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LINEAR TECHNOLOGY  LT3971EDD#PBF  DC-DC Switching Step Down Regulator, Adjustable, 4.3V-38Vin, 1.19V-30Vout, 1.2Aout, DFN-10

LINEAR TECHNOLOGY LT3971EDD#PBF
Technical Data Sheet (627.79KB) EN See all Technical Docs

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Product Overview

The LT3971EDD#PBF is an adjustable frequency monolithic buck Switching Regulator accepts a wide input voltage range up to 38V. Low quiescent current design consumes only 2.8µA of supply current while regulating with no load. Low ripple Burst Mode® operation maintains high efficiency at low output current while keeping the output ripple below 15mV in a typical application. An internally compensated current-mode topology is used for fast transient response and good loop stability. A high efficiency 0.33Ω switch is included on the die along with a boost Schottky diode and the necessary oscillator, control and logic circuitry. An accurate 1V threshold enable pin can be used to shut down the LT3971, reducing the input supply current to 700nA. A capacitor on the SS pin provides a controlled inrush current (soft-start). A power good flag signals when VOUT reaches 91% of the programmed output voltage.
  • Fast transient response
  • Power good flag
  • Soft-start capability
  • Internal compensation
  • Accurate 1V enable pin threshold

 

Product Information

Input Voltage Min:
4.3V
Input Voltage Max:
38V
No. of Outputs:
1Outputs
DC / DC Converter IC Case:
DFN
No. of Pins:
10Pins
Output Current:
1.2A
Output Voltage Min:
1.19V
Output Voltage Max:
30V
Switching Frequency:
2MHz
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:
12 V
SVHC:
No SVHC (17-Dec-2015)
Output Voltage:
30 V

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Applications

  • Automotive;
  • Portable Devices;
  • Industrial;
  • Power Management

Legislation and Environmental

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

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