vpr Power Your Critical Mission Today A SVGA0515SG SERIES o-oSPACE QUALIFIED POINT OF LOAD CONVERTERS Models Available Input: 5V Nominal 15 A output Qualified to MIL-PRF-38534 Class H and Class K 1.0 DESCRIPTION The SVGA Series of space qualified point of load DC-DC converters is specifically designed for the harsh radiation environment of space applications. Performance is guaranteed through the use of hardened semiconductor components, radiation lot acceptance testing (RLAT) of non-hardened components, and analysis. The SVGA Series has been characterized for Total Ionizing Dose (TID) performance including Enhanced Low Dose Rate Sensitivity (ELDRS) and for Single Event Effects (SEE) according to VPT’s DLA-approved Radiation Hardness Assurance (RHA) plan per MIL-PRF-38534, Appendix G, Level R. Characterization is performed at both the component level and at the SVGA hybrid converter level. The SVGA Series of point of load DC-DC converters is radiation tolerant and suited for use in low Earth orbit (LEO), medium Earth orbit (MEO), geostationary orbit (GEO), deep space, and launch vehicle programs. 1.1 FEATURES • Operates from 5 V input • Adjustable Output from 0.8 to 3.4V • Up to 15 Amps Output • High Efficiency, up to 94% • High Power Density, up to 150 W/in3 • Output Inhibit Control • Low Output Noise • No Use of Optoisolators • Short Circuit Protection 1.2 SPACE LEVEL CHARACTERIZATIONS • Guaranteed TID performance to 100 krad(Si) including ELDRS. • SEE performance to 85 MeV/mg/cm2. Transients are fully characterized for cross section and magnitude. • Worst-case analysis, stress, radiation, reliability reports available 1.3 MANUFACTURING AND COMPLIANCE • Qualified to MIL-PRF-38534 Class H and Class K, DLA SMD # 5962-17205 • MIL-PRF-38534 element evaluated components • Manufactured in a MIL-PRF-38534 Class H and Class K facility • MIL-STD-883 • ISO-9001 1.4 PACKAGING • Low-profile: 1.110” x 1.110” x 0.276” • Max weight: 22 g • Precision seam-sealed hermetic metal case 1.5 SIMILAR PRODUCTS AND ACCESSORIES • SVGA0515S 15 A space qualified point of load DC-DC converter • SVGA0510S 10 A space qualified point of load DC-DC converter • SVGA0510SG 10 A space qualified point of load DC-DC converter • SVFA0510SG 10 A space qualified point of load DC-DC converter • SVFA0515SG 15 A space qualified point of load DC-DC converter • SVRGA0508S 8 A space qualified point of load DC-DC converter • Custom versions available • Space qualified isolated DC-DC converters. 6 - 100 W • EMI filters Products and reports described in this datasheet are subject to all export license restrictions and regulations which may include but are not limited to ITAR (International Traffic in Arms Regulations) and the Export Administration and Foreign Assets Control Regulations. Further restrictions may apply. Contact VPT sales for details.

vpr Power Your Critical Mission Today O- 1. Rtrim should be connected directly across pins 11 and 12 as close as possible to the SVGA. 2. AGND should be connected to GND close to the SVGA. Voltage difference between the AGND and the GND pins greater than 0.3 V may result in regulation error and/or damage to the SVGA. 3. If not using INH, leave pin 9 open. 4. Rcomp and Ccomp are optional components that can be used to optimize the SVGA transient response. 3.0 SPECIFICATIONS 3.1 ABSOLUTE MAXIMUM RATINGS

vpr Power Your Critical Mission Today O- Tcase = -55 °C to +125 °C, Vin = +5 V ± 1%, Full Load, Unless Otherwise Specified Sales Information Phone:(425) 353-3010 Fax: (425) 353-4030E-mail: [email protected] Web: www.vptpower.com SVGA0515SG - 4.0 Page 3 Performance specifications are guaranteed with 100gF from VIN to GND. Verified by initial electrical design verification. Post design verification, parameter shall be guaranteed to the limits specified. Output voltage not necessarily in regulation. Dependent on output voltage. Time for output voltage to settle within 1% of steady-state value....

vpr Power Your Critical Mission Today O- 4.0 EFFICIENCY CURVES 4.1.1 SVGA0515SG Efficiency (Typical, 25 °C, Vin = 5V) 95 93 E-mail: [email protected] Web: www.vptpower.com

SVGA0515SG Series 5.0 MECHANICAL OUTLINES AND PINOUT Standard Package Option: 1. Tolerances are +0.005” unless otherwise stated 2. Case temperature is measured on the center of the baseplate surface 3. Materials: Case (Steel, gold over nickel plated); Cover (Kovar, nickel plated); Pin (Copper-cored alloy 52, gold over nickel plated, 63/37 SnPb solder dipped); Pin Seals (Glass) Sales Information E-mail: [email protected]

vpr Power Your Critical Mission Today o- SVGA0515SG Series5.0 MECHANICAL OUTLINES AND PINOUT (CONTINUED)Optional Straight-Lead Package: 1.11 Oin [28.19mm 1. Tolerances are +0.005” unless otherwise stated 2. Case temperature is measured on the center of the baseplate surface 3. Materials: Case (Steel, gold over nickel plated); Cover (Kovar, nickel plated); Pin (Copper-cored alloy 52, gold over nickel plated); Pin Seals (Glass) 4. Pins may have exposed nickel plating (not base metal) beyond the ceramic tie bars due to the plating process. No nickel plating is exposed between the tie bar and case....

SVGA0515SG Series 6.0 TECHNICAL NOTES Please note that many of these functions are also demonstrated in detail on the VPT website in the form of technical video labs. 6.1 GENERAL INFORMATION 6.1.1 Topology Description The SVGA0515SG is a non-isolated, fixed-frequency, radiation-hardened, synchronous buck converter. It operates from a 5 V input and provides a stepped-down, precisely regulated, programmable output voltage at high efficiency. The SVGA0515SG is optimized for low voltage point-of-load (POL) applications. 6.1.2 External Components The SVGA0515SG Series has internal input and output...

SVGA0515SG Series 6.2.2 Adjusting the Output Voltage (TRIM) The output voltage of the converter is set with an external resistor connected from the TRIM pin to the AGND pin. Use the equations or table below to choose the trim resistor value. Trim resistor tolerance of 0.1% is recommended to achieve an accurate output voltage. The default output voltage with the TRIM pin left open is 0.8 V. SVGA0515SG ݑŰݑ Űݑpݑpݑpݑpݑpݑ pݑpݑ = pݑɰݑɰݑ°ݑ°ݑ°ݑ°ݑ°ݑ = 6.2.3 Output Capacitors Output capacitors for point-of-load (POL) DC/DC converters should be chosen to meet output voltage ripple and transient requirements....