IC Phoenix logo

Home ›  M  › M33 > MAX1954EUB

MAX1954EUB from MAXIM,MAXIM - Dallas Semiconductor

Fast Delivery, Competitive Price @IC-phoenix

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

MAX1954EUB

Manufacturer: MAXIM, MAX

Low-Cost / High-Frequency / Current-Mode PWM Buck Controller
Partnumber Manufacturer Quantity Availability
MAX1954EUB MAXIM, MAX 19111 In Stock

Description and Introduction

Low-Cost / High-Frequency / Current-Mode PWM Buck Controller The MAX1954EUB is a high-efficiency, step-down DC-DC converter manufactured by Maxim Integrated. Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Input Voltage Range:** 2.7V to 5.5V  
- **Output Voltage Range:** Adjustable from 0.8V to VIN  
- **Output Current:** Up to 1.5A  
- **Switching Frequency:** 1MHz (fixed)  
- **Efficiency:** Up to 95%  
- **Package:** 10-pin µMAX® (3mm x 5mm)  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
The MAX1954EUB is a synchronous step-down DC-DC converter optimized for high efficiency and compact size. It integrates low-resistance power MOSFETs and operates at a fixed 1MHz switching frequency, allowing the use of small external components. The device supports a wide input voltage range, making it suitable for battery-powered applications.  

### **Features:**  
- **High Efficiency:** Up to 95% due to synchronous rectification.  
- **Low Dropout Operation:** Allows output voltage to closely track input voltage.  
- **Pulse-Width Modulation (PWM) Mode:** Ensures low-noise operation.  
- **Internal Soft-Start:** Reduces inrush current during startup.  
- **Overcurrent and Thermal Protection:** Enhances reliability.  
- **Adjustable Output Voltage:** Set via an external resistor divider.  
- **Small Footprint:** 10-pin µMAX package for space-constrained applications.  

The MAX1954EUB is commonly used in portable electronics, point-of-load regulation, and battery-powered devices.

Application Scenarios & Design Considerations

Low-Cost / High-Frequency / Current-Mode PWM Buck Controller

Alternative Part Number

  • TPS5430DDA --: 3A step-down converter in SOIC-8 PowerPAD with similar input range and current rating, widely available and pin-compatible in function.
  • LM2596S-ADJ --: Adjustable 3A buck regulator in TO-263, a common drop-in functional replacement for MAX1954 designs with easy availability.
  • MP1584EN --: Compact 3A step-down converter with wide input range, suitable as a lower-cost functional alternative for similar buck applications.
  • MC34063ACD --: Versatile general-purpose switching regulator IC that can be configured for similar step-down applications; low cost and broadly stocked alternative.
  • LTC3406ES5 --: Pin-compatible step-down DC-DC converter in a similar small package with comparable input voltage range and current capability, widely used as a drop-in substitute.
  • TPS62290DRV --: High-efficiency synchronous buck converter with similar switching frequency and output current, suitable replacement in portable power designs.
  • AP3211KTR-G1 --: Low-cost step-down converter with comparable voltage and current ratings, offering a cost-effective alternative for similar applications.

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