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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

T_A = -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 -40℃ to +125℃.

APPLICATION CIRCUIT

PIN CONFIGUTION

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