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LINEAR TECHNOLOGY  LT3972EDD#PBF  DC-DC Switching Buck (Step Down) Regulator, Adjustable, 3.6V-33Vin, 790mV-30Vout, 3.5Aout, DFN-10

LINEAR TECHNOLOGY LT3972EDD#PBF
Technical Data Sheet (337.92KB) EN See all Technical Docs

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Product Overview

The LT3972EDD#PBF is an adjustable frequency monolithic buck Switching Regulator accepts input voltage up to 33V (62V maximum). A high efficiency 95mΩ switch is included on the die along with a boost Schottky diode and the necessary oscillator, control and logic circuitry. Current-mode topology is used for fast transient response and good loop stability. Low ripple Burst Mode® operation maintains high efficiency at low output current while keeping output ripple below 15mV in a typical application. In addition, the LT3972 can further enhance low output current efficiency by drawing bias current from the output when VOUT is above 3V. Shutdown reduces input supply current to less than 1μA while a resistor and capacitor on the RUN/SS pin provide a controlled output voltage ramp (soft-start). A power good flag signals when VOUT reaches 91% of the programmed output voltage.
  • Power good flag
  • Thermal protection
  • Soft-start capability
  • Overvoltage lockout protects circuit through 62V transients
  • Synchronizable between 250kHz to 2MHz

 

Product Information

Input Voltage Min:
3.6V
Input Voltage Max:
33V
No. of Outputs:
1Outputs
DC / DC Converter IC Case:
DFN
No. of Pins:
10Pins
Output Current:
3.5A
Output Voltage Min:
790mV
Output Voltage Max:
30V
Switching Frequency:
2.4MHz
Topology:
Buck (Step Down)
Operating Temperature Max:
125°C
Packaging:
Cut Tape
Product Range:
-
Automotive Qualifications Standard:
-
MSL:
MSL 1 - Unlimited
Operating Temperature Min:
-40 °C
Primary Input Voltage:
33 V
SVHC:
No SVHC (17-Dec-2015)
Output Voltage:
30 V

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Applications

  • Automotive;
  • Power Management;
  • Industrial

Legislation and Environmental

Moisture Sensitivity Level:
MSL 1 - Unlimited
RoHS Compliant:
Yes
Authorized Distributor

Substitutes