Datasheet LT3081 (Analog Devices) - 32

LT3081
Typical applicaTion High Efficiency Adjustable Supply
VIN 6.3V TO VIN BD 36V RUN/SS BOOST 0.47µF VOUT LT3680 0V TO V IN OUT C SW 6.8µH LT3081 25V, 15k RT 47µF 590k 6.04k 22µF 1.5A MBRA340T3 6V 63.4k PG IMON TEMP SET ILIM 1000pF MTD2955 1k SYNC GND FB 1k 500k 15k 0.1µF 10k 1µF 1k 2N3904 3081 TA13 1µF CMDSH-4E
relaTeD parTs PART NUMBER DESCRIPTION COMMENTS
LT1185 3A Negative Low Dropout Regulator VIN: –4.5V to –35V, 0.8V Dropout Voltage, DD-Pak and TO-220 Packages LT1764/ 3A, Fast Transient Response, 340mV Dropout Voltage, Low Noise: 40µVRMS, VIN = 2.7V to 20V, TO-220, TSSOP and DD-Pak, LT1764A Low Noise LDO LT1764A Version Stable Also with Ceramic Capacitors LT1963/ 1.5A Low Noise, Fast Transient 340mV Dropout Voltage, Low Noise: 40µVRMS, VIN = 2.5V to 20V, LT1963A Version Stable with LT1963A Response LDO Ceramic Capacitors, TO-220, DD, TSSOP, SOT-223 and SO-8 Packages LT1965 1.1A, Low Noise, Low Dropout 290mV Dropout Voltage, Low Noise: 40µVRMS, VIN: 1.8V to 20V, VOUT: 1.2V to 19.5V, Stable with Linear Regulator Ceramic Capacitors, TO-220, DD-Pak, MSOP and 3mm × 3mm DFN Packages LT3022 1A, Low Voltage, VLDO Linear VIN: 0.9V to 10V, Dropout Voltage: 145mV Typical, Adjustable Output (VREF = VOUT(MIN) = 200mV), Regulator Stable with Low ESR, Ceramic Output Capacitors, 16-Pin DFN (5mm × 3mm) and 16-Lead MSOP Packages LT3070 5A, Low Noise, Programmable Dropout Voltage: 85mV, Digitally Programmable VOUT: 0.8V to 1.8V, Digital Output Margining: ±1%, VOUT, 85mV Dropout Linear ±3% or ±5%, Low Output Noise: 25µVRMS (10Hz to 100kHz), Parallelable: Use Two for a 10A Output, Regulator with Digital Margining Stable with Low ESR Ceramic Output Capacitors (15µF Minimum), 28-Lead 4mm × 5mm QFN Package LT3071 5A, Low Noise, Programmable Dropout Voltage: 85mV, Digitally Programmable VOUT: 0.8V to 1.8V, Analog Margining: ±10%, VOUT, 85mV Dropout Linear Low Output Noise: 25µVRMS (10Hz to 100kHz), Parallelable: Use Two for a 10A Output, IMON Output Regulator with Analog Margining Current Monitor, Stable with Low ESR Ceramic Output Capacitors (15µF Minimum) 28-Lead 4mm × 5mm QFN Package LT3080/ 1.1A, Parallelable, Low Noise, 300mV Dropout Voltage (2-Supply Operation), Low Noise: 40µVRMS, VIN: 1.2V to 36V, VOUT: 0V to 35.7V, LT3080-1 Low Dropout Linear Regulator Current-Based Reference with 1-Resistor VOUT Set; Directly Parallelable (No Op Amp Required), Stable with Ceramic Capacitors, TO-220, DD-Pak, SOT-223, MS8E and 3mm × 3mm DFN-8 Packages; LT3080-1 Version Has Integrated Internal Ballast Resistor LT3082 200mA, Parallelable, Single Outputs May Be Paralleled for Higher Output, Current or Heat Spreading, Wide Input Voltage Resistor, Low Dropout Linear Range: 1.2V to 40V Low Value Input/Output Capacitors Required: 2.2µF, Single Resistor Sets Output Regulator Voltage 8-Lead SOT-23, 3-Lead SOT-223 and 8-Lead 3mm × 3mm DFN Packages LT3085 500mA, Parallelable, Low Noise, 275mV Dropout Voltage (2-Supply Operation), Low Noise: 40µVRMS, VIN: 1.2V to 36V, Low Dropout Linear Regulator VOUT: 0V to 35.7V, Current-Based Reference with 1-Resistor VOUT Set; Directly Parallelable (No Op Amp Required), Stable with Ceramic Capacitors, MS8E and 2mm × 3mm DFN-6 Packages LT3092 200mA 2-Terminal Programmable Programmable 2-Terminal Current Source, Maximum Output Current = 200mA, Wide Input Voltage Current Source Range: 1.2V to 40V, Resistor Ratio Sets Output Current, Initial Set Pin Current Accuracy = 1%, Current Limit and Thermal Shutdown Protection, Reverse-Voltage Protection, Reverse-Current Protection, 8-Lead SOT-23, 3-Lead SOT-223 and 8-Lead 3mm × 3mm DFN Packages. LT3083 Adjustable 3A Single Resistor Low Noise: 40µVRMS, 50µA Set Pin Current, Output Adjustable to 0V, Wide Input Voltage Range: 1.2V to 23V Low Dropout Regulator (DD-Pak and TO-220), Low Dropout Operation: 310mV (2 Supplies) 3081fc 32 LT 0315 REV C • PRINTED IN USA Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95 F0or3 m 5- o7re 4 in 17 formation www.linear.com/LT3081 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com/LT3081 LINEAR TECHNOLOGY CORPORATION 2014 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Typical Applications Package Description Revision History Typical Application Related Parts