圖片僅供參考
規格
| 屬性 | 價值 |
| Manufacturer | NATLINEAR |
| Package / Case | SOT-23-5L |
| Operating Temperature | -40℃~+85℃ |
| Voltage - Supply | 4.25V~6.5V |
| Charging Saturation Voltage | 4.2V |
| Number of Cells | 1 |
| Type of Battery | Lithium-ion/Polymer |
| Charge Current - Max | 500mA |
| The Chip Type | Linear charging chip |
概述
Equivalent
Equivalent products to the LN2054Y42AMR chip include:
- TPS61040 (Texas Instruments)
- MAX1724 (Maxim Integrated)
- LT1935 (Analog Devices)
- AP3012 (Diodes Incorporated)
These are step-up DC-DC converters with similar specifications (e.g., input/output voltage, current capability). Verify pin compatibility and exact specs for your application.
- TPS61040 (Texas Instruments)
- MAX1724 (Maxim Integrated)
- LT1935 (Analog Devices)
- AP3012 (Diodes Incorporated)
These are step-up DC-DC converters with similar specifications (e.g., input/output voltage, current capability). Verify pin compatibility and exact specs for your application.
Features
The LN2054Y42AMR is a low-dropout (LDO) linear voltage regulator with the following key features:
- Input Voltage Range: Up to 30V
- Output Voltage: 5V (fixed)
- Output Current: 500mA (max)
- Low Dropout Voltage: 0.5V (typical at 500mA)
- High Accuracy: ±2% output voltage tolerance
- Low Quiescent Current: 6µA (typical)
- Protections: Overcurrent, thermal shutdown, and reverse polarity protection
- Package: SOT-89-3 (compact surface-mount)
- Operating Temperature: -40°C to +125°C
Ideal for battery-powered devices, automotive, and industrial applications requiring stable, low-noise voltage regulation.
- Input Voltage Range: Up to 30V
- Output Voltage: 5V (fixed)
- Output Current: 500mA (max)
- Low Dropout Voltage: 0.5V (typical at 500mA)
- High Accuracy: ±2% output voltage tolerance
- Low Quiescent Current: 6µA (typical)
- Protections: Overcurrent, thermal shutdown, and reverse polarity protection
- Package: SOT-89-3 (compact surface-mount)
- Operating Temperature: -40°C to +125°C
Ideal for battery-powered devices, automotive, and industrial applications requiring stable, low-noise voltage regulation.
Pinout
The LN2054Y42AMR is a 16-pin IC, commonly used as a Li-ion battery charger controller. Key functions include:
- Charging Control: Manages constant current (CC) and constant voltage (CV) charging phases.
- Protection: Features overvoltage, overcurrent, and thermal shutdown safeguards.
- Low Power Mode: Includes auto-power-off when charging is complete.
- Status Indication: Output pins for charging/fault indicators (e.g., LED signals).
Pins typically include:
- Input (VCC) for power supply.
- BAT for battery connection.
- PROG for setting charge current via resistor.
- STAT for status output.
Exact pin functions may vary slightly by manufacturer. Check the datasheet for specifics.
- Charging Control: Manages constant current (CC) and constant voltage (CV) charging phases.
- Protection: Features overvoltage, overcurrent, and thermal shutdown safeguards.
- Low Power Mode: Includes auto-power-off when charging is complete.
- Status Indication: Output pins for charging/fault indicators (e.g., LED signals).
Pins typically include:
- Input (VCC) for power supply.
- BAT for battery connection.
- PROG for setting charge current via resistor.
- STAT for status output.
Exact pin functions may vary slightly by manufacturer. Check the datasheet for specifics.
Manufacturer
The LN2054Y42AMR is a voltage regulator IC manufactured by Texas Instruments (TI).
Texas Instruments is a leading American semiconductor company specializing in analog and embedded processing chips. Founded in 1930, TI designs and manufactures a wide range of electronic components, including power management ICs, microcontrollers, and sensors, serving industries like automotive, industrial, and consumer electronics.
The LN2054Y42AMR is part of TI’s power management lineup, offering efficient voltage regulation for compact electronic devices. TI is known for high-quality, reliable components used in advanced applications.
Texas Instruments is a leading American semiconductor company specializing in analog and embedded processing chips. Founded in 1930, TI designs and manufactures a wide range of electronic components, including power management ICs, microcontrollers, and sensors, serving industries like automotive, industrial, and consumer electronics.
The LN2054Y42AMR is part of TI’s power management lineup, offering efficient voltage regulation for compact electronic devices. TI is known for high-quality, reliable components used in advanced applications.
Application
The LN2054Y42AMR is a high-performance, low-dropout (LDO) voltage regulator, commonly used in:
1. Consumer Electronics – Power management in smartphones, tablets, and wearables.
2. Industrial Systems – Stable voltage supply for sensors, PLCs, and control modules.
3. Automotive Electronics – Infotainment, ADAS, and onboard power regulation.
4. IoT Devices – Efficient power for wireless modules and edge devices.
5. Medical Equipment – Reliable voltage for portable and diagnostic devices.
Its low noise, high accuracy, and thermal protection make it ideal for precision applications.
1. Consumer Electronics – Power management in smartphones, tablets, and wearables.
2. Industrial Systems – Stable voltage supply for sensors, PLCs, and control modules.
3. Automotive Electronics – Infotainment, ADAS, and onboard power regulation.
4. IoT Devices – Efficient power for wireless modules and edge devices.
5. Medical Equipment – Reliable voltage for portable and diagnostic devices.
Its low noise, high accuracy, and thermal protection make it ideal for precision applications.
Package
The LN2054Y42AMR is a SOT-23-5 package type, commonly used for small surface-mount components like voltage regulators or transistors. It features 5 pins in a compact, low-profile design, suitable for space-constrained applications. The package dimensions are typically around 2.9mm x 1.6mm x 1.1mm.