TPS7A63-Q1 300-mA 40-V Low-Dropout Regulator With Ultra-Low IQ |


300-mA 40-V Low-Dropout Regulator With Ultra-Low IQ

300-mA 40-V Low-Dropout Regulator With Ultra-Low IQ - TPS7A63-Q1


The TPS7A63-Q1 and TPS7A6401-Q1 are a family of low-dropout linear voltage regulators designed for low power consumption and quiescent current less than 35 µA in light-load applications. These devices, designed to achieve stable operation even with a low-ESR ceramic output capacitor, feature an integrated programmable window watchdog and overcurrent protection. Designers can program the output voltage using external resistors. A low-voltage tracking feature allows for a smaller input capacitor and can possibly eliminate the need of using a boost converter during cold-crank conditions. The power-on-reset delay is fixed (250 µs typical), or an external capacitor can program the delay. Because of such features, these devices are well-suited in power supplies for various automotive applications.


  • Qualified for Automotive Applications
  • AEC-Q100 Test Guidance With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C2
  • Low Dropout Voltage
    • 300 mV at IOUT = 150 mA
  • 11-V to 40-V Wide Input-Voltage Range
    With up to 45-V Transients
  • 300-mA Maximum Output Current
  • Ultralow Quiescent Current
    • IQUIESCENT = 35 µA (Typical) at Light Loads
    • ISLEEP < 2 µA When EN = Low
  • Fixed (3.3-V and 5-V) and Adjustable (2.5-V to
    7-V) Output Voltages
  • Integrated Watchdog With Fault/Flag
  • Stable With Low-ESR Ceramic Output Capacitor
  • Integrated Power-On Reset
    • Programmable Delay
    • Open-Drain Reset Output
  • Integrated Fault Protection
    • Short-Circuit and Overcurrent Protection
    • Thermal Shutdown
  • Low Input-Voltage Tracking
  • Thermally Enhanced 14-Pin HTSSOP-PWP Package and 10-Pin VSON-DRK Package

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Parametrics Compare all products in Single Channel LDO

Iout (Max) (A)
Output Options
Vin (Min) (V)
Vin (Max) (V)
Fixed Output Options (V)
Vout (Min) (V)
Vout (Max) (V)
Iq (Typ) (mA)
Vdo (Typ) (mV)
Accuracy (%)
PSRR @ 100KHz (dB)
Output Capacitor Type
Operating Temperature Range (C)
TPS7A63-Q1 TPS7A6401-Q1 TPS7B63-Q1 TPS7B68-Q1
0.3     0.3     0.3     0.5    
Adjustable Output
Fixed Output    
Adjustable Output     Fixed Output     Fixed Output    
11     11     4     4    
40     40     40     40    
2.5     2.5     3.3     3.3    
7     7     5     5    
0.035     0.035     0.019     0.019    
300     300     300     150    
2     2     2     2    
40     40     55     50    
Ceramic     Ceramic     Ceramic
Automotive     Automotive     Automotive     Automotive    
-40 to 125     -40 to 125     -40 to 125     -40 to 125    
14HTSSOP     16HTSSOP     28HTSSOP    

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