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MAX1921EUT25+T from MAXIM,MAXIM - Dallas Semiconductor

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MAX1921EUT25+T

Manufacturer: MAXIM, MAX

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

Partnumber Manufacturer Quantity Availability
MAX1921EUT25+T,MAX1921EUT25T MAXIM, MAX 541 In Stock

Description and Introduction

Low-Voltage, 400mA Step-Down DC-DC Converters in SOT23 The MAX1921EUT25+T is a voltage regulator manufactured by Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features based on factual data:  

### **Manufacturer:** MAXIM (now Analog Devices)  
### **Part Number:** MAX1921EUT25+T  
### **Category:** Voltage Regulator - Linear  

### **Key Specifications:**  
- **Output Voltage:** 2.5V (fixed)  
- **Output Current:** 150mA  
- **Input Voltage Range:** 2.5V to 5.5V  
- **Dropout Voltage:** 110mV (typical at 100mA load)  
- **Quiescent Current:** 40µA (typical)  
- **Load Regulation:** ±0.05% (typical)  
- **Line Regulation:** ±0.02%/V (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOT-23-6  

### **Descriptions:**  
The MAX1921EUT25+T is a low-dropout (LDO) linear voltage regulator designed for low-power applications. It provides a fixed 2.5V output with high accuracy and low quiescent current, making it suitable for battery-powered devices.  

### **Features:**  
- Ultra-low dropout voltage (110mV typical at 100mA)  
- Low quiescent current (40µA typical)  
- Stable with low-ESR ceramic capacitors  
- Thermal shutdown and current-limit protection  
- No external components required (beyond input/output capacitors)  
- Small SOT-23-6 package for space-constrained designs  

This information is based solely on the manufacturer's datasheet. No additional suggestions or guidance are provided.

Application Scenarios & Design Considerations

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

Alternative Part Number

  • TPS62203DBVR --: Pin-compatible step-down converter in SOT-23-6 with similar 2.5V fixed output and high efficiency, widely available and cost-effective.
  • LTC3406ES5-2.5 --: 2.5V fixed-output synchronous buck regulator in TSOT-23-5 with comparable current capability and low quiescent current.
  • AP3211KTR-G1 --: Compact SOT-23-6 step-down converter offering similar input range and 2.5V-class output, suitable as a lower-cost alternative.
  • LTC3406ES5-2.5#PBF --: Low-noise synchronous buck regulator in TSOT-23 with 2.5V fixed output, good drop-in functional match for portable applications.

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