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STM5118ALB from ST,ST Microelectronics

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STM5118ALB

Manufacturer: ST

Low-cost interactive FTA set-top box decoder

Partnumber Manufacturer Quantity Availability
STM5118ALB ST 6400 In Stock

Description and Introduction

Low-cost interactive FTA set-top box decoder The STM5118ALB is a voltage regulator from STMicroelectronics. Below are the factual details from Ic-phoenix technical data files:

### **Manufacturer:**  
STMicroelectronics (ST)  

### **Specifications:**  
- **Output Voltage:** 1.8V  
- **Output Current:** 1A  
- **Input Voltage Range:** 2.5V to 5.5V  
- **Dropout Voltage:** 300mV (typical at 1A)  
- **Quiescent Current:** 75µA (typical)  
- **Package:** DFN6 (3x3mm)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Protection Features:** Thermal shutdown, current limit  

### **Descriptions:**  
The STM5118ALB is a low-dropout (LDO) linear voltage regulator designed for applications requiring a stable 1.8V supply. It provides high efficiency and low noise, making it suitable for power-sensitive devices such as portable electronics, IoT modules, and embedded systems.  

### **Features:**  
- Low dropout voltage (300mV typical at 1A)  
- Low quiescent current (75µA typical)  
- Stable with low-ESR ceramic capacitors  
- Thermal shutdown and current limit protection  
- Small DFN6 package for space-constrained designs  
- Wide input voltage range (2.5V to 5.5V)  

This information is strictly based on the provided knowledge base.

Application Scenarios & Design Considerations

Low-cost interactive FTA set-top box decoder

Alternative Part Number

  • L5973D --: Monolithic step-down switching regulator in the same ST power-management family, widely used as a drop-in substitute for STM5118ALB in buck converter designs with comparable input voltage range and current capability.
  • LM2596S-ADJ --: Industry-standard adjustable buck regulator with similar voltage and current ratings, easy to source and commonly used as a functional replacement when the ST part is unavailable.
  • MC34063A --: Versatile general-purpose DC-DC converter IC covering similar step-down applications, low cost and widely stocked, suitable as a fallback alternative with minor external component adjustments.

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