300mA, ultra low noise, ultra fast CMOS LDO regulator

The RT9193 is designed for portable RF and wireless applications where performance and space requirements are critical. The performance of the RT9193 is optimized for battery powered systems to provide ultra-low noise and low static current. Noise bypass pins can be used to further reduce output noise.

The voltage regulator grounding current increases only slightly in dropout, further extending battery life. The RT9193 also uses low-ESR ceramic capacitors, reducing the amount of board space required for power applications, which is critical in handheld wireless devices.

The RT9193 has a power consumption of less than 0.01μA in shutdown mode and a fast startup time of less than 50μs. Other features include ultra-low voltage, high output accuracy, current limiting protection, and high ripple rejection ratio. Available in SC-70-5, SOT-23-5, TSOT-23-5, WDFN 6L 2x2 and SOP-8 packs.

Features

● Ultra-low noise, suitable for RF applications
● Super fast response line/load transient
● Quick Start (generally 50μs)
● < Stand-by current at shutdown at 0.01μA
● Low voltage: 220mV@300mA
●-wide operating voltage range :2.5V ~ 5.5V
● ttl logic controlled shutdown input
● low temperature coefficient
●-current limiting protection
● hot stop protection
● stabilization requires only 1μF output capacitance
●  High rejection rate of power supply
● can be customized voltage
● meets RoHS standard, 100% lead free (Pb)

Application 

● CDMA/GSM mobile phone
● Battery powered devices
● Laptop, PDA, laptop
● Handheld instrument
● PCMCIA card
● Portable information equipment