TPS7B82-Q1 Texas instruments

TPS7B82-Q1

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TPS7B82-Q1

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Описание

In automotive battery-connected applications, low quiescent current (IQ) is important to save power and extend battery lifetime. Ultra-low IQ must be included for always-on systems.The TPS7B82-Q1 is a low-dropout linear regulator designed to operate with a wide input-voltage range from 3 V to 40 V (45-V load dump protection). Operation down to 3 V allows the TPS7B82-Q1 to continue operating during cold-crank and start and stop conditions. With only 2.7-µA typical quiescent current at light load, this device is an optimal solution for powering microcontrollers (MCUs) and CAN/LIN transceivers in standby systems.The device features integrated short-circuit and overcurrent protection. This device operates in ambient temperatures from –40°C to +125°C and with junction temperatures from –40°C to +150°C. Additionally, this device uses a thermally conductive package to enable sustained operation despite significant dissipation across the device. Because of these features, the device is designed as a power supply for various automotive applications.

AEC-Q100 qualified for automotive applications:
- Temperature grade 1: –40°C ≤ T_A ≤ 125°C
- Temperature grade 0: –40°C ≤ T_A ≤ 150°C
Extended junction temperature range:
- Grade 1: –40°C ≤ T_J ≤ 150°C
- Grade 0: –40°C ≤ T_J ≤ 165°C
Low quiescent current I_Q:
- 300-nA shutdown I_Q
- 2.7 µA typical at light loads
- 5 µA maximum at light loads
3-V to 40-V wide V_IN input voltage range with up to 45-V transient
Maximum output current: 300 mA
2% output-voltage accuracy
Maximum dropout voltage: 700 mV at 200-mA load current for fixed 5-V output version
Stable with low-ESR (0.001-Ω to 5-Ω) ceramic output-stability capacitor (1 µF to 200 µF)
Fixed 2.5-V, 3.3-V, and 5-V output voltage
Packages:
- 8-pin HVSSOP, R_θJA = 63.9°C/W
- 6-pin WSON, R_θJA = 72.8°C/W
- 5-pin TO-252, R_θJA = 31.1°C/W
- 14-pin HTSSOP, R_θJA = 52.0°C/W

Output options	Fixed Output
Iout (max) (A)	0.3
Vin (max) (V)	40
Vin (min) (V)	3
Vout (max) (V)	5
Vout (min) (V)	3.3
Fixed output options (V)	3.3, 5
Noise (µVrms)	450
Iq (typ) (mA)	0.003
Thermal resistance θJA (°C/W)	59
TI functional safety category	Functional Safety-Capable
Rating	Automotive
Load capacitance (min) (µF)	1
Regulated outputs (#)	1
Features	Enable
Accuracy (%)	2
PSRR at 100 KHz (dB)	25
Dropout voltage (Vdo) (typ) (mV)	400
Operating temperature range (°C)	-40 to 150