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MAX1721EUT from MAXIM,MAXIM - Dallas Semiconductor

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MAX1721EUT

Manufacturer: MAXIM

SOT23 / Switched-Capacitor Voltage Inverters with Shutdown

Partnumber Manufacturer Quantity Availability
MAX1721EUT MAXIM 50 In Stock

Description and Introduction

SOT23 / Switched-Capacitor Voltage Inverters with Shutdown The MAX1721EUT is a low-dropout (LDO) linear regulator manufactured by Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Input Voltage Range:** 2.5V to 11.5V  
- **Output Voltage Options:** Fixed (1.5V, 1.8V, 2.5V, 2.8V, 3.0V, 3.3V, 5.0V) or Adjustable (1.25V to 11V)  
- **Output Current:** 150mA  
- **Dropout Voltage:** 120mV (typical) at 100mA load  
- **Quiescent Current:** 40µA (typical)  
- **Line Regulation:** 0.02%/V (typical)  
- **Load Regulation:** 0.05%/mA (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOT23-6  

### **Descriptions:**
The MAX1721EUT is a micropower LDO regulator designed for battery-powered applications. It provides stable voltage regulation with low dropout and minimal quiescent current, making it suitable for portable devices. It includes features like thermal shutdown and current limiting for protection.

### **Features:**
- Low dropout voltage (120mV typical at 100mA)  
- Ultra-low quiescent current (40µA typical)  
- Fixed or adjustable output voltage options  
- Thermal shutdown and current-limit protection  
- Stable with low-ESR ceramic capacitors  
- Small SOT23-6 package for space-constrained designs  

This information is based solely on the manufacturer's datasheet.

Application Scenarios & Design Considerations

SOT23 / Switched-Capacitor Voltage Inverters with Shutdown
Partnumber Manufacturer Quantity Availability
MAX1721EUT MAXIM 2450 In Stock

Description and Introduction

SOT23 / Switched-Capacitor Voltage Inverters with Shutdown The MAX1721EUT is a low-power, step-up DC-DC converter manufactured by Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Input Voltage Range:** 0.7V to 5.5V  
- **Output Voltage:** Adjustable from 2V to 5.5V (fixed 3.3V option available)  
- **Output Current:** Up to 150mA (depending on input/output conditions)  
- **Efficiency:** Up to 94%  
- **Switching Frequency:** 500kHz  
- **Quiescent Current:** 12µA (typical)  
- **Shutdown Current:** <1µA  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOT23-6  

### **Descriptions:**
- The MAX1721EUT is a high-efficiency, low-quiescent-current step-up DC-DC converter designed for battery-powered applications.  
- It features a low startup voltage (0.7V), making it suitable for single-cell or dual-cell alkaline/NiMH battery systems.  
- The device includes an internal 0.5A N-channel MOSFET switch and requires minimal external components.  

### **Features:**
- **Ultra-Low Input Voltage Operation:** Starts up with inputs as low as 0.7V.  
- **Adjustable/Fixed Output Voltage:** Supports adjustable output via external resistors or fixed 3.3V output.  
- **Low Quiescent Current:** 12µA (typical) extends battery life.  
- **Internal Soft-Start:** Reduces inrush current during startup.  
- **Automatic Pulse-Frequency Modulation (PFM):** Improves efficiency at light loads.  
- **Compact Package:** SOT23-6 footprint for space-constrained applications.  

This information is sourced from the official MAX1721EUT datasheet by Maxim Integrated.

Application Scenarios & Design Considerations

SOT23 / Switched-Capacitor Voltage Inverters with Shutdown

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