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LT1129IST-5 from LINEAR

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LT1129IST-5

Manufacturer: LINEAR

Micropower Low Dropout Regulators with Shutdown

Partnumber Manufacturer Quantity Availability
LT1129IST-5,LT1129IST5 LINEAR 66 In Stock

Description and Introduction

Micropower Low Dropout Regulators with Shutdown The LT1129IST-5 is a low dropout (LDO) linear regulator manufactured by Linear Technology (now part of Analog Devices).  

### **Specifications:**  
- **Output Voltage:** 5V (fixed)  
- **Output Current:** 700mA  
- **Dropout Voltage:** 300mV (typical) at full load  
- **Input Voltage Range:** Up to 20V  
- **Line Regulation:** 0.02%/V (typical)  
- **Load Regulation:** 0.05%/mA (typical)  
- **Quiescent Current:** 1mA (typical)  
- **Shutdown Current:** <1µA  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** SOT-223 (ST package)  

### **Descriptions and Features:**  
- **Low Dropout Voltage:** Ensures efficient regulation even with small input-output differentials.  
- **Low Quiescent Current:** Suitable for battery-powered applications.  
- **Thermal Protection:** Built-in thermal shutdown prevents damage from overheating.  
- **Current Limit Protection:** Safeguards against excessive output current.  
- **Stable with Low-ESR Capacitors:** Works reliably with ceramic or tantalum capacitors.  
- **Fast Transient Response:** Maintains stable output under dynamic load conditions.  
- **Applications:** Battery-powered devices, portable electronics, industrial controls, and embedded systems.  

The LT1129IST-5 is designed for high-performance, low-noise power regulation in space-constrained applications.

Application Scenarios & Design Considerations

Micropower Low Dropout Regulators with Shutdown
Partnumber Manufacturer Quantity Availability
LT1129IST-5,LT1129IST5 LT 450 In Stock

Description and Introduction

Micropower Low Dropout Regulators with Shutdown The LT1129IST-5 is a low dropout (LDO) voltage regulator manufactured by Linear Technology (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Output Voltage:** 5V (fixed)  
- **Output Current:** 700mA  
- **Dropout Voltage:** 300mV (typical at 700mA load)  
- **Input Voltage Range:** Up to 20V  
- **Line Regulation:** 0.02% (typical)  
- **Load Regulation:** 0.05% (typical)  
- **Quiescent Current:** 800µA (typical)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** SOT-223 (Surface Mount)  

### **Descriptions:**
- The LT1129IST-5 is a high-performance LDO regulator designed for applications requiring stable and low-noise power.  
- It features low dropout voltage, making it suitable for battery-powered and high-efficiency systems.  
- Includes built-in protection features such as current limiting and thermal shutdown.  

### **Features:**
- **Low Dropout Voltage:** Ensures efficient operation with minimal headroom.  
- **Low Noise Output:** Suitable for sensitive analog circuits.  
- **Fast Transient Response:** Maintains stability under varying load conditions.  
- **Thermal Shutdown & Current Limit Protection:** Enhances reliability.  
- **Stable with Low-ESR Capacitors:** Works with ceramic or tantalum output capacitors.  

This regulator is commonly used in portable electronics, instrumentation, and industrial applications.  

(Source: Linear Technology/Analog Devices datasheet)

Application Scenarios & Design Considerations

Micropower Low Dropout Regulators with Shutdown

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