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Product Detailed Parameters
- Description：IC REG BUCK ADJ 2A 10MSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- 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：-55°C ~ 150°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 LT3480MPMSE#PBF is a micropower switching regulator manufactured by Analog Devices Inc., designed for high-efficiency step-down applications. It operates with an input voltage range from 3.6V to 36V and delivers up to 2A of output current. The device features a fixed internal switching frequency of 2.4MHz, enabling the use of small external components. It supports adjustable output voltages ranging from 790mV to 20V. Key electrical specifications include a quiescent current of 70µA and a shutdown current of 30µA. The component is housed in a 10-lead MSOP package with an exposed pad and is rated for operation between -40°C and +125°C.
Feature Summary
- Integrates a 2.4MHz synchronous buck converter with a 36V rated switch for compact design
- Features ultra-low quiescent current of 70µA to maximize efficiency in battery-powered systems
- Includes programmable soft start to limit inrush current during startup
- Supports adjustable output voltage via external resistor divider
Applications
- Portable instrumentation and handheld devices
- Battery-operated equipment requiring extended runtimes
- Industrial control systems with wide input voltage ranges
- Automotive electronics operating within specified temperature grades
Procurement Notes
Verify that the specific suffix 'MP' denotes the military/extended temperature grade variant (-40°C to +125°C) as per the official Analog Devices datasheet. Confirm the package type is MSOP-10 with an exposed thermal pad. Ensure compatibility with your PCB footprint and thermal management requirements before finalizing procurement orders.
Selection Notes
Select this component when designing systems requiring a wide input voltage range up to 36V and high peak current capability of 2A. The 2.4MHz switching frequency allows for smaller inductors and capacitors compared to lower-frequency alternatives. Consider the exposed pad requirement for thermal dissipation and ensure the application environment falls within the specified military-grade temperature range.
Part Context
This part belongs to the LT3480 family of micropower switching regulators from Analog Devices. It is distinct from other variants such as the LT3480IMSE or LT3480HMSE primarily by its temperature rating and reliability specifications associated with the MP suffix. The family is characterized by high efficiency and low standby power consumption suitable for space-constrained applications.
Replacement Considerations
LT3480IMSE#PBF: Verify if industrial temperature range (-40°C to +85°C) suffices; otherwise, the MP grade is required. LT3480HMSE#PBF: Check if commercial temperature range is acceptable. Direct substitution requires confirming that the pinout and thermal characteristics remain identical across these package variants.
