Datasheet Intersil ISL91133IIPZ-T — Datenblatt

DATA SHORT
To request the full datasheet, please visit www.intersil.com/products/isl91133 ISL91133 FN8680
Rev 0.00
September 5, 2014 High Efficiency 2.3A Boost Regulator With Input-to-Output Bypass
The ISL91133 is an integrated boost switching regulator for
battery powered applications. The device provides a power
supply solution for products using a one cell Li-ion or Lipolymer battery. Features The device is capable of delivering up to 2.3A output current
from VIN = 2.5V and VOUT = 3.3V. The no load quiescent
current is only 108ОјA in Boost Mode and 45ОјA in Forced
Bypass Mode, which significantly reduces the standby
consumption. Burst current up to 2.5A (VIN = 2.5V, VOUT = 3.3V, tON <
600Вµs, T = 4.6ms) The ISL91133 offers a Bypass Mode operation where the
output is directly connected to the input through a 38mО©
MOSFET to allow a significantly lower dropout voltage. The
Bypass Mode can be entered by an external command, or by
auto bypass. The Forced Bypass Mode allows the output
voltage to operate close to the input voltage and improves the
efficiency under these conditions.
The ISL91133 is designed to support 6 fixed output voltages
ranging from 3.15V to 5V. A voltage select pin is available for
each output variant to scale up the output voltage by a small
offset to compensate the load transient droop.
The ISL91133 requires only an inductor and a few external …