Features
- Wide VIN range of 6V to 40V
- Adjustable output voltage from 2.5V to 12V
- Ensured 150mA output current
- Ultra low 18µA typical quiescent current
- Low 2µA of typical shutdown current
- ±1% accurate voltage reference (over temperature, load)
- Low dropout voltage of 295mV at 150mA
- Low 26µVRMS noise
- 40V tolerant logic level (TTL/CMOS) enable input
- Stable operation with 10µF output capacitor
- 5kV ESD HBM rated
- Thermal shutdown and current limit protection
- Thermally enhanced 14 Ld exposed pad HTSSOP package
Description
The ISL80138 is a high voltage, adjustable VOUT low quiescent current linear regulator ideally suited for “always-on” and “keep alive” applications. The ISL80138 operates from an input voltage of +6V to +40V under normal operating conditions and consumes only 18µA of quiescent current at no load. The ISL80138 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 ISL80138 is rated to operate across the -40°C to +125°C temperature range and is available in a 14 lead 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 | No |
| PSRR (db) | 66 |
| Quiescent Current | 18 µA |
| Qualification Level | Standard |
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
 | Wi-Fi-Connected Furnace Controller Wi-Fi-connected furnace controller with precise sensing, safety compliance, and remote monitoring for modern HVAC systems. |
Additional Applications
- Industrial
- Telecommunications
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40V, Low Quiescent Current, 50mA/150mA Linear Regulator Evaluation Board
The ISL80138EVAL1Z evaluation board is used to evaluate the performance of the ISL80138 high voltage linear regulator. The evaluation board is available with jumpers to set output voltage from 2.5V to 12V for easy evaluation by configuring a single resistor. The board can also be configured to... Read More
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