."> IR3892_analog_12Vin_0.5-5.0Vo_0.5-5.0Vo_300-1000KHz_6A_dualOut_intLDO_integrated_POL_AC_V3.TSC - Infineon Designer

0.5-5V 6A Dual Output 300-1000KHz Int. LDO Integrated PoL Solution IR3892 (AC Analysis)

Open online SPICE simulator circuit link: IR3892_analog_12Vin_0.5-5.0Vo_0.5-5.0Vo_300-1000KHz_6A_dualOut_intLDO_integrated_POL_AC_V3.TSC


IR3892 Dual Synchronous Buck Regulator
12V Single Supply

NOTE:
Bode plot can be calculated for one channel at a time.
- For channel 1 bode plot select CH1_V_Out and CH1_acin.
- For channel 2 bode plot select CH2_V_Out and CH2_acin.

Double click on SW-SPDT1 and SW-SPDT2 and change "DC state" parameter to select signal.

{ Please double click here to enter design criteria }

{ Input voltage }
V_in := 12;
{ Target Switching Frequency }
F_sw := 600k;
{ Channel 1 target output voltage }
CH1_V_out := 1.8;
{ Channel 1 maximum output current }
CH1_I_out := 6;
{ Channel 1 number of output capacitors with value C_out }
CH1_C_out_Nr := 4;
{ Channel 1 derated (DC & AC) value for a single output capacitor }
CH1_C_out := 16.7u;
{ Channel 1 target Vout ripple }
CH1_Vout_ripple := 18m;
{ Channel 1 compensation capacitor. Default is 2.2nF }
CH1_C13_Cc := 2.2n;
{ Channel 1 I_ripple vs Iout percentage }
CH1_L_ripple_percentage := 35;
{ Channel 1 load step current }
CH1_I_step := 1.8;
{ Channel 2 target output voltage }
CH2_V_out := 1.2;
{ Channel 2 maximum output current }
CH2_I_out := 6;
{ Channel 2 number of output capacitors with value C_out }
CH2_C_out_Nr := 4;
{ Channel 2 derated (DC & AC) value for a single output capacitor }
CH2_C_out := 17.4u;
{ Channel 2 target Vout ripple }
CH2_Vout_ripple := 12m;
{ Channel 2 compensation capacitor. Default is 2.2nF }
CH2_C23_Cc := 2.2n;
{ Channel 2 I_ripple vs Iout percentage }
CH2_L_ripple_percentage := 35;
{ Channel 2 load step current }
CH2_I_step := 1.8;

The IR3892 SupIRBuck® is an easy-to-use, fully integrated and highly efficient DC/DC
regulator. The onboard PWM controller and MOSFETs make IR3892 a space-efficient
solution, providing accurate power delivery for low output voltage.

IR3892 is a versatile regulator which offers programmability of switching frequency and
a fixed current limit while operating in wide input and output voltage range.

The switching frequency is programmable from 300kHz to 1.0MHz for an optimum
solution. It also features important protection functions, such as Over Voltage Protection
(OVP), Pre-Bias startup, hiccup current limit and thermal shutdown to give required
system level security in the event of fault conditions.


Other circuits
Technical Assistance
Evaluation board: IRDC3892
Product info: IR3892M
AC Transfer Characteristic