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℃.

APPLICATIONS

Portable Electronic Devices

Smoke Detectors

IP Cameras

Wireless LAN Devices

Battery-Powered Equipment

Smartphones and Tablets

Digital Cameras and Audio Devices

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