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LM7905 from ST,ST Microelectronics

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15.625ms

LM7905

Manufacturer: ST

3-terminal 1A negative voltage regulator. Output current up to 1A. Output voltage -5V(typ).

Partnumber Manufacturer Quantity Availability
LM7905 ST 500 In Stock

Description and Introduction

3-terminal 1A negative voltage regulator. Output current up to 1A. Output voltage -5V(typ). The LM7905 is a fixed voltage regulator manufactured by STMicroelectronics (ST). Below are the specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:  

### **Specifications:**  
- **Output Voltage:** -5V  
- **Output Current:** Up to 1.5A  
- **Input Voltage Range:** -7V to -25V (for stable -5V output)  
- **Dropout Voltage:** 2V (typical)  
- **Line Regulation:** 60mV (typical)  
- **Load Regulation:** 100mV (typical)  
- **Operating Temperature Range:**  
  - **LM7905 (Commercial):** 0°C to +125°C  
  - **LM7905C (Industrial):** -40°C to +125°C  
- **Package Options:** TO-220, TO-220FP, D²PAK  

### **Descriptions:**  
- The LM7905 is a negative voltage regulator that provides a fixed -5V output.  
- It is designed to deliver a stable output voltage with minimal external components.  
- Includes built-in thermal overload protection, short-circuit protection, and safe operating area (SOA) protection.  

### **Features:**  
- Fixed -5V output voltage  
- Thermal shutdown protection  
- Short-circuit current limiting  
- Internal current limiting for overload protection  
- No external components required for operation (except input/output capacitors for stability)  

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

Partnumber Manufacturer Quantity Availability
LM7905 NS 500 In Stock

Description and Introduction

3-terminal 1A negative voltage regulator. Output current up to 1A. Output voltage -5V(typ). The LM7905 is a negative voltage regulator manufactured by National Semiconductor (NS).  

### **Specifications:**  
- **Output Voltage:** -5V  
- **Output Current:** Up to 1A  
- **Input Voltage Range:** -7V to -25V (recommended)  
- **Dropout Voltage:** 2V (typical)  
- **Line Regulation:** 0.3% (typical)  
- **Load Regulation:** 15mV (typical)  
- **Operating Temperature Range:** 0°C to +125°C  
- **Package Options:** TO-220, TO-3  

### **Descriptions and Features:**  
- Fixed -5V output voltage  
- Internal thermal overload protection  
- Short-circuit protection  
- High ripple rejection  
- No external components required for operation  
- Designed for use in negative voltage power supply circuits  

The LM7905 is commonly used in power supply applications requiring a stable -5V output.

Partnumber Manufacturer Quantity Availability
LM7905 PJ 4800 In Stock

Description and Introduction

3-terminal 1A negative voltage regulator. Output current up to 1A. Output voltage -5V(typ). The LM7905 is a negative voltage regulator manufactured by PJ (Prescott Joule). Here are its specifications, descriptions, and features:  

### **Specifications:**  
- **Output Voltage:** -5V  
- **Output Current:** Up to 1A  
- **Input Voltage Range:** -7V to -25V  
- **Dropout Voltage:** 2V (typical)  
- **Line Regulation:** 60mV (typical)  
- **Load Regulation:** 100mV (typical)  
- **Operating Temperature Range:** 0°C to +125°C  
- **Package Type:** TO-220  

### **Descriptions:**  
- The LM7905 is a fixed negative voltage regulator designed to provide a stable -5V output.  
- It includes built-in thermal overload protection and short-circuit current limiting.  
- Suitable for use in power supply circuits requiring a regulated negative voltage.  

### **Features:**  
- **Fixed Negative Output Voltage:** -5V  
- **Thermal Overload Protection:** Prevents damage due to excessive heat.  
- **Short-Circuit Protection:** Safeguards against output shorts.  
- **High Ripple Rejection:** Reduces input noise.  
- **No External Components Required:** Only input and output capacitors are needed for stability.  

This information is based on the manufacturer's datasheet for the LM7905 by PJ.

Partnumber Manufacturer Quantity Availability
LM7905 10 In Stock

Description and Introduction

3-terminal 1A negative voltage regulator. Output current up to 1A. Output voltage -5V(typ). The LM7905 is a fixed negative voltage regulator manufactured by several companies, including Texas Instruments, STMicroelectronics, and ON Semiconductor.  

### **Specifications:**  
- **Output Voltage:** -5V  
- **Output Current:** Up to 1A (with proper heat sinking)  
- **Input Voltage Range:** -7V to -25V (recommended)  
- **Dropout Voltage:** ~2V (minimum input-output differential)  
- **Line Regulation:** 60mV (typical)  
- **Load Regulation:** 120mV (typical)  
- **Operating Temperature Range:**  
  - **Commercial (LM7905C):** 0°C to +125°C  
  - **Military (LM7905M):** -55°C to +150°C  
- **Package Types:** TO-220, TO-220FP, TO-3, D²PAK  

### **Descriptions:**  
The LM7905 is a three-terminal negative voltage regulator designed to provide a stable -5V output. It includes internal current limiting, thermal shutdown, and safe operating area protection, making it robust against overload conditions.  

### **Features:**  
- Fixed -5V output  
- Internal thermal overload protection  
- Short-circuit current limiting  
- No external components required for basic operation  
- High ripple rejection ratio (~62dB)  

This regulator is commonly used in power supply circuits where a stable negative voltage is required.

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