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MAX1921EUT33 from MAXIM,MAXIM - Dallas Semiconductor

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MAX1921EUT33

Manufacturer: MAXIM

Low-Voltage, 400mA Step-Down DC-DC Converters in SOT23

Partnumber Manufacturer Quantity Availability
MAX1921EUT33 MAXIM 501 In Stock

Description and Introduction

Low-Voltage, 400mA Step-Down DC-DC Converters in SOT23 The MAX1921EUT33 is a low-dropout (LDO) linear regulator manufactured by Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features based on factual data:

### **Specifications:**
- **Output Voltage:** 3.3V (fixed)  
- **Output Current:** 150mA  
- **Dropout Voltage:** 130mV (typical at 100mA load)  
- **Input Voltage Range:** 2.5V to 5.5V  
- **Quiescent Current:** 40µA (typical)  
- **Load Regulation:** ±0.05% (typical)  
- **Line Regulation:** ±0.02% (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOT23-6  

### **Descriptions:**
- The MAX1921EUT33 is a low-noise, low-dropout linear regulator designed for battery-powered and portable applications.  
- It provides a stable 3.3V output with minimal power loss, making it suitable for space-constrained designs.  
- Includes features like thermal shutdown and current limiting for protection.  

### **Features:**
- **Low Dropout Voltage:** Ensures efficient operation even with small input-output differentials.  
- **Low Quiescent Current:** Extends battery life in portable devices.  
- **Thermal Shutdown Protection:** Prevents damage from overheating.  
- **Current Limit Protection:** Safeguards against excessive load currents.  
- **Stable with Low-ESR Capacitors:** Works with ceramic capacitors (≥1µF).  
- **No External Components Required:** Simplifies design and reduces board space.  

This information is derived from the manufacturer's datasheet. For detailed electrical characteristics and application notes, refer to the official documentation.

Application Scenarios & Design Considerations

Low-Voltage, 400mA Step-Down DC-DC Converters in SOT23

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