DC-DC Switching Buck (Step Down) Regulator, Adjustable, 4.3V-60Vin, 1.2V-16Vout, 3Aout, MSOP-16

LT3995EMSE#PBF - DC-DC Switching Buck (Step Down) Regulator, Adjustable, 4.3V-60Vin, 1.2V-16Vout, 3Aout, MSOP-16

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Product Overview

The LT3995EMSE#PBF is a 2MHz monolithic step-down Switching Regulator with 2.7µA quiescent current accepts a wide input voltage range up to 60V. Low ripple Burst Mode® operation maintains high efficiency at low output currents while keeping the output ripple below 15mV in a typical application. The LT3995 can supply up to 3A of load current and has current limit fold back to limit power dissipation during short-circuit. A low dropout voltage of 500mV is maintained when the input voltage drops below the programmed output voltage, such as during automotive cold crank. An internally compensated current mode topology is used for fast transient response and good loop stability. A high efficiency 85mR switch is included on the die along with a boost Schottky diode and the necessary oscillator, control and logic circuitry. A capacitor on the SS pin provides a controlled inrush current (soft-start). A power good flag signals when VOUT reaches 91.6% of the programmed output voltage.
  • Ultralow quiescent current (2.7µA IQ at 12VIN to 3.3VOUT)
  • Low ripple Burst Mode® operation (output ripple <15mVP-P)
  • Excellent start-up and dropout performance
  • Adjustable 200kHz to 2MHz switching frequency
  • Synchronizable between 250kHz to 2MHz
  • Accurate programmable under-voltage lockout
  • Low shutdown current (IQ = 700nA)
  • Power good flag
  • Soft-start capability
  • Thermal shutdown protection
  • Current limit fold back with SS override
  • Saturating switch design (85mR on resistance)


Automotive, Portable Devices, Industrial, Power Management

Product Information

Buck (Step Down)
Cut Tape
MSL 1 - Unlimited
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