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Product Detailed Parameters
- Description：IC REG FLYBACK 1.2A TSOT23-5
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Function：Step-Up/Step-Down
- Output Configuration：Positive or Negative, Isolation Capable
- Topology：Flyback
- Output Type：-
- Number of Outputs：1
- Voltage - Input (Min)：2.7V
- Voltage - Input (Max)：42V
- Voltage - Output (Min/Fixed)：-
- Voltage - Output (Max)：-
- Current - Output：1.2A
- Frequency - Switching：Down to 10kHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：SOT-23-5 Thin, TSOT-23-5
- Supplier Device Package：TSOT-23-5
- Grade：-
- Qualification：-
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Overview
The LT8301HS5#TRPBF is a micro-power isolated flyback converter from Analog Devices, designed for high-reliability applications. It operates with an input voltage range of 2.7 V to 42 V and delivers up to 1.2 A output current at 65 V. The device features a low quiescent current of 350 uA and a switching frequency of 10.6 kHz. It supports an operating temperature range from -40°C to +150°C and is housed in a TSOT-23-5 package. This component is qualified under the AEC-Q100 standard for automotive use.
Feature Summary
- Eliminates the need for optocouplers or auxiliary windings by directly sampling the primary-side flyback waveform for output regulation.
- Integrates a 65V, 1.2A DMOS power switch to minimize external component count and board space.
- Operates in boundary mode to enable small magnetic components and maintain excellent load regulation.
- Utilizes Burst Mode operation at light loads to sustain high efficiency while minimizing output voltage ripple.
Applications
- Automotive systems requiring isolated power supplies with extended temperature ranges
- Industrial control units needing compact isolated DC-DC conversion
- Medical equipment requiring galvanic isolation without optocouplers
Procurement Notes
Verify the specific suffix 'HS5' confirms the industrial/high-temperature grade and TSOT-23-5 package configuration. Confirm the '#TRPBF' designation indicates tape-and-reel packaging compatible with automated assembly processes. Ensure compatibility with AEC-Q100 requirements if deploying in automotive environments. Cross-reference the manufacturer datasheet for exact pinout and thermal pad specifications.
Selection Notes
Select this component when designing isolated power stages that require minimal external parts and high reliability. It is suitable for applications where space constraints necessitate a TSOT-23-5 footprint. Consider its 1.2A current capability and 65V output rating against load requirements. Evaluate the 350 uA quiescent current impact on standby power consumption. Verify that the 10.6 kHz switching frequency aligns with EMI constraints in the target system.
Part Context
This part belongs to the LT8301 family of micro-power isolated flyback converters. It shares core functionality with variants like the LT8301IS5#WTRPBF but differs in temperature grade and packaging. The family is characterized by its no-opto-coupler architecture and integrated power switch, targeting efficient, compact isolated power solutions across various industries.
Replacement Considerations
LT8301IS5#WTRPBF: Similar function but different package and temperature grade. LT8300ES5#PBF: Lower current variant in a similar package. LT8302IS8E-3#PBF: Higher current option in an SOIC-8 package. Verify electrical parameters and thermal performance before substitution.
