LP2902PWRE4

Product Overview

• Category: Integrated Circuit
• Use: Voltage Regulator
• Characteristics: Low Dropout, Low Quiescent Current
• Package: TSSOP-16
• Essence: Linear Regulator
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 2.5V to 10V
• Output Voltage Range: 1.25V to 6.5V
• Dropout Voltage: 300mV at 100mA
• Quiescent Current: 120µA
• Output Current: 200mA
• Line Regulation: ±0.02%/V
• Load Regulation: ±0.04%/mA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LP2902PWRE4 has a TSSOP-16 package with the following pin configuration:

1. IN1: Input Voltage 1
2. GND: Ground
3. OUT1: Output Voltage 1
4. IN2: Input Voltage 2
5. EN: Enable Pin
6. OUT2: Output Voltage 2
7. FB1: Feedback Pin 1
8. NC: No Connection
9. NC: No Connection
10. NC: No Connection
11. NC: No Connection
12. NC: No Connection
13. NC: No Connection
14. FB2: Feedback Pin 2
15. GND: Ground
16. VCC: Supply Voltage

Functional Features

• Dual Output Voltage: The LP2902PWRE4 provides two regulated output voltages, making it suitable for applications requiring multiple voltage levels.
• Low Dropout: With a dropout voltage of only 300mV at 100mA, this voltage regulator can operate efficiently even when the input voltage is close to the desired output voltage.
• Low Quiescent Current: The quiescent current of 120µA ensures minimal power consumption during standby or idle conditions.
• Enable Pin: The EN pin allows for easy on/off control of the regulator, conserving power when not needed.

Advantages and Disadvantages

Advantages: - Dual Output: Provides flexibility in powering different components with varying voltage requirements. - Low Dropout: Enables efficient operation even with low input-output voltage differentials. - Low Quiescent Current: Reduces power consumption during idle periods. - Enable Pin: Allows for easy control of the regulator's operation.

Disadvantages: - Limited Output Current: The maximum output current of 200mA may not be sufficient for high-power applications. - TSSOP Package: The small package size may require careful handling during assembly.

Working Principles

The LP2902PWRE4 is a linear regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the feedback voltage with a reference voltage and adjusting the pass transistor accordingly. This feedback loop ensures a stable output voltage despite variations in the input voltage and load conditions.

Detailed Application Field Plans

The LP2902PWRE4 is commonly used in various applications, including but not limited to: - Battery-powered devices - Portable electronics - Industrial control systems - Automotive electronics - Communication equipment

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the LP2902PWRE4 include: - LM317: Adjustable Linear Regulator - LT1763: Low Dropout Linear Regulator - TPS7A47: Dual Output Voltage Regulator - MCP1700: Low Quiescent Current Linear Regulator

These alternatives provide options based on specific requirements such as adjustable output voltage, lower dropout voltage, or ultra-low quiescent current.

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