LD39300DT12-R

Product Overview

• Category: Integrated Circuit
• Use: Voltage Regulator
• Characteristics: High efficiency, low dropout voltage, compact size
• Package: TO-252-3 (DPAK)
• Essence: LD39300DT12-R is a voltage regulator integrated circuit designed to provide a stable output voltage for various electronic devices.
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Input Voltage Range: 2.5V - 7V
• Output Voltage: 1.2V
• Output Current: Up to 3A
• Dropout Voltage: 300mV at 3A
• Operating Temperature Range: -40°C to 125°C
• Quiescent Current: 100µA

Pin Configuration

The LD39300DT12-R has the following pin configuration:

```

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| | --| VIN GND |-- Pin 1: Input Voltage (VIN) / Ground (GND) --| VOUT NC |-- Pin 2: Output Voltage (VOUT) / No Connection (NC) --| EN PGND |-- Pin 3: Enable (EN) / Power Ground (PGND) |___________| ```

Functional Features

• High efficiency and low dropout voltage ensure minimal power loss.
• Built-in thermal shutdown protection prevents overheating.
• Short-circuit and overcurrent protection enhance device safety.
• Fast transient response enables quick voltage stabilization.

Advantages and Disadvantages

Advantages: - High efficiency leads to energy savings. - Compact size allows for easy integration into space-constrained designs. - Wide input voltage range provides versatility. - Excellent load and line regulation ensures stable output voltage.

Disadvantages: - Limited output current may not be suitable for high-power applications. - Requires external components for proper operation. - Sensitive to input voltage fluctuations.

Working Principles

The LD39300DT12-R operates as a linear voltage regulator. It regulates the output voltage by comparing it with an internal reference voltage. Any difference between the two voltages is amplified and used to control the pass transistor, which adjusts the output voltage accordingly. This feedback mechanism ensures a stable output voltage despite variations in the input voltage or load conditions.

Detailed Application Field Plans

The LD39300DT12-R finds applications in various electronic devices that require a stable 1.2V power supply. Some common application fields include:

1. Mobile devices: Smartphones, tablets, portable media players
2. Computer peripherals: Hard disk drives, optical drives, graphics cards
3. Industrial equipment: Sensors, actuators, control systems
4. Automotive electronics: Infotainment systems, navigation units, lighting controls
5. Consumer electronics: Digital cameras, handheld gaming consoles, audio amplifiers

Alternative Models

For those seeking alternative models with similar specifications and features, the following options are available:

1. LD39300DT15-R: Output voltage of 1.5V, otherwise identical to LD39300DT12-R.
2. LD39300DT33-R: Output voltage of 3.3V, otherwise identical to LD39300DT12-R.
3. LD39300DT50-R: Output voltage of 5.0V, otherwise identical to LD39300DT12-R.

These alternatives provide flexibility in choosing the appropriate voltage level for specific applications while maintaining the core characteristics of LD39300DT12-R.

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