LT3976IUDD#TRPBF

LT3976IUDD#TRPBF

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LT3976IUDD#TRPBF
IC REG BUCK ADJUSTABLE 5A 24QFN
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$2.76

Price update:a months ago
Available in stock: 9600
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.
LT3976IUDD#TRPBF Products

The LT3976IUDD is an adjustable frequency monolithic buck switching regulator that 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 currents while keeping the output ripple below 15mV in a typical application. The LT3976IUDD 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 75mΩ 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. A capacitor on the SS pin provides a controlled inrush current (soft-start). A power good flag signals when VOUT reaches 91.6% of the programmed output voltage. The LT3976IUDD is available in small 16-lead MSOP and 24-lead 3mm × 5mm QFN packages with exposed pad for low thermal resistance.

Feature

  • Ultralow Quiescent Current:
    • 3.3μA IQ at 12VIN to 3.3VOUT
  • Low Ripple Burst Mode® Operation
    • Output Ripple < 15mVP-P
  • Wide Input Range: Operation from 4.3V to 40V
  • 5A Maximum Output Current
  • Excellent Start-Up and Dropout Performance
  • Adjustable Switching Frequency: 200kHz to 2MHz
  • Synchronizable Between 250kHz to 2MHz
  • Accurate Programmable Undervoltage Lockout
  • Low Shutdown Current: IQ = 700nA
  • Power Good Flag
  • Soft-Start Capability
  • Thermal Shutdown Protection
  • Current Limit Foldback with Soft-Start Override
  • Saturating Switch Design: 75mΩ On-Resistance
  • Small, Thermally Enhanced 16-Lead MSOP and 24-Lead 3mm × 5mm QFN Packages

Applications

  • Automotive Battery Regulation
  • Portable Products
  • Industrial Supplies

Product Attributes

TYPE DESCRIPTION Select all
Voltage - Output (Min/Fixed) 1.197V
Voltage - Output (Max) 38.8V
Package Tape & Reel (TR)
Current - Output 5A
Product Status Active
Frequency - Switching 200kHz ~ 2.25MHz
Function Step-Down
Synchronous Rectifier No
Output Configuration Positive
Operating Temperature -40°C ~ 125°C (TJ)
Topology Buck
Mounting Type Surface Mount
Output Type Adjustable
Package / Case 24-WFQFN Exposed Pad
Number of Outputs 1
Supplier Device Package 24-QFN (3x5)
Voltage - Input (Min) 4.3V
Voltage - Input (Max) 40V

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$2.76

Price update:a months ago
Available in stock: 9600
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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