IC Phoenix logo

Home ›  M  › M133 > MIC38C43BMM

MIC38C43BMM from MICREL

Fast Delivery, Competitive Price @IC-phoenix

If you need more electronic components or better pricing, we welcome any inquiry.

MIC38C43BMM

Manufacturer: MICREL, MIC

BiCMOS Current-Mode PWM Controllers

Partnumber Manufacturer Quantity Availability
MIC38C43BMM MICREL, MIC 3121 In Stock

Description and Introduction

BiCMOS Current-Mode PWM Controllers **Enhance Your Power Designs with the MIC38C43BMM PWM Controller**  

The MIC38C43BMM is a high-performance pulse-width modulation (PWM) controller designed to optimize power supply efficiency and reliability in a wide range of applications. Engineered for precision and versatility, this advanced IC offers designers a robust solution for switch-mode power supplies (SMPS), DC-DC converters, and offline power systems.  

Featuring a high-speed bipolar/MOSFET driver, the MIC38C43BMM delivers fast switching performance, reducing power losses and improving overall system efficiency. Its adjustable oscillator frequency, ranging up to 1MHz, allows for flexible design configurations, enabling compact and high-frequency power solutions. The device also includes programmable soft-start functionality, minimizing inrush current during startup for enhanced system protection.  

With built-in under-voltage lockout (UVLO) and cycle-by-cycle current limiting, the MIC38C43BMM ensures stable operation under varying load conditions while safeguarding against voltage fluctuations and overloads. Its wide input voltage range makes it suitable for industrial, automotive, and consumer electronics applications where consistent power delivery is critical.  

The MIC38C43BMM is housed in a compact 8-pin SOIC package, offering space-saving benefits without compromising performance. Its low standby power consumption further enhances energy efficiency, making it an ideal choice for modern power management designs.  

Whether used in AC-DC adapters, LED drivers, or telecom power systems, the MIC38C43BMM provides designers with a reliable, high-efficiency solution to meet demanding performance requirements. Its combination of precision control, protection features, and adaptability makes it a standout choice for next-generation power applications.  

For engineers seeking a high-performance PWM controller that balances efficiency, flexibility, and robustness, the MIC38C43BMM delivers exceptional value and performance.

Application Scenarios & Design Considerations

BiCMOS Current-Mode PWM Controllers

Alternative Part Number

  • UC3843BD1 --: Industry-standard current-mode PWM controller in the same functional class as the MIC38C43, widely available and pin-compatible in SO-8 style packages.
  • TL3843P --: Direct functional equivalent current-mode PWM controller with similar UVLO thresholds and drive capability, from a major supplier with broad availability.
  • SG3843M --: Equivalent 3843-series current-mode PWM controller in an SOIC package, suitable drop-in replacement for the MIC38C43BMM in most designs.
  • UC3843BD --: Industry-standard current-mode PWM controller in the same functional class as the MIC38C43, widely available and pin-compatible in SOIC-8.
  • SG3843BD --: Equivalent 3843-series current-mode controller with similar UVLO thresholds and drive capability, suitable drop-in replacement.
  • TL3843BP --: Alternative 3843-family PWM controller offering comparable performance for offline converter designs.

Request Quotation

For immediate assistance, call us at +86 533 2716050 or email [email protected]

Part Number Quantity Target Price($USD) Email Contact Person
We offer highly competitive channel pricing. Get in touch for details.

Specializes in hard-to-find components chips