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MAX1653ESE from MAX,MAXIM - Dallas Semiconductor

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MAX1653ESE

Manufacturer: MAX, MAXIM,MAXIM

High-Efficiency / PWM / Step-Down DC-DC Controllers in 16-Pin QSOP

Partnumber Manufacturer Quantity Availability
MAX1653ESE MAX, MAXIM,MAXIM 51187 In Stock

Description and Introduction

High-Efficiency / PWM / Step-Down DC-DC Controllers in 16-Pin QSOP The MAX1653ESE is a step-down DC-DC converter manufactured by Maxim Integrated. Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **Specifications:**  
- **Manufacturer:** Maxim Integrated  
- **Part Number:** MAX1653ESE  
- **Package:** 16-SOIC (150 mils)  
- **Input Voltage Range:** 4.5V to 30V  
- **Output Voltage Range:** Adjustable from 1.25V to 28V  
- **Output Current:** Up to 1.5A  
- **Switching Frequency:** 300kHz  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Protection Features:** Overcurrent, thermal shutdown  

### **Descriptions:**  
The MAX1653ESE is a high-efficiency, step-down DC-DC converter designed for applications requiring a regulated output voltage from a higher input voltage. It integrates a power MOSFET and control circuitry to provide a compact solution for power conversion. The device operates at a fixed switching frequency of 300kHz, reducing output ripple and external component size.  

### **Features:**  
- **Wide Input Voltage Range (4.5V to 30V)** – Suitable for various power sources.  
- **Adjustable Output Voltage (1.25V to 28V)** – Flexible for different applications.  
- **High Efficiency (Up to 95%)** – Minimizes power loss.  
- **Integrated Power MOSFET** – Simplifies design and reduces external components.  
- **Fixed 300kHz Switching Frequency** – Reduces output ripple and EMI.  
- **Overcurrent and Thermal Protection** – Enhances reliability.  
- **Low Dropout Operation** – Maintains regulation even when input voltage is close to output.  
- **Soft-Start Function** – Prevents inrush current at startup.  

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

Application Scenarios & Design Considerations

High-Efficiency / PWM / Step-Down DC-DC Controllers in 16-Pin QSOP

Alternative Part Number

  • LTC1624CS8 --: Step-down switching controller in an SO-8 package with similar input voltage range and current-mode architecture; a well-known cross from Linear Technology often used where MAX1653 is unavailable.
  • TPS5430DDA --: Wide-input step-down converter with integrated switch, similar voltage/current class, easy drop-in for many MAX1653 buck applications with fewer external parts.
  • LM2675M-ADJ --: Adjustable step-down regulator in SO-8 with comparable input range and load capability; a common second-source option for MAX1653 designs.
  • LTC1625CS --: Pin-compatible synchronous step-down controller with similar input voltage range and current-mode architecture; widely available and well documented.
  • LM2678S-ADJ --: Adjustable step-down regulator with comparable voltage and current ratings; mature, low-cost alternative suitable for similar power supply designs.
  • LTC1625CS8 --: Step-down switching controller with similar function and pin-compatible SO-8 package; widely available and well documented.
  • LM2675M-5.0 --: Simple switcher buck regulator in SO-8 with similar voltage/current ratings; easy to source and cost-effective alternative.

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