S-817B53AY-Z2-U

Product Overview

Category

S-817B53AY-Z2-U belongs to the category of voltage regulators.

Use

This product is commonly used for voltage regulation in various electronic devices and circuits.

Characteristics

• Input Voltage Range: 1.8V to 6.0V
• Output Voltage Range: 1.5V to 5.5V
• Maximum Output Current: 50mA
• Low Quiescent Current: 0.1µA (typ.)
• High Ripple Rejection: 70dB (typ.)
• Low Dropout Voltage: 160mV (typ.)
• Built-in Overcurrent Protection
• Small Package Size: SOT-23-5

Package and Quantity

The S-817B53AY-Z2-U comes in a SOT-23-5 package. It is typically sold in reels containing 3000 units per reel.

Specifications

• Input Voltage Range: 1.8V to 6.0V
• Output Voltage Range: 1.5V to 5.5V
• Maximum Output Current: 50mA
• Quiescent Current: 0.1µA (typ.)
• Dropout Voltage: 160mV (typ.)
• Ripple Rejection: 70dB (typ.)
• Operating Temperature Range: -40°C to +85°C
• Package Type: SOT-23-5

Pin Configuration

The S-817B53AY-Z2-U has the following pin configuration:

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Pin 1: VOUT (Output Voltage) Pin 2: GND (Ground) Pin 3: VIN (Input Voltage) Pin 4: NC (No Connection) Pin 5: CE (Control Enable)

Functional Features

• Voltage regulation: The S-817B53AY-Z2-U provides a stable output voltage within the specified range, regardless of input voltage fluctuations.
• Low quiescent current: With a typical quiescent current of 0.1µA, this voltage regulator minimizes power consumption when the load is light.
• Overcurrent protection: The built-in overcurrent protection feature safeguards the circuit from excessive current flow, preventing damage to the device.
• High ripple rejection: The S-817B53AY-Z2-U exhibits excellent ripple rejection characteristics, ensuring a clean and stable output voltage even in the presence of noise or fluctuations in the input voltage.

Advantages and Disadvantages

Advantages

• Wide input voltage range allows for versatile applications.
• Low quiescent current minimizes power consumption.
• Small package size enables space-saving designs.
• Built-in overcurrent protection enhances circuit reliability.
• High ripple rejection ensures a stable output voltage.

Disadvantages

• Limited maximum output current of 50mA may not be suitable for high-power applications.
• Dropout voltage of 160mV may result in a significant voltage drop across the regulator.

Working Principles

The S-817B53AY-Z2-U operates based on the principle of linear voltage regulation. It utilizes a pass transistor to regulate the output voltage by adjusting the resistance between the input and output terminals. When the input voltage exceeds the desired output voltage, the pass transistor reduces the resistance, allowing excess voltage to bypass the regulator. Conversely, when the input voltage drops below the desired output voltage, the pass transistor increases the resistance, compensating for the voltage difference.

Detailed Application Field Plans

The S-817B53AY-Z2-U finds applications in various electronic devices and circuits that require stable voltage regulation. Some potential application fields include:

1. Battery-powered devices: This voltage regulator can be used in portable electronic devices, such as smartphones, tablets, and wearable devices, to ensure a stable power supply despite fluctuations in battery voltage.

2. IoT devices: Internet of Things (IoT) devices often operate on low-power microcontrollers or sensors. The S-817B53AY-Z2-U can provide reliable voltage regulation for these devices, ensuring accurate and consistent operation.

3. Automotive electronics: In automotive applications, where voltage fluctuations are common due to the vehicle's electrical system, this voltage regulator can be employed to maintain a stable voltage supply to sensitive components like sensors, control modules, and displays.

4. Industrial control systems: The S-817B53AY-Z2-U can be utilized in various industrial control systems, including PLCs (Programmable Logic Controllers), motor drives, and instrumentation, to ensure precise and stable voltage levels for optimal performance.

Detailed and Complete Alternative Models

1. S-817A33ANB-CUPT2G: This alternative model offers similar specifications and features but has a different package type (SOT-89-3). It is suitable for applications requiring higher