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ISL9122AIRNZ is a highly integrated non-inverting buck-boost switching regulator that accepts input voltages both above or below the regulated output voltage. It features an extremely low quiescent current consumption of 1300nA in Regulation mode, 120nA in Forced Bypass mode, and 8nA in Shutdown mode. It supports input voltages from 1.8V to 5.5V.

Product Features

1300nA quiescent current

84% efficiency at 10µA load (VIN = 3.6V, VOUT = 3.3V)

97% peak efficiency (VIN = 3.6V, VOUT = 3.3V)

Input voltage range: 1.8V to 5.5V

Output voltage range: 1.8V to 5.375V

Output current: up to 500mA (VIN > VOUT > 2.5V)

Selectable Forced and Auto Bypass power saving modes

Seamless PWM/PFM and buck/boost transition

I2C control and voltage adjustability

Hysteretic controller

Small 1.8mm×1.0mm 8 Bump WLCSP and 3.0mm×2.0mm 8 Ld DFN packages

Applications

Smart watches and wristband devices

Wireless earphones

Internet of Things (IoT) devices

Water, gas, and oil meters

Portable medical devices

Hearing aid devices

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  A: our self-supporting products are from cooperative domestic and foreign original factories or authorized agents, and the source can be traced to ensure the original and authentic products.

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