S-1206B38-U3T1U

Basic Information Overview

Category: Electronic Component
Use: Voltage Regulator
Characteristics: High efficiency, low power consumption
Package: SOT-23-5
Essence: Step-down voltage regulator
Packaging/Quantity: Tape and Reel, 3000 pieces per reel

Specifications

• Input Voltage Range: 4.5V to 18V
• Output Voltage: 3.3V
• Output Current: 600mA
• Dropout Voltage: 200mV (typical)
• Quiescent Current: 50µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The S-1206B38-U3T1U has a total of five pins arranged in the following configuration:

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Pin 1: VIN (Input Voltage)
Pin 2: GND (Ground)
Pin 3: EN (Enable)
Pin 4: FB (Feedback)
Pin 5: VOUT (Output Voltage)

Functional Features

• Step-down voltage regulation for efficient power conversion
• Low dropout voltage ensures stable output even with varying input voltage
• Enable pin allows for easy on/off control of the regulator
• Feedback pin provides accurate output voltage regulation

Advantages and Disadvantages

Advantages: - High efficiency resulting in reduced power consumption - Wide input voltage range for versatile applications - Small package size (SOT-23-5) for space-constrained designs - Low quiescent current for improved energy efficiency

Disadvantages: - Limited output current (600mA) may not be suitable for high-power applications - Dropout voltage of 200mV may affect performance in low input voltage scenarios

Working Principles

The S-1206B38-U3T1U is a step-down voltage regulator that converts higher input voltages to a stable 3.3V output. It utilizes a switching regulator topology to achieve high efficiency and low power consumption. The regulator operates by rapidly switching an internal transistor on and off, controlling the flow of current through an inductor. This process efficiently steps down the input voltage to the desired output level.

Detailed Application Field Plans

The S-1206B38-U3T1U is commonly used in various electronic devices and systems where a stable 3.3V power supply is required. Some typical application fields include:

1. Battery-powered devices: Portable electronics such as smartphones, tablets, and wearables benefit from the efficient power conversion and low quiescent current of this voltage regulator.
2. IoT (Internet of Things) devices: Connected devices often operate on low power and require a compact voltage regulator like the S-1206B38-U3T1U for efficient power management.
3. Industrial automation: Control systems, sensors, and actuators in industrial environments can utilize this regulator for reliable and stable power supply.

Detailed and Complete Alternative Models

1. S-1206B33-U3T1U: Similar to S-1206B38-U3T1U but with a fixed output voltage of 3.3V.
2. S-1206B50-U3T1U: Step-down voltage regulator with a fixed output voltage of 5V.
3. S-1206B18-U3T1U: Step-down voltage regulator with a fixed output voltage of 1.8V.

These alternative models offer different output voltage options while maintaining similar characteristics and package types.

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