Radiation Hardened POL DC/DC CONVERTER

JAXA Qualified EEE Parts SAPJ Series

Features

  • Point Of Load (POL) DC/DC converter for space applications
  • Non isolated synchronous buck converter
  • Low voltage, high current power distribution system for FPGA, MPU and Memory
  • High efficiency up to 92%
  • Preset output voltage : 1.5V, 3.3V
  • Output current range : 0A to 3A (1.5V), 0A to 2A (3.3V)
  • Input voltage range : 4.5V to 16V
  • Adjustable output voltage : 1.2V to 3.3V
  • Output overcurrent limit
  • Output overvoltage limit
  • External ON/OFF control
  • TID : 1kGy(Si)
  • SEE : 64MeV/(mg/cm2)
  • Size: 15mm x 19mm (thickness:6mm)
  • Weight: 7.2g maximum

JAXA Qualified EEE Parts SAPJ Series

JAXA Qualified EEE Parts SAPJ Series

Related Documents

General Specification JAXA-QTS-2020B
Detail Specification JAXA-QTS-2020/0101C
Application Data Sheet JAXA-ADS-2020/0101C
Application Note AVPOL-AN-001B

These documents are available for download from "Database of JAXA Qualified EEE Parts and Materials"

Recommended Operating Conditions

No. Parameter Operating Condition
1 Operating Temperature Range (Case) -55°C to +125°C
2 Input Voltage +5V
3 Output Voltage (1.2V to 1.8V) Adjust for SAPJ-15S30
4 Output Voltage (2.5V to 3.3V) Adjust for SAPJ-33S20
5 Output Current 0A to 3A (Vo=1.2V,1.5V,1.8V)
0A to 2.6A (Vo=2.5V)
0A to 2A (Vo=3.3V)
6 Input capacitor (Chip ceramic) 30μF as a minimum (note1)
7 Output capacitor (Chip ceramic) 160μF as a minimum (note1)

(note1)

At all the usage condition ranges, considering capacitance change affected by such value variations, temperature characteristics and bias properties. From ESR point of view, it is recommended to use multiple fixed chip ceramic capacitors connected in parallel.

Line up

No. JAXA Part Number Model number Specification
1 JAXA2020/01011DBCR06 SAPJ-15S30 1.5V output
2 JAXA2020/01011DBCR09 SAPJ-33S20 3.3V output
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