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LINEAR TECHNOLOGY  LT3976IUDD#PBF  DC-DC Switching Buck (Step Down) Regulator, Adjustable, 4.3V-40Vin, 1.2V-39.2Vout, 5Aout, QFN-24

LINEAR TECHNOLOGY LT3976IUDD#PBF
LINEAR TECHNOLOGY LT3976IUDD#PBF
Manufacturer Part No:
LT3976IUDD#PBF
Order Code:
2293103
Technical Datasheet:
See all Technical Docs
LINEAR TECHNOLOGY LT3976IUDD#PBF
LINEAR TECHNOLOGY LT3976IUDD#PBF

Image is for illustrative purposes only. Please refer to product description.

Product Overview

The LT3976IUDD#PBF is an adjustable frequency monolithic buck Switching Regulator accepts a wide input voltage range up to 40V. Low quiescent current design consumes only 3.3µA 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. The LT3976 can supply up to 5A of load current and has current limit foldback 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 75mR switch is included on the die along with a boost Schottky diode. An accurate 1.02V threshold enable pin can be driven directly from a microcontroller or used as a programmable undervoltage lockout.
  • Excellent start-up and dropout performance
  • Accurate programmable undervoltage lockout
  • Power good flag
  • Soft-start capability
  • Thermal shutdown protection
  • Current limit foldback with soft-start override
  • Synchronizable between 250kHz to 2MHz
  • 700nA Low shutdown current

Product Information

Topology:
Buck (Step Down)
Input Voltage Min:
4.3V
Input Voltage Max:
40V
No. of Outputs:
1Outputs
DC / DC Converter IC Case:
QFN
No. of Pins:
24Pins
Output Current:
5A
Output Voltage Min:
1.2V
Output Voltage Max:
39.2V
Switching Frequency:
2MHz
Operating Temperature Max:
125°C
Packaging:
Cut Tape
Product Range:
-
Automotive Qualification Standard:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (17-Dec-2015)

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Applications

  • Automotive
  • Portable Devices
  • Industrial

Legislation and Environmental

Country of Origin:
United States

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Yes
Tariff No:
85423990
Weight (kg):
.000255