GENERAL DEscriptION
The SGM2059 is a low VIN, ultra-low noise, high PSRR and low dropout voltage linear regulator. It is capable of supplying 300mA output current with typical dropout voltage of only 72mV. The operating input voltage range is from 1.1V to 5.5V. The fixed output voltage range is from 1.2V to 4.2V and adjustable output voltage range is from 0.793V to 5.0V.
Other features include logic-controlled shutdown mode, short-circuit current limit and thermal shutdown protection. The SGM2059 has automatic discharge function to discharge VOUT in the disabled status.
The SGM2059 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 SGM2059 is available in Green SOT-23-5 and SC70-5 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 1.2V, 1.5V, 1.8V, 2.5V, 2.8V, 2.9V, 3.0V, 3.3V and 4.2V
Adjustable Output from 0.793V to 5.0V
300mA Output Current
Output Voltage Accuracy: ±1% at +25℃
Low Current: 13μA (TYP)
Low Dropout Voltage: 72mV (TYP) at 300mA when VOUT = 2.8V
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 SOT-23-5 and SC70-5 Packages
APPLICATIONS
Portable Electronic Devices
Smoke Detectors
IP Cameras
Wireless LAN Devices
Battery-Powered Equipment
Smartphones and Tablets
Digital Cameras and Audio Devices