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LTC3731IUH#TRPBF

Part No LTC3731IUH#TRPBF
Manufacturer Linear Technology
Catalog PMIC - Voltage Regulators - DC DC Switching Controllers
Description IC REG CTRLR BUCK 32QFN / DC/DC Cntrlr Single-OUT Step Down 440kHz Automotive 32-Pin QFN EP T/R
Datasheet
Sample
Rohs State rohs
ECAD Module
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Categories Integrated Circuits (ICs)
Manufacturer Linear Technology
Series PolyPhase
Packaging Reel package
Output Type Transistor Driver
Function Step-Down
Output Configuration Positive
Topology Buck
Number of Outputs 3
Output Phases 3
Supply Voltage 3.8 V ~ 7 V
Frequency - Switching 225kHz ~ 680kHz
Duty Cycle (Maximum) 98.5%
Synchronous Rectifier Yes
Clock Sync No
Control Features Enable, Phase Control, Power Good, Soft Start
Operating Temperature Range -40°C ~ 85°C (TA)
Package 32-WFQFN Exposed Pad
Manufacturer Package 32-QFN (5x5)
Win Source Part Number 783594-LTC3731IUH#TRPBF
Popularity Medium
Supply and Demand Status Limited
Family Name LTC3731
Introduction Date January 25, 2006
ECCN EAR99
Country of Origin Malaysia
Halogen Free Compliant
Estimated EOL Date 2031
Ultra Librarian 3D Model Ultra Librarian LTC3731IUH#TRPBF CAD Model

Description

Product Overview: LTC3731IUH#TRPBF

The LTC3731IUH#TRPBF is a high-performance, synchronous step-down switching regulator controller designed by Linear Technology. It is a versatile component tailored for demanding applications that require efficient power conversion with precise voltage regulation. This product is ideal for a wide range of uses, including distributed power systems, telecommunications, networking equipment, and industrial applications.

Key Features

  • Wide Input Voltage Range: The LTC3731IUH#TRPBF operates over a broad input voltage range, making it suitable for various supply voltages.
  • High Efficiency: With its synchronous operation, this controller achieves high efficiency, which is critical for reducing heat generation and improving system reliability.
  • Adjustable Switching Frequency: Users can adjust the switching frequency from 250kHz to 750kHz, allowing flexibility in the design to optimize for efficiency or component size.
  • Phase-Lockable Frequency: The 250kHz to 550kHz range can be locked to an external clock, ensuring noise-sensitive applications can avoid problematic frequency bands.
  • Powerful 1.1 Ohm On-Board Gate Drivers: These drivers provide the capability to drive large power MOSFETs, enabling the handling of high current loads with ease.
  • OPTI-LOOP® Compensation: This feature allows the transient response to be optimized over a wide range of output capacitance and ESR values.
  • Multiple Operating Modes: The device offers Burst Mode® operation, pulse-skipping mode, and forced continuous mode, providing a trade-off between efficiency and output ripple.
  • Robust Protection Features: It includes overvoltage protection, undervoltage lockout, and foldback current limiting to safeguard the system under abnormal conditions.

Package and Availability

The LTC3731IUH#TRPBF is packaged in a compact (5mm x 5mm) QFN-32 package, which is designed to occupy minimal board space while offering excellent thermal performance. The part is available in tape and reel packaging, designated by the 'TRPBF' suffix, which facilitates automated assembly processes for high-volume production.

Conclusion

In summary, the LTC3731IUH#TRPBF by Linear Technology is a sophisticated and reliable solution for power management challenges. Its comprehensive feature set, including a wide input voltage range, high efficiency, adjustable and phase-lockable frequency, and robust protection, make it a highly adaptable component for a variety of power regulation tasks.

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