LT1085D-50 [FCI-CONNECTOR]

Regulator;


型号：	LT1085D-50
厂家：	FCI CONNECTOR
描述：	Regulator
文件：	总5页 (文件大小：5853K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

LT1085 3.0A LOW DROPOUT POSITIVE REGULATOR

TO-3P

Features:

Output Current - 3A

Maximum Input Voltage – 12V

Adjustable Output Voltage or Fixed

1.5V, 1.8V, 2.5V, 2.85V, 3.3V, 3.6V, 5V

Current Limiting and Thermal Protection

Standard 3-Pin Power Packages

PIN 3: Vin

PIN 1: GND

PIN 2: Vout

Applications:

TO-220

Post Regulator for Switching DC/DC Converter

High Efficiency Liner Regulators

Battery Charger

Pin1: Gnd

Pin2:Vout

Pin3: Vin

Operating Ratings:

Junction Temperature Range: -10°C to 125°C

Ordering Information:

Parameter Number

LT1085

LT1085T

LT1085D

Package

TO-3P

TO-220

TO-252

Block Diagram

LT1085 3.0A LOW DROPOUT POSITIVE REGULATOR

Electrical Characteristics:

Typicals and limits appearing in normal type apply for Tj=25

Limits appearing in Boldface type apply over the entire junction temperature range for operation

Symbol

Parameter

Conditions

Min

Typ

Max

Units

Vref

Reference Voltage Io=10mA, Tj=25C, (Vin-Vout)=1.5V 1.225

1.250

1.275

Ripple rejection F=120Hz, Cout=25uF, Tantalum, Io=3A, Vin=Vout+3A

I_{O =10mA,Vout+1.5V<Vin<12V,Tj=25C}

Vin=3.3, 0mA<Io<3A. Tj=25C

Line Regu

LT1085-xxx

LT1085-Adj

0.2

1.0

Load Regu

Note 1, 2

Output Regu

I_O=10mA,Tj=25C, 3V<Vin<12V 1.470 1.500

1.530

LT1085-1.5

LT1085-1.8

Vin=3.0V, 0mA<Io<3A. Tj=25C

Note 1, 2

Load Regu

1.764 1.800

1.836

Output Regu

I_O=10mA,Tj=25C,3.3V<Vin<12V

Vin=3.3V, 0mA<Io<3A. Tj=25C

Load Regu

Note 1, 2

Output Regu

I_O=10mA,Tj=25C, 4V<Vin<12V

2.450 2.500

2.55

Vin=4.0V, 0mA<Io<3A. Tj=25C

LT1085-2.5

LT1085-3.3

Load Regu

Note 1, 2

3.235

4.9

3.3

3.365

Output Regu

I_O=10mA,Tj=25C, 4.8V<Vin<12V

Vin=5.0V, 0mA<Io<3A. Tj=25C

Load Regu

Note 1, 2

5.0

5.10

Output Regu

I_O=10mA,Tj=25C, 6.5V<Vin<12V

Vin=8.0V, 0mA<Io<3A. Tj=25C

LT1085-5.0

Load Regu

Note 1, 2

1.3

1.4

Dropout Voltage

Io=3.0A( Vout=1% Vout)

3.1

Current Limite

Vin-Vout=5V

Mini Load Current

Temperature Stability Io=10mA

0C<Tj<125C

5.0

0.5

10.0

Thermal Regulation

Ta=25C, 30ms pulse

0.008

0.04

%/W

C/W

ThjA

ThjC

ThermalResisityJunction-Amient

ThermalResisityJunction-Case

Note1: See Thermal Regulation specifications for changes in output vol. due to heating effects. line and

load regulation are measured at a constant junction Temp. by low duty cycle pulse testing. Load

regulation ismeasured at the output lead=1/8" from the package

Note2: Line and load Regulation are guaranteed up to the max power dissipation of 15W power dissipation

is determined by the difference between input and output and the current. Guaranteed max power

dissipation will not be available over the full input/output range

Note3: Quiescent current is defined as the mini output current required in maintaining regulation. At 12V input

/output differential the device is quaranteed to regulate if the output current is greater than 10mA

LT1085 3.0A LOW DROPOUT POSITIVE REGULATOR

LT1085

LT1085 3.0A LOW DROPOUT POSITIVE REGULATOR