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MAX1742EEE from MAXIM,MAXIM - Dallas Semiconductor

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MAX1742EEE

Manufacturer: MAXIM, MAX

1A/2.7A, 1MHz, Step-Down Regulators with Synchronous Rectification and Internal Switches

Partnumber Manufacturer Quantity Availability
MAX1742EEE MAXIM, MAX 1181 In Stock

Description and Introduction

1A/2.7A, 1MHz, Step-Down Regulators with Synchronous Rectification and Internal Switches The MAX1742EEE is a step-down DC-DC converter manufactured by Maxim Integrated (now part of Analog Devices). Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 36V  
- **Output Voltage Range:** Adjustable from 1.25V to 10V  
- **Output Current:** Up to 500mA  
- **Switching Frequency:** 500kHz  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 16-QSOP (Quad Flat Small Outline Package)  

### **Descriptions:**  
The MAX1742EEE is a high-efficiency, step-down DC-DC converter designed for applications requiring a regulated output voltage from a wide input voltage range. It integrates a power MOSFET and control circuitry to provide a compact and efficient power solution. The device operates at a fixed switching frequency of 500kHz, allowing for small external components and reduced PCB space.  

### **Features:**  
- **Wide Input Voltage Range (4.5V to 36V)** – Suitable for industrial, automotive, and battery-powered applications.  
- **High Efficiency (Up to 90%)** – Minimizes power loss and heat dissipation.  
- **Adjustable Output Voltage (1.25V to 10V)** – Configurable via external resistors.  
- **Integrated Power MOSFET** – Simplifies design and reduces external component count.  
- **Current-Mode Control** – Provides fast transient response and stable operation.  
- **Thermal Shutdown Protection** – Prevents damage from excessive heat.  
- **Undervoltage Lockout (UVLO)** – Ensures proper operation under low input voltage conditions.  

The MAX1742EEE is commonly used in industrial control systems, automotive electronics, and portable devices requiring efficient power conversion.

Application Scenarios & Design Considerations

1A/2.7A, 1MHz, Step-Down Regulators with Synchronous Rectification and Internal Switches

Alternative Part Number

  • LTC3412AEFE --: Pin-compatible step-down DC-DC converter with similar input voltage range and current rating, widely used as a MAX1742 substitute.
  • TPS5430DDA --: Buck converter with comparable voltage and current specifications, available in a similar package and commonly cross-referenced for MAX1742 designs.
  • LM2675M-ADJ --: Adjustable step-down regulator with similar operating range and current capability, suitable as a functional replacement with minor layout changes.
  • LTC3406ES5 --: Similar step-down DC-DC converter in a small package with comparable input voltage range and current capability, widely used as a MAX1742 substitute.
  • TPS5420D --: Buck converter with comparable voltage and current ratings, easy drop-in for many MAX1742 applications with good availability.
  • LM2596S-ADJ --: Adjustable step-down regulator with similar function and ratings; larger package but very common and cost-effective alternative.
  • LTC3412EFE --: 2.5A synchronous step-down regulator in TSSOP-16 with similar input range and pin-compatible function, widely available and a strong drop-in candidate.
  • TPS54310PWP --: 3A synchronous buck converter in HTSSOP-20 offering comparable current capability and adjustable output, suitable with minor layout changes.
  • LM2678S-ADJ --: 5A step-down regulator in TO-263 with adjustable output, higher current margin and easy availability as a robust fallback.

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