TPS7B63-Q1 Series

Automotive 300-mA, off-battery (40-V), high-PSRR, low-IQ, low-dropout voltage regulator

Catalog

Automotive 300-mA, off-battery (40-V), high-PSRR, low-IQ, low-dropout voltage regulator

Part	Output Type	Qualification	PSRR [Min]	PSRR [Max]	Current - Quiescent (Iq)	Mounting Type	Operating Temperature [Max]	Operating Temperature [Min]	Number of Regulators	Voltage Dropout (Max) [Max]	Current - Output	Control Features	Grade	Protection Features	Package / Case	Package / Case	Output Configuration	Current - Supply (Max) [Max]	Voltage - Output (Min/Fixed)	Supplier Device Package
Texas Instruments TPS7B6333QPWPRQ1	1.81 mOhm	AEC-Q100	40 dB 100 Hz	60 dB 100 kHz	42 µA	Surface Mount	150 °C	-40 °C	1	0.4 V	300 mA	Enable	Automotive	Over Current	16-PowerTSSOP	0.173 in 4.4 mm Width	Positive	98 µA	3.3 V	16-HTSSOP
Texas Instruments TPS7B6350QPWPRQ1	1.81 mOhm	AEC-Q100	40 dB 100 Hz	60 dB 100 kHz	42 µA	Surface Mount	150 °C	-40 °C	1	0.4 V	300 mA	Enable	Automotive	Over Current	16-PowerTSSOP	0.173 in 4.4 mm Width	Positive	98 µA	5 V	16-HTSSOP

Catalog

Automotive 300-mA, off-battery (40-V), high-PSRR, low-IQ, low-dropout voltage regulator

Key Features

• AEC-Q100 qualified for automotive applications:Temperature grade 1: –40°C to 125°C, TAMaximum output current: 300 mA4-V to 40-V wide VINinput-voltage range with up to 45-V transientsFixed 3.3-V and 5-V outputsMaximum dropout voltage: 400 mV at 300 mAStable with output capacitor in wide range of capacitance (4.7 µF to 500 µF) and ESR (0.001 Ω to 20 Ω)Low quiescent current (I(Q)):< 4 µA when EN is low (shutdown mode)19 µA typical at light loads withWD_ENhigh (watchdog disabled)Configurable for window watchdog or standard watchdogOpen-to-closed window ratio configurable as 1:1 or 8:1Fully adjustable watchdog period (from 10 ms to 500 ms)10% accurate watchdog periodDedicatedWD_ENpin to control watchdog ON-OFFFully adjustable power-good threshold and power-good delay periodLow input-voltage tracking to UVLOIntegrated fault protectionOverload current-limit protectionThermal shutdownFunctional Safety-CapableDocumentation available to aid functional safety system design16-pin HTSSOP packageAEC-Q100 qualified for automotive applications:Temperature grade 1: –40°C to 125°C, TAMaximum output current: 300 mA4-V to 40-V wide VINinput-voltage range with up to 45-V transientsFixed 3.3-V and 5-V outputsMaximum dropout voltage: 400 mV at 300 mAStable with output capacitor in wide range of capacitance (4.7 µF to 500 µF) and ESR (0.001 Ω to 20 Ω)Low quiescent current (I(Q)):< 4 µA when EN is low (shutdown mode)19 µA typical at light loads withWD_ENhigh (watchdog disabled)Configurable for window watchdog or standard watchdogOpen-to-closed window ratio configurable as 1:1 or 8:1Fully adjustable watchdog period (from 10 ms to 500 ms)10% accurate watchdog periodDedicatedWD_ENpin to control watchdog ON-OFFFully adjustable power-good threshold and power-good delay periodLow input-voltage tracking to UVLOIntegrated fault protectionOverload current-limit protectionThermal shutdownFunctional Safety-CapableDocumentation available to aid functional safety system design16-pin HTSSOP package

Description

In automotive microcontroller or microprocessor power-supply applications, the watchdog is used to monitor the microcontroller working status to prevent software runaway. The watchdog must be independent of the microcontroller in a reliable system. The TPS7B63xx-Q1 is a family of 300-mA watchdog low-dropout regulators (LDOs) designed for an operating voltage up to 40 V, with typical quiescent current of only 19 µA at light load. The devices integrate a programmable function for selecting a window watchdog or standard watchdog, with an external resistor to set the watchdog time within 10% accuracy. The PG pin on the TPS7B63xx-Q1 devices indicate when the output voltage is stable and in regulation. The power-good delay period and power-good threshold can be adjusted by selecting external components. The devices also feature integrated short-circuit and overcurrent protection. The combination of such features makes these devices particularly flexible and suitable to supply microcontroller in automotive applications. In automotive microcontroller or microprocessor power-supply applications, the watchdog is used to monitor the microcontroller working status to prevent software runaway. The watchdog must be independent of the microcontroller in a reliable system. The TPS7B63xx-Q1 is a family of 300-mA watchdog low-dropout regulators (LDOs) designed for an operating voltage up to 40 V, with typical quiescent current of only 19 µA at light load. The devices integrate a programmable function for selecting a window watchdog or standard watchdog, with an external resistor to set the watchdog time within 10% accuracy. The PG pin on the TPS7B63xx-Q1 devices indicate when the output voltage is stable and in regulation. The power-good delay period and power-good threshold can be adjusted by selecting external components. The devices also feature integrated short-circuit and overcurrent protection. The combination of such features makes these devices particularly flexible and suitable to supply microcontroller in automotive applications.