Datasheet Renesas ISL9122A — 数据表

Datasheet
ISL9122A
Ultra-Low IQ Buck-Boost Regulator With Bypass
The ISL9122A 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
provides 84% efficiency at 10µA load (VIN = 3.6V,
VOUT = 3.3V) and has a peak efficiency greater than
97%. It supports input voltages from 1.8V to 5.5V.
The ISL9122A has automatic bypass functionality for
situations in which the input voltage is close to the
output voltage, and it automatically transitions
between Buck and Boost modes without significant
output disturbance. In addition to the automatic
bypass functionality, the Forced Bypass power-saving
mode can be chosen if voltage regulation is not
required. Forced Bypass power saving mode is
accessible using the I2C interface bus.
The ISL9122A is capable of delivering up to 500mA of
output current (VIN = 3.6V, VOUT = 3.3V) and provides …