TPS73801-SEP

• VID V62/18616
• Radiation hardened
  • SEL, SEB, and SEGR immune up to LET = 43 MeV-cm²/mg
  • SET and SEFI characterized up to LET = 43 MeV-cm²/mg
  • TID assured for every wafer lot up to 20 krad(Si)
  • TID characterized up to 50 krad(Si)
• Space enhanced plastic
  • Au bondwire and NiPdAu lead finish
  • Enhanced mold compound for low outgassing
  • One fabrication, assembly, and test site
  • Extended product life cycle
  • Extended product change notification
  • Product traceability
• Optimized for fast transient response
• Output current: 1 A
• Dropout voltage: 300 mV
• Low noise: 45 µV_RMS (10 Hz to 100 kHz)
• 1-mA quiescent current
• No protection diodes needed
• Controlled quiescent current in dropout
• Adjustable output voltage: 1.21 V to 20 V
• Less than 1-µA quiescent current in shutdown
• Stable with 10-µF output capacitor
• Stable with ceramic capacitors
• Reverse-battery protection
• No reverse current
• Thermal limiting

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The TPS73801-SEP is a low-dropout (LDO) regulator optimized for fast transient response. The device can supply 1 A of output current with a dropout voltage of 300 mV. Operating quiescent current is 1 mA and drops to less than 1 µA in shutdown. Compared to many other regulators, quiescent current is well controlled and does not rise in dropout. In addition to fast transient response, a very low output noise makes the TPS73801-SEP regulator ideal for sensitive RF supply applications.

Output voltage range is from 1.21 to 20 V and is stable with use of output capacitors as low as 10 µF. Small ceramic capacitors can be used without the necessary addition of ESR. Internal protection circuitry includes reverse-battery protection, current limiting, thermal limiting, and reverse-current protection. The TPS73801-SEP regulator is available with an adjustable 1.21-V reference voltage and in the 6-pin TO-223 (DCQ) package.