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Product Detailed Parameters
- Description：IC REG BUCK ADJ 1.2A 16MSOP
- 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)：4.3V
- Voltage - Input (Max)：38V
- Voltage - Output (Min/Fixed)：1.19V
- Voltage - Output (Max)：30V
- Current - Output：1.2A
- Frequency - Switching：200kHz ~ 2MHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：16-TFSOP (0.118", 3.00mm Width) Exposed Pad
- Supplier Device Package：16-MSOP-EP
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Overview
The LT3971IMSE16#PBF is a monolithic buck switching regulator manufactured by Analog Devices. It operates with an input voltage range of 4.3 V to 38 V and delivers a maximum output current of 1.2 A. The device supports adjustable output voltages from 1.19 V to 30 V and features a switch frequency up to 2 MHz. Quiescent current is specified at 2.8 uA during regulation and 1.7 uA in operation. It utilizes a synchronous step-down topology within a 16-lead MSOP package.
Feature Summary
- Ultra-low quiescent current design maintains high efficiency at low load currents while keeping output ripple minimal.
- Internally compensated current mode topology ensures fast transient response and stable loop performance.
- Integrated power good flag signals when the output voltage reaches the programmed threshold level.
Applications
- Battery-powered portable equipment requiring extended runtime
- Industrial systems with wide input voltage variations
- Automotive electronics operating under varying supply conditions
Procurement Notes
Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and specific lot traceability requirements before integration. Ensure storage conditions meet moisture sensitivity levels for surface-mount assembly processes.
Selection Notes
Select this regulator for applications demanding high efficiency across wide input ranges. The fixed 2 MHz frequency allows for compact external component sizing. Verify thermal management capabilities given the MSOP package constraints and expected load profiles.
Part Context
This component belongs to the LT3971 series of high-efficiency step-down regulators. It shares core architectural features with other variants in the family, differing primarily in package configuration and specific electrical parameter tolerances defined by the suffix codes.
Replacement Considerations
LT3971IMSE#TRPBF offers identical electrical specifications in tape-and-reel packaging. LT3971EMSE-3.3#PBF provides a fixed 3.3 V output option within the same package family.
