LM285D-2-5

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Reference

Characteristics: - Low dropout voltage - High accuracy - Low quiescent current - Wide operating temperature range

Package: TO-92

Essence: The LM285D-2-5 is a precision voltage reference IC that provides a stable and accurate output voltage of 2.5V.

Packaging/Quantity: Available in reels or tubes, with a quantity of 1000 units per reel/tube.

Specifications

• Output Voltage: 2.5V
• Dropout Voltage: 60mV (typical)
• Quiescent Current: 120µA (typical)
• Temperature Range: -40°C to +85°C
• Line Regulation: 0.02% (typical)
• Load Regulation: 0.04% (typical)

Pin Configuration

The LM285D-2-5 has three pins:

1. Vout: Output pin, connected to the load.
2. GND: Ground pin, connected to the circuit's ground.
3. Vin: Input pin, connected to the input voltage source.

Functional Features

• High accuracy: The LM285D-2-5 provides a precise output voltage of 2.5V, ensuring reliable performance in various applications.
• Low dropout voltage: With a low dropout voltage of only 60mV, this voltage reference IC can operate efficiently even when the input voltage is close to the desired output voltage.
• Low quiescent current: The LM285D-2-5 consumes minimal current during operation, resulting in lower power consumption and extended battery life.
• Wide operating temperature range: It can operate reliably in a wide temperature range from -40°C to +85°C, making it suitable for various environments.

Advantages and Disadvantages

Advantages: - High accuracy ensures precise voltage reference. - Low dropout voltage allows efficient operation. - Low quiescent current reduces power consumption. - Wide operating temperature range enables versatile usage.

Disadvantages: - Limited output voltage options (only 2.5V in this case). - Not suitable for applications requiring higher output voltages.

Working Principles

The LM285D-2-5 is based on bandgap voltage reference technology. It utilizes a combination of bipolar and CMOS transistor circuits to generate a stable reference voltage. The internal circuitry compensates for temperature variations, ensuring accurate output voltage regardless of environmental conditions.

Detailed Application Field Plans

The LM285D-2-5 finds applications in various fields, including but not limited to: 1. Power supply circuits: Provides a stable voltage reference for voltage regulators and other power management components. 2. Analog-to-digital converters (ADC): Ensures accurate conversion by providing a precise reference voltage. 3. Sensor circuits: Used as a reference voltage for sensor calibration and measurement circuits. 4. Battery-powered devices: Helps maintain a stable voltage level in portable electronic devices.

Detailed and Complete Alternative Models

1. LM4040-2.5: Similar to LM285D-2-5, it provides a 2.5V output voltage with high accuracy.
2. LT1004-2.5: Another alternative offering a 2.5V output voltage, known for its low noise performance.
3. REF102CU: Precision voltage reference IC with a 2.5V output and excellent long-term stability.

These alternative models can be considered based on specific requirements and application needs.

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