TPS7A4501-SP Radiation-hardness-assured (RHA) wide-VIN low-dropout (LDO) voltage regulator |

This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
Radiation-hardness-assured (RHA) wide-VIN low-dropout (LDO) voltage regulator


Recommended alternative parts

  • TPS7H1101A-SP  - The device has the SAME FUNCTIONALITY as the compared device, but is not pin-for-pin equivalent and may not be parametrically equivalent. 


The TPS7A4501-SP is a low-dropout (LDO) regulator optimized for fast-transient response. The 5962-1222402VHA can supply 750 mA of output current with a dropout voltage of 300 mV. The 5962R1222403VXC can supply 1.5 A of output current with a dropout voltage of 320 mV. Quiescent current is well controlled; it does not rise in dropout, as with many other regulators. In addition to fast transient response, the TPS7A4501-SP regulator has very-low output noise, which makes it ideal for sensitive RF supply applications.

Output voltage range is from 1.21 to 20 V. The TPS7A4501-SP is stable with output capacitance as low as 10 µF. Small ceramic capacitors can be used without the necessary addition of ESR, as is common with other regulators. Internal protection circuitry includes reverse-battery protection, current limiting, thermal limiting, and reverse-current protection. The device is available as an adjustable device with a 1.21-V reference voltage. The 5962-1222402VHA is available in 10-pin CFP (U) package and 5962R1222403VXC is available in thermally-enhanced 10-pin CFP (HKU) package. Known good die (KGD) option is available for both 5962-1222402V9A for non-RHA version and 5962R1222403V9A for RHA.


  • 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

All trademarks are the property of their respective owners.


Compare all products in Linear regulators (LDO) Email Download to Excel
Part number Order Output options Iout (Max) (A) Vin (Max) (V) Vin (Min) (V) Vout (Max) (V) Vout (Min) (V) Fixed output options (V) Package Group Features Regulated outputs (#) Operating temperature range (C) Thermal resistance θJA (°C/W) Noise (uVrms) Rating PSRR @ 100 KHz (dB) Accuracy (%) Dropout voltage (Vdo) (Typ) (mV) Iq (Typ) (mA) Package size: mm2:W x L (PKG) Radiation, SEL (MeV.cm2/mg) Radiation, TID (Typ) (krad)
TPS7A4501-SP Order now Adjustable Output     1.5     20     2.3     20     1.21     0     CFP | 10
CFP | 10    
Reverse Current Protection    
1     -25 to 125
-55 to 125
25 to 25    
28     35     Space     38     3     270     1     10CFP: 40 mm2: 6.35 x 6.35 (CFP | 10)
10CFP: 45 mm2: 6.48 x 7.02 (CFP | 10)    
86     100    
TPS7H1101A-SP Samples not available Adjustable Output     3     7     1.5     6.65     0.8     0     CFP | 16     Enable
Soft Start
Power Good
Adjustable Current Limit
Current Sense    
1     -55 to 125
25 to 25    
75.4     20     Space     25     2     210     7     16CFP: 106 mm2: 9.6 x 11 (CFP | 16)     85     100