ADP151ACBZ-3.3-R7, LDO Voltage Regulator, Fixed, 2.2 V to 5.5 V in, 0.135 V Dout, 0.2 A, WLCSP-4

ADP151 is an ultralow noise, low dropout (LDO) linear regulator that operates from 2.2V to 5.5V and provides up to 200mA of output current. The low 135mV dropout voltage at 200mA load improves efficiency and allows operation over a wide input voltage range. Using an innovative circuit topology, the ADP151 achieves ultralow noise performance without the necessity of a bypass capacitor, making the device ideal for noise sensitive analog and RF applications. The ADP151 also achieves ultralow noise performance without compromising the power supply rejection ratio (PSRR) or transient line and load performance. The low 265µA of operating supply current at 200mA load makes the ADP151 suitable for battery-operated portable equipment. Applications includes RF, voltage controlled oscillator (VCO) and phase locked loop (PLL) power supplies, mobile phones, digital camera and audio devices, portable and battery-powered equipment, post DC to DC regulation, portable medical devices and automotive.

• Fixed output voltage of 3.3V
• Ultralow noise of 9µV rms, no noise bypass capacitor required
• Stable with 1µF ceramic input and output capacitors
• Low quiescent current (IGND = 10µA with IOUT = 0µA, IGND = 265µA with IOUT = 200mA)
• ±2.5% accuracy over line, load, and temperature, <1µA low shutdown current, ±1% initial accuracy
• PSRR performance of 70dB at 10KHz
• Current-limit and thermal overload protection, logic controlled enable
• Includes an internal pull-down resistor on the EN input
• Short-circuit and thermal overload protection circuits prevent damage in adverse conditions
• 4-ball WLCSP (0.8mm x 0.8mm) package, -40°C to +125°C temperature range