40-V, 450-mA, Low IQ, Low-Dropout Voltage Regulator with Power Good - TPS7A19

TPS7A19 (ACTIVE)

40-V, 450-mA, Low IQ, Low-Dropout Voltage Regulator with Power Good

 

Description

The TPS7A19 is a low-dropout linear regulator (LDO) with a wide input voltage (VIN) range up to 40 V, capable of sourcing high output current (IOUT) up to 450 mA. This voltage regulator is ideal for generating a low-voltage supply from wide input-voltage rails. Not only does the TPS7A19 supply a well-regulated voltage rail, but the device also withstands and maintains regulation during voltage transients by acting as a simple surge protection circuit.

The TPS7A19 consumes only 15 µA of quiescent current (IQ) at light loads, thereby lowering the power consumption for always-on or battery-powered applications.

The TPS7A19 features integrated thermal shutdown and overcurrent protection. The TPS7A19 also offers a power good output (PG) with a programmable delay that indicates when the output voltage is in regulation. This feature is useful for power-rail sequencing functions.

This LDO is available in a small, 3-mm × 3-mm, thermally-enhanced, 8-pin SON package.

Features

  • Wide Input Voltage Range: 4 V to 40 V
  • Adjustable Output Voltage: 1.5 V to 18 V
  • Output Current: 450 mA
  • Low Quiescent Current (IQ): 15 µA
  • Low Dropout Voltage: 450 mV (max) at 400 mA
  • Power Good with Programmable Delay
  • Thermal Shutdown and Overcurrent Protection
  • Stable with Ceramic Output Capacitors:
    • 10 µF to 500 µF for VOUT ≥ 2.5 V
    • 22 µF to 500 µF for VOUT < 2.5 V
  • Operating Temperature: –40°C to +125°C
  • Package: 3-mm × 3-mm SON-8

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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 (%)
Noise (uVrms)
PSRR @ 100KHz (dB)
Output Capacitor Type
Rating
Operating Temperature Range (C)
Pin/Package
TPS7A19 TPS7A16 TPS7A4001 TPS7A4101 TPS7A4201
0.45    0.1    0.05    0.05    0.05   
Adjustable Output    Adjustable Output
Fixed Output   
Adjustable Output    Adjustable Output    Adjustable Output   
4    3    7    7    7   
40    60    100    50    28   
  3.3
5   
     
1.5    1.2    1.2    1.2    1.2   
18    18.5    90    48    26   
0.015    0.005    0.02    0.02    0.02   
240    60    290    290    290   
2    2    2.5    2.5    2.5   
  215    58    58    58   
45    26    38    38    38   
Ceramic    Ceramic    Ceramic    Ceramic    Ceramic   
Catalog    Catalog    Catalog    Catalog    Catalog   
-40 to 125    -40 to 125    -40 to 125    -40 to 125    -40 to 125   
8SON    8MSOP-PowerPAD
8SON   
8MSOP-PowerPAD    8MSOP-PowerPAD    8MSOP-PowerPAD   
New! Interactive Design
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WEBENCH® Designer TPS7A19

  Min   Max Range
Vin  V 4.0 to 40.0V
Vout  V 1.5 to 18V
Iout  A ≤ 0.45A
Ambient Temp  °C -40 to 125°C


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