TPS798-Q1 Series

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

Catalog

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

Part	Mounting Type	Grade	Package / Case	Package / Case [custom]	Protection Features	Control Features	PSRR	Voltage - Output (Min/Fixed)	Number of Regulators	Current - Output	Qualification	Voltage Dropout (Max) [Max]	Output Type	Current - Supply (Max) [Max]	Current - Quiescent (Iq)	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Output (Max)	Output Configuration	Supplier Device Package	Voltage - Input (Max) [Max]
Texas Instruments TPS79801QDGNRQ1	Surface Mount	Automotive	8-MSOP 8-TSSOP Exposed Pad	0.118 in 3 mm	Over Current Over Temperature Reverse Polarity	Enable	65 dB	1.275 V	1	50 mA	AEC-Q100	0.55 V	Adjustable	3.3 mA	80 µA	125 °C	-40 °C	28 V	Positive	8-HVSSOP	50 V

Catalog

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

Key Features

• AEC-Q100 qualified for automotive applications:Temperature grade 1: −40°C to +125°C, TAWide input voltage range: 3V to 50VLow quiescent current: 40µA (typical)Low dropout voltage: 300mV (typical)Output current: 50mANo input protection diodes neededAdjustable output: From 1.275V to 28VQuiescent current in shutdown: 1µAStable with 1µF output capacitorStable with aluminum, tantalum, or ceramic capacitorsReverse input-battery protectionReverse output current flow protectionThermal limitingAvailable in an 8-pin HVSSOP PowerPAD device packageAEC-Q100 qualified for automotive applications:Temperature grade 1: −40°C to +125°C, TAWide input voltage range: 3V to 50VLow quiescent current: 40µA (typical)Low dropout voltage: 300mV (typical)Output current: 50mANo input protection diodes neededAdjustable output: From 1.275V to 28VQuiescent current in shutdown: 1µAStable with 1µF output capacitorStable with aluminum, tantalum, or ceramic capacitorsReverse input-battery protectionReverse output current flow protectionThermal limitingAvailable in an 8-pin HVSSOP PowerPAD device package

Description

The TPS798-Q1 is the first device in a line of 50V high-voltage micropower low-dropout (LDO) linear regulators. This device is capable of supplying 50mA output current with a dropout voltage of only 300mV. Created for low quiescent current, high-voltage (50V) applications, the 40µA operating and 1µA quiescent current in shutdown makes the TPS798-Q1 designed for battery-powered or high-voltage systems. Quiescent current is also well-controlled in dropout. Other features of the TPS798-Q1 include the ability to operate with low equivalent series resistance (ESR) ceramic output capacitors. This device is stable with only 1µF on the output; most older devices require from 10µF to 100µF 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 5V (TPS79850) and with an adjustable output voltage with a 1.275V reference voltage (TPS79801). The TPS798-Q1 regulator is available in a 8-pin HVSSOP PowerPAD (DGN) package with an exposed pad for enhanced thermal management capability. The TPS798-Q1 is the first device in a line of 50V high-voltage micropower low-dropout (LDO) linear regulators. This device is capable of supplying 50mA output current with a dropout voltage of only 300mV. Created for low quiescent current, high-voltage (50V) applications, the 40µA operating and 1µA quiescent current in shutdown makes the TPS798-Q1 designed for battery-powered or high-voltage systems. Quiescent current is also well-controlled in dropout. Other features of the TPS798-Q1 include the ability to operate with low equivalent series resistance (ESR) ceramic output capacitors. This device is stable with only 1µF on the output; most older devices require from 10µF to 100µF 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 5V (TPS79850) and with an adjustable output voltage with a 1.275V reference voltage (TPS79801). The TPS798-Q1 regulator is available in a 8-pin HVSSOP PowerPAD (DGN) package with an exposed pad for enhanced thermal management capability.