Texas Instruments Voltage Regulators - Linear TPS78633DCQ

The TPS78633DCQ is a linear voltage regulator from Quarktwin Technology Ltd. designed to provide a fixed output of 1.5 A. It features a low dropout voltage of 390 mV at full load, making it suitable for applications requiring efficient power management. The device offers high power-supply rejection ratio (PSRR) of 49 dB at 10 kHz and ultralow output noise of 48 OºV_RMS, which is beneficial for noise-sensitive applications such as RF electronics and audio devices. The TPS78633DCQ has a fast start-up time of approximately 50 Oºs and is stable with a small 1-OºF ceramic capacitor on the output. It is available in a compact SOT-223-6 package, which is advantageous for space-constrained designs. The device operates over a temperature range of -40 to 125 ¬8C, ensuring reliability in various environmental conditions. This regulator is ideal for applications including RF VCOs, receivers, and portable electronics where low noise and high efficiency are critical.