LDL1117S15R

Product Overview

• Category: Voltage Regulator
• Use: Provides a stable output voltage for electronic devices
• Characteristics: Low dropout, high accuracy, low quiescent current
• Package: TO-252-2 (DPAK)
• Essence: Linear regulator with adjustable output voltage
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Input Voltage Range: 4.75V to 20V
• Output Voltage Range: 1.25V to 18V
• Output Current: Up to 800mA
• Dropout Voltage: 1.15V (typical)
• Quiescent Current: 5mA (typical)
• Line Regulation: ±0.2% (typical)
• Load Regulation: ±0.4% (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LDL1117S15R has three pins:

1. VIN - Input voltage pin
2. GND - Ground pin
3. VOUT - Output voltage pin

Functional Features

• Low dropout voltage ensures efficient power conversion
• High accuracy provides a stable output voltage
• Low quiescent current minimizes power consumption
• Overcurrent and thermal protection for enhanced reliability
• Adjustable output voltage allows flexibility in design

Advantages and Disadvantages

Advantages

• Wide input voltage range enables compatibility with various power sources
• Excellent line and load regulation for precise voltage control
• Compact TO-252-2 package facilitates easy integration into circuit designs
• Robust protection features enhance device durability

Disadvantages

• Limited output current may not be suitable for high-power applications
• Dropout voltage may cause a significant power loss in low input voltage scenarios

Working Principles

The LDL1117S15R is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with a fraction of the output voltage, adjusting the pass transistor accordingly to maintain a stable output.

Detailed Application Field Plans

The LDL1117S15R finds applications in various electronic devices and systems, including:

1. Battery-powered devices: Provides a stable voltage for microcontrollers, sensors, and other low-power components.
2. Automotive electronics: Regulates voltage for infotainment systems, lighting modules, and control units.
3. Industrial equipment: Ensures reliable power supply for sensors, actuators, and control circuits.
4. Communication systems: Stabilizes voltage for RF modules, transceivers, and signal processing units.

Detailed and Complete Alternative Models

1. LM1117-ADJ: Adjustable output voltage, TO-252 package, 800mA output current.
2. LT1117-5: Fixed 5V output voltage, TO-220 package, 800mA output current.
3. LDO1117-3.3: Fixed 3.3V output voltage, SOT-223 package, 800mA output current.

(Note: This list is not exhaustive and serves as an example of alternative models.)

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