GENERAL DESCRIPTION

The SGM2045S is an ultra-low noise, low VIN, high

PSRR, high accuracy and low dropout voltage linear

regulator. It is capable of supplying 300mA output

current with typical dropout voltage of only 100mV. The

operating input voltage range is from 1.2V to 5.5V and

output voltage range is from 1.2V to 3.3V.

Other features include logic-controlled shutdown mode,

short-circuit current limit and thermal shutdown

protection. The SGM2045S has automatic discharge

function to quickly discharge VOUT in the disabled status.

The SGM2045S 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 SGM2045S is available in a Green XTDFN-1×1-4L

package. It operates over an operating temperature

range of -40℃ to +125℃.

FEATURES

● Operating Input Voltage Range: 1.2V to 5.5V

● Fixed Outputs of 1.2V, 1.8V, 2.8V, 3.0V, 3.3V

● 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

● 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 a Green XTDFN-1×1-4L Package

APPLICATIONS

Portable Electronic Devices

Smoke Detectors

IP Cameras

Wireless LAN Devices

Battery-Powered Equipment

Smartphones and Tablets

Digital Cameras and Audio Devices