Analog Devices LT3070_0.9v voltage regulator

The BASIC on the board is to enable the internal reference source and a dip switch to select on and off.

In addition, I plan to draw all Analog Devices' LT series chips. ~~~~
LT®3070-1 is a low-voltage, UltraFast™ transient response
linear regulator. The device delivers up to 5A of output current with
a typical dropout voltage of 85mV. A 0.01µF reference bypass capacitor
reduces output voltage noise to 25µVRMS. The LT3070-1 EN
pin controls the reference soft-start feature, while the LT3070
controls the reference soft-start through the BIAS pin supply voltage.
The high bandwidth of the LT3070-1 allows the use of low ESR ceramic capacitors,
saving body capacitance and cost. The features of the LT3070-1 make it ideal
for high-performance FPGA, microprocessor or sensitive communications power applications. The output voltage is digitally selectable in 50mV increments from 0.8V to 1.8V . The headroom feature allows the user to adjust the system output voltage in ±1%, ±3%, or ±5% increments. This IC integrates a unique tracking feature that controls the buck regulator to power the input of the LT3070-1. This tracking function drives the buck regulator to maintain the LT3070-1's input voltage at VOUT + 300mV, thereby minimizing power consumption. Internal protection features include UVLO, reverse current protection, precision current limit with power foldback, and thermal shutdown. The LT3070-1 regulator is available in a thermally enhanced 28-pin 4mm x 5mm QFN package. ■ Output current: 5A ■ Dropout voltage: 85mV (typ) ■ Enable function soft-start voltage reference ■ Digitally programmable VOUT: 0.8V to 1.8V ■ Digital output margin adjustment: ±1%, ±3% or ± 5% ■ Low output noise: 25μVRMS (10Hz to 100kHz) ■ Multiple devices can be connected in parallel to deliver 10A or more ■ Precision current limit: ±20%