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M51998FP from RENESAS

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M51998FP

Manufacturer: RENESAS, MIT

SWITCHING REGULATOR CONTROL

Partnumber Manufacturer Quantity Availability
M51998FP RENESAS, MIT 9850 In Stock

Description and Introduction

SWITCHING REGULATOR CONTROL The M51998FP is a power supply control IC manufactured by Renesas. Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**
- **Manufacturer:** Renesas  
- **Type:** Power Supply Control IC  
- **Package:** SOP-16 (Small Outline Package, 16 pins)  
- **Operating Voltage Range:** Typically used in AC/DC power supply applications  
- **Switching Frequency:** Adjustable, often used in high-frequency switching power supplies  
- **Protection Features:** Includes overcurrent protection (OCP), overvoltage protection (OVP), and undervoltage lockout (UVLO)  
- **Control Method:** PWM (Pulse Width Modulation) control  

### **Descriptions:**
- The M51998FP is designed for power supply control in switching regulators.  
- It is commonly used in offline power supplies, such as those found in consumer electronics and industrial equipment.  
- The IC integrates multiple protection functions to enhance system reliability.  

### **Features:**
- **Soft-Start Function:** Reduces inrush current during startup.  
- **Low Standby Power Consumption:** Suitable for energy-efficient designs.  
- **High Noise Immunity:** Ensures stable operation in noisy environments.  
- **Wide Operating Voltage Range:** Supports various input voltage conditions.  
- **Built-in Error Amplifier:** Simplifies feedback loop design.  

For exact electrical characteristics and application details, refer to the official Renesas datasheet.

Application Scenarios & Design Considerations

SWITCHING REGULATOR CONTROL

Alternative Part Number

  • MC34063A --: Widely available DC-DC switching regulator controller in the same function class, easy to source and well documented.
  • LM2576 --: Robust step-down switching regulator with integrated switch, suitable as a functional replacement in many power supply designs.
  • SG3524 --: Classic PWM switching regulator controller offering similar control functions for power conversion circuits.
  • UC3843 --: Industry-standard current-mode PWM controller offering comparable control functionality for switching power supply applications.
  • MC34063AP --: Widely available general-purpose DC-DC switching regulator controller with similar function and pin-compatible design approach; easy to source and low cost.
  • LM2576T-ADJ --: Robust adjustable step-down switching regulator with integrated switch, suitable as a functional replacement in power supply designs with minor circuit changes.
  • SG3524N --: Classic PWM switching regulator controller offering comparable regulation control functions, useful when a through-hole alternative is acceptable.

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