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RT9073A-18GQZ
+Lista de MateriaisIC REG LINEAR 1.8V 250MA 4ZQFN
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FabricanteRichtek USA Inc.
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Peça do Fabricante #RT9073A-18GQZ
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Ficha Técnica RT9073A-18GQZ DataSheet
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Pacote XDFN-4
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Especificações
| Atributo | Valor |
| 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 |
| VoltageDropout(Max) | 0.8V @ 250mA |
| Current-Output | 250mA |
| Current-Quiescent(Iq) | 3 µA |
| PSRR | 75dB (1kHz) |
| ControlFeatures | Enable |
| ProtectionFeatures | Over Current, Over Temperature |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| MountingType | Surface Mount |
| Package/Case | 4-XDFN Exposed Pad |
Visão Geral
Description
Key features of the RT9073A-18GQZ include low dropout voltage, making it efficient in power-sensitive applications, and a low quiescent current, which helps to extend battery life in portable devices. It also offers excellent line and load regulation, ensuring consistent performance even with varying input voltages and output loads. The LDO typically includes various protection features such as thermal shutdown and current limiting to safeguard against over-temperature and over-current conditions.
The RT9073A-18GQZ is typically available in compact package sizes suitable for space-constrained designs, allowing for ease of integration into PCB layouts.
Equivalent
1. MIC5205-1.8BM5 by Microchip Technology
2. TLV1117-18 by Texas Instruments
3. LP2985-18 by Texas Instruments
4. NCP1117-1.8 by ON Semiconductor
These alternatives have similar output voltage and performance characteristics. Always verify the datasheets to ensure compatibility in your specific application.
Features
1. Output Voltage: It offers a fixed output voltage of 1.8V.
2. Output Current: The device supports an output current up to 500mA.
3. Low Dropout Voltage: Designed to provide a low dropout voltage, enhancing efficiency.
4. Quiescent Current: It features low quiescent current, which helps in reducing power consumption.
5. Thermal Protection: The LDO includes thermal shutdown to prevent overheating.
6. Short-Circuit Protection: Built-in protection against output short circuits.
7. Capacitor Requirements: The RT9073A-18GQZ works with a small ceramic capacitor at the output for stability.
8. Package Type: Available in a small, SOT-23-5 package, making it suitable for space-constrained applications.
9. High PSRR: Offers a high Power Supply Rejection Ratio, ensuring stable operation in noisy environments.
These features make it ideal for applications requiring efficient power regulation, such as portable devices and battery-operated equipment.
Pinout
The RT9073A-18GQZ specifically refers to a fixed output voltage version of the regulator, providing 1.8V output. The "GQZ" suffix typically indicates the package type, which is often a DFN-4 (Dual Flat No-leads) package, meaning it has 4 pins or leads.
The pin functions for a typical 4-pin DFN package LDO like the RT9073A-18GQZ are generally as follows:
1. VIN: Input voltage pin, where the supply voltage is applied.
2. GND: Ground pin, the common return path for both input and output.
3. VOUT: Output voltage pin, where the regulated output voltage is available.
4. EN or NC (Enable/No Connect): This pin may either be used to enable/disable the regulator or be a no-connect pin depending on specific model variations.
Always refer to the specific datasheet provided by Richtek for precise pin configuration and additional features.