This website uses cookies. By using this site, you consent to the use of cookies. For more information, please take a look at our Privacy Policy.

Images are for reference only,

See Technical Specifications

ISL6443AIRZ

300kHz Dual, 180 Out-of-Phase, Step-Down PWM and Single Linear Controller

Manufacturer:

Renesas Electronics Corporation
Mfr.Part #:

ISL6443AIRZ
Datasheet:

ISL6443AIRZ Datasheet (PDF)
Applications:

Power Supplies
Current - Supply:

2mA
Voltage - Supply:

5.6V ~ 24V
Operating Temperature:

-40°C ~ 85°C
EDA/CAD Models:

Request Free CAD Models for ISL6443AIRZ

Email: [email protected]

Skype: live:.cid.ab6b29428937b76

Tel: +852 95804164

ISL6443AIRZ General Description

Support is limited to customers who have already adopted these products.

The ISL6443A is a high-performance, triple-output controller optimized for converting wall adapter, battery or network intermediate bus DC input supplies into the system supply voltages required for a wide variety of applications. Each output is adjustable down to 0.8V. The two PWMs are synchronized at 180° out of phase, thus reducing the RMS input current and ripple voltage. The ISL6443A incorporates several protection features. An adjustable overcurrent protection circuit monitors the output current by sensing the voltage drop across the lower MOSFET. Hiccup mode overcurrent operation protects the DC/DC components from damage during output overload/short circuit conditions. Each PWM has an independent logic-level shutdown input (SD1SD1 and SD2). A single PGOOD signal is issued when soft-start is complete on both PWM controllers and their outputs are within 10% of the set point and the linear regulator output is greater than 75% of its setpoint. Thermal shutdown circuitry turns off the device if the junction temperature exceeds +150 °C.

Key Features

Wide Input Supply Voltage Range
Variable 5.6V to 24V
Fixed 4.5V to 5.6V
Three Independently Programmable Output Voltages
Switching Frequency 300kHz
Out of Phase PWM Controller Operation
Reduces Required Input Capacitance and Power Supply Induced Loads
No External Current Sense Resistor
Uses Lower MOSFET's r_DS(ON)
Bidirectional Frequency Synchronization for Synchronizing Multiple ISL6443As
Programmable Soft-Start
Extensive Circuit Protection Functions
PGOOD
UVLO
Overcurrent
Over-temperature
Independent Shutdown for Both PWMs
Excellent Dynamic Response
Voltage Feed-Forward with Current Mode Control
QFN Packages:
QFN - Compliant to JEDEC PUB95 MO-220 QFN - Quad Flat No Leads - Package Outline
Near Chip Scale Package Footprint, which Improves PCB Efficiency and has a Thinner Profile
Pb-Free (RoHS Compliant)

Specifications

Series	-	Applications	Power Supplies
Current - Supply	2mA	Voltage - Supply	5.6V ~ 24V
Operating Temperature	-40°C ~ 85°C	Mounting Type	Surface Mount
Base Product Number	ISL6443