Automotive, 300mA, Low Noise, High PSRR, Low IQ and Low Dropout Regulator.
SGM2085Q SGM2085Q.pdf

No.14169

FEATURES

 AEC-Q100 Qualified for Automotive Applications

  Device Temperature Grade 1

  TA = -40℃ to +125℃

 Operating Input Voltage Rang: 1.6V to 5.5V

 Enable Pin Accept Voltages Higher than the 

  Supply Voltage and up to 5.5V

 Fixed Output from 0.75V to 4.2V

 Adjustable Output from 0.8V to 5.0V

 Low Quiescent Current: 25μA (TYP)

 Low Dropout Voltage: 180mV (TYP) at 300mA

 Power Supply Rejection Ratio:

  SGM2085-1.8Q: 

  70dB (TYP) at 1kHz, 64dB (TYP) at 1MHz

  SGM2085-ADJQ:

  75dB (TYP) at 1kHz, 40dB (TYP) at 1MHz

 Current Limiting and Thermal Protection

 Low Start-Up Current

 UVLO with Hysteresis

 Supports 1.2V Logic Enable Input for ON/OFF  Control

 With Output Automatic Discharge

 Stable with Small Case Size Ceramic Capacitors

 -40℃ to +125℃ Operating Temperature Range

 Available in a Green SOT-23-5 Package

DESCRIPTION

The SGM2085xQ is an ultra-low noise, high PSRR and low dropout voltage linear regulator. It capable of supplying 300mA output current with typical dropout voltage of only 180mV. The operating input voltage range is from 1.6V to 5.5V and output voltage range is from 0.75V to 5.0V.
Other features include 1.2V logic-controlled shutdown mode, under-voltage lockout, short-circuit current limit and thermal shutdown protection. The SGM2085xQ 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 SGM2085xQ is available in a Green SOT-23-5 package. It operates over an operating temperature range of -40to +125℃.

APPLICATION CIRCUIT
PIN CONFIGUTION
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