DESCRIPTION

The RS3221 series low-power, low-dropout, CMOS LDO operate from 1.7V to 7.5V input voltage that can supply up to 200 mA of output current. Designed to meet the requirements of analog circuits, the RS3221 series device provides low noise, high PSRR, low quiescent current, and low line and load transient response.

The device is designed to work with a 1-µF input and a 1-µF output ceramic capacitor (no separate noise bypass capacitor required). An external noise bypass capacitor connected to the device’s BP pin can further reduce the noise level.

Other features include a 10nA logic-controlled shutdown mode, foldback current limit and thermal shutdown protection.

The RS3221 series is available in Green UTDFN-1x1- 4, SOT23-3, SOT23-5, SOT353(SC70-5) and

SOT89-3L(L-Type) package. It operates over an ambient temperature range of -40°C to +85°C.

FEATURES

•  Low Dropout Voltage

•  Thermal-Overload Protection

•  Output Current Limit

•  10nA Logic-Controlled Shutdown

•  1μA Low Supply Current

•  1.7V to 7.5V Input Voltage Range

•  200mA Output Current

•  -40°C to +85°C Operating Temperature Range

•  Available in Green UTDFN-1x1-4, SOT23-5，

• SOT23-3, SOT353(SC70-5) and SOT89-3L (L-Type) Package

APPLICATIONS

• Cellular Telephones

•  Camera Modules

•  Modems

•  HiFi Audio Radio Transceivers

•  PLL/Synthesizer, Clocking

•  Medium-Current, Noise-Sensitive Applications