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Product Detailed Parameters
- Description：IC REG BUCK ADJ 600MA TSOT23-6
- 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)：3.6V
- Voltage - Input (Max)：36V
- Voltage - Output (Min/Fixed)：1.245V
- Voltage - Output (Max)：33.84V
- Current - Output：600mA
- Frequency - Switching：500kHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：SOT-23-6 Thin, TSOT-23-6
- Supplier Device Package：TSOT-23-6
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Overview
The LT1933IS6#TRMPBF is a current mode PWM step-down DC/DC converter featuring an internal 0.75A power switch in a TSOT-23 package. It operates with a wide input voltage range of 3.6V to 36V and supports fixed frequency switching at 500kHz. The device provides adjustable output voltages down to 1.245V, delivering up to 1.05A typical output current. It includes cycle-by-cycle current limit protection and soft-start functionality to eliminate input current surge during startup.
Feature Summary
- Integrates a 0.75A internal power switch for compact design
- Supports wide input voltage ranges from various sources
- Provides cycle-by-cycle current limit protection against shorted outputs
- Features internal soft-start to manage input current surge
Applications
- Regulating power from unregulated wall transformers
- Powering circuits from 24V industrial supplies
- Battery-powered systems requiring low shutdown current management
Procurement Notes
Verify the specific suffix #TRMPBF indicates tape and reel packaging when sourcing. Confirm the manufacturer is Analog Devices Inc. or its subsidiary Linear Technology. Ensure the component matches the TSOT-23-6 physical footprint. Check RoHS compliance status if required by your assembly specifications.
Selection Notes
Select this controller for applications requiring a small form factor due to the TSOT-23 package. It is suitable for designs needing a wide input voltage range up to 36V. Consider the 500kHz switching frequency for balancing efficiency and passive component size. Ensure the load current does not exceed the internal switch capabilities.
Part Context
This component belongs to the LT1933 series of step-down switching regulators. It is designed for high-frequency operation to allow the use of tiny inductors and ceramic capacitors. The series is known for low profile packages and efficient power management in space-constrained environments.
Replacement Considerations
LT1933HS6-TR is a compatible variant in a DFN package. Verify pinout compatibility and thermal performance differences between TSOT-23 and DFN packages before substitution.
