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LT3071

Category:Voltage regulator
Product Name:5A, low noise, programmable output, 85mV dropout linear regulator with analog margining
Manufacturers:lt
Production Batch Number:11+
Encapsulation:QFN-28
Stock Status:There is stock
Stock Quantity:2000
Minimum order quantity: 1
Details:

Product introduction

The LT3071 features 5A, low noise, programmable output, 85mV dropout linear regulation with analog margining

peculiarity

Output current: 5A

Dropout Voltage: 85mV Typical

Digitally programmable V_OUT: 0.8V to 1.8V

Analog output margining: ±10% range

Low output noise: 25μV_RMS(10Hz to 100kHz)

Multiple devices can be used in parallel to provide outputs of 10A or more

Precision Current Limit: ±20%

Output current monitor: I_MON= I_OUT/2500

Provides ±1% accuracy over voltage, load, and temperature

Stable with low ESR ceramic output capacitors with a minimum capacitance of 15μF

High frequency PSRR: 30dB at 1MHz

The enable function is responsible for turning the output on/off

The VIOC pin controls the step-down converter to maintain low power consumption and optimize efficiency

PWRGD (Power Good) / UVLO (Undervoltage Lockout) / Thermal Shutdown Flag

Current limit with foldback protection

Thermal shutdown

28-pin (4mm x 5mm x 0.75mm) QFN package
description

LT^®The 3071 is a low voltage, UltraFast^TMTransient response linear regulator. The device can deliver up to 5A of output current and a typical dropout voltage of 85mV. A 0.01μF reference bypass capacitor reduces output voltage noise to 25μV_RMS。 The LT3071's high bandwidth allows the use of low ESR ceramic capacitors, eliminating bulk capacitance and saving cost. The LT3071 features make it ideal for high performance FPGAs, microprocessors or sensitive communications power applications.

The output voltage can be selected digitally (selectable from 0.8V to 1.8V in 50mV increments). An analog margin adjustment feature allows the user to regulate the system output voltage over a continuous range of ±10%. The IC contains a unique tracking function that controls a step-down regulator that supplies the LT3071's inputs. This tracking function is used to drive a step-down regulator designed to maintain the LT3071's input voltage at V_OUT+300mV, thus minimizing power consumption.

The device's internal protection features include UVLO, reverse current protection, precision current limit with power foldback, and thermal shutdown. The LT3071 regulator is available in a thermally enhanced 28-lead, 4mm × 5mm QFN package.

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FPGA and DSP power supplies

ASIC and microprocessor power supplies

Servers and storage

Post buck regulation and power isolation

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LT3071

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