0.5-5V 35A Single Output 306-1454KHz Int. LDO Integrated PoL Solution IR38064 (AC Analysis)

Open online SPICE simulator circuit link: IR38064_analog_12Vin_0.5-5.0V_306-1454K_35A_singleOut_intLDO_integrated_POL_AC_V1.TSC

Bode Plot Requirements:
1. Phase Margin (PM) > 50 degrees
2. Crossover Frequency < Switching Frequency / 5 (F_sw/5)
3. Gain Margin (GM) > 10 dB

Over Current Protection
0: FLOAT 36 A
1: VCC 46 A
2: LGND 28 A

IR38064 Synchronous Buck Regulator with PMBus Interface
12V Single supply in Analog Mode

The IR38064 PMBus SupIRBuck™ is an easy-to-use, fully integrated and highly efficient
DC/DC regulator with I2C/PMBus interface. The onboard PWM controller and MOSFETs
make IR38064 a space-efficient solution, providing accurate power delivery for low
output voltage and high current applications.

The IR38064 can be comprehensively configured via PMBus and the configuration
stored in internal memory. In addition, PMBus commands allow run-time control, fault
status and telemetry.

The IR38064 can also operate as a standard analog regulator without any programming
and can provide current and temperature telemetry in an analog format.

{ Please double click here to enter design criteria }

{ Input Voltage }
V_in := 12;
{ Target output voltage }
V_out := 1.2;
{ Maximum output current }
I_out := 35;
{ Target Switching Frequency }
F_sw := 600k;
{ Derated (DC & AC) value for a single output capacitor }
C_out := 50.77u;
{ Number of output capacitors with value C_out }
C_out_Nr := 12;
{ Target Vout ripple }
Vout_ripple := 12m;
{ Compensation capacitor. Default is 2.2nF }
C8_Cc := 2.2n;
{ I_ripple vs Iout percentage }
L_ripple_percentage := 35;
{ Load step current }
I_step := 10.5;

AC Transfer Characteristic
Technical Assistance
Evaluation board: IRDC38064
Product info: IR38064MTRPBF

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