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MB3759P

Voltage-mode switching controller with a maximum switching frequency of 300kHz and a 0.25A current rating

Inventory:6,249

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Overview of MB3759P

The MB3759P is a pulse width modulation (PWM) controller IC designed for use in switching power supply applications. It provides a versatile and efficient solution for controlling the operation of power converters and voltage regulation circuits.

Pinout

(Note: The pin configuration below is a general representation. Refer to the specific datasheet for precise details.)

  • FB: Feedback Pin for Voltage Regulation
  • REF: Reference Voltage Pin
  • CS: Current Sense Pin
  • SS/TR: Soft Start/Tracking Pin
  • OUT: Power Supply Output
  • VCC: Positive Power Supply
  • GND: Ground Connection
  • RT/CT: Timing Components Pin
  • COMP: Compensation Pin
  • INV: Inverting Input
  • COMP OUT: Compensation Output Pin
  • SYNC: Synchronization Input Pin
  • SS/TR INV: Soft Start/Tracking Inverting Input Pin

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the MB3759P IC for a visual representation.

Key Features

  • Pulse Width Modulation (PWM) Control: The MB3759P offers efficient PWM control for voltage regulation and power supply applications.
  • Soft Start Function: Includes a soft start feature for gradual power supply output ramp-up, reducing startup stress on components.
  • Current Mode Control: Provides reliable current mode control for stable and responsive power supply operation.
  • Adjustable Reference Voltage: The reference voltage can be adjusted to fine-tune the output voltage regulation characteristics.
  • Synchronization Capability: Allows synchronization with an external clock signal for coordinated operation in multi-channel power supplies.
  • Wide Operating Voltage Range: Operates within a wide voltage range, suitable for diverse power supply designs.

Note: For detailed technical specifications, please refer to the MB3759P datasheet.

Application

  • Switching Power Supplies: Ideal for controlling and regulating switching power supplies in various electronic systems.
  • Voltage Regulators: Suitable for use in voltage regulator circuits for stable and adjustable output voltages.
  • Power Converters: Used in power converter designs to efficiently manage and control voltage conversion processes.

Functionality

The MB3759P PWM controller IC provides precise and reliable control over power supply and voltage regulation operations, offering adjustable features for versatile application use.

Usage Guide

  • Power Supply Connections: Connect VCC (Pin 6) to the positive power supply and GND (Pin 7) to the ground connection.
  • Feedback Loop: Utilize the FB (Pin 1) and COMP (Pin 9) pins for voltage feedback and compensation in the regulation loop.
  • Soft Start Control: Use the SS/TR (Pin 4) pin to control the soft start and ramp-up behavior of the power supply output.

Frequently Asked Questions

Q: Can the MB3759P operate in a wide input voltage range?
A: Yes, the MB3759P is designed to operate within a wide voltage range, providing flexibility for various power supply designs.

Q: Does the MB3759P include synchronization capability?
A: Yes, the MB3759P offers synchronization capability, allowing coordinated operation in multi-channel power supply setups.

Equivalent

For similar functionalities, consider these alternatives to the MB3759P:

  • UC3843: A pulse width modulation controller IC with similar voltage regulation and power supply control features.
  • SG3525: This PWM controller IC provides adjustable control for power supply and voltage regulation applications.

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Product Category AC/DC Converters Mounting Style Through Hole
Package / Case PDIP-16 Switching Frequency 300 kHz
Minimum Operating Temperature - 30 C Maximum Operating Temperature + 85 C
Output Current 5 mA Brand Fujitsu
Number of Outputs 2 Output Product Type AC/DC Converters
Subcategory PMIC - Power Management ICs Type Switching Controller
Unit Weight 0.057419 oz

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MB3759P

Voltage-mode switching controller with a maximum switching frequency of 300kHz and a 0.25A current rating

Inventory:

6,249