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Product Detailed Parameters
- Description：IC REG BST CUK ADJ 1.3A DL 10DFN
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Function：Step-Up, Step-Up/Step-Down
- Output Configuration：Positive and Negative (Dual Rail)
- Topology：Boost, Cuk, Flyback, SEPIC
- Output Type：Adjustable
- Number of Outputs：2
- Voltage - Input (Min)：2.1V
- Voltage - Input (Max)：16V
- Voltage - Output (Min/Fixed)：±1V
- Voltage - Output (Max)：±40V
- Current - Output：1.3A
- Frequency - Switching：1.2MHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：10-WFDFN Exposed Pad
- Supplier Device Package：10-DFN (3x3)
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Overview
The LT3471EDD#TRPBF is a dual switching regulator IC from Analog Devices, housed in a 10-WFDFN package. It integrates two independent DC-DC converters capable of boost, inverting, Cuk, and SEPIC topologies. The device supports an input voltage range of 2.1V to 16V with a fixed switching frequency of 1.2MHz. Each channel delivers up to 1.3A output current, providing dual adjustable outputs ranging from ±1V to ±40V. Operating temperatures span from -40°C to +85°C.
Feature Summary
- Integrates two independent switching regulators within a single compact package
- Supports multiple circuit configurations including boost, inverting, Cuk, and SEPIC topologies
- Features a fixed 1.2MHz switching frequency for optimized passive component size
- Provides dual adjustable positive and negative output rails
Applications
- Dual rail power supply generation for portable electronic systems
- Battery-powered devices requiring simultaneous positive and negative voltage rails
- Evaluation board designs utilizing the DC1280A reference platform
- Applications necessitating compact dual-output DC-DC conversion solutions
Procurement Notes
Verify the specific suffix #TRPBF confirms tape and reel packaging when ordering. Confirm the manufacturer is Analog Devices Inc. Ensure the DFN-10 package matches the design footprint. Check RoHS compliance documentation if required by assembly specifications. Validate the part number against official distributor catalogs to avoid counterfeit components.
Selection Notes
Select this component when dual isolated or non-isolated rails are required from a single input source. The 1.2MHz frequency allows for smaller inductors compared to lower-frequency alternatives. Ensure the load current does not exceed 1.3A per channel. Consider thermal dissipation requirements given the small DFN-10 package size and high current capability.
Part Context
This part belongs to the LT3471 series of dual switching regulators. It is distinct from single-channel regulators like the LT3470 or other PMIC families such as the LT3971 buck regulators. The #TRPBF suffix indicates a specific reel packaging variant manufactured by Analog Devices.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Verify pin compatibility and electrical specifications before considering any alternative components.
