TPS78625DCQRG4 Description
The TPS786 family of low-dropout (LDO) low-power linear voltage regulators features a high power-supply rejection ratio (PSRR)， ultralow noise, fast start-up, and excellent line and load transient responses in small outline, SOT223-6. and DDPAK-5 packages. Each device in the family is stable, with a small 1-μF ceramic capacitor on the output. The family uses an advanced, proprietary BiCMOS fabrication process to yield extremely. low dropout voltages (for example, 390 mV at 1.5 A). Each device achieves fast start-up times (approximately 50 μs with a 0.001-uF bypass capacitor) while consuming very low quiescent current (265 μA, typical). Moreover, when the device is placed in' standby mode, the supply current is reduced to less than 1 μA. The TPS78630 exhibits approximately 48 μVRMS of the output voltage at 3-V output noise_ with a 0.1-_μF bypass capacitor. Applications with analog components that are noise
sensitive, such as portable RF electronics, benefit from the high PSRR, low noise features, and fast response time.
TPS78625DCQRG4 Applications
Simple High Efficiency (>90%) Step-Down (Buck)
Regulator
Efficient Preregulator for Linear Regulators
Positive-to-Negative Converter
