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Product Detailed Parameters
- Description：IC REG BUCK ADJ 1A 36QFN
- 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)：4.4V
- Voltage - Input (Max)：105V
- Voltage - Output (Min/Fixed)：1V
- Voltage - Output (Max)：105V
- Current - Output：1A
- Frequency - Switching：200kHz ~ 2MHz
- Synchronous Rectifier：Yes
- Operating Temperature：-55°C ~ 150°C (TA)
- Mounting Type：Surface Mount
- Package / Case：36-WFQFN, 26 Leads, Exposed Pad
- Supplier Device Package：36-QFN (5x6)
- Grade：-
- Qualification：-
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Overview
The LT7101MPUHE#TRPBF is a synchronous step-down regulator from Analog Devices, designed for high-voltage input applications. It supports an input voltage range up to 105V and delivers a continuous output current of 2.3A. The device integrates a 2.3A power switch and operates with a fixed switching frequency of 1.05MHz. Key electrical parameters include a minimum input voltage of 4.5V and an adjustable output voltage range starting from 0.8V. It features low EMI characteristics through spread spectrum modulation and includes comprehensive protection mechanisms such as overcurrent, thermal, and UVLO.
Feature Summary
- Integrates a high-voltage 2.3A synchronous power switch capable of handling inputs up to 105V
- Employs spread spectrum modulation technology to minimize electromagnetic interference emissions
- Includes built-in protection against overcurrent, thermal overload, and undervoltage lockout
Applications
- Industrial motor drives and control systems
- Automotive infotainment and body electronics
- High-voltage battery-powered equipment
Procurement Notes
Verify the exact part number suffix against official Analog Devices documentation to ensure correct package and temperature grade. Confirm RoHS compliance status and lead times directly with authorized distributors or the manufacturer, as availability may vary by region. Ensure the ordering information matches the specific revision required for your design.
Selection Notes
Select this component when designing buck converters requiring high input voltages exceeding standard 60V limits. The integrated 2.3A capability suits moderate load applications without external passives. Consider the 1.05MHz frequency for balancing efficiency and passive size. Verify that the thermal performance in the chosen LQFN-24 package meets the system's heat dissipation requirements under maximum load conditions.
Part Context
This part belongs to the LT7101 family of high-voltage synchronous buck regulators. It shares architectural similarities with other ADI high-voltage converters but is distinct in its specific 2.3A current rating and 105V input limit. The MPUHE suffix indicates a specific tape-and-reel packaging variant within the broader product line.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided source material. Engineers should consult Analog Devices application notes or technical support for validated alternatives based on specific electrical and thermal constraints.
