Analog Devices Inc

LT3070® Linear Regulator

Analog Devices' 5 A, low noise, programmable output, 85 mV dropout linear regulator

Image of Analog Devices' LT3070 Linear RegulatorADI's LT3070 is a low voltage, UltraFast transient response linear regulator. The device supplies up to 5 A of output current with a typical dropout voltage of 85 mV. A 0.01 µF reference bypass capacitor decreases output voltage noise to 25 µVRMS. The LT3070's high bandwidth permits the use of low ESR ceramic capacitors, saving bulk capacitance and cost. The LT3070's features make it ideal for high performance FPGAs, microprocessors, or sensitive communication supply applications. Diagram

Features
  • Output current: 5 A
  • Dropout voltage: 85 mV (typ.)
  • Digitally programmable VOUT: 0.8 V to 1.8 V
  • Digital output margining: ±1%, ±3%, or ±5%
  • Low output noise: 25 µVRMS (10 Hz to 100 kHz)
  • Parallel multiple devices for 10 A or more
  • Precision current limit: ±20%
  • ±1% accuracy over line, load, and temperature
  • 28-lead (4 mm × 5 mm × 0.75 mm) QFN package
  • Stable with low ESR ceramic output capacitors (15 µF minimum)
  • High frequency PSRR: 30 dB at 1 MHz
  • Enable function turns output ON / OFF
  • VIOC pin controls buck converter to maintain low power dissipation and optimize efficienc
  • PWRGD / UVLO / thermal shutdown flag
  • Current limit with foldback protection
  • Thermal shutdown
Applications
  • FPGA and DSP supplies
  • ASIC and microprocessor supplies
  • Servers and storage devices
  • Post buck regulation and supply isolation

Demo Board

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
EVAL BOARD FOR LT3070DC1433AEVAL BOARD FOR LT30700 - Immediate$786.16View Details

LT3070 Linear Regulator

ImageManufacturer Part NumberDescriptionNumber of RegulatorsVoltage - Input (Max)Available QuantityPrice
IC REG LINEAR POS PROG 5A 28-QFNLT3070EUFD#PBFIC REG LINEAR POS PROG 5A 28-QFN13V1486 - Immediate$104.13View Details
IC REG LINEAR POS PROG 5A 28-QFNLT3070MPUFD#PBFIC REG LINEAR POS PROG 5A 28-QFN13V76 - Immediate$221.11View Details
IC REG LINEAR POS PROG 5A 28-QFNLT3070EUFD#TRPBFIC REG LINEAR POS PROG 5A 28-QFN13V3843 - Immediate$104.13View Details
IC REG LINEAR POS PROG 5A 28-QFNLT3070IUFD#PBFIC REG LINEAR POS PROG 5A 28-QFN13V675 - Immediate$114.92View Details
IC REG LINEAR POS PROG 5A 28-QFNLT3070IUFD#TRPBFIC REG LINEAR POS PROG 5A 28-QFN13V873 - Immediate$114.92View Details
Published: 2013-10-11

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LT3070 - 5A, Low Noise, Programmable Output, 85mV Dropout Linear Regulator Analog Devices' low voltage, UltraFast transient response linear regulator that supplies up to 5A of output current with a typical dropout voltage of 85mV.