The ISL97519 is a high frequency, high efficiency step-up voltage regulator operated at constant frequency PWM mode. With an internal 2.0A, 200mΩ MOSFET, it can deliver up to 1A output current at over 90% efficiency. The selectable 600kHz and 1.2MHz allows smaller inductors and faster transient response. An external compensation pin gives the user greater flexibility in setting frequency compensation allowing the use of low ESR ceramic output capacitors. When shut down, it draws <1µA of current and can operate down to 2.3V input supply. These features along with 1.2MHz switching frequency makes it an ideal device for portable equipment and TFT-LCD displays. The ISL97519 is available in an 8 Ld MSOP package with a maximum height of 1.1mm. The device is specified for operation over the full -40°C to +105°C temperature range.
The ISL97519 is a high‑frequency, high‑efficiency boost regulator operated in constant‑frequency PWM mode. It integrates a 2.0 A, 200 mΩ MOSFET and delivers up to 1 A output current with over 90 % efficiency. selectable 600 kHz or 1.2 MHz switching allows smaller inductors and fast transient response, while an external compensation pin provides flexibility for load regulation.
The device is offered in an 8‑lead MSOP package (max height 1.1 mm) and is rated for operation from –40 °C to +105 °C. It features a shutdown current of less than 1 pA, soft‑start control, internal thermal protection, and is RoHS‑compliant.
| Output Accuracy | 1 % |
|---|---|
| Efficiency | 290 % |
| Internal MOSFET Current Rating | 2.0 A |
| Input Voltage Range | 2.3 V – 5.5 V |
| Maximum Output Voltage | 25 V |
| Switching Frequency Options | 600 kHz / 1.2 MHz |
| Shutdown Quiescent Current | < 1 pA |
| Package Type | 8‑lead MSOP, max height 1.1 mm |
| Operating Temperature Range | –40 °C to +105 °C |
The device draws less than 1 pA of current when shut down.
It operates with an input voltage from 2.3 V to 5.5 V.
Connecting the FSEL pin to ground selects 620 kHz, while tying it high or to VDD selects 1.25 MHz.
It is supplied in an 8‑lead MSOP package with a maximum height of 1.1 mm.