Automotive NR1640 200mA Ultra-low Noise Voltage Regulator
2023-07-03
●OVERVIEW
■The NR1640 is a CMOS-based ultra-low noise, high PSRR voltage regulator featuring 200 mA output current and 5.5 V maximum input voltage.
■With noise characteristics of 6 μVrms and high ripple rejection of 80 dB or more @100 kHz, high quality power can be supplied, ideal for high precision sensing systems where noise is an issue.
■The slope of output voltage at startup can be selected from 4 types.
■These options will meet the demand of suppression of inrush current and start-up slope requirement. In addition, the auto discharge function option will contribute to make the output shutdown fast to discharge output capacitance with internal discharge FET.
●KEY SPECIFICATIONS
■AEC-Q100 grade 1 Compliant
■Input Voltage Range (Maximum Rating)：
▲2.7 V to 5.5 V (6.5 V)
■Operating Temperature Range： −40 °C to 125 °C
■Output Voltage Range： 2.5 V to 4.8 V
■Output Current： 200 mA
■Quiescent Current： Typ.350 μA
■Output Noise Voltage： Typ.6 μVrms (IOUT = 100 mA)
■Ripple Rejection：Typ.80 dB (f = 1 kHz)
▲Typ.80 dB (f = 100 kHz)
■Dropout Voltage： Typ.0.13 V(IOUT = 200 mA, VSET = 3.3 V)
■Thermal Shutdown Function： Typ.165 °C
■Slope of Output Voltage at Start-up：
▲55 / 110 / 220 / 440 μs / V
▲Selectable from 4 types
■Auto-discharge Function：Selectable by product name
■The NR1640 is a CMOS-based ultra-low noise, high PSRR voltage regulator featuring 200 mA output current and 5.5 V maximum input voltage.
■With noise characteristics of 6 μVrms and high ripple rejection of 80 dB or more @100 kHz, high quality power can be supplied, ideal for high precision sensing systems where noise is an issue.
■The slope of output voltage at startup can be selected from 4 types.
■These options will meet the demand of suppression of inrush current and start-up slope requirement. In addition, the auto discharge function option will contribute to make the output shutdown fast to discharge output capacitance with internal discharge FET.
●KEY SPECIFICATIONS
■AEC-Q100 grade 1 Compliant
■Input Voltage Range (Maximum Rating)：
▲2.7 V to 5.5 V (6.5 V)
■Operating Temperature Range： −40 °C to 125 °C
■Output Voltage Range： 2.5 V to 4.8 V
■Output Current： 200 mA
■Quiescent Current： Typ.350 μA
■Output Noise Voltage： Typ.6 μVrms (IOUT = 100 mA)
■Ripple Rejection：Typ.80 dB (f = 1 kHz)
▲Typ.80 dB (f = 100 kHz)
■Dropout Voltage： Typ.0.13 V(IOUT = 200 mA, VSET = 3.3 V)
■Thermal Shutdown Function： Typ.165 °C
■Slope of Output Voltage at Start-up：
▲55 / 110 / 220 / 440 μs / V
▲Selectable from 4 types
■Auto-discharge Function：Selectable by product name
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