTML) 1 Page - HTC Korea TAEJIN Technology Co.

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3A L.D.O. VOLTAGE REGULATOR (Adjustable & Fixed)
LM1085
FEATURES
Output Current of 3A
Fast Transient Response
0.04% Line Regulation
0.2% Load Regulation
Internal Thermal and Current Limiting
Adjustable or Fixed Output Voltage(1.5V, 1.8V, 2.5V, 3.3V, 5.0V)
Surface Mount Package TO-263 3LD & TO-252 3L
100% Thermal Limit Burn-in
Low Dropout Voltage 1.5V at 3A Output Current
Moisture Sensitivity Level 3
APPLICATIONS
1. ADJ / GND 2. OUTPUT 3. INPUT
High Efficiency Linear Regulators / Power Supply
* Heatsink surface connected to Pin 2.
High Efficiency "Green" Computer Systems
Constant Current Regulators
ORDERING INFORMATION
Portable Instrumentation
SMPS Post-Regulator
Adjustable Power Supplies
Powering VGA & Sound Card
(X.X=VOUT=1.5V, 1.8V, 2.5V, 3.3V, 5.0V, ADJ)
DESCRIPTION
The LM1085 series of positive adjustable and fixed regulators are designed to provide 3A with high efficient.
All internal circuitry is designed to operate down to 1.5V input to output differential.
On-chip trimming adjusts the reference voltage to 1%.
It's low dropout voltage and fast transient response make it ideal for low voltage microprocessor applications.
Internal current and thermal limiting provides protection against any overload condition that would create
excessive junction temperature.
TEST & TYPICAL APPLICATION CIRCUIT
Note
(1) C1 needed if device is far away from filter capacitors.
VREF=VOUT-VADJ=1.25V(Typ.)
IADJ=55㎂(Typ.)
(2) C2 minimum value required for stability
VOUT = VREF x (1+RF2/RF1) + IADJ x RF2
Nov. 2010-Rev. 1.4
HTC
Device
Package
LM1085R-X.X
TO-263 3LD
- 1 -
LM1085RS-X.X
TO-252 3LD
LM1085-3.3V
LM1085-ADJ
TO-263 PKG
TO-252 PKG


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