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Product Detailed Parameters
- Description：IC REG BUCK 2.5V 3A 16TSSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Fixed
- Number of Outputs：1
- Voltage - Input (Min)：3V
- Voltage - Input (Max)：25V
- Voltage - Output (Min/Fixed)：2.5V
- Voltage - Output (Max)：-
- Current - Output：3A
- Frequency - Switching：1.25MHz
- Synchronous Rectifier：No
- Operating Temperature：0°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：16-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Supplier Device Package：16-TSSOP-EP
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Overview
The LT1765EFE-2.5#TRPBF is a monolithic buck switching regulator manufactured by Analog Devices Inc., housed in a 16-TSSOP-EP package with an exposed pad for thermal management. It operates as a step-down DC/DC converter with a fixed 2.5V output voltage and supports up to 3A output current. The device accepts an input voltage range from 3V to 25V and utilizes a fixed internal switching frequency of 1.25MHz. Key electrical specifications include a maximum quiescent current of 1mA, a shutdown mode reducing current to 15µA, and an operating temperature range spanning from -40°C to +125°C junction temperature.
Feature Summary
- Integrates a high-efficiency 3A internal power switch within a compact surface-mount package.
- Features a fixed 1.25MHz switching frequency to minimize external component size while maintaining stable regulation.
- Includes a low-power shutdown mode that significantly reduces quiescent current consumption when disabled.
Applications
- Battery-powered portable equipment requiring efficient step-down conversion
- Industrial control systems utilizing wide input voltage ranges
- Embedded computing platforms needing regulated 2.5V logic supplies
Procurement Notes
Verify the specific suffix #TRPBF indicates tape-and-reel packaging distinct from tube variants. Confirm the manufacturer part number matches exactly to ensure correct output voltage configuration. Check RoHS compliance documentation for environmental adherence. Validate the supplier's authorization status to guarantee genuine components. Review datasheet revisions for any recent parameter updates or pinout changes.
Selection Notes
Select this component when a fixed 2.5V output is required alongside high current capability. The wide 3V to 25V input range accommodates various battery and rail sources. Ensure adequate thermal design due to the exposed pad requirement for heat dissipation. Consider the 1.25MHz frequency trade-off between efficiency and EMI filtering needs. Verify compatibility with downstream load transient requirements.
Part Context
This part belongs to the LT1765 family of monolithic buck converters designed for space-constrained applications. It shares architectural similarities with other members like the LT1765EFE-5#PBF but differs in fixed output voltage settings. The series is characterized by fast switching speeds and integrated power switches, distinguishing it from linear regulators in the same portfolio.
Replacement Considerations
LT1765EFE-5#PBF: Fixed 5V output variant; verify voltage compatibility. LT1765EFE-3.3#PBF: Fixed 3.3V output variant; check level shifting needs. LT1765EFE#PBF: Adjustable output version; requires external resistor network.
