GENERAL DESCRIPTION

The SGM2079xQ is a low noise, high PSRR, low

dropout voltage linear regulator. It is capable of

supplying 1A output current with typical dropout voltage

of only 130mV. The operating input voltage range is

from 2.2V to 5.5V and output voltage range is from

0.8V to 5V.

Other features include logic-controlled shutdown mode,

short-circuit current limit and thermal shutdown

protection. The SGM2079xQ has automatic discharge

function to quickly discharge VOUT in the disabled status.

This device is AEC-Q100 qualified (Automotive

Electronics Council (AEC) standard Q100 Grade 1) and

it is suitable for automotive applications.

The SGM2079xQ is available in a Green TDFN-3×3-8JL

package. It operates over an operating temperature

range of -40℃ to +125℃.

FEATURES

● AEC-Q100 Qualified for Automotive Applications

Device Temperature Grade 1

TA = -40℃ to +125℃

● Operating Input Voltage: 2.2V to 5.5V

● Enable Pin Accept Voltages Higher than the

Supply Voltage and up to 5.5V

● Adjustable Output Voltage: 0.8V to 5V

● Output Voltage Accuracy: ±2% at +25℃

● Low Dropout Voltage: 130mV (TYP) at 1A

● Low Noise at VOUT(NOM) = 1.1V (10Hz to 100kHz):

18μVRMS (TYP)

● Power Supply Rejection Ratio at VOUT(NOM) = 1.1V:

 74dB (TYP) at 1kHz

 66dB (TYP) at 10kHz

 42dB (TYP) at 1MHz

● Current Limiting and Thermal Protection

● Excellent Load and Line Transient Responses

● With Output Automatic Discharge

● Stable with Small Case Size Ceramic Capacitors

● -40℃ to +125℃ Operating Temperature Range

● Available in a Green TDFN-3×3-8JL Package

APPLICATIONS

Automotive Applications

PLL/VCO/RF Circuit

Audio Equipment