The ISL70003ASEHFE/PROTO is an improved version of the ISL70003SEH regulator with both tighter load regulation (<0.3% typical) and a higher output current rating of 9A. Operating over an input voltage range of 3.0V to 13.2V with integrated low rDS(ON) MOSFETs makes this monolithic solution highly efficient. Also, a tightly regulated output voltage is possible, which is externally adjustable from 0.6V to ~90% of the input voltage. Continuous output load current capability is 9A for TJ ≤ +125°C and 6A for TJ ≤ +150°C.
The ISL70003ASEHFE/PROTO uses voltage mode control architecture with feed-forward and switches at a selectable frequency of 500kHz or 300kHz. Loop compensation is externally adjustable to allow for an optimum balance between stability and output dynamic performance.
The device features two logic-level disable inputs that can be used to inhibit pulses on the phase (LXx) pins to maximize efficiency based on the load current. The ISL70003ASEHFE/PROTO also supports DDR applications and contains a buffer amplifier for generating the VREF voltage.
High integration, best-in-class radiation performance and a feature-filled design make the ISL70003ASEHFE/PROTO an ideal choice to power many of today’s small form-factor applications.
Feature
- 95% peak efficiency
- Buffer amplifier for generating VREF voltage
- 3A current sinking capability
- TA = -55°C to +125°C
- TJ = -55°C to +150°C
- High dose rate (50-300rad(Si)/s): 100krad(Si)
- Low dose rate (0.01rad(Si)/s): 50krad(Si)
- SEB and SEL LETTH: 86.4MeV•cm2/mg
- SET at LET 86.4MeV•cm2/mg: < ±3% ΔVOUT
- SEFI LETTH: 60MeV•cm2/mg
