Summary

The Texas Instruments TPS7A4501-SP is a low-dropout (LDO) regulator for space-grade subsystems such as FPGA, data converters and analog circuitry. The radiation hardened regulator is optimized for fast-transient response and is designed to have very-low output noise making it suitable for RF supply applications.

The quiescent current is well controlled. The regulator can be used with small ceramic capacitors. Reverse-battery protection, thermal limiting, current limiting and reverse-current protection are included as part of internal protection circuitry.

The 5962-1222402VHA is available in 10-pin CFP (U) package and 5962R1222403VXC is available in thermally enhanced 10-pin CFP (HKU) package. For both 5962R1222403V9A for RHA and 5962-1222402V9A for non-RHA versions, Known Good Die (KGD) option is available.

Applications

  • RF Components VCOs, Receivers, ADCs, Amplifiers and Clock Distributions
  • Clean Analog Supply Requirements
  • Available in Military (–55°C to 125°C) Temperature Range
  • Engineering Evaluation (/EM) Samples are Available

Orderable Part Numbers

Key features

  • QMLV Qualified SMD 5962-12224
  • Adjustable Output from 1.21 to 20 V
  • Optimized for Fast-Transient Response
  • High Output Voltage Accuracy: 1.15% at 25°C (Typical)
  • Dropout Voltage: 200 mV With ILOAD =750 mA (Typical)
  • Low Noise: 50 µVRMS (10 Hz to 100 kHz) for VOUT =5 V
  • High Ripple Rejection: 68 dB at 1 kHz
  • 1-mA Quiescent Current
  • No Protection Diodes Needed
  • Stable With Ceramic Output Capacitor
  • Reverse-Battery Protection
  • Reverse Current Protection
  • 5962-1222402VHA:
    • Wide Vin 2.3 to 20 V
    • Output Current: 750 mA
  • 5962R1222403VXC:
    • Wide Vin 2.9 to 20 V
    • Output Current: 1.5 A
    • Thermally-Enhanced HKU Package
    • Radiation Hardness Assurance (RHA) up to Total Ionizing Dose (TID) 100 krad (Si)
    • Exhibits Low Dose Rate Sensitivity But Remains Within the Pre-Radiation Electrical Limits at 100 krad Total Dose Level, as Allowed by MIL-STD-883, TM1019

Testing & qualification

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Last updated: 2021-12-21

TPS7A4501-SP

Radiation-hardness-assured (RHA), 1.5-V to 20-V, 1.5-A low-dropout (LDO) regulator

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Specs

input voltage
2.3 to 20 V
output voltage
1.21 to 20 V
output current
< 1.5 A
operating temperature
-55 to 125 C
export control
EAR99

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