LM1084R-X.X View Datasheet(PDF) - HTC Korea

Part Name

Description

Manufacturer

LM1084R-X.X

5A L.D.O. VOLTAGE REGULATOR (Adjustable & Fixed)

HTC Korea 

5A L.D.O. VOLTAGE REGULATOR (Adjustable & Fixed)

LM1084

FEATURES

● Output Current of 5A

● 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 and TO-252 3L

● 100% Thermal Limit Burn-in

● Low Dropout Voltage 1.5V at 5A Output Current

● Moisture Sensitivity Level 3

TO-263 PKG

TO-252 PKG

APPLICATIONS

● High Efficiency Linear Regulators / Power Supply

● High Efficiency "Green" Computer Systems

● Constant Current Regulators

● Portable Instrumentation

● SMPS Post-Regulator

● Adjustable Power Supplies

● Powering VGA & Sound Card

1. ADJ / GND 2. OUTPUT 3. INPUT

* Heatsink surface connected to Pin 2.

ORDERING INFORMATION

Device

Package

LM1084R-X.X

TO-263 3LD

LM1084RS-X.X

TO-252 3LD

(X.X=VOUT=1.5V, 1.8V, 2.5V, 3.3V, 5.0V, ADJ)

DESCRIPTION

The LM1084 series of positive adjustable and fixed regulators are designed to provide 5A with high efficient.

All internal circuitry is designed to operate down to 1.3V 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

LM1084-3.3V

LM1084-ADJ

Note

(1) C1 needed if device is far away from filter capacitors.

(2) C2 minimum value required for stability.

VREF=VOUT-VADJ=1.25V(Typ.)

IADJ=55㎂(Typ.)

VOUT = VREF x (1+RF2/RF1) + IADJ x RF2

Nov. 2010 - Rev. 1.3.

-1-

HTC

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