0.6-6V 3A Single Output 2000KHz Int. LDO Integrated PoL Solution IR3823A (Transient, AC & Efficiency Analysis)

Open online SPICE simulator circuit link: IR3823A_EVAL_3823A_12Vin_1.2_600KHz_3A_singleOut_intLDO_integrated_POL_TR_V1.3.TSC

0.6-6V 3A Single Output 2000KHz Int. LDO Integrated PoL Solution IR3823A
(Transient, AC & Efficiency Analysis)

C13_19=449u
NrCout=3
Cout_MLCC=44.9u
R_load1=600m

The IR3823A is an easy-to-use, fully integrated dc - dc Buck regulator. The onboard PWM
controller and MOSFETs with integrated bootstrap diode make IR3823A a small footprint
solution, providing high-efficiency power delivery. Furthermore, it uses a fast Constant On-Time (COT)
control scheme, which simplifies design efforts and provides fast control response.

The IR3823A has an internal low dropout voltage regulator, allowing operation with a single
supply. The IR3823A is a versatile regulator, offering programmable switching frequency
from 600 kHz to 2 MHz, two selectable soft start times, Forced Continuous Conduction Mode (FCCM)
and Diode Emulation Mode (DEM) operation.

It also features important protection functions, such as pre-bias start-up, thermally compensated
current limit, over voltage and under voltage protection, and thermal shutdown to give required
system level security in the event of fault conditions.