TPS7B63-Q1

Name: TPS7B63-Q1
Brand: TI
SKU: TPS7B63-Q1
Price: 0.688 USD

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Regulador de tensión de caída baja de 300 mA, sin batería (40 V), PSRR alto e IQ baja para automoció

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document-pdfAcrobat TPS7B63-Q1 Automotive, 300mA, 40V High-Voltage, Ultra-Low-Quiescent-Current Watchdog LDO datasheet (Rev. D) (Inglés) PDF | HTML

TPS7B63-Q1

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Detalles del producto

Rating

Automotive

Vin (max) (V)

40

Vin (min) (V)

4

Iout (max) (A)

0.3

Output options

Fixed Output

Vout (max) (V)

5

Vout (min) (V)

3.3

Fixed output options (V)

3.3, 5

PSRR at 100 KHz (dB)

55

Iq (typ) (mA)

0.019

Features

Enable, Power good, Watchdog timer

Thermal resistance θJA (°C/W)

40

TI functional safety category

Functional Safety-Capable

Load capacitance (min) (µF)

4.7

Regulated outputs (#)

1

Accuracy (%)

2

Dropout voltage (Vdo) (typ) (mV)

300

Operating temperature range (°C)

-40 to 125

Rating

Automotive

Vin (max) (V)

40

Vin (min) (V)

4

Iout (max) (A)

0.3

Output options

Fixed Output

Vout (max) (V)

5

Vout (min) (V)

3.3

Fixed output options (V)

3.3, 5

PSRR at 100 KHz (dB)

55

Iq (typ) (mA)

0.019

Features

Enable, Power good, Watchdog timer

Thermal resistance θJA (°C/W)

40

TI functional safety category

Functional Safety-Capable

Load capacitance (min) (µF)

4.7

Regulated outputs (#)

1

Accuracy (%)

2

Dropout voltage (Vdo) (typ) (mV)

300

Operating temperature range (°C)

-40 to 125

HTSSOP (PWP)

16

32 mm² 5 x 6.4

AEC-Q100 qualified for automotive applications:
- Temperature grade 1: –40°C to 125°C, TA
Maximum output current: 300mA
4V to 40V wide VIN input-voltage range with up to 45V transients
Fixed 3.3V and 5V outputs
Maximum dropout voltage: 400mV at 300mA
Stable with output capacitor in wide range of capacitance (4.7µF to 500µF) and ESR (0.001Ω to 20Ω)
Low quiescent current (I(Q)):
- < 4µA when EN is low (shutdown mode)
- 19µA typical at light loads with WD_EN high (watchdog disabled)
Configurable for window watchdog or standard watchdog
Open-to-closed window ratio configurable as 1:1 or 8:1
Fully adjustable watchdog period (from 10ms to 500ms)
10% accurate watchdog period
Dedicated WD_EN pin to control watchdog ON-OFF
Fully adjustable power-good threshold and power-good delay period
Low input-voltage tracking to UVLO
Integrated fault protection
- Overload current-limit protection
- Thermal shutdown
Functional Safety-Capable
- Documentation available to aid functional safety system design
16-pin HTSSOP package

AEC-Q100 qualified for automotive applications:
- Temperature grade 1: –40°C to 125°C, TA
Maximum output current: 300mA
4V to 40V wide VIN input-voltage range with up to 45V transients
Fixed 3.3V and 5V outputs
Maximum dropout voltage: 400mV at 300mA
Stable with output capacitor in wide range of capacitance (4.7µF to 500µF) and ESR (0.001Ω to 20Ω)
Low quiescent current (I(Q)):
- < 4µA when EN is low (shutdown mode)
- 19µA typical at light loads with WD_EN high (watchdog disabled)
Configurable for window watchdog or standard watchdog
Open-to-closed window ratio configurable as 1:1 or 8:1
Fully adjustable watchdog period (from 10ms to 500ms)
10% accurate watchdog period
Dedicated WD_EN pin to control watchdog ON-OFF
Fully adjustable power-good threshold and power-good delay period
Low input-voltage tracking to UVLO
Integrated fault protection
- Overload current-limit protection
- Thermal shutdown
Functional Safety-Capable
- Documentation available to aid functional safety system design
16-pin HTSSOP package

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 TPS7B63-Q1 is a 300mA watchdog low-dropout regulator (LDO) designed for an operating voltage up to 40V, with typical quiescent current of only 19µA at light load. The device integrates 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 TPS7B63-Q1 indicates 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 device also features integrated short-circuit and overcurrent protection. The combination of such features makes this device particularly flexible and designed to supply a 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 TPS7B63-Q1 is a 300mA watchdog low-dropout regulator (LDO) designed for an operating voltage up to 40V, with typical quiescent current of only 19µA at light load. The device integrates 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 TPS7B63-Q1 indicates 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 device also features integrated short-circuit and overcurrent protection. The combination of such features makes this device particularly flexible and designed to supply a microcontroller in automotive applications.

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Documentación técnica

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Ver todo 7

	Tipo	Título		Fecha
*	Data sheet	TPS7B63-Q1 Automotive, 300mA, 40V High-Voltage, Ultra-Low-Quiescent-Current Watchdog LDO datasheet (Rev. D)	PDF \| HTML	06 jun 2025
	Application note	An empirical analysis of the impact of board layout on LDO thermal performance (Rev. A)	PDF \| HTML	23 sep 2025
	Functional safety information	TPS7B63-Q1 Functional Safety FIT Rate, FMD and Pin FMA (Rev. A)		10 jun 2020
	Application note	A Topical Index of TI LDO Application Notes (Rev. F)		27 jun 2019
	E-book	LDO Basics (Rev. A)		08 abr 2019
	Technical article	Discrete SBCs: versatile and scalable solutions for any application	PDF \| HTML	27 jul 2017
	Technical article	LDO basics: dropout	PDF \| HTML	16 mar 2017

Diseño y desarrollo

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Placa de evaluación

TPS7B6350EVM — Módulo de evaluación de regulador LDO con vigilancia de 300 mA TPS7B6350-Q1

El módulo de evaluación (EVM) TPS7B6350EVM le ayuda a evaluar el funcionamiento y el rendimiento del regulador de vigilancia de caída baja (LDO) TPS7B6350-Q1. El TPS7B6350-Q1 es un regulador LDO de vigilancia integrado monolítico de 40 V y 300 mA en un encapsulado HTSSOP de 16 pines. El dispositivo (...)

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