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)