B1085

Features:

• Adjustable Output Down to 1.2V
• Output Current of 3.0A
• Low Dropout Voltage 1.0V Typ.
• 0.015% Line Regulation
• 0.01% Load Regulation
• Current & Thermal Limiting
• Standard 3-Terminal Low Cost TO-220,D², D Packages
• Similar to industry Standard LT1085


Application

• Constant Current Regulators
• SMPS Post Regulator
• High Efficiency Linear Regulator
• High Efficiency Linear Power Supplies
• Battery Charger
• Adjustable Power Supplies


Pinout




Specifications

Parameter	Symbol	Value	Unit
Maximum Input Voltage	VIN	30	V
Power Dissipation	PO	Internally Limited	W
Thermal Resistance Junction to Case	JC	3	°C/W
Thermal Resistance Junction to Ambient	JA	50
Operating Junction Temperature Range Control Section Power Transistor	TJ	0 to 125 0 to 150	°C
Storage Temperature Range	TSTG	-65 to 150
Lead Temperature (Soldering 10 Sec.)	TLEAD	300

Description

The Bay Linear B1085 is Monolithic low power 3.0A Adjustable and fixed NPN voltage regulator that are easy to use with minimum external components. All internal circuitry is designed to operate down to 1V input to output differential and the dropout voltage is fully specified as a function of load current. Dropout is guaranteed at a maximum of 1.5V at a maximum output current. Current limit is trimmed, minimizing the stress on both the regulator and power source circuitry under overload conditions. B1085 is suitable for applications requiring a well-regulated positive output voltage with low input-output differential voltage.

The B1085 Outstanding features include full power usage up to 3.0Amp of load current internal current limiting and thermal shutdown. A 10 F output capacitor is required on these new devices; how ever, this is usually included in most regulator design.

The B1085 is offered in a 3-pin TO-220, TO-263 & TO-252 packages compatible with other 3 terminal regulators. For 5A Low dropout Regulator refer to the BL1084 data sheet.