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ADI LT3972EMSE#TRPBF product image
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ADI LT3972EMSE#TRPBF

Manufacturer
ADI
MPN
LT3972EMSE#TRPBF
LCSC Part #
C671789
Packaging
MSOP-10-EP
Customer #
Key Attributes
2.45MHz Step-down type Adjustable 3.5A 790mV~30V MSOP-10-EP Voltage Regulators - DC DC Switching Regulators RoHS
DatasheetADI LT3972EMSE#TRPBF
RoHS Compliance1 documents available
Alternative Parts5
Every Order Guarantee
100% Authentic · 30-Day Return or Replacement

Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators
ManufacturerADI
PackagingMSOP-10-EP
Operating Temperature-40℃~+125℃@(TJ)
Frequency - Switching2.45MHz
FunctionStep-down type
Number of Outputs1
FeaturesFrequency synchronization;Light load efficient mode;Operating status indication;Overcurrent Protection
Output TypeAdjustable
TopologyBuck
Operating Voltage3.6V~33V
Switch tube (built-in/external)Built-in
Output Current3.5A
Output Voltage790mV~30V
Quiescent Current75uA
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Introduction

AI Translation

The L3972 is an adjustable frequency (200kHz to 2.4MHz) monolithic buck switching regulator that accepts input voltages 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 currents 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. The LT3972 is available in 10-pin MSOP and 3mm×3mm DFN packages with exposed pads for low thermal resistance.

Features

AI Translation
  • Wide Input Range: Operation from 3.6V to 33V
  • Overvoltage Lockout Protects Circuits Through 62V Transients
  • 3.5A Maximum Output Current
  • Low Ripple (<15mV P-P) Burst Mode Operation: I0 = 75μA at 12VIN to 3.3V OUT
  • Adjustable Switching Frequency: 200kHz to 2.4MHz
  • Low Shutdown Current: I0 < 1μA
  • Integrated Boost Diode
  • Synchronizable Between 250kHz to 2MHz
  • Power Good Flag
  • Saturating Switch Design: 95mΩ On-Resistance
  • Output Voltage: 0.79V to 30V
  • Thermal Protection
  • Soft-Start Capability
  • Small 10-Pin Thermally Enhanced MSOP and (3mm×3mm) DFN Packages

Applications

AI Translation
  • Automotive Battery Regulation
  • Distributed Supply Regulation
  • Industrial Supplies
  • Wall Transformer Regulation