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Product Detailed Parameters
- Description：IC REG BOOST CUK ADJ 750MA 8MSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- 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：750mA (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 LT8570EMS8E#TRPBF is a PWM DC/DC converter from Analog Devices Inc., housed in an MSOP-8 package. It supports Boost, SEPIC, and Inverting topologies with a 65V switch rating. The input voltage range spans 2.55 V to 40 V, while the output voltage is adjustable from 1.204 V to 65 V. The device features a 0.5A power switch capability and operates at switching frequencies up to 1.5 MHz. It includes soft-start functionality and synchronization options, operating within a temperature range of -40°C to +125°C.
Feature Summary
- Configurable as a boost, SEPIC, or inverting DC/DC converter topology
- Integrated 65V power switch for high-voltage applications
- Adjustable oscillator frequency with external synchronization capability
- Built-in soft-start function to limit inrush current
Applications
- Boost converters generating higher voltages from lower inputs
- Inverting converters creating negative output rails
- SEPIC converters for wide input voltage ranges
- Industrial control systems requiring isolated or inverted supplies
Procurement Notes
Verify the exact suffix #TRPBF indicates tape and reel packaging when ordering. Confirm the specific variant matches the required switch current rating (0.5A for LT8570 vs 0.25A for LT8570-1). Ensure the MSOP-8 package footprint aligns with the PCB design. Check lead times as availability may vary by region.
Selection Notes
Select this component for applications requiring flexible topology configuration including boost, SEPIC, or inverting modes. The 65V switch rating allows handling higher voltage differentials compared to standard 30V parts. Consider the 0.5A internal switch capacity for moderate load requirements. Verify that the external component selection supports the desired switching frequency and output voltage range.
Part Context
This part belongs to the LT8570 family of PWM DC/DC converters designed by Analog Devices. The family offers versatile conversion topologies in compact packages. The EMS8E designation specifies the MSOP-8 package with extended temperature range capabilities. It serves as a solution for space-constrained designs needing multiple converter types from a single IC family.
Replacement Considerations
LT8570EMS8E-1#TRPBF is a related variant with a 0.25A switch instead of 0.5A. LT8570EDD-1#PBF offers the same functionality in an 8-WFDFN package. Verify pin compatibility and thermal performance when substituting between package types.
