RT9025-12ZSP

Product Overview

Category: Voltage Regulator

Use: The RT9025-12ZSP is a voltage regulator designed to provide a stable output voltage for electronic devices.

Characteristics: - High efficiency - Low dropout voltage - Low quiescent current - Overcurrent protection - Thermal shutdown protection

Package: SOT-23-5

Essence: The RT9025-12ZSP is an essential component in electronic circuits that require a regulated power supply.

Packaging/Quantity: The RT9025-12ZSP is typically sold in reels containing 3000 units.

Specifications

• Input Voltage Range: 2.5V - 6V
• Output Voltage: 1.2V
• Output Current: Up to 300mA
• Dropout Voltage: 200mV (typical)
• Quiescent Current: 60μA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The RT9025-12ZSP has the following pin configuration:

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

Functional Features

• High Efficiency: The RT9025-12ZSP utilizes advanced circuitry to achieve high efficiency, minimizing power loss.
• Low Dropout Voltage: With a low dropout voltage of only 200mV, the regulator can maintain a stable output even when the input voltage is close to the desired output voltage.
• Low Quiescent Current: The low quiescent current ensures minimal power consumption when the regulator is in standby mode.
• Overcurrent Protection: The device incorporates overcurrent protection, safeguarding the connected circuitry from excessive current.
• Thermal Shutdown Protection: In case of excessive temperature, the regulator automatically shuts down to prevent damage.

Advantages and Disadvantages

Advantages: - High efficiency leads to reduced power consumption. - Low dropout voltage ensures stable output even with low input voltages. - Overcurrent and thermal shutdown protection enhance reliability and safety.

Disadvantages: - Limited output current capacity (up to 300mA). - Restricted input voltage range (2.5V - 6V).

Working Principles

The RT9025-12ZSP operates as a linear voltage regulator. It regulates the output voltage by comparing the feedback voltage (FB) with a reference voltage. The internal circuitry adjusts the pass transistor to maintain a constant output voltage despite variations in the input voltage and load conditions.

Detailed Application Field Plans

The RT9025-12ZSP finds applications in various electronic devices that require a stable power supply, such as: - Mobile phones - Tablets - Portable media players - Wireless communication devices - Battery-powered devices

Detailed and Complete Alternative Models

1. LM1117-3.3: A popular alternative with a fixed output voltage of 3.3V.
2. MCP1700-3302E: Another alternative offering a fixed output voltage of 3.3V and lower quiescent current.
3. LP2985-33DBVR: Similar to the RT9025-12ZSP, it provides a fixed output voltage of 3.3V and features low dropout voltage.

These alternative models can be considered based on specific requirements and compatibility with the target application.

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