LDL40PU33RY

LDL40PU33RY is a high accuracy voltage regulator designed to be directly connected to a car battery in automotive applications or a generic battery used in industrial applications. Extended input voltage up to 40V makes the device able to support a load dump transient, which is typical in automotive systems. Ultra-low quiescent current at light load increases the battery operation lifetime in always-on-standby systems. The device is stabilized with a small ceramic capacitor on the input and output. An enable logic control function puts the LDL40 in shutdown mode allowing a total current consumption lower than 0.3µA. Thermal protection is also included. The device is available in automotive grade in a very small footprint DFN package with wettable flanks, allowing maximum space saving in the PCB (printed circuit board) design and AOI (automated optical inspection). Applications include EV powertrain, always-on battery connected application, infotainment and instrument cluster and ADAS.

• AEC-Q100 grade 1 qualified
• Operating temperature range from -40°C to 150°C
• Input voltage from 3.3V to 40V
• Dropout voltage (700mV typical at 200mA load)
• Low ground current (2μA typ at no load)
• Output voltage of 3.3V
• Output voltage tolerance: ±2.5% overtemperature, 0.5% at 25°C
• 200mA guaranteed output current
• Logic-controlled electronic shutdown, internal current limit, thermal shutdown
• Output active discharge function