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Product Detailed Parameters
- Description：IC REG BOOST CUK ADJ 250MA 8DFN
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- Function：Step-Up, Step-Up/Step-Down
- Output Configuration：Positive or Negative
- Topology：Boost, Cuk, SEPIC
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：2.55V
- Voltage - Input (Max)：40V
- Voltage - Output (Min/Fixed)：0.003V, 1.204V
- Voltage - Output (Max)：65V (Switch)
- Current - Output：250mA (Switch)
- Frequency - Switching：200kHz ~ 1.5MHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：8-WFDFN Exposed Pad
- Supplier Device Package：8-DFN (3x3)
- Grade：-
- Qualification：-
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Overview
The LT8570HDD-1#TRPBF is a PWM DC/DC converter manufactured by Analog Devices Inc., housed in an 8-lead DFN package. It integrates a 65V power switch and supports boost, SEPIC, and inverting topologies. The device operates with an input voltage range of 2.55V to 40V and delivers up to 200mA output current. It features an adjustable switching frequency between 200kHz and 1.5MHz, synchronized via an external clock or set by an internal resistor. The component functions within a temperature range of -40°C to 125°C.
Feature Summary
- Configurable as a boost, SEPIC, or inverting DC/DC converter
- Integrated 65V power switch for high-voltage applications
- Adjustable oscillator frequency with external synchronization capability
Applications
- Inverting converters generating negative voltages from positive inputs
- Boost converters for stepping up lower input voltages
- SEPIC converters for isolated or non-isolated voltage regulation
Procurement Notes
Verify the specific suffix #TRPBF indicates tape-and-reel packaging when sourcing. Confirm the manufacturer is Analog Devices Inc. Ensure the part number matches the exact DD-1 variant for correct pinout and electrical characteristics. Cross-reference with official datasheets to validate RoHS compliance and operating temperature ranges before integration.
Selection Notes
Select this component for designs requiring a compact solution with flexible topology options. The integrated 65V switch allows handling higher input voltages without external components. Consider the 200mA current limit and adjustable frequency range when designing passive components. Ensure the DFN package fits the available PCB space and thermal requirements.
Part Context
This part belongs to the LT8570 family of PWM DC/DC converters. The family includes variants like LT8570IDD-1 and LT8570IMS8E-1, differing primarily in package type and temperature grade. The LT8570 series is designed for efficient power conversion in space-constrained applications.
Replacement Considerations
LT8570IDD-1#TRPBF shares identical electrical specifications but may differ in package orientation or marking. LT8570EDD-1#TRPBF offers similar functionality with potentially different thermal characteristics. Verify pin compatibility and thermal performance before substitution.
