SC4519STRT

Product Overview

• Category: Integrated Circuit
• Use: Power Management
• Characteristics: High Efficiency, Low Power Consumption
• Package: Surface Mount Technology (SMT)
• Essence: Voltage Regulator
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: 0.8V to 3.6V
• Output Current: Up to 1.5A
• Quiescent Current: 50µA (typical)
• Switching Frequency: 1.2MHz (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The SC4519STRT has the following pin configuration:

1. VIN: Input Voltage
2. GND: Ground
3. EN: Enable Pin
4. FB: Feedback Pin
5. SW: Switching Node
6. VOUT: Output Voltage

Functional Features

• High Efficiency: The SC4519STRT utilizes advanced power management techniques to achieve high efficiency levels, reducing power wastage.
• Low Power Consumption: With a quiescent current of only 50µA, the device minimizes power consumption during standby or low-load conditions.
• Fast Transient Response: The voltage regulator provides a fast and stable response to sudden changes in load current, ensuring reliable performance.
• Overcurrent Protection: The device incorporates overcurrent protection circuitry to safeguard against excessive current flow, preventing damage to the system.

Advantages and Disadvantages

Advantages: - High efficiency results in reduced power consumption and longer battery life. - Compact SMT package allows for easy integration into space-constrained designs. - Wide input voltage range enables compatibility with various power sources. - Fast transient response ensures stable operation under dynamic load conditions.

Disadvantages: - Limited output current may not be suitable for high-power applications. - Operating temperature range may restrict usage in extreme environments.

Working Principles

The SC4519STRT is a voltage regulator that converts an input voltage within the range of 2.7V to 5.5V into a regulated output voltage between 0.8V and 3.6V. It employs a switching regulator topology, which efficiently steps down the input voltage by rapidly switching an internal power transistor. This switching action minimizes power dissipation and allows for higher efficiency compared to linear regulators.

Detailed Application Field Plans

The SC4519STRT is commonly used in various applications, including but not limited to:

1. Portable Electronic Devices: The voltage regulator is ideal for powering smartphones, tablets, and other battery-operated devices due to its high efficiency and low power consumption.
2. IoT Devices: With its compact package and wide input voltage range, the SC4519STRT is well-suited for IoT devices that require efficient power management in constrained spaces.
3. Industrial Control Systems: The device's fast transient response and overcurrent protection make it suitable for use in industrial control systems, ensuring stable and reliable operation.

Detailed and Complete Alternative Models

1. SC4520STRT: Similar to SC4519STRT, but with a higher output current capability of up to 2A.
2. SC4508STRT: A lower-cost alternative with slightly reduced efficiency and a narrower input voltage range (2.7V to 4.5V).
3. SC4532STRT: Designed for higher power applications, offering an output current of up to 3A.

These alternative models provide flexibility in choosing the most suitable voltage regulator based on specific requirements and constraints.

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