ISL9120IR Buck-Boost Regulator

Product Highlights > ISL9120IR Buck-Boost Regulator

            ISL9120IR Buck-Boost Regulator
                    Renesas  offers their ISL9120IR compact, high-efficiency, low-power buck-boost regulator
    

Image of Renesas ISL9120IR Buck-Boost Regulator Renesas' ISL9120IR is an ultra-small, low-cost, very high-efficiency (up to 98%) buck-boost switching regulator with adaptive PFM architecture for low power consumer applications. The ISL9120 has automatic and forced bypass functionality for efficiency enhancement during standby mode. The product is designed to function as the power supply to system or to power system peripheral devices in portable battery powered consumer products. With the large input voltage range of 1.8 V to 5.5 V, it is optimized for any Li-ion or Li-polymer battery applications, but its low voltage input capability makes it ideal for other battery operated systems. This is a high-efficiency, low-cost, buck-boost product for portable and wearable products.

Features and Benefits

Accepts input voltages above or below regulated output voltage
Automatic bypass mode functionality
Automatic and seamless transitions between buck and boost modes
Adaptive multilevel current limit scheme to optimize efficiency at low and high currents

Output current: up to 800 mA (V_IN = 2.5 V, V_OUT = 3.3 V)
High efficiency: up to 98%
Input voltage range: 1.8 V to 5.5 V
Selectable forced bypass power saving mode
41 μA quiescent current maximizes light-load efficiency
Fully protected for over-temperature and undervoltage
Small 3 mm x 3 mm 12 Ld TQFN package

Applications

Wearables (security, safety, medical, wellness, sport/fitness, lifestyle computing, communication, glamour)
Wearables clipped to clothing, wrist, shoe, jewelry, headphones

Telehealth applications (implantable medical devices, insulin pumps, gastric stimulators, defibrillators/pacemakers)
Smartphones and tablets