IC Phoenix logo

Home ›  M  › M89 > MB3889

MB3889 from FUJ

Fast Delivery, Competitive Price @IC-phoenix

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

MB3889

Manufacturer: FUJ

2-Channel DC/DC Converter IC with Overcurrent Protection Symmetrical-Phase Type
Partnumber Manufacturer Quantity Availability
MB3889 FUJ 355 In Stock

Description and Introduction

2-Channel DC/DC Converter IC with Overcurrent Protection Symmetrical-Phase Type Here is the factual information about part MB3889:

**Manufacturer Specifications:**
- **Manufacturer:** Fujitsu
- **Part Number:** MB3889
- **Type:** DC-DC Controller IC
- **Input Voltage Range:** 4.5V to 18V
- **Output Voltage Range:** Adjustable (typically 0.8V to 5.5V)
- **Switching Frequency:** 300kHz (typical)
- **Operating Temperature Range:** -40°C to +85°C
- **Package Type:** SOP-8 (Small Outline Package, 8-pin)

**Descriptions:**
- The MB3889 is a PWM (Pulse Width Modulation) controller IC designed for DC-DC converter applications.
- It provides high-efficiency voltage conversion with adjustable output voltage.
- Suitable for power supply designs in consumer electronics, industrial equipment, and computing applications.

**Features:**
- Built-in PWM control for stable voltage regulation.
- Overcurrent protection (OCP) and undervoltage lockout (UVLO) for enhanced reliability.
- Soft-start function to reduce inrush current during startup.
- Low standby current consumption for energy-efficient operation.
- Compatible with external N-channel MOSFETs for flexible power stage design.

This information is based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

2-Channel DC/DC Converter IC with Overcurrent Protection Symmetrical-Phase Type

Alternative Part Number

  • LM3489 --: Pin-compatible step-down DC-DC controller with similar function and wide input range, widely available and well documented.
  • TPS5430 --: Integrated step-down converter offering comparable voltage/current capability, simpler design with fewer external parts.
  • MC34063A --: Versatile general-purpose DC-DC switching regulator usable as a functional substitute in many MB3889 applications.
  • LM2678 --: Widely available step-down switching regulator with comparable input voltage range and current capability, suitable as a functional replacement in many DC-DC converter designs.
  • MC34063 --: Classic general-purpose DC-DC switching regulator IC that can be configured for step-down, step-up, or inverting operation, offering a flexible and low-cost alternative.
  • L5973D --: Monolithic step-down switching regulator with similar voltage and current ratings, commonly used as a drop-in style alternative for power supply circuits.

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