Packaging information
| Package | Pins WSON (DRV) | 6 |
| Operating temperature range (°C) -40 to 150 |
| Package qty | Carrier 3,000 | LARGE T&R |
Features for the TPS7B81-Q1
- AEC-Q100 qualified for automotive
applications:
- Temperature grade 1: –40°C to +125°C, TA
- Temperature grade 1: –40°C to +150°C, TJ
- 3V to 40V wide VIN input voltage range with up to 45V transient
- Maximum output current: 150mA
- Low quiescent current IQ:
- 300nA typical when EN = low (shutdown mode)
- 2.7µA typical at light loads
- 4.5µA maximum at light loads
- 1.5% output-voltage accuracy over line, load and temperature
- Maximum dropout voltage: 540mV at 150mA load current for fixed 5V output version
- Stable with low-ESR (0.001Ω to 5Ω) ceramic output-stability capacitor (1µF to 200µF)
- Fixed output voltage: 5V, 3.3V, and 2.5V
- Integrated fault protection:
- Thermal shutdown
- Short-circuit and overcurrent protection
- Functional Safety-Capable
- Packages:
- DGN (8-pin HVSSOP), RθJA = 63.9°C/W
- DRV (6-pin WSON), RθJA = 72.8°C/W
- DRV (6-pin WSON wettable flank), RθJA = 72.8°C/W
- KVU (5-pin TO-252), RθJA = 38.8°C/W
Description for the TPS7B81-Q1
In automotive battery-connected applications, low quiescent current (IQ) is important to conserve energy and to extend battery lifetime. Always-on systems must have ultra-low IQ over an extended temperature range to enable sustained operation when the vehicle ignition is off.
The TPS7B81-Q1 is a low-dropout (LDO) linear regulator designed for up to 40V VIN applications. With only a 2.7µA typical quiescent current at light load, the device is an optimum design for powering microcontrollers and controller area network and local interconnect network (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 is available in several packages of varying size and thermal conductivity. The compact WSON package comes in a wettable flank option. The TO-252 package enables sustained operation despite significant dissipation across the device. These features make the device well suited as a power supply for various battery-connected automotive applications.