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MAX1935ETA

Manufacturer: MAX, MAXIM

500mA, Low-Voltage Linear Regulator in Tiny QFN

Partnumber Manufacturer Quantity Availability
MAX1935ETA MAX, MAXIM 5373 In Stock

Description and Introduction

500mA, Low-Voltage Linear Regulator in Tiny QFN The MAX1935ETA 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:** 4.5V to 30V  
- **Output Voltage Range:** 1.25V to 28V (adjustable)  
- **Output Current:** Up to 500mA  
- **Switching Frequency:** 500kHz (fixed)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-pin TDFN (3mm x 3mm)  

### **Descriptions:**
The MAX1935ETA is a synchronous buck (step-down) DC-DC converter designed for high efficiency and compact power solutions. It integrates both high-side and low-side MOSFETs, reducing external component count. The device operates at a fixed 500kHz switching frequency, making it suitable for noise-sensitive applications. It features a wide input voltage range, making it ideal for industrial, automotive, and battery-powered systems.

### **Features:**
- **Integrated Power MOSFETs** – Reduces external component requirements.  
- **Adjustable Output Voltage** – Set via external resistors.  
- **Low Quiescent Current (40µA)** – Enhances efficiency in light-load conditions.  
- **Overcurrent and Thermal Protection** – Safeguards the device and load.  
- **Soft-Start Function** – Minimizes inrush current during startup.  
- **Synchronous Rectification** – Improves efficiency compared to diode-based designs.  
- **Small Footprint** – 8-pin TDFN package for space-constrained applications.  

This information is sourced from the manufacturer's datasheet.

Application Scenarios & Design Considerations

500mA, Low-Voltage Linear Regulator in Tiny QFN

Alternative Part Number

  • TPS7A7001DDAR --: Low-dropout linear regulator with similar current capability and adjustable output, suitable drop-in replacement in many designs.
  • LT1963AEQ --: Low-noise LDO regulator with comparable voltage and current ratings, good alternative when lower noise is needed.
  • MIC29302WU --: Adjustable high-current LDO regulator with similar package and thermal performance, widely available alternative.
  • TPS7A4700RGWR --: Low-noise LDO regulator with similar current capability and adjustable output, suitable replacement for MAX1935ETA in many power supply designs.
  • ADP1741ACPZ --: 1.5 A LDO regulator with adjustable output and low dropout, functionally similar and widely available as a substitute.
  • MIC39100-1.8WS --: Low-dropout regulator in a similar package class with comparable current handling, offering a practical alternative when exact MAX1935 availability is limited.

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