Analog Devices Inc. LTC3412AIUF#PBF

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Product attributes Property Value
Manufacturer Analog Devices Inc.
Product Series
Packaging Tube |
Function Step-Down
Output Configuration Positive
Topology Buck
Output Type Adjustable
Number of Outputs 1
Voltage - Input (Min) 2.25V
Voltage - Input (Max) 5.5V
Voltage - Output (Min/Fixed) 0.8V
Voltage - Output (Max) 5V
Current - Output 3A
Frequency - Switching 300kHz ~ 4MHz
Synchronous Rectifier Yes
Operating Temperature -40°C ~ 125°C (TJ)
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case 16-WQFN Exposed Pad
Supplier Device Package 16-QFN (4x4)
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The LTC3412AIUF#PBF is a synchronous step-down DC-DC converter from Analog Devices, designed for low-voltage applications. It operates from an input voltage between 2.25V and 5.5V and provides a regulated output from 0.8V to 5V, with a continuous current capability of 3A. The switching frequency is adjustable from 300kHz to 4MHz, enabling designers to optimize for efficiency or component size. Packaged in a compact 16-pin WQFN, it is suitable for portable electronics, point-of-load regulation, and industrial systems.

  • High Efficiency at Light Loads: Burst Mode operation maintains high efficiency even at low output currents, extending battery life in portable devices.
  • Wide Frequency Range: The 300kHz to 4MHz range allows for flexibility in choosing external components to balance size and performance.
  • Low Input Voltage Operation: The 2.25V minimum input supports deep battery discharge in single-cell Li-Ion applications.
  • Compact Package: The 16-lead WQFN package minimizes board space for space-constrained designs.

Low-Voltage Portable Electronics

For devices powered by a single Li-Ion cell (2.8V to 4.2V), the LTC3412AIUF#PBF's 2.25V minimum input ensures operation down to the end of battery discharge, while its high efficiency extends runtime in smartphones and tablets.

Point-of-Load (POL) for DSPs and FPGAs

With a 3A output and adjustable voltage down to 0.8V, this buck converter is ideal for powering the core voltages of modern DSPs and FPGAs from a 3.3V or 5V supply rail.

Distributed Power in 5V Systems

In computing and peripheral applications, the converter efficiently steps down a 5V main rail to lower logic voltages, with the 4MHz switching frequency allowing for small ceramic capacitors and inductors.

USB-Powered Devices

The 5.5V maximum input is perfect for USB bus-powered devices (5V nominal), providing a regulated low-voltage supply for sensors, microcontrollers, and wireless transceivers.

Industrial Sensor Interfaces

In industrial settings, the LTC3412AIUF#PBF can generate clean, low-noise rails for analog and digital circuitry from a regulated 3.3V or 5V supply, ensuring accurate sensor readings.

Battery-Powered IoT Nodes

For IoT devices using 2-3 alkaline cells or a Li-Po battery, the wide input range and high efficiency at light loads make it an excellent choice for powering sleep-mode and active-mode operations.

Q: What type of converter is the LTC3412AIUF#PBF?
A: It is a high-efficiency, synchronous step-down (Buck) DC-DC converter.
Q: What is the input voltage range?
A: The input voltage range is from 2.25V to 5.5V.
Q: What is the maximum output current?
A: It can deliver up to 3A of continuous output current.
Q: What is the switching frequency range?
A: The switching frequency is programmable from 300kHz up to 4MHz.
Q: What package is available?
A: It is available in a 16-lead WQFN package with an exposed pad.
Q: What is the output voltage range?
A: The output voltage is adjustable from 0.8V up to 5V.
Base Product Number : LTC3412AIUF
16-WQFN 2.25V-5.5V 300kHz-4MHz 3A Analog Devices Buck DC-DC Converter LTC3412 Step-Down Synchronous
Q: What type of converter is the LTC3412AIUF#PBF?
A: It is a high-efficiency, synchronous step-down (Buck) DC-DC converter.
Q: What is the input voltage range?
A: The input voltage range is from 2.25V to 5.5V.
Q: What is the maximum output current?
A: It can deliver up to 3A of continuous output current.
Q: What is the switching frequency range?
A: The switching frequency is programmable from 300kHz up to 4MHz.
Q: What package is available?
A: It is available in a 16-lead WQFN package with an exposed pad.
Q: What is the output voltage range?
A: The output voltage is adjustable from 0.8V up to 5V.