NCP803SN438T1G

Product Overview

Category

NCP803SN438T1G belongs to the category of voltage regulators.

Use

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

Characteristics

• Voltage regulation: The NCP803SN438T1G provides precise voltage regulation, ensuring a stable output voltage.
• Low dropout voltage: It operates with a low dropout voltage, minimizing power dissipation.
• Low quiescent current: The regulator has a low quiescent current, making it suitable for battery-powered applications.
• Thermal shutdown protection: It incorporates thermal shutdown protection to prevent damage due to excessive heat.
• Short-circuit protection: The NCP803SN438T1G includes short-circuit protection, safeguarding the circuit from damage in case of a short circuit.

Package

The NCP803SN438T1G comes in a small surface-mount package, typically a SOT-23-5 package.

Essence

The essence of this product lies in its ability to provide stable and regulated voltage output, ensuring reliable operation of electronic devices.

Packaging/Quantity

The NCP803SN438T1G is usually packaged in reels or tape and reel packaging. Each reel contains a specific quantity of regulators, typically 3000 units.

Specifications

• Input voltage range: 2.5V to 5.5V
• Output voltage: 4.38V
• Dropout voltage: 200mV at 100mA
• Quiescent current: 30µA
• Operating temperature range: -40°C to +85°C

Detailed Pin Configuration

The NCP803SN438T1G has five pins arranged as follows:

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Pin 1: Enable (EN) Pin 2: Ground (GND) Pin 3: Output (OUT) Pin 4: No Connection (NC) Pin 5: Input (IN)

Functional Features

• Voltage regulation: The NCP803SN438T1G maintains a constant output voltage even when the input voltage fluctuates.
• Low dropout voltage: It operates with a low dropout voltage, minimizing power dissipation and maximizing efficiency.
• Enable pin: The enable pin allows for easy control of the regulator's operation. When pulled low, the regulator enters a low-power shutdown mode.
• Thermal shutdown protection: The regulator includes thermal shutdown protection, which shuts down the device if the temperature exceeds a safe threshold.
• Short-circuit protection: In case of a short circuit, the regulator limits the current to protect the circuit.

Advantages and Disadvantages

Advantages

• Precise voltage regulation ensures stable performance of electronic devices.
• Low dropout voltage minimizes power dissipation.
• Low quiescent current makes it suitable for battery-powered applications.
• Thermal shutdown and short-circuit protection enhance reliability.

Disadvantages

• Limited output voltage options (fixed at 4.38V).
• Not suitable for applications requiring adjustable output voltage.

Working Principles

The NCP803SN438T1G is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to maintain a constant output voltage. The regulator operates in a feedback loop, continuously monitoring and adjusting the output voltage.

Detailed Application Field Plans

The NCP803SN438T1G finds applications in various electronic devices and systems, including but not limited to: - Battery-powered devices: Portable electronics, wearable devices, and IoT sensors. - Automotive electronics: Infotainment systems, lighting controls, and engine management systems. - Industrial equipment: Control systems, motor drives, and power supplies. - Communication devices: Wireless routers, modems, and network switches.

Detailed and Complete Alternative Models

1. NCP803SN438T2G: Similar to NCP803SN438T1G but with a different package (SOT-563).
2. NCP803SN438T3G: Similar to NCP803SN438T1G but with a different output voltage (4.38V).

These alternative models offer similar functionality and characteristics, providing options for different application requirements.

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