Space IC – 2 A Synchronous Rectified Step-Down Converter (SPPL12420RH) (02/2022)

The SPPL12420RH is a radiation hardened monolit¬hic synchronous buck regulator featuring integrated 110 mW MOSFETs that provide continuous 2 A output load current. Its current mode control circuitry provides fast transient response and cycle-by-cycle current limit.

The SPPL12420RH can be operated at input voltages up to 24 V, which is the derating reference. The SEE-related limitation of the input voltage depends on the target LET level.

The device is packaged in a hermetically sealed 16-pin flatpack with heatsink and straight leads.

Features:

• 2 A continuous output current
• Input voltage capability (derating reference): 24 V
• Minimum input voltage: 4.5 V
• Minimum output voltage: 0.923 V
• Latch-up immune (fully isolated SOI technology)
• Hermetic dual in-line 16-lead flatpack package
• Screened according to ESCC
• High, > 90%, efficiency (VIN = 5 V, 0.25 A < ILOAD < 2 A)
• Fixed 340 kHz frequency for small filter sizes
• 3 μA (MAX) shut-down supply current
• Programmable soft-start, cycle-by-cycle over-cur¬rent protection and input under-voltage lockout
• Extended temperature range: -55 °C to +125 °C

Applications:

• High-Density Point-of-Load Regulators
• Distributed Power Systems
• Satellite Systems
• Launch Vehicles

The SPPL12420RH Flight Models are ESCC 9000 certified and intended for flight missions (ESCC Component Number 910201401P; Certificate of Qualification No. 376). They are compliant with the ESCC Detail Specification 9102/014.

Here are the links to the certification documents.
https://escies.org/webdocument/showArticle?id=1073&groupid=6

SPPL12420RH ESCC Detail Specification No. 9102/014
http://escies.org/escc-specs/published/9102014.pdf

ESCC QPL (Qualified Parts List)
https://escies.org/webdocument/showArticle?id=119