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Product Detailed Parameters
- Description：IC REG BOOST CUK ADJ 1.2A 8MSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- 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)：2.9V
- Voltage - Input (Max)：40V
- Voltage - Output (Min/Fixed)：1.2V
- Voltage - Output (Max)：65V (Switch)
- Current - Output：1.2A (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 LT8580HMS8E#PBF is a monolithic Boost, SEPIC, and Inverting DC/DC converter manufactured by Analog Devices Inc. It integrates a 1A switch with a maximum voltage rating of 65V. The device operates from an input voltage range of 2.55V to 40V and provides an adjustable output voltage between 1.204V and 65V. Key electrical parameters include a fixed switching frequency of 1.5MHz, a quiescent current of 1.2mA, and a single output configuration. It supports soft-start and synchronization features within an MSOP-8 package.
Feature Summary
- Supports multiple topologies including boost, SEPIC, and inverting configurations for flexible power conversion.
- Integrates a high-voltage 65V switch capable of delivering up to 1A of output current.
- Includes internal soft-start functionality to limit inrush current during startup.
- Features a synchronization pin allowing the switching frequency to be locked to an external clock.
Applications
- Battery-powered systems requiring voltage step-up or inversion
- Industrial control circuits utilizing distributed power architectures
- Automotive electronics operating within specified temperature ranges
Procurement Notes
Verify the specific suffix #PBF indicates lead-free compliance and RoHS adherence before procurement. Confirm the MSOP-8 package variant matches the target PCB footprint. Ensure the design accounts for the 1.5MHz fixed frequency regarding external component selection. Validate that the 65V switch rating exceeds the maximum expected peak voltage in the application circuit.
Selection Notes
Select this component when a single-output regulator supporting boost, SEPIC, or inverting modes is required. It is suitable for applications needing a 1A switch current and operation up to 40V input. Consider the MSOP-8 package for space-constrained designs. Verify thermal performance requirements against the 125°C maximum junction temperature specification.
Part Context
This part belongs to the LT8580 family of DC/DC converters from Analog Devices. It shares functional similarities with other variants like the LT8570 but offers higher current capability. The H-grade designation typically denotes extended industrial temperature specifications compared to standard commercial grades.
Replacement Considerations
LT8570HMS8E#PBF: Offers similar topology support but with a lower 400mA switch current rating. LT8580EMS8E#PBF: Identical electrical performance but housed in an MSOP-8EP package which may differ thermally and mechanically.
