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Product Detailed Parameters
- Description：IC REG BOOST CUK ADJ 500MA 8MSOP
- 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：500mA (Switch)
- Frequency - Switching：200kHz ~ 1.5MHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Supplier Device Package：8-MSOP-EP
- Grade：-
- Qualification：-
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Overview
The LT8570HMS8E#TRPBF is a PWM DC/DC converter manufactured by Analog Devices Inc., housed in an MSOP-8 package. It integrates a 65V power switch and supports Boost, SEPIC, and Inverting topologies. The device operates with an input voltage range of 2.55 V to 40 V and delivers up to 400 mA output current. Key electrical parameters include a 1.5 MHz switching frequency, 1.2 mA quiescent current, and an adjustable oscillator. It 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 and external synchronization capability
- Built-in soft-start functionality
Applications
- Generating negative voltages from positive inputs (Inverting)
- Step-up conversion from single-cell lithium-ion batteries
- Industrial control systems requiring isolated or inverted rails
- Portable equipment powered by variable input sources
Procurement Notes
Verify the specific suffix #TRPBF indicates tape-and-reel packaging when ordering. Confirm the MSOP-8 package variant matches your PCB footprint requirements. Ensure the operating temperature range meets your environmental specifications. Cross-reference the datasheet for exact pinout definitions before finalizing assembly designs.
Selection Notes
Select this component for applications requiring flexible topology configuration in a compact surface-mount package. The integrated 65V switch allows handling higher input voltages compared to standard low-voltage regulators. Consider the 1.5 MHz switching frequency for balancing efficiency and passive component size. Verify that the 400 mA output current meets the load requirements of the target circuit design.
Part Context
This part belongs to the LT8570 family of PWM DC/DC converters from Analog Devices. The family includes variants like LT8570IMS8E and LT8570EMS8E, which share similar core functionalities but may differ in temperature grades or packaging formats. The LT8570 series is designed for versatile power management solutions in space-constrained environments.
Replacement Considerations
LT8570IMS8E#PBF: Similar MSOP-8 package with industrial temperature range (-40°C to 85°C). LT8570EMS8E#PBF: Extended temperature range (-40°C to 125°C) in MSOP-8. LT8570HMS8E#PBF: Higher temperature grade in tube packaging. Verify pin compatibility and thermal performance when substituting.
