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Product Detailed Parameters
- Description：IC REG BUCK ADJ 200MA TSOT23-8
- 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)：4V
- Voltage - Input (Max)：40V
- Voltage - Output (Min/Fixed)：1.25V
- Voltage - Output (Max)：16V
- Current - Output：200mA
- Frequency - Switching：-
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：SOT-23-8 Thin, TSOT-23-8
- Supplier Device Package：TSOT-23-8
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Overview
The LT3470ITS8#TRMPBF is a micropower step-down DC/DC converter manufactured by Analog Devices Inc. It integrates a 300mA power switch, catch diode, and boost diode into a TSOT-23-8 package. The device operates with an input voltage range of 4V to 40V and provides an adjustable output voltage from 1.25V to 16V. It delivers up to 200mA of output current with a typical quiescent current of 26µA. The switching frequency is fixed at 1.2MHz, allowing for the use of small external components. It functions in both Burst Mode and continuous conduction mode.
Feature Summary
- Integrates a 300mA power switch, catch diode, and boost diode within a compact TSOT-23-8 package.
- Combines Burst Mode operation with continuous conduction to minimize quiescent current while maintaining low output ripple.
- Supports wide input voltage ranges suitable for various automotive and industrial supply rails.
Applications
- Automotive electronics requiring high-voltage step-down conversion
- Industrial control systems with wide input voltage requirements
- Battery-powered devices needing efficient micropower regulation
Procurement Notes
Verify the specific suffix TRMPBF indicates tape and reel packaging when ordering. Confirm that the ITS8 variant corresponds to the TSOT-23-8 package type as documented. Ensure compatibility with the required operating temperature range of -40°C to +125°C for your application environment before finalizing procurement.
Selection Notes
Select this component when a buck regulator is needed with integrated catch and boost diodes to save board space. It is suitable for applications requiring input voltages up to 40V and output currents around 200mA. Consider the 1.2MHz fixed frequency for filtering requirements and the low quiescent current for battery life optimization.
Part Context
This part belongs to the LT3470 family of micropower buck converters. Similar parts include the LT3470IDDB (DFN package) and LT3470HTS8 (TSOT-23-8). The family is characterized by integrated passive components and high efficiency across wide input voltage ranges.
Replacement Considerations
LT3470HTS8#TRMPBF is a direct pin-compatible alternative in the same TSOT-23-8 package. LT3470ETS8#TRMPBF is another variant in the TSOT-23-8 package. Verify thermal performance and exact electrical parameters against datasheets before substitution.
