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Product Detailed Parameters
- Description：IC REG BUCK ADJ 1.2A 10MSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- 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：10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad
- Supplier Device Package：10-MSOP-EP
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Overview
The LT3971IMSE#TRPBF is a monolithic buck switching regulator from Analog Devices Inc., housed in a 10-lead MSOP package with an exposed pad. It accepts an input voltage range of 4.3V to 38V and delivers up to 1.2A output current. The device features an adjustable switching frequency between 200kHz and 2MHz, low quiescent current operation, and includes an internal high-efficiency switch. It supports fixed or adjustable output voltages via external feedback resistors.
Feature Summary
- Adjustable frequency operation allows optimization for size and efficiency across a wide range.
- Low quiescent current design maintains high efficiency at light loads while minimizing power consumption.
- Integrated high-efficiency synchronous switch reduces external component count and thermal requirements.
Applications
- Industrial control systems requiring compact step-down regulation
- Distributed power architectures in embedded applications
- Battery-powered equipment needing extended runtime through low standby current
Procurement Notes
Verify the specific suffix and tape/reel configuration against official Analog Devices documentation to ensure compatibility with automated assembly processes. Confirm that the MSOP-10 package variant matches your PCB footprint requirements. Cross-reference the datasheet revision to validate electrical characteristics and pinout assignments prior to finalizing procurement orders.
Selection Notes
Select this component when a wide input voltage range up to 38V is required alongside a compact surface-mount solution. The adjustable frequency feature enables designers to optimize the trade-off between electromagnetic interference and passive component size. Ensure the thermal performance of the exposed pad meets the application's heat dissipation needs under maximum load conditions.
Part Context
This part belongs to the LT3971 family of high-voltage buck regulators designed for space-constrained applications. The IMSE designation indicates the industrial temperature grade and MSOP packaging. It serves as a versatile DC-to-DC converter option within Analog Devices' power management portfolio, balancing performance with physical footprint.
Replacement Considerations
LT3971EMSE#PBF offers similar specifications in a tube package format. LT3971AIMSE#TRPBF provides enhanced accuracy variants within the same package type. Verify pinout compatibility and thermal characteristics before substituting any alternative models from the manufacturer's lineup.
