ISL8022 Description
The channels are 180° out-ofphase for input RMS current and EMI reduction. The supply voltage range of 2.8V to 5.5V allows for the use of a single Li+ cell, three NiMH cells or a regulated 5V input. The current mode control architecture enables very low duty cycle operation at high frequency with fast transient response and excellent loop stability.
ISL8022 Key Features
- Dual 2A/1.7A high efficiency synchronous buck regulator with up to 97% efficiency, low iq (40µA)
- 180° out-of-phase
- Start-up with pre-biased output
- Selectable forced PWM mode and PFM mode
- External synchronization up to 8MHz
- Negative current detection and protection
- 100% maximum duty cycle for lowest dropout
- Internal current mode pensation
- Peak current limiting, hiccup mode short circuit protection
- Pb-free (RoHs pliant)