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Product Detailed Parameters
- Description：IC REG BOOST ADJ 370MA 16QFN
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Function：Step-Up
- Output Configuration：Positive
- Topology：Boost
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：2.7V
- Voltage - Input (Max)：20V
- Voltage - Output (Min/Fixed)：2.7V
- Voltage - Output (Max)：75V (Switch)
- Current - Output：370mA (Switch)
- Frequency - Switching：250kHz ~ 2MHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：16-WFQFN Exposed Pad
- Supplier Device Package：16-QFN (3x3)
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Overview
The LT3571IUD#TRPBF is a high-performance current mode step-up DC/DC converter manufactured by Analog Devices Inc. Designed primarily for biasing avalanche photodiodes (APDs) in optical receivers, it delivers an adjustable output voltage up to 75V. The device operates with an input voltage range of 2.7V to 20V and features an integrated Schottky diode and a 370mA internal switch. It includes a high-side fixed voltage drop APD current monitor and frequency synchronization capabilities.
Feature Summary
- Integrated Schottky diode and 370mA internal switch for compact design
- High-side fixed voltage drop APD current monitor for precise bias control
- Frequency synchronization capability for noise management in optical systems
Applications
- Biasing avalanche photodiodes (APDs) in optical receivers
- High-voltage boost converter applications requiring up to 75V output
- Optical communication systems requiring precise current monitoring
Procurement Notes
Verify the specific suffix #TRPBF indicates tape-and-reel packaging when ordering. Confirm the industrial temperature grade (I) matches your environmental requirements. Ensure the 16-lead QFN package fits your PCB layout constraints. Cross-reference the manufacturer's latest datasheet for any updates on RoHS compliance or pinout configurations before finalizing procurement.
Selection Notes
Select this component when designing optical receiver circuits that require stable APD bias voltages up to 75V. The integrated switch and diode reduce external component count compared to discrete solutions. Consider the 2.7V to 20V input range compatibility with standard system rails. The frequency sync feature is critical if multiple converters operate nearby to prevent interference.
Part Context
This part belongs to the LT3571 family of high-voltage boost converters from Analog Devices. It is specifically engineered for optical interconnect applications where reliable APD operation is essential. The IUD package denotes an industrial temperature range variant housed in a 16-lead QFN format, suitable for surface-mount assembly in dense electronic designs.
Replacement Considerations
No direct public substitute part numbers are confirmed in the provided documentation. Evaluate alternative high-voltage boost converters from Analog Devices or other manufacturers only after verifying electrical parameter compatibility, particularly the 75V output limit and 370mA switch current rating.
