SGM2045.pdf

GENERAL DESCRIPTION 

The SGM2045 is an ultra-low noise, low VIN, high PSRR and low dropout voltage linear regulator. It is capable of supplying 300mA output current with typical dropout voltage of only 80mV. The operating input voltage range is from 1.1V to 5.5V and output voltage range is from 0.6V to 4.2V. Other features include logic-controlled shutdown mode, short-circuit current limit and thermal shutdown protection. The SGM2045 has automatic discharge function to quickly discharge VOUT in the disabled status. The SGM2045 is suitable for applications which need low noise and fast transient response power supply, such as power supply of camera module in smart phone, etc. The SGM2045 is available in Green XTDFN-1×1-4L and WLCSP-0.64×0.64-4B-A packages. It operates over an operating temperature range of -40℃ to +125℃.

FEATURES 

●Operating Input Voltage Range: 1.1V to 5.5V 

● Fixed Outputs of 0.6V, 0.75V, 0.8V, 0.85V, 1.0V, 1.05V, 1.1V, 1.2V, 1.3V, 1.5V, 1.75V, 1.8V, 1.825V, 2.2V, 2.5V, 2.8V, 2.9V, 3.0V, 3.3V and 4.2V 

● 300mA Output Current 

● Output Voltage Accuracy: ±1% at +25℃ 

● Low Quiescent Current: 15μA (TYP) 

● 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) ● Ultra-Low Noise: 9.5μVRMS (TYP) 

● High PSRR: 92dB (TYP) at 1kHz 

● Current Limiting and Thermal Protection

● Excellent Load and Line Transient Responses 

● With Output Automatic Discharge 

● Stable with Small Case Size Ceramic Capacitors 

● Shutdown Supply Current: 0.03μA (TYP) 

● -40℃ to +125℃ Operating Temperature Range 

● Available in Green XTDFN-1×1-4L and WLCSP-0.64×0.64-4B-A Packages

APPLICATIONS 

Portable Electronic Devices 

Smoke Detectors

IP Cameras 

Wireless LAN Devices 

Battery-Powered Equipment 

Smartphones and Tablets 

Digital Cameras and Audio Devices