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Product Detailed Parameters
- Description：IC REG BUCK ADJ 550MA 8SO
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：7.4V
- Voltage - Input (Max)：40V
- Voltage - Output (Min/Fixed)：1.24V
- Voltage - Output (Max)：34V
- Current - Output：550mA (Switch)
- Frequency - Switching：200kHz
- 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 LT1776CS8#TRPBF is a high-efficiency step-down switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 7 V to 60 V and provides adjustable output voltages. The device integrates a power switch capable of delivering up to 0.5 A of output current. It features a fixed internal switching frequency of 200 kHz, which allows for the use of small external inductors and capacitors. The component supports shutdown functionality to minimize quiescent current during standby modes.
Feature Summary
- Integrates a high-voltage power switch for efficient buck conversion
- Supports wide input voltage ranges suitable for industrial applications
- Includes thermal shutdown protection for operational safety
Applications
- Automotive DC/DC conversion systems
- Telecommunications 48V step-down circuits
- IEEE1394 compliant step-down converters
Procurement Notes
Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the SOIC-8 package dimensions match the target PCB footprint requirements for surface mount assembly processes.
Selection Notes
Select this component for designs requiring a wide input voltage range up to 60 V. It is suitable for applications needing moderate output currents around 0.5 A. Consider the 200 kHz switching frequency for balancing component size and efficiency. Verify that the required output voltage falls within the adjustable range supported by the feedback network configuration.
Part Context
This part belongs to the LT1776 series of switching regulators from Analog Devices. It is designed as a compact solution for converting higher bus voltages to lower logic or sensor supply levels. The CS8 package designation identifies the specific thermal and pinout characteristics of the surface-mount variant.
Replacement Considerations
Consult official Analog Devices substitution guides for verified alternatives. Cross-reference pinouts and electrical specifications carefully before replacing.
