NCP4671

NCP4671 400 mA, Dual Rail Ultra Low Dropout Linear Regulator The NCP4671 is a CMOS Dual Supply Rail Linear Regulator designed to provide very low output voltages. The Dual Rail architecture which separates the power for the LDO control circuitry (provided via the Vbias pin) from the main power path (Vin) offers ultra−low dropout performance, allowing the device to operate from input voltages down to 0.9 V and to generate a fixed high accuracy output voltage as low as 0.6 V. The NCP4671 offers excellent transient response with very low quiescent currents. The family is available in a variety of packages: SC−70, SOT23 and a small, ultra thin 1.2 x 1.2 x 0.4mm XDFN. Features Bias Supply Voltage Range : 2.4 V to 5.25 V (VOUT < 0.8 V) Set VOUT + 1.6 V to 5.25 V (VOUT ≥ 0.8 V) Power Input Voltage Range : 0.9 V to VBIAS (VOUT < 0.8 V) Set VOUT + 0.1 V to VBIAS (VOUT ≥ 0.8 V) Output Voltage Range: 0.6 to 1.5 V (available at 0.1 steps) Very Low Dropout: 180 mV Typ. at 400 mA Quiescent Current: 28 mA Standby Current: 0.1 mA ±15 mV Output Voltage Accuracy (TA = 25°C) High PSRR: 80 dB at 1 kHz (Ripple at VIN) 50 dB at 1 kHz (Ripple at VBIAS) Current Fold Back Protection Typ. 120 mA Available in XDFN, SC−70, SOT23 Package These are Pb−Free Devices Typical Applications Battery Powered Equipments Portable Communication Equipments Cameras, VCRs and Camcorders VIN DC/DC converter C1 C2 1m 1m NCP4671x VIN VBIAS VOUT CE GND VOUT C3 2m 2 http://onsemi.com MA...