Specifications
| Attribute | Value |
| Package | Tape & Reel (TR),Cut Tape (CT),Bulk |
| ProductStatus | Active |
| OutputConfiguration | Positive |
| OutputType | Fixed |
| NumberofRegulators | 1 |
| Voltage-Input(Max) | 16V |
| Voltage-Output(Min/Fixed) | 1.8V |
| VoltageDropout(Max) | 0.58V @ 150mA |
| Current-Output | 150mA |
| Current-Quiescent(Iq) | 95 µA |
| Current-Supply(Max) | 2.5 mA |
| PSRR | 45dB (1kHz) |
| ControlFeatures | Enable |
| ProtectionFeatures | Over Current, Over Temperature, Short Circuit |
| OperatingTemperature | -40°C ~ 125°C |
| MountingType | Surface Mount |
| Package/Case | SC-74A, SOT-753 |
Overview
Description
The LP2985A-18DBVR is a low-dropout (LDO) linear voltage regulator manufactured by Texas Instruments. It provides a fixed output voltage of 1.8 volts and is designed for applications requiring precise voltage regulation and high efficiency. The device is housed in a compact SOT-23 package, making it suitable for space-constrained applications.
Key features of the LP2985A-18DBVR include a low dropout voltage of approximately 280 mV at full load, which helps maintain regulation with minimal input-output voltage difference. It boasts low quiescent current, enhancing battery life in portable devices. The regulator offers excellent line and load transient responses and includes features like short-circuit and thermal protection, ensuring reliable operation under various conditions.
The LP2985A-18DBVR is commonly used in battery-powered devices, portable electronics, and any systems requiring stable low-voltage power. Its ease of use, combined with high performance, makes it a popular choice for designers looking to regulate 1.8V power rails efficiently.
Key features of the LP2985A-18DBVR include a low dropout voltage of approximately 280 mV at full load, which helps maintain regulation with minimal input-output voltage difference. It boasts low quiescent current, enhancing battery life in portable devices. The regulator offers excellent line and load transient responses and includes features like short-circuit and thermal protection, ensuring reliable operation under various conditions.
The LP2985A-18DBVR is commonly used in battery-powered devices, portable electronics, and any systems requiring stable low-voltage power. Its ease of use, combined with high performance, makes it a popular choice for designers looking to regulate 1.8V power rails efficiently.
Equivalent
The LP2985A-18DBVR is a low-dropout (LDO) voltage regulator with a fixed 1.8V output. Equivalent products include:
1. Microchip MCP1700T-1802E/TT: Similar low-dropout, fixed 1.8V regulator.
2. ON Semiconductor NCP1117ST18T3G: Offers similar output voltage and performance.
3. STMicroelectronics LD2985ABM18TR: Features comparable specifications for low dropout voltage regulation.
4. Analog Devices ADP150AUJZ-1.8-R7: Provides similar functionality with low dropout characteristics.
These alternatives offer similar functionality with fixed 1.8V output and low dropout features.
1. Microchip MCP1700T-1802E/TT: Similar low-dropout, fixed 1.8V regulator.
2. ON Semiconductor NCP1117ST18T3G: Offers similar output voltage and performance.
3. STMicroelectronics LD2985ABM18TR: Features comparable specifications for low dropout voltage regulation.
4. Analog Devices ADP150AUJZ-1.8-R7: Provides similar functionality with low dropout characteristics.
These alternatives offer similar functionality with fixed 1.8V output and low dropout features.
Features
The LP2985A-18DBVR is a low-dropout (LDO) voltage regulator. Key features include:
1. Output Voltage: Provides a fixed output voltage of 1.8V.
2. Low Dropout Voltage: Offers a dropout voltage typically around 280mV at full load, which enhances efficiency.
3. Output Current: Capable of delivering up to 150mA of output current.
4. Quiescent Current: Low quiescent current of approximately 85µA, ideal for battery-powered applications.
5. Precision: High accuracy of output voltage regulation, typically around ±1.5%.
6. Noise Performance: Offers low output noise of about 30µVrms, suitable for noise-sensitive applications.
7. Thermal Protection: Integrated thermal-overload protection to prevent overheating.
8. Current Limiting: Built-in current limiting to safeguard against overcurrent conditions.
9. Package: Available in a compact SOT-23-5 package, making it suitable for space-constrained designs.
10. Temperature Range: Operates across a wide temperature range from -40°C to 125°C.
These features make the LP2985A-18DBVR suitable for a variety of applications, including portable devices and other electronic systems requiring stable and efficient voltage regulation.
1. Output Voltage: Provides a fixed output voltage of 1.8V.
2. Low Dropout Voltage: Offers a dropout voltage typically around 280mV at full load, which enhances efficiency.
3. Output Current: Capable of delivering up to 150mA of output current.
4. Quiescent Current: Low quiescent current of approximately 85µA, ideal for battery-powered applications.
5. Precision: High accuracy of output voltage regulation, typically around ±1.5%.
6. Noise Performance: Offers low output noise of about 30µVrms, suitable for noise-sensitive applications.
7. Thermal Protection: Integrated thermal-overload protection to prevent overheating.
8. Current Limiting: Built-in current limiting to safeguard against overcurrent conditions.
9. Package: Available in a compact SOT-23-5 package, making it suitable for space-constrained designs.
10. Temperature Range: Operates across a wide temperature range from -40°C to 125°C.
These features make the LP2985A-18DBVR suitable for a variety of applications, including portable devices and other electronic systems requiring stable and efficient voltage regulation.
Pinout
The LP2985A-18DBVR is a voltage regulator from Texas Instruments. It features a 5-pin SOT-23 package. The primary function of this device is to provide a regulated output voltage of 1.8V with a maximum output current of 150 mA. It is designed for low dropout (LDO) operations, making it suitable for applications requiring energy efficiency and a stable output from a variable input voltage.
Here is a brief description of the pin functions for the LP2985A-18DBVR:
1. IN: Input voltage pin; connects to the unregulated DC input.
2. GND: Ground pin; common ground for the input and output.
3. OUT: Regulated output voltage pin, which delivers the 1.8V output.
4. BP: Bypass pin; provides noise reduction by connecting a capacitor from this pin to ground.
5. NC: No Connect; typically not connected internally, ensure no connection is made to this pin.
The device also features built-in over-current and over-temperature protection, enhancing its reliability in demanding applications.
Here is a brief description of the pin functions for the LP2985A-18DBVR:
1. IN: Input voltage pin; connects to the unregulated DC input.
2. GND: Ground pin; common ground for the input and output.
3. OUT: Regulated output voltage pin, which delivers the 1.8V output.
4. BP: Bypass pin; provides noise reduction by connecting a capacitor from this pin to ground.
5. NC: No Connect; typically not connected internally, ensure no connection is made to this pin.
The device also features built-in over-current and over-temperature protection, enhancing its reliability in demanding applications.
Manufacturer
The LP2985A-18DBVR is manufactured by Texas Instruments. Texas Instruments is a global technology company that designs and manufactures semiconductors and various integrated circuits. They are well-known for producing a wide range of products for the electronics industry, including analog chips, digital signal processors, and microcontrollers. Texas Instruments serves various markets, including automotive, industrial, personal electronics, communications equipment, and enterprise systems.
Application
The LP2985A-18DBVR is a low-dropout (LDO) voltage regulator that is typically used in applications requiring a stable 1.8V output from higher voltage inputs. Key application areas include:
1. Battery-Powered Devices: Offers efficient power regulation for portable electronics, maximizing battery life.
2. Microcontrollers and Microprocessors: Provides stable power supply, essential for reliable CPU operation.
3. RF Communication Equipment: Ensures low noise and stable voltage for sensitive RF circuits.
4. Industrial Automation Equipment: Supports precise voltage requirements in control systems.
5. Consumer Electronics: Used in devices like smartphones and tablets for power management.
6. Medical Devices: Supplies stable voltage necessary for accurate operation of medical electronics.
These applications benefit from its low power consumption and high precision.
1. Battery-Powered Devices: Offers efficient power regulation for portable electronics, maximizing battery life.
2. Microcontrollers and Microprocessors: Provides stable power supply, essential for reliable CPU operation.
3. RF Communication Equipment: Ensures low noise and stable voltage for sensitive RF circuits.
4. Industrial Automation Equipment: Supports precise voltage requirements in control systems.
5. Consumer Electronics: Used in devices like smartphones and tablets for power management.
6. Medical Devices: Supplies stable voltage necessary for accurate operation of medical electronics.
These applications benefit from its low power consumption and high precision.
Package
The LP2985A-18DBVR is a low-dropout (LDO) linear voltage regulator manufactured by Texas Instruments. It comes in a SOT-23-5 package, which is a small outline, surface-mount package with five pins. The "DBVR" refers to the specific tape and reel packaging for automatic placement in manufacturing processes.
