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Product Detailed Parameters
- Description：IC REG BUCK ADJ 3A DL 32QFN
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Adjustable
- Number of Outputs：2
- Voltage - Input (Min)：3V
- Voltage - Input (Max)：60V
- Voltage - Output (Min/Fixed)：0.8V
- Voltage - Output (Max)：57V
- Current - Output：3A
- Frequency - Switching：110kHz ~ 2.5MHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：32-WFQFN Exposed Pad
- Supplier Device Package：32-QFN (5x5)
- Grade：-
- Qualification：-
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Overview
The LT3992EUH#PBF is a dual-output synchronous step-down switching regulator IC manufactured by Analog Devices Inc. It operates with an input voltage range of 3V to 60V and provides two adjustable positive outputs, each capable of delivering up to 3A. The device features a programmable switching frequency between 110kHz and 2.5MHz. It utilizes a 32-WFQFN package with an exposed thermal pad for efficient heat dissipation. The minimum output voltage is set at 0.8V, and the unit supports an operating junction temperature from -40°C to 125°C.
Feature Summary
- Dual independent adjustable output channels
- Synchronous buck topology for high efficiency
- Wide input voltage capability up to 60V
- Programmable switching frequency
Applications
- Distributed DC power systems
- Battery operated digital devices
- Automotive always-on systems
Procurement Notes
Verify the specific suffix #PBF confirms lead-free compliance and RoHS standards before procurement. Confirm the EUH package variant matches the required footprint and thermal requirements. Check current availability status as supply may be limited. Ensure the ordering information aligns with the manufacturer's latest datasheet specifications to avoid compatibility issues.
Selection Notes
Select this component when dual isolated or non-isolated low-voltage rails are required from a higher voltage bus. The wide frequency range allows optimization for size versus noise. Ensure external components support the 3A per channel current rating. Verify that the PCB layout accommodates the 32-QFN package dimensions and thermal pad connection for adequate heat management.
Part Context
This part belongs to the LT3992 family of dual synchronous step-down controllers. It is designed for applications requiring multiple regulated outputs from a single power source. The device integrates error amplifiers and PWM control logic, requiring external MOSFETs for power stage implementation. It serves as a core power management solution in compact electronic designs.
Replacement Considerations
LT3992IUH#PBF is documented as an equivalent parameter substitute.
