12V Low Dropout Linear Voltage Regulator IFX1763XEJV/LDV - Load Step Response

Open online SPICE simulator circuit link: power_LDO_IFX1763_application_circuit_load_step.TSC


Low Dropout Linear Voltage Regulator IFX1763 ADJ
Application Circuit: Load step response

{ Please double click here to enter design criteria }

{ Input Voltage [V] }
V_IN := 8.5;
{ Load Resistance }
R_Load := 48;
{ Ambient Temperature }
T_AMB := 25;
{ Number of Thermal Models }
Thermal_Model := 1;

Vout = 1.22V* (1 + R2/R1) + (Iadj*R2)

Thermal model description:
THERMAL_MODEL = 1: DSO8 1s0p, 600mm2
THERMAL_MODEL = 2: DSO8 1s0p, footprint
THERMAL_MODEL = 3: DSO8 2s2p
THERMAL_MODEL = 4: TSON10 1s0p, 600mm2
THERMAL_MODEL = 5: TSON10 1s0p, footprint
THERMAL_MODEL = 6: TSON10 2s2p

The IFX1763 ADJ is a low noise micropower LDO. The device is capable of supplying
an output current of 500mA with a dropout voltage of 320mV.

Its low quiescent current of 30µA makes the device also an excellent choice for
being used in battery-powered systems.

By means of an external bypass capacitor a very low noise level of the output voltage
can be achieved. At the same time the usage of such a bypass capacitor allows
to increase the reaction time leading to obtain faster transient response in case of load
steps as well as to modify the start-up behavior (soft start) when supply voltage is
ramped up rapidly.

The bypass capacitors can be used from none up to a maximum of 10nF within the
stability range of the regulator.




Other circuits
Technical Assistance
Voltage Regulator Finder

Product info: IFX1763