TPS7B8350QDCYRQ1

The TPS7B83-Q1 is a low-dropout linear regulator designed to connect directly to the battery in automotive applications. With an input voltage range up to 40V, the device can withstand transients that may occur in automotive systems, such as load dump. Its quiescent current of only 18μA makes it an excellent solution for powering always-on devices such as MCUs and CAN transceivers in standby systems. The device features advanced transient response, enabling the output to respond quickly to load or line changes (e.g., under cold-crank conditions). In addition, the novel device architecture minimizes output overshoot during recovery from voltage droops. During normal operation, the device maintains ±1% DC accuracy across the full line, load, and temperature range.

Applications

• Reconfigurable instrument cluster
• Body Control Module (BCM)
• Always-on battery-connected applications:
• Automotive gateway
• Remote Keyless Entry (RKE)

Key features

• AEC-Q100 qualified for automotive applications:
• Temperature Grade 1: -40°C to +125°C, TA
• Junction Temperature: -40°C to +150°C, TJ
• Input voltage range: 3V to 40V (42V maximum)
• Output voltage range: 3.3V and 5V (fixed)
• Output current: up to 150mA
• Output voltage accuracy: ±1% (maximum)
• Low dropout:
• 230mV (maximum) at 150mA (VOUT≥3.3V)
• Low quiescent current:
• 18μA (typical)
• Excellent line transient response:
• ±2% deviation during cold start
• ±2% deviation (VIN slew rate 1V/μs)
• Stable with 2.2μF or higher capacitors
• Functional Safety support:
• Documentation to assist functional safety system design
• Package: 3-pin SOT-223