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TL497A from TI,Texas Instruments

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TL497A

Manufacturer: TI

Switching Voltage Regulator

Partnumber Manufacturer Quantity Availability
TL497A TI 165 In Stock

Description and Introduction

Switching Voltage Regulator The TL497A is a switching regulator controller manufactured by Texas Instruments (TI). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 12V  
- **Output Voltage Range:** Adjustable from 2V to 30V  
- **Switching Frequency:** 20kHz (typical)  
- **Output Current:** Up to 500mA (with external components)  
- **Operating Temperature Range:** 0°C to 70°C  
- **Package Type:** 8-pin DIP (Dual In-line Package)  

### **Descriptions:**  
The TL497A is a fixed-frequency switching regulator controller designed for step-up, step-down, and voltage-inverting applications. It provides efficient power conversion with minimal external components. The device includes an on-board oscillator, error amplifier, and switching transistor driver.

### **Features:**  
- **Adjustable Output Voltage** via external resistors  
- **Built-in Oscillator** for fixed-frequency operation  
- **Current Limiting** for overload protection  
- **Low Standby Current** for power-saving operation  
- **Wide Input Voltage Range** (4.5V to 12V)  
- **Suitable for Boost, Buck, and Inverting Configurations**  

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

Application Scenarios & Design Considerations

Switching Voltage Regulator

Alternative Part Number

  • MC34063A --: Industry-standard switching regulator IC with similar voltage-mode control and wide input range; commonly used as a drop-in functional substitute for TL497A in DC-DC converter designs.
  • LM2576 --: Simple switcher buck regulator from the same manufacturer, offering integrated switch and easy design, suitable replacement when a step-down conversion is needed instead of the TL497A.
  • LT1073 --: Micropower DC-DC converter with flexible topology (boost/buck/inverting) that can cover TL497A applications requiring wide input voltage and low quiescent current.

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