LTC1729CS8-8.2#TRPBF

Product Overview

Category

LTC1729CS8-8.2#TRPBF belongs to the category of voltage regulators.

Use

This product is commonly used in electronic circuits to regulate and stabilize voltage levels.

Characteristics

• Input Voltage Range: 2.7V to 36V
• Output Voltage: 8.2V
• Output Current: Up to 500mA
• Dropout Voltage: 300mV at 500mA
• Low Quiescent Current: 75µA
• Shutdown Mode: <1µA
• Package Type: 8-Lead SOIC
• Operating Temperature Range: -40°C to 125°C

Package and Quantity

LTC1729CS8-8.2#TRPBF is available in an 8-Lead SOIC package. It is typically sold in reels or tubes containing a specific quantity, such as 250 units per reel.

Specifications

• Input Voltage Range: 2.7V to 36V
• Output Voltage: 8.2V ±2%
• Output Current: Up to 500mA
• Dropout Voltage: 300mV at 500mA
• Quiescent Current: 75µA
• Shutdown Mode Current: <1µA
• Line Regulation: ±0.02% (Typical)
• Load Regulation: ±0.05% (Typical)
• Ripple Rejection: 70dB (Typical)
• Operating Temperature Range: -40°C to 125°C

Pin Configuration

The LTC1729CS8-8.2#TRPBF has the following pin configuration:

```

---

| | --| VIN GND |-- Pin 1 --| VOUT GND |-- Pin 2 --| VOUT GND |-- Pin 3 --| SHDN GND |-- Pin 4 --| FB GND |-- Pin 5 --| NC VOUT |-- Pin 6 --| NC VOUT |-- Pin 7 --| VIN VOUT |-- Pin 8 |___________| ```

Functional Features

• Wide input voltage range allows for versatile applications.
• Low dropout voltage ensures efficient power conversion.
• Low quiescent current minimizes power consumption.
• Shutdown mode reduces power consumption to an extremely low level.
• Excellent line and load regulation provide stable output voltage.
• High ripple rejection improves the quality of the regulated output.

Advantages and Disadvantages

Advantages

• Wide input voltage range enables compatibility with various power sources.
• Low dropout voltage ensures efficient power conversion even with low input voltages.
• Low quiescent current minimizes power consumption, making it suitable for battery-powered devices.
• Shutdown mode reduces power consumption to an extremely low level during standby periods.
• Excellent line and load regulation provide a stable output voltage under varying conditions.
• High ripple rejection enhances the quality of the regulated output signal.

Disadvantages

• Limited output current capacity may not be sufficient for high-power applications.
• The 8-Lead SOIC package may require additional space on the circuit board compared to smaller packages.

Working Principles

The LTC1729CS8-8.2#TRPBF is a linear voltage regulator that uses a feedback mechanism to maintain a constant output voltage. It operates by comparing the output voltage with a reference voltage and adjusting the internal pass transistor accordingly. This feedback loop ensures that the output voltage remains stable despite variations in the input voltage or load conditions.

When the input voltage exceeds the desired output voltage plus the dropout voltage, the regulator operates in a linear mode, providing a regulated output voltage. In cases where the input voltage falls below this threshold, the regulator enters dropout mode, and the output voltage may decrease slightly.

The shutdown pin allows the user to disable the regulator, reducing power consumption to an extremely low level. This feature is particularly useful in battery-powered devices to prolong battery life during standby periods.

Detailed Application Field Plans

The LTC1729CS8-8.2#TRPBF can be used in various applications that require a stable and regulated voltage supply. Some potential application fields include:

1. Battery-Powered Devices: Portable electronic devices such as smartphones, tablets, and wearable devices often rely on battery power. The LTC1729CS8-8.2#TRPBF can regulate the voltage supplied to these devices, ensuring consistent performance and extending battery life.

2. Industrial Control Systems: In industrial settings, control systems often require precise and stable voltage levels. The LTC1729CS8-8.2#TRPBF can be used in these systems to provide reliable power for sensors, actuators, and other components.

3. Automotive Electronics: The automotive