SVPL3R312SG SERIES
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SVPL3R312SG SERIES - 1

vpr Power Your Critical Mission Today A SVPL3R312SG SERIES o-oSPACE QUALIFIED POINT OF LOAD CONVERTERS Models Available Input: 3.1 V to 5.5 V 12 A output Qualified to MIL-PRF-38534 Class H and Class K 1.0 DESCRIPTION The SVPL 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 and analysis. The SVPL Series has been characterized for Total Ionizing Dose (TID) performance including Enhanced Low Dose Rate Sensitivity (ELDRS) and for Single Event Effects (SEE) per VPT's DLA-approved Radiation Hardness Assurance (RHA) plan per MIL-PRF-38534, Appendix G, Level R. The SVPL3R312SG is based on the Intersil ISL70002SEH radiation-hardened monolithic buck regulator. It is designed to operate from a nominal 3.3 V or 5 V bus. The SVPL3R312SG supplies low voltages at 12 A with high efficiency and fast transient response, making it an ideal choice to supply point-of-load applications such as high performance space processors. 1.1 FEATURES • Operates from 3.1 - 5.5 V input • Adjustable Output from 0.8 - 3.8 V • Up to 12 Amps Output • High Efficiency, up to 93% • High Power Density, up to 134 W/in3 • Output Enable Control • Low Output Noise • Over Current Protection • Bi-directional SYNC pin allows devices to be synchronized 1.2 SPACE LEVEL CHARACTERIZATIONS • Total Ionizing Dose Performance • High Dose Rate [50-300 rad(Si)/s] > 100 krad(Si) • Low Dose Rate [<10 mrad(Si)/s] > 100 krad(Si) • Single Event Effects Performance • SEL, SEB, and SEGR LETth > 85 MeV-cm2/mg • SEFI Threshold LETth> 58 MeV-cm2/mg • SEFI X-section (LETeff = 85 MeV-cm2/mg) < 6.59x10-7 cm2 • SET fully characterized for cross section and magnitude • Operation from -55 °C to +125 °C • 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 # 5962-17217 • 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-welded hermetic metal case • Standard gullwing or optional straight-lead versions available 1.5 SIMILAR PRODUCTS AND ACCESSORIES • SVGA0515S 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. VPT, its logo and tagline are registered trademarks in the U.S. Patent and Trademark Office. All other names, product names and trade names may be trademarks or registered trademarks of their respective holders.

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SVPL3R312SG SERIES - 2

vpr Power Your Critical Mission Today O- Slave Mode Synchronization Vlaster Mode Synchronization 1. Rtrim should be connected directly across pins 11 and 12 as close as possible to the SVPL. 2. AGND should be connected to GND close to the SVPL. Voltage difference between the AGND and the GND pins greater than 0.3 V may result in regulation error and/or damage to the SVPL. 4. If not synchronizing converters, use Master Mode Synchronization connections and leave pin 9 open. 5. If not using PGOOD, leave pin 10 open. 6. Rcomp and Ccomp are optional components that can be used to optimize the...

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vpr Power Your Critical Mission Today O- Tcase = -55 °C to +125 °C, Vin = +5 V ± 1% or 3.3 V ± 1%, Full Load, Unless Otherwise Specified Parameter Conditions Min Typ Max Units OUTPUT Voltage Tcase = -55 °C to +125 °C -3.0 - +3.0 %Vout 1. Performance specifications are guaranteed with 100 mF from VIN to GND and 220 mF from VOUT to GND. 2. Verified by initial electrical design verification. Post design verification, parameter shall be guaranteed to the limits specified. 3. Dependent on output voltage. 4. Time for output voltage to settle within 1% of steady-state value. 5. End-of-Life...

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vpr Power Your Critical Mission Today O- E-mail: vptsales@vptpower.com Web: www.vptpower.com

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vpr Power Your Critical Mission Today O- 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 Phone:(425) 353-3010 Fax: (425) 353-4030E-mail: vptsales@vptpower.com Web: www.vptpower.com

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vpr Power Your Critical Mission Today o- SVPL3R312SG 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...

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SVPL3R312SG 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 SVPL3R312SG is a non-isolated, fixed-frequency, radiation-hardened, synchronous buck converter based on the Intersil ISL70002SEH. It is optimized for low voltage point-of-load (POL) applications. The SVPL3R312SG operates from a 3.1 to 5.5 V input and provides a stepped-down, precisely regulated, programmable output voltage at high efficiency. 6.1.2 Source Impedance The...

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