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TPS71H01

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500-mA, 10-V, adjustable low-dropout voltage regulator with power good & enable

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Data sheet

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TPS7A26 ACTIVE 500-mA, 18-V, ultra-low-IQ, high-accuracy, adjustable low-dropout voltage regulator with power good Alternative product offering ultra-low-IQ and improved accuracy in a 2x2 WSON package

TPS71H01

ACTIVE
Data sheet Order now

Product details

Output options Adjustable Output Iout (max) (A) 0.5 Vin (max) (V) 10 Vin (min) (V) 2.5 Vout (max) (V) 9.75 Vout (min) (V) 1.2 Noise (µVrms) 74 Iq (typ) (mA) 0.28 Thermal resistance θJA (°C/W) 179 Rating Catalog Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Features Enable, Power good Accuracy (%) 3 PSRR at 100 KHz (dB) 59 Dropout voltage (Vdo) (typ) (mV) 235 Operating temperature range (°C) -40 to 125
Output options Adjustable Output Iout (max) (A) 0.5 Vin (max) (V) 10 Vin (min) (V) 2.5 Vout (max) (V) 9.75 Vout (min) (V) 1.2 Noise (µVrms) 74 Iq (typ) (mA) 0.28 Thermal resistance θJA (°C/W) 179 Rating Catalog Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Features Enable, Power good Accuracy (%) 3 PSRR at 100 KHz (dB) 59 Dropout voltage (Vdo) (typ) (mV) 235 Operating temperature range (°C) -40 to 125
HTSSOP (PWP) 20 41.6 mm² 6.5 x 6.4
  • Available in 5-V, 4.85-V, and 3.3-V Fixed-Output and Adjustable Versions
  • Very Low-Dropout Voltage ...Maximum of 32 mV at IO = 100 mA (TPS71H50)
  • Very Low Quiescent Current – Independent of Load . . . 285 uA Typ
  • Extremely Low Sleep-State Current
       0.5 uA Max
  • 2% Tolerance Over Specified Conditions For Fixed-Output Versions
  • Output Current Range of 0 mA to 500 mA
  • TSSOP Package Option Offers Reduced Component Height for Space-Critical Applications
  • Thermally Enhanced Surface-Mount Package
  • Power-Good (PG) Status Output
  • Available in 5-V, 4.85-V, and 3.3-V Fixed-Output and Adjustable Versions
  • Very Low-Dropout Voltage ...Maximum of 32 mV at IO = 100 mA (TPS71H50)
  • Very Low Quiescent Current – Independent of Load . . . 285 uA Typ
  • Extremely Low Sleep-State Current
       0.5 uA Max
  • 2% Tolerance Over Specified Conditions For Fixed-Output Versions
  • Output Current Range of 0 mA to 500 mA
  • TSSOP Package Option Offers Reduced Component Height for Space-Critical Applications
  • Thermally Enhanced Surface-Mount Package
  • Power-Good (PG) Status Output

The TPS71Hxx integrated circuits are a family of micropower low-dropout (LDO) voltage regulators. An order of magnitude reduction in dropout voltage and quiescent current over conventional LDO performance is achieved by replacing the typical pnp pass transistor with a PMOS device.

Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (maximum of 32 mV at an output current of 100 mA for the TPS71H50) and is directly proportional to the output current (see Figure 1). Additionally, since the PMOS pass element is a voltage-driven device, the quiescent current is very low and remains independent of output loading (typically 285 uA over the full range of output current, 0 mA to 500 mA). These two key specifications yield a significant improvement in operating life for battery-powered systems. The LDO family also features a sleep mode; applying a TTL high signal to EN\ (enable)\ shuts down the regulator, reducing the quiescent current to 0.5 uA maximum at TJ = 25°C.

Power good (PG) reports low output voltage and can be used to implement a power-on reset or a low-battery indicator.

The TPS71Hxx is offered in 3.3-V, 4.85-V, and 5-V fixed-voltage versions and in an adjustable version (programmable over the range of 1.2 V to 9.75 V). Output voltage tolerance is specified as a maximum of 2% over line, load, and temperature ranges (3% for adjustable version). The TPS71Hxx family is available in a TSSOP (20-pin) thermally enhanced surface-mount power package. The package has an innovative thermal pad that, when soldered to the printed-wiring board (PWB), enables the device to dissipate several watts of power (see Thermal Information section). Maximum height of the package is 1.2 mm.

The TPS71Hxx integrated circuits are a family of micropower low-dropout (LDO) voltage regulators. An order of magnitude reduction in dropout voltage and quiescent current over conventional LDO performance is achieved by replacing the typical pnp pass transistor with a PMOS device.

Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (maximum of 32 mV at an output current of 100 mA for the TPS71H50) and is directly proportional to the output current (see Figure 1). Additionally, since the PMOS pass element is a voltage-driven device, the quiescent current is very low and remains independent of output loading (typically 285 uA over the full range of output current, 0 mA to 500 mA). These two key specifications yield a significant improvement in operating life for battery-powered systems. The LDO family also features a sleep mode; applying a TTL high signal to EN\ (enable)\ shuts down the regulator, reducing the quiescent current to 0.5 uA maximum at TJ = 25°C.

Power good (PG) reports low output voltage and can be used to implement a power-on reset or a low-battery indicator.

The TPS71Hxx is offered in 3.3-V, 4.85-V, and 5-V fixed-voltage versions and in an adjustable version (programmable over the range of 1.2 V to 9.75 V). Output voltage tolerance is specified as a maximum of 2% over line, load, and temperature ranges (3% for adjustable version). The TPS71Hxx family is available in a TSSOP (20-pin) thermally enhanced surface-mount power package. The package has an innovative thermal pad that, when soldered to the printed-wiring board (PWB), enables the device to dissipate several watts of power (see Thermal Information section). Maximum height of the package is 1.2 mm.
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Type Title Date
* Data sheet Low-Dropout Voltage Regulators datasheet (Rev. B) 30 Jul 2002
Application note LDO Noise Demystified (Rev. B) PDF | HTML 18 Aug 2020
Application note Fundamental Theory of PMOS LDO Voltage Regulators (Rev. A) 17 Aug 2018
Application note PowerPAD™ Thermally Enhanced Package (Rev. H) 06 Jul 2018
Application note LDO PSRR Measurement Simplified (Rev. A) PDF | HTML 09 Aug 2017
Application note Technical Review of Low Dropout Voltage Regulator Operation And Performance 30 Aug 1999

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