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 Ceramic Capacitors
• -40℃ to +125℃ Operating Temperature Range
• Available in Green XTDFN-1×1-4L and
WLCSP-0.64×0.64-4B-A Packages
• SOT-23-5 package with 60.3°C/W RθJA available
• Input voltage range: 1.45V to 5.5V
• Low IQ: 25μA (typical)
• Low dropout:
– 238mV (maximum) at 500mA (3.3VOUT)
• Output accuracy: 1% (maximum at 85°C)
• Built-in soft-start with monotonic VOUT rise
• Foldback current limit
• Active output discharge
• High PSRR: 46dB at 100kHz
• Stable with a 1μF ceramic output capacitor
• Packages:
– 2.9mm × 2.8mm SOT-23-5 (DBV)
– 2.9mm × 2.8mm SOT-23-5 (DYD) with thermal pad
– 1mm × 1mm X2SON-4 (DQN)
– 2mm × 2mm WSON-6 (DRV)
