The ISL78307 is a high voltage, low quiescent current linear regulator ideally suited for “always-on” and “keep alive” automotive applications. The ISL78307 operates from an input voltage of +6V to +40V under normal operating conditions and operates down to +3V under a cold crank. It consumes only 18µA of quiescent current at no load on the adjustable version. The ISL78307 is available in fixed 3. 3V, 5V, and adjustable output voltage (2. 5V to 12V) options. It features an EN pin that can be used to put the device into a low-quiescent current shutdown mode where it draws only 1. 8µA of supply current. The device features over-temperature shutdown and current limit protection. The ISL78307 is AEC-Q100 qualified. It is rated across the -40°C to +125°C automotive temperature range and is available in an 8 Ld EPSOIC with exposed pad package.


  • Optimized for “always-on” automotive applications
  • 18µA typical quiescent current
  • Ensured 50mA output current
  • Operates through cold crank down to 3V
  • 40V tolerant logic level (TTL/CMOS) enable input
  • 1.8µA of typical shutdown current
  • Low dropout voltage of 120mV at 50mA
  • Fixed +3.3V, +5.0V and adjustable output voltage options
  • Stable operation with 10µF output capacitor
  • Thermal shutdown and current limit protection
  • -40°C to +125°C operating temperature range
  • Thermally enhanced 8 Ld exposed pad SOIC package
  • AEC-Q100 qualified
  • 6kV ESD HBM rated
  • Pb-free (RoHS compliant)


  • Automotive
  • Industrial
  • Telecom


Title language Type Format File Size Date
star ISL78307 Datasheet Datasheet PDF 645 KB
AN1681: Grounding Techniques Application Note PDF 509 KB
AN1684: Nonideality of Ground Application Note PDF 397 KB
PA19027 - Package Outline Correction for 8L / SOIC-EP Product Advisory PDF 314 KB
PCN13014 - Test Site Change for the Listed Intersil Products - STATS ChipPAC (SCM) - Kuala Lumpur, Malaysia Product Change Notice PDF 80 KB