TPS74401 (ACTIVE) Single-output 3A LDO regulator, adj (0.8V to 3.3V), fast transient response, programmable soft start

 

Models (5)

Title Category Type Date
TPS74401 PSpice Transient Model (Rev. B) PSpice Model ZIP 09 May 2016
TPS74401 Unencrypted PSpice Transient Model PSpice Model ZIP 09 May 2016
TPS74401 TINA-TI Transient Spice Model TINA-TI Spice Model ZIP 09 Feb 2009
TPS74401 TINA-TI DC Reference Design TINA-TI Reference Design TSC 09 Feb 2009
TPS74401 TINA-TI Transient Reference Design TINA-TI Reference Design TSC 09 Feb 2009

Reference designs

Power Supply Reference Design for Optimizing Spur and Phase Noise in RF-sampling DACs

This reference design provides an efficient power supply scheme to power-up the RF-sampling DAC38RF8x digital-to-analog data converter (DAC) without sacrificing performance and also reduces board area and BOM. The reference design uses both DC/DC switchers and an LDO to power-up the DAC38RF8x while (...)

View the Important Notice for reference designs covering authorized use, intellectual property matters and disclaimers.

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Thermal calculator

Estimate the LDO IC temperature at your design conditions:
Part number
    Range
Vin  V
Vout  V
Iout  A
Ambient temp  °C
Package option
Voltage option
PCB construction
Enhanced Thermal = single thermal spreading plane of 1 oz Cu
Minimum Thermal = single thermal spreading plane of 1/2 oz Cu
View the user guide for more details.

Junction temperature vs. PCB copper coverage area
These are estimated power dissipation and thermal results.
Care must be taken to ensure that device junction temperature
does not exeed the maximum ratings as indicated in the datasheet.

This calculator uses the PCB copper area to estimate the device junction temperature. See notes on usage and calculation method.