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Current Sensors & Voltage Regs

RIGEL: High Temperature Adjustable 100mA Voltage Regulator

RIGEL: High Temperature Adjustable 100mA Voltage Regulator

The CHT-RIGEL is a high-temperature, high-reliability, 100mA adjustable linear voltage regulator suitable to generate any regulated voltage in the range +0.9V to +28V  from a standard +4.5 to 30V source.  Its typical operation junction temperature ranges from -55°C to +225°C, though it can exceed that range with some performance de-rating.

The regulator is self-protected with a built-in over-current limitation and thermal protection which is effective in the range +250°C to +300°C.

CHT-RIGEL brings unique benefits in applications where the ambient or operating temperature is above the temperature supported by traditional semiconductors, or in applications that operate at +155°C but require extended reliability.

The IC features a chip-enable (CE active low) input signal allowing placing the circuit in low-power, disable mode. The output voltage is adjustable by the external resistive feedback.

The CHT-RIGEL is a one-die solution, available in a tiny ceramic package TDFP-16 for applications where small PCB foot-print is critical.


  • Functional from -55 to +225°C (Tj)
  • +4.5 to +30V supply voltages
  • Output voltage from 0.9V to 28V
  • ±5% accuracy
  • 100mA output current
  • Validated at +225°C for 1000 hours.
  • Standby current (CE inactive) 40μA (typ)

The main application is precise voltage reference with low temperature drift for High Temperature electronic systems used in:

  • Regulated power supply in down-hole well logging
  • high temperature automotive,
  • Aeronautics or Aerospace applications.
  • High temperature industrial.
Typical performances:
  • Total precision (absolute + drift): ±5%
  • Over-current limitation
  • Thermal protection: 300°C Typ.
  • Quiescent current: 1.1mA
  • Available packaging: TDFP16

CISSOID is the leader in high temperature and extended life semiconductor solutions, delivering standard products and custom solutions for power management, power conversion and signal conditioning in extreme temperature and harsh environments. CISSOID provides high reliability products guaranteed from -55°C to +225°C and commonly used outside that range, from cryogenic lows to upper extremes.

RIGEL: High Temperature Adjustable 100mA Voltage Regulator

Quantity Order Code Package Temp. Range
CHT-STA5602C-TDFP16-T TDFP16 -55°C to +225°C
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