Low

LT3973EMSE#PBF - 

DC-DC Switching Buck Step Down Regulator, Adjustable, 4.2V-42Vin, 1.21V-40.5Vout, 750mAout, MSOP-10

LT3973EMSE#PBF - DC-DC Switching Buck Step Down Regulator, Adjustable, 4.2V-42Vin, 1.21V-40.5Vout, 750mAout, MSOP-10

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Manufacturer Part No:
LT3973EMSE#PBF
Order Code:
2097880
Technical Datasheet:
(EN)
See all Technical Docs

Product Overview

The LT3973EMSE#PBF is an adjustable frequency monolithic buck Switching Regulator accepts a wide input voltage range up to 42V and consumes only 2.5µA of quiescent current. A high efficiency switch is included on the die along with the catch diode, boost diode and the necessary oscillator, control and logic circuitry. Low ripple Burst Mode® operation maintains high efficiency at low output current while keeping the output ripple below 10mV in a typical application. A minimum dropout voltage of 530mV is maintained when the input voltage drops below the programmed output voltage, such as during automotive cold crank. Current-mode topology is used for fast transient response and good loop stability. A catch diode current limit provides protection against shorted outputs and overvoltage conditions, with thermal shutdown providing additional fault protection. An accurate programmable undervoltage lockout feature is available, producing a low shutdown current of 0.75µA.
  • Integrated boost and catch diodes
  • Excellent start-up and dropout performance
  • Accurate programmable undervoltage lockout
  • Internal catch diode current limit
  • Power good flag
  • Thermal shutdown

Applications

Automotive, Portable Devices, Industrial

Product Information

:
Buck (Step Down)
:
4.2V
:
42V
:
1Outputs
:
MSOP
:
10Pins
:
750mA
:
1.21V
:
40.5V
:
2.2MHz
:
125°C
:
Cut Tape
:
-
:
-
:
MSL 1 - Unlimited
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