LT3070 Linear Regulator


Linear Technology’s 5A, low noise, programmable output, 85mV dropout linear regulator

Linear Technology's LT®3070 is a low voltage, UltraFast™ transient response linear regulator. The device supplies up to 5A of output current with a typical dropout voltage of 85mV. A 0.01µF reference bypass capacitor decreases output voltage noise to 25µVRMS. 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

LT3070 - 5A, Low Noise, Programmable Output, 85mV Dropout Linear Regulator
Features
  • Output current: 5A
  • Dropout voltage: 85mV typical
  • Digitally programmable VOUT : 0.8V to 1.8V
  • Digital output margining: ±1%, ±3% or ±5%
  • Low output noise: 25µVRMS (10Hz to 100kHz)
  • Parallel multiple devices for 10A or more
  • Precision current limit: ±20%
  • ±1% accuracy over line, load, and temperature
  • Stable with low ESR ceramic output capacitors (15µF minimum)
  • High frequency PSRR: 30dB at 1MHz
  • 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
  • 28-lead (4mm × 5mm × 0.75mm) QFN package
Applications
  • FPGA and DSP supplies
  • ASIC and microprocessor supplies
  • Servers and storage devices
  • Post buck regulation and supply isolation


RoHS Compliant

LT3070

Manufacturer Part Number Description Available Quantity Datasheets
LT3070EUFD#PBF IC REG LDO ADJ 5A 28QFN 3221