Linear Regulator for High Fidelity Audio - BD37201NUX

BD37201NUX is a linear regulator of low noise (4.7μVrms) which is most suitable to high quality audio system. It operates at 2.7V to 5.5V and capable of supplying a maximum load of 500mA. In addition to the low noise, BD37201NUX has a high PSRR and good input transient fluctuation characteristic which makes it suitable for the stabilization of DC/DC converter output, and an ideal power supply to high precision analog circuits such as D/A converter (DAC) and Clock generator. Furthermore, when BD37201NUX is placed in standby mode, the supply current can be as small as 0μA (Typ) which can greatly reduce power consumption.

* This product is a STANDARD grade product and not recommend for on-vehicle devices.
Part Number
Unit Quantity
Minimum Package Quantity
Packing Type
BD37201NUX-TR Active VSON008X2030 4000 4000 Taping Yes
ch 1
Vin(Min.)[V] 2.7
Vin(Max.)[V] 5.5
Iout(Max.)[A] 0.5
Output Voltage Noise (Typ.) [μVrms] 4.72
PSRR 74dB(100Hz), ≧50dB(1MHz)
Circuit Current[mA] 1.33
Input Transient Response (Typ.)[mV] 5.0
Shutdown Function No
Standby Current (Typ.)[μA] 0.0
Thermal Shut-down Recover
Over Current Protection Yes
Under Voltage Lock Out Yes
Soft Start Variable
Load Regulation[mV] 3
    • Ultra Low Noise, High PSRR
    • Stable at 1µF ceramic input and output capacitors
    • Standby Mode that is controlled by Enable pin
    • Dropout Voltage: 200mV (at 500mA load)
    • Under Voltage Lockout Protection, Current Limit and Short Circuit Protection, Thermal Shutdown Protection
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Technical Data
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