LT3973IDD-3.3#PBF

LT3973IDD-3.3#PBF

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LT3973IDD-3.3#PBF
IC REG BUCK 3.3V 750MA 10DFN
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$8.61

Price update:a months ago
Available in stock: 125
45
Serves customers in 45 countries
1000+
Worldwide Manufacturers
$140M
$140M Growth in 5 Years
50.0M+
50M Parts Shipped in 5 Years
Analog Devices Inc.

Analog Devices Inc.

Analog Devices (NASDAQ: ADI) leads in crafting high-performance analog, mixed-signal, and digital signal processing integrated circuits. For decades, they've tackled signal processing challenges across global electronics. With over 100,000 clients, their products convert real-world phenomena into electrical signals. Merged with Maxim Integrated, they offer top-tier mixed-signal and power management technologies, solving complex problems from DC to 100 GHz and sensor to cloud.

View All Product from Analog Devices Inc.
LT3973IDD-3.3#PBF Products

The LT3973IDD-3.3#TRPBF is an adjustable frequency monolithic buck switching regulator that 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 currents 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. A power good flag signals when VOUT reaches 90% of the programmed output voltage. The LT3973IDD-3.3#TRPBF is available in small, thermally enhanced 10-lead MSOP and 3mm × 3mm DFN packages.

Feature

  • Ultralow Quiescent Current2.5μA IQ at 12VIN to 3.3VOUT
  • Low Ripple Burst Mode® OperationOutput Ripple < 10mVP-P
  • Wide Input Voltage Range: 4.2V to 42V Operating
  • Adjustable Switching Frequency: 200kHz to 2.2MHz
  • Integrated Boost and Catch Diodes
  • 750mA Output Current
  • Excellent Start-Up and Dropout Performance
  • Fixed Output Voltages: 3.3V, 5V
    • 1.9μA IQ at 12VIN
  • Accurate Programmable Undervoltage Lockout
  • Low Shutdown Current: IQ = 0.75μA
  • Internal Catch Diode Current Limit
  • Power Good Flag
  • Thermal Shutdown
  • Small, Thermally Enhanced 10-Lead MSOP and (3mm × 3mm) DFN Packages

Applications

  • Automotive Battery Regulation
  • Power for Portable Products
  • Industrial Supplies
  • Gate Drive Bias

Product Attributes

TYPE DESCRIPTION Select all
Voltage - Output (Min/Fixed) 3.3V
Package Tube
Current - Output 750mA
Product Status Active
Frequency - Switching 195kHz ~ 2.15MHz
Function Step-Down
Synchronous Rectifier No
Output Configuration Positive
Operating Temperature -40°C ~ 125°C (TJ)
Topology Buck
Mounting Type Surface Mount
Output Type Fixed
Package / Case 10-WFDFN Exposed Pad
Number of Outputs 1
Supplier Device Package 10-DFN (3x3)
Voltage - Input (Min) 4.2V
Voltage - Input (Max) 42V

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$8.61

Price update:a months ago
Available in stock: 125
Analog Devices Inc.

Analog Devices Inc.

Analog Devices (NASDAQ: ADI) leads in crafting high-performance analog, mixed-signal, and digital signal processing integrated circuits. For decades, they've tackled signal processing challenges across global electronics. With over 100,000 clients, their products convert real-world phenomena into electrical signals. Merged with Maxim Integrated, they offer top-tier mixed-signal and power management technologies, solving complex problems from DC to 100 GHz and sensor to cloud.

View All Product from Analog Devices Inc.

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