Intersil ISL9307IRTAAJBZ-T

降压同步（2），线性（LDO）（2）40.8V ~ 5.5V，1.5A1.5V ~ 5.5V

Overview

The ISL9307IRTAAJBZ-T is an integrated mini Power Management IC (mini-PMIC) ideal for applications for poweringlow-voltage microprocessor or multiple voltage rails with a battery as an input source, such as a single Li-ion or Li-polymer. ISL9307IRTAAJBZ-T integrates two high-efficiency, 3MHz, synchronous step-down converters (DCD1 and DCD2) and two low-input, low-dropout linear regulators (LDO1 and LDO2). The 3MHz PWM switching frequency allows the use of very small external inductors and capacitors. Bothstep-down converters can enter skip mode under light load conditions to further improve efficiency and maximize battery life.The ISL9307IRTAAJBZ-T features EN pins for each channel, thus allowing startup delay for power sequencing.The ISL9307IRTAAJBZ-T also provides two 300mA low-dropout (LDO) regulators. The input voltage range is 1.5V to 5.5V, which allows them to be powered from one of the on-chip step-down converters or directly from a battery. The default LDO power-up output comes with factory pre-set fixed output voltage options between 0.9V and 3.3V.The ISL9307IRTAAJBZ-T is available in a 4mmx4mm 16 Ld TQFN.

Features

Tape & Reel (TR) Package
4 outputs
Operating Temperature: -40°C~85°C
PFM TECHNIQUE ALSO USED

Surface Mount Mounting Type

Applications

There are a lot of Renesas Electronics America Inc.
ISL9307IRTAAJBZ-T Linear Regulator Controllers applications.

• Low noise SMPS post regulator
• Low-dropout SMPS post regulator
• High-current, current-limited switch
• Dual/Triple Power Supplies
• Desknotes and Notebooks
• Graphic Cards
• Ultra-Low-Dropout
• Voltage Regulators
• Low-Voltage DSP Power Supplies
• Microcontroller Power Supplies