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Product Detailed Parameters
- Description：IC REG BUCK ADJ 2A 10MSOP
- 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)：0.79V
- Voltage - Output (Max)：20V
- Current - Output：2A
- Frequency - Switching：200kHz ~ 2.4MHz
- Synchronous Rectifier：No
- Operating Temperature：0°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad
- Supplier Device Package：10-MSOP-EP
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Overview
The LT3480EMSE#TRPBF is a micropower synchronous step-down switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 3.6 V to 36 V and delivers up to 2 A of output current. The device features a fixed 2.4 MHz switching frequency, which allows for the use of small external components. It provides an adjustable output voltage from 790 mV to 20 V. The quiescent current is specified at 70 uA during operation and drops to 30 uA in shutdown mode. It is housed in a 10-lead MSOP package with an exposed pad.
Feature Summary
- Integrates high-side and low-side N-channel power switches for efficient synchronous rectification
- Features constant-frequency current mode control architecture for fast transient response
- Includes programmable soft-start capability to limit inrush current during startup
- Supports external synchronization to an external clock signal
Applications
- Battery-powered portable equipment requiring high efficiency
- Industrial systems with wide input voltage ranges
- Point-of-load regulation for digital signal processors
- Communication infrastructure power supplies
Procurement Notes
Verify the specific suffix TRPBF indicates tape and reel packaging when ordering. Confirm the EMSE variant corresponds to the commercial temperature grade. Ensure compatibility with the required MSOP-10 footprint including the thermal pad connection. Check for RoHS compliance documentation if required by your manufacturing standards.
Selection Notes
Select this component when a fixed high switching frequency is preferred to minimize passive component size. It is suitable for designs requiring a wide input voltage range up to 36 V. Consider the thermal performance of the MSOP package for high load currents. Verify that the external compensation network meets stability requirements for the specific output capacitance used.
Part Context
This part belongs to the LT3480 family of micropower synchronous buck regulators. It shares functional similarities with other ADI DC-DC converters but is distinct due to its fixed 2.4 MHz frequency and specific pinout configuration. The EMSE designation identifies the commercial temperature range and MSOP package style within the broader product line.
Replacement Considerations
LT3480IMSE#TRPBF offers identical electrical specifications with an extended industrial temperature range. LT3480HMSE#TRPBF provides enhanced reliability for higher temperature environments. Both alternatives maintain the same pinout and functionality for direct replacement.
