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TPS798-Q1

ACTIVE

Automotive 50-mA, off-battery (50-V), low-dropout voltage regulator with reverse current protection

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Data sheet

TPS798-Q1

ACTIVE
Data sheet Order now

Product details

Output options Adjustable Output, Fixed Output Iout (max) (A) 0.05 Vin (max) (V) 50 Vin (min) (V) 3 Vout (max) (V) 28 Vout (min) (V) 1.275 Fixed output options (V) 5 Noise (µVrms) 100 Iq (typ) (mA) 0.04 Thermal resistance θJA (°C/W) 57 Rating Automotive Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable, Reverse Current Protection, Reverse voltage protection, Short-to-battery protection Accuracy (%) 3 PSRR at 100 KHz (dB) 36 Dropout voltage (Vdo) (typ) (mV) 300 Operating temperature range (°C) -40 to 125
Output options Adjustable Output, Fixed Output Iout (max) (A) 0.05 Vin (max) (V) 50 Vin (min) (V) 3 Vout (max) (V) 28 Vout (min) (V) 1.275 Fixed output options (V) 5 Noise (µVrms) 100 Iq (typ) (mA) 0.04 Thermal resistance θJA (°C/W) 57 Rating Automotive Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable, Reverse Current Protection, Reverse voltage protection, Short-to-battery protection Accuracy (%) 3 PSRR at 100 KHz (dB) 36 Dropout voltage (Vdo) (typ) (mV) 300 Operating temperature range (°C) -40 to 125
HVSSOP (DGN) 8 14.7 mm² 3 x 4.9
  • Qualified for Automotive Applications
  • Wide Input Voltage Range: 3 V to 50 V
  • Low Quiescent Current: 40 µA (Typical)
  • Low Dropout Voltage: 300 mV (Typical)
  • Output Current: 50 mA
  • No Input Protection Diodes Needed
  • Adjustable Output From 1.275 V to 28 V
  • 1-µA Quiescent Current in Shutdown
  • Stable With 1-µF Output Capacitor
  • Stable With Aluminum, Tantalum, or Ceramic
    Capacitors
  • Reverse Input-Battery Protection
  • Reverse Output Current Flow Protection
  • Thermal Limiting
  • Available in an 8-Pin MSOP-PowerPAD IC
    Package
  • Qualified for Automotive Applications
  • Wide Input Voltage Range: 3 V to 50 V
  • Low Quiescent Current: 40 µA (Typical)
  • Low Dropout Voltage: 300 mV (Typical)
  • Output Current: 50 mA
  • No Input Protection Diodes Needed
  • Adjustable Output From 1.275 V to 28 V
  • 1-µA Quiescent Current in Shutdown
  • Stable With 1-µF Output Capacitor
  • Stable With Aluminum, Tantalum, or Ceramic
    Capacitors
  • Reverse Input-Battery Protection
  • Reverse Output Current Flow Protection
  • Thermal Limiting
  • Available in an 8-Pin MSOP-PowerPAD IC
    Package

The TPS798xx-Q1 is the first device in a line of 50-V high-voltage micropower low-dropout (LDO) linear regulators. This device is capable of supplying 50-mA output current with a dropout voltage of only 300 mV. Designed for low quiescent current high voltage (50 V) applications, 40 µA operating and 1 µA in shutdown makes the TPS798xx-Q1 an ideal choice for battery-powered or high-voltage systems. Quiescent current is also well-controlled in dropout.

Other features of the TPS798xx-Q1 include the ability to operate with low equivalent series resistance (ESR) ceramic output capacitors. This device is stable with only 1 µF on the output; most older devices require from 10-µF to 100-µF tantalum capacitors for stability. Small ceramic capacitors can be used without the necessary addition of ESR, as is common with other regulators. Internal protection circuitry includes reverse input-battery protection, reverse output current protection, current limiting, and thermal limiting to protect the device in various fault conditions.

This device is available in a fixed output voltage of 5 V (TPS79850) and with an adjustable output voltage with a 1.275-V reference voltage (TPS79801). The TPS798xx-Q1 regulator is available in a 8-pin MSOP-PowerPAD (DGN) package with an exposed pad for enhanced thermal management capability.

The TPS798xx-Q1 is the first device in a line of 50-V high-voltage micropower low-dropout (LDO) linear regulators. This device is capable of supplying 50-mA output current with a dropout voltage of only 300 mV. Designed for low quiescent current high voltage (50 V) applications, 40 µA operating and 1 µA in shutdown makes the TPS798xx-Q1 an ideal choice for battery-powered or high-voltage systems. Quiescent current is also well-controlled in dropout.

Other features of the TPS798xx-Q1 include the ability to operate with low equivalent series resistance (ESR) ceramic output capacitors. This device is stable with only 1 µF on the output; most older devices require from 10-µF to 100-µF tantalum capacitors for stability. Small ceramic capacitors can be used without the necessary addition of ESR, as is common with other regulators. Internal protection circuitry includes reverse input-battery protection, reverse output current protection, current limiting, and thermal limiting to protect the device in various fault conditions.

This device is available in a fixed output voltage of 5 V (TPS79850) and with an adjustable output voltage with a 1.275-V reference voltage (TPS79801). The TPS798xx-Q1 regulator is available in a 8-pin MSOP-PowerPAD (DGN) package with an exposed pad for enhanced thermal management capability.
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* Data sheet TPS798xx-Q1 50 mA, 3 V to 50 V, Micropower, Low-Dropout Linear Regulator datasheet (Rev. E) PDF | HTML 30 Sep 2015

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