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Product Detailed Parameters
- Description：IC REG BST CHARGE PUMP ADJ 8MSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- Function：Step-Up, Step-Up/Step-Down
- Output Configuration：Positive or Negative
- Topology：Boost, Charge Pump, 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：375mA (Switch)
- Frequency - Switching：200kHz ~ 1.5MHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 125°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 LT8570IMS8E-1#TRPBF is a PWM DC/DC converter from Analog Devices, featuring a 0.25A, 65V power switch. It supports boost, SEPIC, and inverting topologies with an input voltage range of 2.55V to 40V. The device operates at a switching frequency of 1.5MHz and delivers up to 200mA output current. Output voltages are configurable from 1.204V to 65V. It includes shutdown functionality and operates within a temperature range of -40°C to +125°C.
Feature Summary
- Configurable as a boost, SEPIC, or inverting converter
- Integrated 0.25A, 65V power switch
- High switching frequency for compact design
- Shutdown pin for power management
Applications
- Boost converters generating 12V from 5V inputs
- Inverting converters producing -15V from 5-35V inputs
- Charge pump applications creating ±12V from single lithium-ion batteries
Procurement Notes
Verify the exact part number suffix #TRPBF indicates tape and reel packaging. Confirm availability status as distribution channels may list limited supply or discontinuation. Ensure the MSOP-8 package matches your PCB footprint requirements. Cross-reference the manufacturer's latest datasheet for any recent revisions or ordering information updates.
Selection Notes
Select this component when a high-voltage switch (65V) is required in a small MSOP-8 package. The 1.5MHz frequency allows for smaller external inductors and capacitors compared to lower-frequency alternatives. Choose the LT8570-1 variant specifically for its 0.25A current limit if higher currents are not needed. Verify thermal performance for the intended load conditions.
Part Context
This part belongs to the LT8570 family of PWM DC/DC converters. The 'IMS8' designation specifies the MSOP-8 package type. The '-1' suffix typically denotes the version with a 0.25A switch current limit, distinguishing it from the standard LT8570 which features a 0.5A switch. The '#TRPBF' suffix confirms the specific tape and reel packaging configuration.
Replacement Considerations
LT8570IMS8E is the non-'1' variant with a 0.5A switch. LT8570EMS8E-1 is the leaded MSOP equivalent. LT8570IDD variants offer different package options.
