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MAX1953EUB from MAXIM,MAXIM - Dallas Semiconductor

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MAX1953EUB

Manufacturer: MAXIM, MAX

Low-Cost / High-Frequency / Current-Mode PWM Buck Controller
Partnumber Manufacturer Quantity Availability
MAX1953EUB MAXIM, MAX 5908 In Stock

Description and Introduction

Low-Cost / High-Frequency / Current-Mode PWM Buck Controller The **MAX1953EUB** is a DC-DC converter manufactured by **Maxim Integrated** (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** Maxim Integrated  
- **Category:** DC-DC Converters  
- **Type:** Step-Down (Buck) Switching Regulator  
- **Input Voltage Range:** 4.5V to 28V  
- **Output Voltage Range:** Adjustable (0.8V to 5.5V)  
- **Output Current:** Up to 3A  
- **Switching Frequency:** 500kHz  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 10-pin µMAX (MicroMAX)  
- **Mounting Type:** Surface Mount  

### **Descriptions:**
The **MAX1953EUB** is a high-efficiency, step-down DC-DC converter designed for applications requiring a regulated low-voltage supply from a higher input voltage. It integrates a synchronous rectifier for improved efficiency and is suitable for battery-powered and industrial applications.

### **Features:**
- **Wide Input Voltage Range (4.5V–28V)** – Supports various power sources.  
- **Adjustable Output Voltage (0.8V–5.5V)** – Configurable via external resistors.  
- **High Efficiency (Up to 95%)** – Minimizes power loss.  
- **3A Output Current Capability** – Suitable for powering high-current loads.  
- **500kHz Switching Frequency** – Reduces external component size.  
- **Synchronous Rectification** – Enhances efficiency compared to diode-based designs.  
- **Overcurrent and Thermal Protection** – Safeguards the device from damage.  
- **Small µMAX Package (10-pin)** – Space-saving for compact designs.  

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

Application Scenarios & Design Considerations

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

Alternative Part Number

  • TPS54331D --: Wide-input 3A step-down converter in SOIC-8, functionally similar to the MAX1953 buck regulator and easy to source.
  • LM2675M-ADJ --: Adjustable 1A buck regulator in SOIC-8 with a comparable topology and simple external component count.
  • MP1584EN --: Compact 3A step-down converter with wide input range, suitable as a lower-cost functional replacement.
  • TPS5430DDA --: Widely available step-down converter in the same class, good electrical overlap and easy second-source option.
  • LT1933ES6 --: Compact high-efficiency buck regulator with similar voltage and current ratings, suitable as a functional substitute.
  • LTC3406ES5 --: Similar step-down DC-DC converter in a small package with comparable input voltage range and current capability, suitable as a functional replacement.
  • TPS5420D --: Wide-input buck converter with comparable switching frequency and output current, commonly used as a cross-reference for MAX1953-class regulators.
  • AP3402KTR-G1 --: Compact synchronous buck converter offering similar voltage and current ratings, usable as an alternative with layout adjustments.

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