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)