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SPX1117U from SIPEX

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SPX1117U

Manufacturer: SIPEX

800mA Low Dropout Voltage Regulator

Partnumber Manufacturer Quantity Availability
SPX1117U SIPEX 1721 In Stock

Description and Introduction

800mA Low Dropout Voltage Regulator The SPX1117U is a low dropout (LDO) voltage regulator manufactured by Exar Corporation (now part to MaxLinear). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:  

### **Manufacturer:** Exar (now MaxLinear)  
### **Part Number:** SPX1117U  

### **Description:**  
The SPX1117U is a series of LDO voltage regulators designed to provide up to 1A of output current with a low dropout voltage. It is available in fixed and adjustable output voltage versions.  

### **Key Features:**  
- **Output Current:** Up to 1A  
- **Low Dropout Voltage:** Typically 1.1V at full load  
- **Output Voltage Options:**  
  - Fixed: 1.2V, 1.5V, 1.8V, 2.5V, 2.85V, 3.0V, 3.3V, 5.0V  
  - Adjustable: 1.25V to 5.0V (using external resistors)  
- **High Accuracy:** ±1% (for fixed voltage versions)  
- **Thermal Overload Protection:** Yes  
- **Short-Circuit Protection:** Yes  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package Options:** TO-252 (DPAK), TO-263 (D2PAK), SOT-223  

### **Applications:**  
- Power supplies for microcontrollers, FPGAs, and DSPs  
- Battery-powered devices  
- Post-regulation for switching power supplies  

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

Application Scenarios & Design Considerations

800mA Low Dropout Voltage Regulator

Alternative Part Number

  • LM1117MPX-3.3 --: Pin-compatible 800mA low-dropout linear regulator in the same SOT-223 package with equivalent 3.3V fixed output, widely available and well documented.
  • AMS1117-3.3 --: Direct functional equivalent 1A LDO regulator with the same pinout and package options, very common and low cost.
  • LD1117S33TR --: 800mA low-dropout regulator with matching pinout and 3.3V output, a reliable drop-in substitute from a major manufacturer.

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