ISL78301

40V, Low Quiescent Current, 150mA Linear Regulator for Automotive Applications

Product Status: Mass Production

OVERVIEW

The ISL78301 is a high voltage, low quiescent current linear regulator ideally suited for “always-on” and “keep alive” automotive applications. The ISL78301 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 ISL78301 is available in a 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 2µA of supply current. The device features over-temperature shutdown and current limit protection.

The ISL78301 is AEC-Q100 qualified. It is rated over the -40°C to +125°C automotive temperature range and is available in a 14 Ld HTSSOP with an exposed pad package.

KEY FEATURES

  • Optimized for “always-on” automotive applications
  • 18µA typical quiescent current
  • Guaranteed 150mA output current
  • Operates through cold crank down to 3V
  • 40V tolerant logic level (TTL/CMOS) enable input
  • 2µA of typical shutdown current
  • Low dropout voltage of 295mV at 150mA
  • 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 14 Ld exposed pad HTSSOP package
  • AEC-Q100 Qualified
  • 5kV ESD HBM Rated
  • Pb-Free (RoHS Compliant)

BLOCK DIAGRAM

 Block Diagram

PARAMETRICS

Parameters
ISL78301
Basic Information
Production Status
Mass Production
Input Voltage Min (V)
6
Input Voltage Max (V)
40
External Bias
No
Output Voltage Min (V)
2.5
Output Voltage Max (V)
12
Fixed Output Voltage Option
Yes
O/P Voltage Accuracy (%)
±1.8
Output Current 1 Max (A)
0.15
PSRR (dB)
66
Qualification Level
Automotive
IQ
18 µA
Drop Out Voltage Typ (mV)
295 @ 150mA
Enable/Shutdown
Yes
PGOOD Output
No
Input Voltage Range (V)
6 to 40
Output Voltage Range (V)
2.5 to 12
Can Sample
YES
Temperature Range
-40 to +125

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