ST1S12GR

Product Overview

Category

ST1S12GR belongs to the category of voltage regulators.

Use

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

Characteristics

• Efficient voltage regulation
• Compact size
• Low power consumption
• Wide input voltage range
• High output current capability

Package

ST1S12GR is available in a small surface-mount package, making it suitable for space-constrained applications.

Essence

The essence of ST1S12GR lies in its ability to provide stable and regulated voltage output, ensuring proper functioning of electronic circuits.

Packaging/Quantity

ST1S12GR is typically packaged in reels or tubes, with varying quantities depending on the supplier. Common packaging options include 2500 units per reel or 100 units per tube.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: 0.8V to VIN
• Maximum Output Current: 1.2A
• Dropout Voltage: 300mV (typical)
• Quiescent Current: 120µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

ST1S12GR features a standard pin configuration with the following pins:

1. VIN: Input voltage pin
2. GND: Ground pin
3. FB: Feedback pin for voltage regulation
4. EN: Enable pin for turning the regulator on/off
5. SW: Switching node pin for connecting the external inductor
6. PG: Power good indicator pin

Functional Features

• Wide input voltage range allows compatibility with various power sources.
• High output current capability enables powering of multiple components simultaneously.
• Low dropout voltage ensures efficient power conversion even with low input voltages.
• Power good indicator (PG) provides a signal indicating the output voltage is within the desired range.
• Enable pin (EN) allows for easy on/off control of the regulator.

Advantages and Disadvantages

Advantages

• Efficient voltage regulation
• Compact size
• Wide input voltage range
• High output current capability
• Power good indicator for monitoring output voltage

Disadvantages

• Dropout voltage may limit performance in low input voltage scenarios.
• Limited output voltage range compared to some other regulators.

Working Principles

ST1S12GR operates based on a switching regulator topology. It utilizes an external inductor and capacitor to store and regulate energy, providing a stable output voltage. The internal control circuitry adjusts the duty cycle of the switching transistor to maintain the desired output voltage despite variations in input voltage and load conditions.

Detailed Application Field Plans

ST1S12GR finds applications in various electronic devices and systems, including but not limited to: - Mobile phones - Tablets - Portable media players - Digital cameras - Wireless communication devices - Battery-powered devices

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to ST1S12GR include: - LM317: Adjustable linear voltage regulator - LT1763: Low dropout linear voltage regulator - TPS54331: Synchronous buck converter - MP2307: Step-down switching regulator - NCP1117: Fixed output linear voltage regulator

These alternative models offer different features and specifications, allowing users to choose the most suitable option for their specific requirements.

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