Datasheet LT1086 (Analog Devices)
| Manufacturer | Analog Devices |
| Description | 1.5A Low Dropout Positive Regulators Adjustable and Fixed 2.85V, 3.3V, 3.6V, 5V, 12V |
| Pages / Page | 16 / 1 — FEATURES. DESCRIPTIO. APPLICATIO S. TYPICAL APPLICATIO. LT1086 Dropout … |
| File Format / Size | PDF / 227 Kb |
| Document Language | English |
FEATURES. DESCRIPTIO. APPLICATIO S. TYPICAL APPLICATIO. LT1086 Dropout Voltage. 5V to 3.3V Regulator
Model Line for this Datasheet
- LT1086CM#PBF LT1086CM#PBF LT1086CM#TRPBF LT1086CM#TRPBF LT1086CM-3.3#PBF LT1086CM-3.3#PBF LT1086CM-3.3#TRPBF LT1086CM-3.3#TRPBF LT1086CM-3.6#PBF LT1086CM-3.6#PBF LT1086CM-3.6#TRPBF LT1086CM-3.6#TRPBF LT1086CT#PBF LT1086CT#PBF LT1086CT-12#PBF LT1086CT-12#PBF LT1086CT-2.85#PBF LT1086CT-2.85#PBF LT1086CT-3.3#PBF LT1086CT-3.3#PBF LT1086CT-3.6#PBF LT1086CT-3.6#PBF LT1086CT-5#PBF LT1086CT-5#PBF LT1086IM#PBF LT1086IM#PBF LT1086IM#TRPBF LT1086IM#TRPBF LT1086IM-3.3#PBF LT1086IM-3.3#PBF LT1086IM-3.3#TRPBF LT1086IM-3.3#TRPBF LT1086IT#36PBF LT1086IT#36PBF LT1086IT#PBF LT1086IT#PBF LT1086IT-12#PBF LT1086IT-12#PBF LT1086IT-3.3#PBF LT1086IT-3.3#PBF LT1086IT-5#PBF LT1086IT-5#PBF
Text Version of Document
LT1086 Series 1.5A Low Dropout Positive Regulators Adjustable and Fixed 2.85V, 3.3V, 3.6V, 5V, 12V
U FEATURES DESCRIPTIO
■ 3-Terminal Adjustable or Fixed The LT ®1086 is designed to provide up to 1.5A output 2.85V, 3.3V, 3.6V, 5V, 12V current. All internal circuitry is designed to operate down ■ Output Current of 1.5A (0.5A for LT1086H) to 1V input-to-output differential and the dropout voltage ■ Operates Down to 1V Dropout is fully specified as a function of load current. Dropout is ■ Guaranteed Dropout Voltage at Multiple Current Levels guaranteed at several operating points up to a maximum ■ Line Regulation: 0.015% of 1.5V at maximum output current. Dropout decreases at ■ Load Regulation: 0.1% lower load currents. On-chip trimming adjusts the refer- ■ 100% Thermal Limit Functional Test ence/ouput voltage to 1%. Current limit is also trimmed, ■ Ripple Rejection >75dB minimizing the stress on both the regulator and power ■ Available in 3-Pin TO-220 and 3-Pin DD Packages source circuitry under overload conditions.
U
The LT1086 is pin compatible with older 3-terminal adjust-
APPLICATIO S
able regulators. A minimum 10µF output capacitor is required on these devices. ■ SCSI-2 Active Terminator The LT1086 offers excellent line and load regulation speci- ■ High Efficiency Linear Regulators fications and ripple rejection exceeds 75dB even at the ■ Post Regulators for Switching Supplies maximum load current of 1.5A. The LT1086 is floating ■ Constant Current Regulators architecture with a composite NPN output stage. All of the ■ Battery Chargers quiescent current and the drive current for the output ■ Microprocessor Supply stage flows to the load increasing efficiency. The LT1086 is available in a 3-pin TO-220 package and a space-saving surface mountable 3-pin DD package. , LTC and LT are registered trademarks of Linear Technology Corporation.
U TYPICAL APPLICATIO LT1086 Dropout Voltage
2 INDICATES GUARANTEED TEST POINT
5V to 3.3V Regulator
–55°C ≤ TJ ≤ 150°C 0°C ≤ TJ ≤ 125°C VIN ≥ 4.75V IN LT1086-3.3 OUT 3.3V AT 1.5A GND 1 10µF* 10µF T TANTALUM TANTALUM J = – 55°C TJ = 25°C TJ = 150°C LT1086 • TA01 *MAY BE OMITTED IF INPUT SUPPLY IS WELL MINIMUM INPUT/OUTPUT DIFFERENTIAL (V) 0 BYPASSED WITHIN 2" OF THE LT1086 0 0.5 1 1.5 OUTPUT CURRENT (A) LT1086 • TA02 sn1086 1086ffs 1
U FEATURES DESCRIPTIO
■ 3-Terminal Adjustable or Fixed The LT ®1086 is designed to provide up to 1.5A output 2.85V, 3.3V, 3.6V, 5V, 12V current. All internal circuitry is designed to operate down ■ Output Current of 1.5A (0.5A for LT1086H) to 1V input-to-output differential and the dropout voltage ■ Operates Down to 1V Dropout is fully specified as a function of load current. Dropout is ■ Guaranteed Dropout Voltage at Multiple Current Levels guaranteed at several operating points up to a maximum ■ Line Regulation: 0.015% of 1.5V at maximum output current. Dropout decreases at ■ Load Regulation: 0.1% lower load currents. On-chip trimming adjusts the refer- ■ 100% Thermal Limit Functional Test ence/ouput voltage to 1%. Current limit is also trimmed, ■ Ripple Rejection >75dB minimizing the stress on both the regulator and power ■ Available in 3-Pin TO-220 and 3-Pin DD Packages source circuitry under overload conditions.
U
The LT1086 is pin compatible with older 3-terminal adjust-
APPLICATIO S
able regulators. A minimum 10µF output capacitor is required on these devices. ■ SCSI-2 Active Terminator The LT1086 offers excellent line and load regulation speci- ■ High Efficiency Linear Regulators fications and ripple rejection exceeds 75dB even at the ■ Post Regulators for Switching Supplies maximum load current of 1.5A. The LT1086 is floating ■ Constant Current Regulators architecture with a composite NPN output stage. All of the ■ Battery Chargers quiescent current and the drive current for the output ■ Microprocessor Supply stage flows to the load increasing efficiency. The LT1086 is available in a 3-pin TO-220 package and a space-saving surface mountable 3-pin DD package. , LTC and LT are registered trademarks of Linear Technology Corporation.
U TYPICAL APPLICATIO LT1086 Dropout Voltage
2 INDICATES GUARANTEED TEST POINT
5V to 3.3V Regulator
–55°C ≤ TJ ≤ 150°C 0°C ≤ TJ ≤ 125°C VIN ≥ 4.75V IN LT1086-3.3 OUT 3.3V AT 1.5A GND 1 10µF* 10µF T TANTALUM TANTALUM J = – 55°C TJ = 25°C TJ = 150°C LT1086 • TA01 *MAY BE OMITTED IF INPUT SUPPLY IS WELL MINIMUM INPUT/OUTPUT DIFFERENTIAL (V) 0 BYPASSED WITHIN 2" OF THE LT1086 0 0.5 1 1.5 OUTPUT CURRENT (A) LT1086 • TA02 sn1086 1086ffs 1
