0.6-5V 6A Single Output 300-1200KHz Int. LDO Integrated PoL Solution IR3827 (Transient Analysis)

Open online SPICE simulator circuit link: IR3827_analog_12Vin_0.6-5Vo_300-1200KHz_6A_singleOut_intLDO_integrated_POL_TR_V1.TSC


3m

1,5m

6m

Over Current Protection
0: FLOAT 20 ms
1: VCC 10 ms
2: LGND 40 ms

IR3827 Synchronous Buck Regulator
12V Single Supply

The IR3827 SupIRBuckTM is an easy-to-use, fully integrated and highly efficient
DC/DC regulator. The onboard PWM controller and MOSFETs make IR3827 a
space-efficient solution, providing accurate power delivery for low output voltage
applications.

IR3827 is a versatile regulator which offers programmable switching frequency
and internally set current limit while operating in wide range of input and output
voltage conditions.

The switching frequency is programmable from 300kHz to 1.2MHz for an optimum
solution. It also features important protection functions, such as Pre-Bias startup,
thermally compensated current limit, over voltage protection and thermal shutdown
to give required system level security in the event of fault conditions.

{ 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 := 6;
{ Target Switching Frequency }
F_sw := 1M;
{ Number of output capacitors with value C_out }
C_out_Nr := 3;
{ Derated (DC & AC) value for a single output capacitor }
C_out := 22u;
{ 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 := 1.8;

Transient Analysis - accurate
Transient Analysis - fast
Technical Assistance
Product info: IR3827M


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