LTC3421EUF#PBF

LTC3421EUF#PBF

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LTC3421EUF#PBF
IC REG BOOST ADJUSTABLE 1A 24QFN
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$5.51

Price update:a months ago
Available in stock: 101
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.
LTC3421EUF#PBF Products

The LTC3421EUF is a high efficiency, current mode, fixed frequency, step-up DC/DC converter with true output disconnect and inrush current limiting. The device includes a 0.10Ω N-channel MOSFET switch and a 0.14Ω P-channel synchronous rectifier. This product has the ability to simply program the output voltage, switching frequency, current limit, soft-start, Burst Mode threshold and loop compensation with external passive components.

Quiescent current is only 12µA during Burst Mode operation, maximizing battery life in portable applications. The oscillator frequency can be programmed up to 3MHz and can be synchronized to an external clock applied to the SYNC pin. An open-drain uncommitted low-battery comparator is included. The part maintains operation in applications with a secondary cell powering the output voltage during shutdown.

Other features include: 1µA shutdown, anti-ringing control, thermal limit and reference output.

The LTC3421EUF is available in a small 4mm × 4mm QFN package.

Feature

  • Synchronous Rectification: Up to 96% Efficiency
  • True Output Disconnect
  • Inrush Current Limiting
  • Very Low Quiescent Current: 12µA
  • Up to 1.5A Continuous Output Current
  • Fixed Frequency Operation Up to 3MHz
  • 0.5V to 4.5V Input Range
  • 2.4V to 5.25V Adjustable Output Voltage
  • Guaranteed 1V Start-Up
  • Programmable Current Limit
  • Programmable Soft-Start
  • Synchronizable Oscillator
  • Manual or Automatic Burst Mode® Operation
  • Low-Battery Comparator
  • <1µA Shutdown Current
  • 1.22V Reference Output Voltage
  • Small (4mm × 4mm) Thermally Enhanced QFN Package

Applications

  • Handheld Computers
  • Cordless Phones
  • GPS Receivers
  • Battery Backup Supplies

Product Attributes

TYPE DESCRIPTION Select all
Voltage - Output (Min/Fixed) 2.4V
Voltage - Output (Max) 5.25V
Package Tube
Current - Output 1A (Switch)
Product Status Active
Frequency - Switching 100kHz ~ 3MHz
Function Step-Up
Synchronous Rectifier No
Output Configuration Positive
Operating Temperature -40°C ~ 85°C (TA)
Topology Boost
Mounting Type Surface Mount
Output Type Adjustable
Package / Case 24-WFQFN Exposed Pad
Number of Outputs 1
Supplier Device Package 24-QFN (4x4)
Voltage - Input (Min) 0.5V
Voltage - Input (Max) 4.5V

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$5.51

Price update:a months ago
Available in stock: 101
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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