Adjustable B1085 Description Linear B1085 Monolithic po

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Adjustable B1085 Description Linear B1085 Monolithic po

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3.0A Dropout Voltage Regulator
Adjustable
B1085
Description
Linear B1085 Monolithic power 3.0A Adjustable fixed voltage regulator that easy with minimum external components. internal circuitry designed operate down input output differential dropout voltage fully specified function load current. Dropout guaranteed maximum 1.5V maximum output current. Current limit trimmed, minimizing stress both regulator power source circuitry under overload conditions. suitable applications requiring well-regulated positive output voltage with input-output differential voltage. B1085 Outstanding features include full power usage 3.0Amp load current internal current limiting thermal shutdown. output capacitor required these devices; ever, this usually included most regulator design. B1085 offered 3-pin TO-220, TO-263 TO-252 packages compatible with other terminal regulators. dropout Regulator refer BL1084 data sheet.
Features
Adjustable Output Down 1.2V Output Current 3.0A Dropout Voltage 1.0V Typ. 0.015% Line Regulation 0.01% Load Regulation Current Thermal Limiting Standard 3-Terminal Cost TO-220, Packages Similar industry Standard LT1085
Applications
Constant Current Regulators SMPS Post Regulator High Efficiency Linear Regulator High Efficiency Linear Power Supplies Battery Charger Adjustable Power Supplies
Connection
Ordering Information
Devices
B1085T B1085S B1085D
TO-263-3 TO-252
Package
TO-220 TO-263 TO-252
Temp.
ADJ/
Front View View
Linear,
2478 Armstrong Street, Livermore, 94550 Tel: (925) 989-7144, Fax: (925) 940-9556
www.baylinear.com
B1085
Absolute Maximum Rating
Parameter
Maximum Input Voltage Power Dissipation Thermal Resistance Junction Case Thermal Resistance Junction Ambient Operating Junction Temperature Range Control Section Power Transistor Storage Temperature Range Lead Temperature (Soldering Sec.)
Symbol
Value
Internally Limited
Unit
°C/W
TSTG TLEAD
Electrical Characteristics
(VIN 4.75V 5.25V; 10mA 3.0Amp, unless otherwise specified) Parameter Symbol Conditions
Reference Voltage 10mA,T= Vin-Vout 10mAIOUTIFULL LOAD 1.5V(Vin-Vout) (Note3) ILOAD 10mA, 1.5V(VIN VOUT) 15V(Vin-Vout) (Vin-Vout)=3V 10mAIOUTIFULL LOAD Over Temperature (Vin-Vout)=5V (Vin-Vout)=25V (Vin-Vout)= 30ms pulse 1000Hrs Over Temp. F=120Hz, CADJ=25µF, COUT=25µF Tantalum IOUT=IFULL LOAD, (Vin-Vout)=3V (Note TO-220 Junction Junction Ambient Package Junction Junction Ambient
1.238 1.225
1.250
1.262 1.270 0.20 0.20 0.50 0.30 0.40 0.02
UNIT
Line Regulation
(line)
0.015 0.035 0.05 0.004
Load Regulation
(LOAD)
Dropout Voltage Current Limit Minimum Load Current Temperature Regulation Long Term Stability Temperature Stability Adjust Current Ripple Rejection Thermal Resistance
IMIN LOAD
°C/W
Note: Output Switch tests performed under pulsed conditions minimize power dissipation
Linear,
2478 Armstrong Street, Livermore, 94550 Tel: (925) 989-7144, Fax: (925) 940-9556
www.baylinear.com
Advance Information- These data sheets contain descriptions products that development. specifications based engineering calculations, computer simulations and/ initial prototype evaluation. Preliminary Information- These data sheets contain minimum maximum specifications that based initial device characterizations. These limits subject change upon completion full characterization over specified temperature supply voltage ranges.
application circuit examples only explain representative applications devices intended guarantee circuit design permit industrial property right other rights execute. Linear takes responsibility problems related industrial property right resulting from contents shown data book. Typical parameters vary different applications. Customer's technical experts must validate operating parameters including Typical" each customer application.
LIFE SUPPORT NUCLEAR POLICY Linear products authorized should used within life support systems which intended surgical implants into body support sustain life, aircraft, space equipment, submarine, nuclear facility applications without specific written consent Linear President.
Linear,
2478 Armstrong Street, Livermore, 94550 Tel: (925) 989-7144, Fax: (925) 940-9556
www.baylinear.com

Adjustable B1085 Description Linear B1085 Monolithic po

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