1.5 -7V Input, 3 Amp, Ultra Low Dropout Regulator


Recommended alternative parts

  • TPS7H1101A-SP  - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device. 
  • TPS7A4501-SP  - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.   Wider input voltage range support


The TPS7H1101-SP is a radiation-hardened LDO linear regulator that uses a PMOS pass element configuration. This device operates over a wide range of input voltage, from 1.5 V to 7 V while offering excellent PSRR. The TPS7H1101-SP features a precise and programmable foldback current limit implementation with a very-wide adjustment range. To support the complex power requirements of FPGAs, DSPs, or microcontrollers, the TPS7H1101-SP provides enable on and off functionality, programmable SoftStart, current sharing capability, and a PowerGood open-drain output.

The TPS7H1101-SP is available in a thermally-enhanced 16-pin ceramic flatpack package (CFP).


  • 5962R13202:
    • Radiation Hardness Assurance (RHA) up to TID 100 krad (Si)
    • Total Ionizing Dose 100 krad (Si)
    • ELDRS-Free 100 krad (Si)
    • Dose Rate 10 mRAD (si)/s
    • Single Event Latchup (SEL) Immune to LET = 85 MeV-cm2/mg
    • SEB and SEGR Immune to LET = 85 MeV-cm2/mg
    • SET/SEFI Onset Threshold > 40 MeV-cm2/mg, See Radiation Report for Details
      • Specifically Designed to Always Upset Low to Avoid Damage to Critical Downstream Component
    • SET/SEFI Cross-Section Plot, See Radiation Report for Details
  • Ultra-Low VIN Range: 1.5 V to 7 V
  • 3-A Maximum Output Current
  • Current Share/Parallel Operation to Provide up to 6-A Output Current
  • Stable With Ceramic Output Capacitor
  • ±2% Accuracy Over Line, Load, and Temperature
  • Programmable Soft-Start Through External Capacitor
  • Input Enable and Power-Good Output for Power Sequencing
  • Ultra-Low Dropout LDO Voltage: 62 mV at 1 A (25°C), VOUT = 1.8 V
  • Low Noise: 20.33 µVRMS VIN = 2 V, VOUT = 1.8 V at 3 A
  • PSRR: Over 45 dB at 1 kHz
  • Excellent Load/Line Transient Response
  • Foldback Current Limit
  • See the Tools & Software Tab
  • Thermally-Enhanced CFP Package (0.6°C/W RθJC)

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Parametrics Compare all products in Linear Regulators (LDO)

Output Options
Iout (Max) (A)
Vin (Max) (V)
Vin (Min) (V)
Vout (Max) (V)
Vout (Min) (V)
Package Group
Operating Temperature Range (C)
Noise (uVrms)
Output Capacitor Type
PSRR @ 100KHz (dB)
Accuracy (%)
Vdo (Typ) (mV)
Iq (Typ) (mA)
Package Size: mm2:W x L (PKG)
TPS7H1101-SP TPS7A4501-SP TPS7H1101A-SP
Adjustable Output    Adjustable Output    Adjustable Output   
3    1.5    3   
7    20    7   
1.5    2.3    1.5   
6.8    20    6.65   
0.8    1.21    0.8   
CFP    CFP    CFP   
-55 to 125    -25 to 125
-55 to 125
25 Only   
-55 to 125
25 to 25   
20.33    35    20   
Space    Space    Space   
Ceramic    Ceramic    Ceramic   
25    38    25   
2    3    2   
60    270    210   
7    1    7   
See datasheet (CFP)    See datasheet (CFP)    See datasheet (CFP)   

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WEBENCH® Designer TPS7H1101-SP

  Min   Max Range
Vin  V 1.5 to 7.0V
Vout  V 0.8 to 6.65V
Iout  A ≤ 3A
Ambient Temp  °C -55 to 125°C

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