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)
Description
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.
Parameters
| Attributes | Value |
|---|---|
| Input Voltage (Min) (V) | 6 |
| Input Voltage (Max) (V) | 40 |
| Output Voltage (Min) (V) | 2.5 |
| Output Voltage (Max) (V) | 12 |
| Output Current 1 (Max) (A) | 0.15 |
| Drop Out Voltage (Typical) | 295 @ 150mA |
| Fixed Output Voltage Option | Yes |
| PSRR (db) | 66 |
| Quiescent Current | 18 µA |
| Qualification Level | Automotive |
Package Options
| Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) | Pitch (mm) |
|---|---|---|---|
| TSSOP-EP | 5.0 x 4.4 x 0.00 | 14 | 0.7 |
Application Block Diagrams
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Additional Applications
- Automotive
- Industrial
- Telecommunications