特性 Features

? ±1% reference voltage over line, load, temperature and

radiation

? Current mode control for excellent dynamic response

? Full Mil-temp range operation (TA = -55°C to +125°C)

? High efficiency >90%

? Fixed 1MHz operating frequency

? Available in a thermally enhanced heatsink package - R48.B

? Operates from 3V to 5.5V supply

? Adjustable output voltage

- Two external resistors set VOUT from 0.8V to ~85% of VIN

? Bidirectional SYNC pin allows two devices to be

synchronized 180° out-of-phase

? Starts into prebiased load

? Power-good output voltage monitor

? Adjustable analog soft-start

? Input undervoltage, output undervoltage and output

overcurrent protection

? Electrically screened to DLA SMD 5962-09225

? QML qualified per MIL-PRF-38535 requirements

? Radiation acceptance testing - ISL70001SEH

- HDR (50-300rad(Si)/s): 100krad(Si) (min)

- LDR (<10mrad(Si)/s): 50krad(Si) (min)

? Radiation acceptance testing - ISL70001SRH

- HDR (50-300rad(Si)/s): 100krad(Si) (min)

? SEE hardness (see SEE report for details)

- SEL and SEB LETeff . . . . . . . . . . . 86.4MeV/mg/cm2 (min)

- SEFI X-section (LETeff = 86.4MeV/mg/cm2) 1.4 x 10-6

cm2 (max)

- SET LETeff (<1 pulse perturbation) 86.4MeV/mg/cm2

(min)