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TL497AC from TI,Texas Instruments

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TL497AC

Manufacturer: TI

SWITCHING VOLTAGE REGULATORS

Partnumber Manufacturer Quantity Availability
TL497AC TI 1105 In Stock

Description and Introduction

SWITCHING VOLTAGE REGULATORS The TL497AC is a switching regulator manufactured by Texas Instruments (TI). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:  

### **Manufacturer:** Texas Instruments (TI)  
### **Part Number:** TL497AC  

### **Description:**  
The TL497AC is a switching regulator IC designed for step-up, step-down, and inverting voltage regulation applications. It operates in a fixed-frequency mode and includes an onboard power switch, oscillator, and control circuitry.  

### **Key Features:**  
- **Input Voltage Range:** 4.5V to 12V  
- **Output Voltage Range:** Adjustable (depends on external components)  
- **Switching Frequency:** 20 kHz (typical)  
- **Output Current:** Up to 500 mA (depending on configuration)  
- **On-Chip Power Switch:** NPN Darlington transistor with 1.5A peak current capability  
- **Operating Modes:** Step-up (boost), step-down (buck), and inverting configurations  
- **Duty Cycle Control:** Adjustable for optimized efficiency  
- **Thermal Protection:** Built-in thermal shutdown  
- **Package Type:** 8-pin DIP (Dual In-line Package)  

### **Applications:**  
- DC-DC voltage conversion  
- Battery-powered systems  
- Portable instruments  
- Power supplies  

This information is based on TI's official documentation for the TL497AC. For detailed circuit configurations and application notes, refer to the datasheet.

Application Scenarios & Design Considerations

SWITCHING VOLTAGE REGULATORS
Partnumber Manufacturer Quantity Availability
TL497AC 250 In Stock

Description and Introduction

SWITCHING VOLTAGE REGULATORS The TL497AC is a switching regulator controller manufactured by Texas Instruments.  

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 12V  
- **Output Voltage Range:** Adjustable from 1.2V to 30V  
- **Switching Frequency:** 20 kHz (typical)  
- **Output Current:** Up to 500 mA (depends on external components)  
- **Operating Temperature Range:** 0°C to 70°C  
- **Package Type:** 8-pin PDIP (Plastic Dual In-line Package)  

### **Descriptions:**  
- The TL497AC is a pulse-width modulation (PWM) controller designed for step-up (boost), step-down (buck), and voltage-inverting applications.  
- It includes an internal power switch, oscillator, and error amplifier for regulating output voltage.  
- Requires minimal external components for operation.  

### **Features:**  
- Adjustable output voltage via external resistors  
- Built-in current limiting and thermal shutdown protection  
- Low standby current consumption  
- Can be configured for boost, buck, or inverting topologies  
- Compatible with external pass transistors for higher current applications  

For detailed electrical characteristics and application circuits, refer to the official Texas Instruments datasheet.

Application Scenarios & Design Considerations

SWITCHING VOLTAGE REGULATORS

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