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Product Detailed Parameters
- Description：IC REG BUCK BOOST ADJ 1.5A 8SO
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Function：Step-Up, Step-Down, Step-Up/Step-Down
- Output Configuration：Positive or Negative
- Topology：Buck, Boost, Cuk, Flyback, Forward Converter, SEPIC
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：2.7V
- Voltage - Input (Max)：30V
- Voltage - Output (Min/Fixed)：1.245V
- Voltage - Output (Max)：35V (Switch)
- Current - Output：1.5A (Switch)
- Frequency - Switching：1MHz
- Synchronous Rectifier：No
- Operating Temperature：0°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SO
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Overview
The LT1377CS8#PBF is a monolithic high-frequency switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 2.7 V to 30 V and delivers a switch current of 1.5 A at a fixed switching frequency of 1 MHz. The device features adjustable output voltage and supports multiple topologies including boost, buck, Cuk, flyback, forward, and inverting configurations. It includes a shutdown function and maintains a typical quiescent current of 4 mA. The component is housed in an SOIC-8 surface-mount package and is rated for operation between 0°C and +125°C.
Feature Summary
- Supports versatile DC-DC conversion topologies including boost, buck, Cuk, flyback, forward, and inverting configurations within a single monolithic device.
- Integrates a high-efficiency 1.5 A power switch along with complete oscillator, control, and protection circuitry on the die.
- Features a dedicated shutdown pin to minimize power consumption during inactive periods.
Applications
- Low ripple DC-DC conversion circuits
- Portable battery-powered equipment requiring high efficiency
- Industrial control systems utilizing various standard switching topologies
Procurement Notes
Verify the specific suffix #PBF indicates lead-free compliance when sourcing. Confirm the SOIC-8 package dimensions match your PCB footprint requirements. Ensure the input voltage does not exceed the 30 V maximum rating under all operating conditions. Check for RoHS directive compliance documentation from the manufacturer before finalizing procurement.
Selection Notes
Select this component when a single IC must support multiple converter topologies without changing parts. The 1 MHz switching frequency allows for smaller external passive components compared to lower-frequency regulators. Consider the 1.5 A switch current limit against peak load requirements. Verify that the 2.7 V minimum input voltage aligns with your source supply characteristics.
Part Context
This part belongs to the LT1377 series of high-frequency switching regulators from Analog Devices. It is designed as a flexible solution for applications requiring efficient power conversion across various standard topologies. The CS8 variant specifically denotes the commercial temperature range and SOIC-8 packaging format.
Replacement Considerations
LT1377IS8#PBF is a parameter-equivalent alternative offering an extended industrial temperature range while maintaining identical electrical specifications and functionality.
