LD29080PT50R

Product Overview

• Category: Integrated Circuit
• Use: Voltage Regulator
• Characteristics: Low Dropout, 2.5V Fixed Output Voltage
• Package: TO-252 (DPAK)
• Essence: LD29080PT50R is a voltage regulator integrated circuit designed to provide a stable and regulated output voltage of 2.5V with low dropout characteristics.
• Packaging/Quantity: Available in tape and reel packaging, with 2500 units per reel.

Specifications

• Input Voltage Range: 2.7V to 26V
• Output Voltage: 2.5V
• Output Current: Up to 1A
• Dropout Voltage: 300mV at 1A
• Quiescent Current: 75µA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LD29080PT50R has three pins:

1. VIN (Pin 1): Input voltage pin.
2. GND (Pin 2): Ground reference pin.
3. VOUT (Pin 3): Output voltage pin.

Functional Features

• Low dropout voltage: The LD29080PT50R exhibits a low dropout voltage of only 300mV at 1A output current, ensuring efficient power conversion.
• Stable output voltage: It provides a fixed output voltage of 2.5V, which remains constant even under varying input voltages and load conditions.
• Low quiescent current: With a quiescent current of only 75µA, it minimizes power consumption when the load is light or idle.
• Thermal shutdown protection: The IC incorporates thermal shutdown protection, preventing damage due to excessive temperature.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient power conversion. - Stable output voltage for reliable operation. - Low quiescent current minimizes power consumption. - Thermal shutdown protection prevents damage.

Disadvantages: - Limited to a fixed output voltage of 2.5V, not suitable for applications requiring different voltages.

Working Principles

The LD29080PT50R is based on a linear voltage regulator architecture. It utilizes a pass transistor to regulate the output voltage. The input voltage is stepped down to the desired output voltage using a voltage divider network and feedback loop. The internal circuitry ensures that the output voltage remains constant even with varying input voltages and load conditions.

Detailed Application Field Plans

The LD29080PT50R is commonly used in various electronic devices and applications, including:

1. Battery-powered devices: It can be employed in portable electronics such as smartphones, tablets, and handheld gaming consoles to provide a stable 2.5V supply voltage.
2. Industrial equipment: The IC finds application in industrial control systems, sensors, and instrumentation where a regulated voltage source is required.
3. Automotive electronics: It can be utilized in automotive applications like infotainment systems, dashboard displays, and lighting controls.
4. Power management modules: The LD29080PT50R can be integrated into power management modules to regulate voltage levels for microcontrollers, sensors, and other components.

Detailed and Complete Alternative Models

1. LM1117-2.5: A popular alternative with similar specifications and package options.
2. LT1761-2.5: Another alternative offering low dropout voltage and fixed 2.5V output.
3. TPS72501: An alternative model from Texas Instruments providing a fixed 2.5V output voltage with low dropout characteristics.

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