Features
 AEC-Q100 qualified
 Two step-down synchronous switching voltage
regulators with internal power switches:
– Output voltage selectable by external
divider (feedback voltage at 0.9 V)
– Minimum and maximum output is limited by
minimum and maximum duty cycle
– Internal high-side/ low-side NDMOS
– 270 kHz and 2.2 MHz selectable free-run
frequencies
– 125 kHz < f < 2.3 MHz synchronization
range at SYNCIN pin
– Programmable current limits at 2 A and
3.5A (> 2 A requires the addition of external
schottky diodes)
– Independent hardware enabling pins
– Independent supply inputs
– 180° phase shift between outputs
– Synch out 90° phase shift vs DC-DC1
– Programmable switching frequency divider
by 1, 2, 4, 8 between the two regulators
– The two buck converters can be connected
in parallel (for evaluation purposes only)
 Independent voltage supervisors/power-goods
with selectable thresholds through external pin:
– two available thresholds for UV/OV/PG
signals: 90-120-95% or 80-110-85%
(output voltage percentage)
 Soft-start, thermal protection
 One standby/linear regulator:
– Output selectable with external resistor
divider till 10 V
– Soft start, hardware enable pin
– 250 mA maximum current capability
– Standby operative mode
– Programmable power good thresholds
(85% or 95% output voltage percentage)
– Thermal protection
 Microcontroller reset with programmable
duration, activated by output under voltage or
watchdog fault
 External High Side Driver enable pin
 One integrated window watchdog (5 ms ≤
window ≤ 50 ms, with ± 20% tolerance)
 Short circuit protected outputs
 Low external components number
 Thermal shutdown junction temperature 150°C