TPS79518DCQR

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TPS79518DCQR

IC REG LIN 1.8V 500MA SOT223-6

  • Fabricante
  • Mfr. Parte #TPS79518DCQR
  • Paquete SOT-223-6
  • Hoja de datos
  • En stock7540

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Especificaciones

Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Active
OutputConfiguration Positive
OutputType Fixed
NumberofRegulators 1
Voltage-Input(Max) 5.5V
Voltage-Output(Min/Fixed) 1.8V
Current-Output 500mA
Current-Quiescent(Iq) 385 µA
PSRR 59dB ~ 39dB (100Hz ~ 100kHz)
ControlFeatures Enable
ProtectionFeatures Over Current, Over Temperature, Reverse Polarity, Under Voltage Lockout (UVLO)
OperatingTemperature -40°C ~ 125°C
MountingType Surface Mount
Package/Case SOT-223-6

Descripción general

Description

The TPS79518DCQR is a low-dropout (LDO) voltage regulator developed by Texas Instruments. It is part of the TPS795 series, designed to offer fast transient response, precise output voltage, and low quiescent current, making it suitable for battery-operated and portable applications. The device provides a fixed output voltage of 1.8V and can deliver up to 500mA of output current.
Key features of the TPS79518DCQR include high power-supply rejection ratio (PSRR), low output noise, and a wide input voltage range of 2.7V to 5.5V. It also comes with an enable pin for device shutdown, thermal shutdown protection, and current limit protection to enhance reliability and safety.
The regulator is housed in a small SOT-223 package, making it ideal for space-constrained designs. The TPS79518DCQR is commonly used in applications such as microcontrollers, DSPs, and RF components where a stable and precise voltage is critical. Its performance characteristics make it suitable for use in various consumer electronics, industrial, and communication equipment.

Features

The TPS79518DCQR is a high-precision, low-dropout (LDO) voltage regulator from Texas Instruments. Key features include:
1. Ultra-Low Noise: Designed to minimize output noise, ideal for sensitive applications.
2. High PSRR: Provides excellent power supply ripple rejection, enhancing performance in noisy environments.
3. Low Dropout Voltage: Enhances efficiency by minimizing voltage differences between input and output.
4. Wide Input Voltage Range: Supports a broad range of input voltages, increasing flexibility for various applications.
5. Fast Transient Response: Quickly adapts to changes in load conditions, maintaining stable output voltage.
6. Current Limit Protection: Protects against overcurrent conditions, enhancing safety and reliability.
7. Thermal Shutdown: Automatically shuts down in over-temperature conditions to prevent damage.
8. Adjustable Output Voltage: Allows customization of output voltage to meet specific needs.
9. Stable with Ceramic Capacitors: Ensures stability with small, low-cost ceramic capacitors.
10. Package: Available in a small SOT-223 package, suitable for space-constrained applications.
These features make the TPS79518DCQR suitable for applications requiring precision and stability, such as RF systems, precision analog circuits, and portable devices.

Package

The TPS79518DCQR is a voltage regulator from Texas Instruments, packaged in an 8-pin SON (Small Outline No-lead) package, specifically labeled as "DCQ." This package type is compact, making it suitable for applications requiring efficient space utilization on printed circuit boards.

Pinout

The TPS79518DCQR is a low-dropout (LDO) voltage regulator from Texas Instruments. It typically comes in an 8-pin package, specifically in the SON (Small Outline No-lead) package, also referred to as DCQ. This regulator is designed to provide a fixed output voltage of 1.8V with an output current of up to 500 mA.
The key functions of the TPS79518DCQR include:
1. Low Dropout Voltage: It ensures efficient regulation with minimal voltage difference between input and output.
2. Low Quiescent Current: Helps in reducing power consumption, making it suitable for battery-powered applications.
3. Fast Transient Response: Quickly responds to changes in load, maintaining a stable output voltage.
4. Thermal Shutdown: Protects the device by shutting it down if it exceeds a certain temperature limit.
5. Current Limiting: Protects against excessive current loads, ensuring reliability.
For more detailed pin configuration and specific application circuits, refer to the datasheet provided by Texas Instruments.

Manufacturer

The TPS79518DCQR is manufactured by Texas Instruments. Texas Instruments is a technology company that designs and manufactures semiconductors and various integrated circuits, which are used in electronic devices across a wide range of industries, including automotive, consumer electronics, industrial, and telecommunications. Established in 1930 and headquartered in Dallas, Texas, the company is recognized as one of the world's leading semiconductor companies. It focuses on developing analog chips, embedded processors, and related software, making significant contributions to the advancement of technology by enabling innovative electronics that are more reliable, efficient, and affordable.

Application

The TPS79518DCQR is a low-dropout (LDO) voltage regulator that is commonly used in applications requiring precise voltage regulation and low noise. Its typical application areas include powering sensitive analog and digital circuits, mobile and battery-operated devices, portable instrumentation, RF communication equipment, and medical devices. Its low quiescent current and high PSRR (Power Supply Rejection Ratio) make it suitable for applications demanding energy efficiency and stable performance in noisy environments.

Equivalent

The TPS79518DCQR is a low-dropout (LDO) voltage regulator from Texas Instruments. Equivalent products include:
1. LT1963A - by Analog Devices, a similar LDO voltage regulator.
2. LP2985-18 - by Texas Instruments, another LDO with similar specifications.
3. NCP5661 - by ON Semiconductor, offering similar performance.
4. MIC5205-1.8 - by Microchip Technology, also a comparable LDO regulator.
When selecting alternatives, ensure they meet the specific electrical and thermal specifications required for your application.

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