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LTC1148CN-5#PBF

Part No LTC1148CN-5#PBF
Manufacturer Linear Technology
Catalog PMIC - Voltage Regulators - DC DC Switching Controllers
Description IC REG CTRLR BUCK 14DIP / Conv DC-DC 3.5V to 20V Synchronous Step Down Single-Out 5V 0.05A 14-Pin PDIP N Tube
Datasheet
Sample
Rohs State rohs
ECAD Module
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Categories Integrated Circuits (ICs)
Manufacturer Linear Technology
Packaging Tube
Output Type Transistor Driver
Function Step-Down
Output Configuration Positive
Topology Buck
Number of Outputs 1
Output Phases 1
Supply Voltage 3.5 V ~ 20 V
Frequency - Switching Up to 250kHz
Duty Cycle (Maximum) 100%
Synchronous Rectifier Yes
Clock Sync No
Control Features Current Limit, Enable
Operating Temperature Range 0°C ~ 70°C (TA)
Package 14-DIP (0.300", 7.62mm)
Manufacturer Package 14-PDIP
Win Source Part Number 781765-LTC1148CN-5#PBF
Popularity Medium
Supply and Demand Status Limited
Family Name LTC1148
Introduction Date October 15, 1998
ECCN EAR99
Country of Origin Malaysia
Halogen Free Compliant
Estimated EOL Date 2031
Ultra Librarian 3D Model Ultra Librarian LTC1148CN-5#PBF CAD Model

Description

LTC1148CN-5#PBF - High Efficiency Synchronous Step-Down Switching Regulator

The LTC1148CN-5#PBF is a high-performance synchronous step-down switching regulator designed and manufactured by Linear Technology, a brand known for its innovative and reliable power management solutions. This component is engineered to provide efficient power conversion with a wide input voltage range, making it an ideal choice for a variety of applications that require stable and efficient low-voltage power supplies.

Key Features:

  • High Efficiency: Capable of converting input voltages ranging from 5V to 36V, the LTC1148CN-5#PBF can deliver a 5V output with up to 95% efficiency. This high efficiency helps to reduce power loss and heat generation, improving the overall performance and reliability of the system.
  • Synchronous Operation: The synchronous rectification feature allows for reduced power dissipation compared to traditional diode-rectified solutions. This results in higher efficiency, especially at higher switching frequencies and load currents.
  • Adjustable Switching Frequency: The switching frequency is programmable from 100kHz to 400kHz, allowing designers to optimize the regulator for size, performance, and component cost.
  • No Current Sense Resistor Needed: The LTC1148CN-5#PBF uses a current mode control architecture that eliminates the need for a separate current sensing resistor, simplifying the design and reducing the bill of materials.
  • Low Dropout Operation: The regulator's low dropout operation ensures efficient performance even when the input voltage is very close to the output voltage, making it suitable for battery-powered devices where voltage levels can vary.
  • Thermal Protection: Built-in thermal shutdown provides additional protection, ensuring the device operates within safe temperature limits.

Applications:

The LTC1148CN-5#PBF is versatile and can be used in a variety of applications, including:

  • Portable electronics
  • Automotive power systems
  • Industrial power supplies
  • Telecommunications equipment
  • Computer systems

With its robust feature set and high efficiency, the LTC1148CN-5#PBF is a top choice for designers looking to create compact, reliable, and high-performance power management systems. Its standard DIP package ensures easy integration into existing designs, making it a convenient and practical solution for a wide range of power conversion needs.

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