Intersil ISL9305IRTWLNCZ-T

Description
The ISL9305 is an integrated mini Power Management IC (mini-PMIC) designed for powering low-voltage microprocessors or multiple voltage rails with battery input sources, such as a single Li-ion or Li-Polymer battery. It integrates two high-efficiency 3MHz synchronous step-down converters (DCD1 and DCD2) and two low-input, low-dropout linear regulators (LD01 and LD02).

Features
Dual 800mA, Synchronous Step-down Converters and Dual 300mA, General-purpose LDOs
Input Voltage Range:
DCD1/DCD2: 2.3V to 5.5V
LD01/LD02: 1.5V to 5.5V
400kb/s I²C-bus Series Interface for Control Data Transfer
Adjustable Output Voltage:
DCD1/DCD2: 0.8V to VIN (adjustable)
DCD1/DCD2: 0.825V to 3.6V (fixed, I²C programmable)
LD01/LD02: 0.9V to 3.3V (fixed, I²C programmable)
50µA IQ (Typ) with DCD1/DCD2 in Skip Mode; 20μA IQ (Typ) for each Enabled LDO
On-the-fly I²C Programming of DC/DC and LDO Output Voltages
DCD1/DCD2 I²C Programmable Skip Mode Under Light Load or Forced Fixed Switching Frequency PWM Mode
Small, Thin, 4mmx4mm TQFN Package

Applications
Cellular Phones, Smart Phones
PDAs, Portable Media Players, Portable Instruments
Single Li-ion/Li-Polymer Battery-Powered Equipment
DSP Core Power