SGM2045.pdf• Operating Input Voltage Range: 1.1V to 5.5V
• Fixed Output Voltage Option: 0.6V to 4.2V
• Ultra-Low Noise: 9.5μVRMS (TYP)
• Ultra-Low Quiescent Current: 15μA (TYP)
• Standby Current: 0.03μA (TYP)
• High PSRR: 92dB (TYP) at 1kHz
• Low Dropout Voltage:
100mV (TYP) at 300mA when
VOUT = 1.8V(XTDFN-1×1-4L)
• 80mV (TYP) at 300mA when
VOUT = 1.8V(WLCSP-0.64×0.64-4B-A)
• Output Short-Circuit Protection
• Thermal Shutdown Protection
• Fast Load Transient Response
• Stable with 1μF Small Case
Size CeramicCapacitors
• -40℃ to +125℃ Operating
Temperature Range
• Available in Green XTDFN-1×1-4L
andWLCSP-0.64×0.64-4B-A Packages
• Input voltage from 1.5 to 5.5 V
• Ultra low dropout voltage
(300 mV typ. at 300 mA load)
• Very low quiescent current
(20 µA typ. at no load, 0.03 µA typ. in off mode)
• Output voltage tolerance: ± 0.5 % (A version)
or ± 2.0 % @ 25 °C (standardversion)
• 300 mA guaranteed output current
• High PSRR (80 dB@1 kHz, 50 db@100 kHz)
• Wide range of output voltages available
on request: from 0.8 V up to 5.0 V in 50mV step
• Logic-controlled electronic shutdown
• Internal soft-start
• Optional output voltage discharge feature
• Compatible with ceramic capacitor COUT = 0.47 µF
• Internal constant current and thermal protections
• Available in DFN4 1x1
• Operating temperature range: -40 °C to 125 °C
