Datasheet LT3086 (Analog Devices) - 34

LT3086
Typical applicaTion Paralleling Two Regulators for 5V, 4.2A with Cable Drop Compensation (CDC)
CABLE RLINE1 VIN 6.4V TO 15V 10µF VOUT 10µF IN SHDN SHDN IN FOR R OUT OUT WIRE = 0.2Ω LT3086 10µF RSET 10µF LT3086 MASTER 90.9k + 1.1k VTEMP(MASTER) 1% SLAVE VTEMP(SLAVE) 10mV/°C TEMP SET SET TEMP 10mV/°C VLOAD 25°C = 250mV R 25°C = 250mV CDC 5V AT 1% LOAD 4.2A CDC TRACK I V MON ILIM(MASTER) I 0.7V AT 4.2A MON ILIM ILIM GND RMON RMON GND 332Ω 332Ω 1% 1% RLINE2 3086 TA13 R R MON •RSET CDC = (X+1)•3000•RWIRE RWIRE =RLINE1+RLINE2 WHERE X =NUMBER OF SLAVES
relaTeD parTs PART NUMBER DESCRIPTION COMMENTS
LT1764/ 3A, Fast Transient Response, Low 340mV Dropout Voltage, Low Noise: 40μVRMS, VIN: 2.7V to 20V, TO-220 and DD Packages, -A LT1764A Noise LDO Version Stable Also with Ceramic Capacitors LT1963/ 1.5A, Low Noise, Fast Transient 340mV Dropout Voltage, Low Noise: 40μVRMS, VIN: 2.5V to 20V, -A Version Stable with Ceramic LT1963A Response LDO Capacitors, TO-220, DD-Pak, SOT-223 and SO-8 Packages LT1965 1.1A, Low Noise, Low Dropout 310mV 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 145mV Dropout Voltage, VIN: 0.9V to 10V, VOUT: 0.2V to 9.5V, Stable with Low ESR, Ceramic Regulator Output Capacitors, 16-Pin DFN (5mm × 3mm) and 16-Lead MSOP Packages LT3070 5A, Low Noise, Programmable VOUT, 85mV Dropout Voltage, Digitally Programmable VOUT: 0.8V to 1.8V, Digital Output Margining: 85mV Dropout Linear Regulator with ±1%, ±3% or ±5%, Low Output Noise: 25μVRMS; Directly Parallelable, Stable with Low ESR Digital Margining Ceramic Output Capacitors (15μF Minimum), 28-Lead 4mm × 5mm QFN Package LT3071 5A, Low Noise, Programmable VOUT, 85mV Dropout Voltage, Digitally Programmable VOUT: 0.8V to 1.8V, Analog Margining: ±10%, Low 85mV Dropout Linear Regulator with Output Noise: 25μVRMS; Directly Parallelable, IMON Output Current Monitor, Stable with Low ESR Analog Margining Ceramic Output Capacitors (15μF Minimum), 28-Lead 4mm × 5mm QFN Package LT3080/ 1.1A, Parallelable, Low Noise, Low 300mV Dropout Voltage (2-Supply Operation), Low Noise: 40μVRMS, VIN: 1.2V to 36V, VOUT: 0V LT3080-1 Dropout Linear Regulator to 35.7V, Current-Based Reference with 1-Resistor VOUT Set; Directly Parallelable (No Op Amp Required), Stable with Ceramic Capacitors; TO-220, DD-Pak, SOT-223, MSOP and 3mm × 3mm DFN-8 Packages; -1 Version Has Integrated Internal Ballast Resistor LT3081 1.5A, Single Resistor Rugged Linear Extended Safe Operating Area, VIN: 1.2V to 36V, VOUT: 0V to 34.5V, Current-Based Reference, Regulator with Monitors Programmable Current Limit, Output Current and Temperature Monitors LT3083 3A, Parallelable, Low Noise, Low 310mV Dropout Voltage (2-Supply Operation), Low Noise: 40μVRMS, VIN: 1.2V to 23V, VOUT: Dropout Linear Regulator 0V to 22.6V, Current-Based Reference with 1-Resistor VOUT Set, Directly Parallelable (No Op Amp Required), Stable with Ceramic Capacitors; TO-220, DD-Pak, TSSOP, 4mm × 4mm DFN-12 Packages LT3085 500mA, Parallelable, Low Noise, 275mV Dropout (2-Supply Operation), Low Noise: 40μVRMS, VIN: 1.2V to 36V, VOUT: 0V to 35.7V, Low Dropout Linear Regulator 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 3086fb 34 LT 0816 REV B • PRINTED IN USA Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95 F0o3r 5m-o 7 r4e in 17 formation www.linear.com/LT3086 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com/LT3086 LINEAR TECHNOLOGY CORPORATION 2013 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Typical Applications Package Description Revision History Typical Application Related Parts