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IPM6220

Intersil Corporation
Part Number IPM6220
Manufacturer Intersil Corporation
Description Advanced Triple PWM and Dual Linear Power Controller for Portable
Published Apr 16, 2005
Detailed Description NS ES I G D W NT R NE D F O LA C EM E E D MEN ED REP b. 2004) COM D E R Data Sheet EN le Fe NOT ECOMM (Availab R 232 I S...
Datasheet PDF File IPM6220 PDF File

IPM6220
IPM6220

Overview
NS ES I G D W NT R NE D F O LA C EM E E D MEN ED REP b.
2004) COM D E R Data Sheet EN le Fe NOT ECOMM (Availab R 232 I S L6 TM IPM6220 December 2000 FN4903.
1 Advanced Triple PWM and Dual Linear Power Controller for Portable Applications The IPM6220 provides a highly integrated power control and protection solution for five output voltages required in highperformance notebook PC applications.
The IC integrates three fixed frequency pulse-width-modulation (PWM) controllers and two linear regulators along with monitoring and protection circuitry into a single 24 lead SSOP package.
The two PWM controllers that regulate the system main 5V and 3.
3V voltages are implemented with synchronousrectified buck converters.
Synchronous rectification and hysteretic operation at light loads contribute to high efficiency over a wide range of input voltage and load variation.
Efficiency is further enhanced by using the lower MOSFET’s rDS(ON) as the current sense element.
Input voltage feedforward ramp modulation, current-mode control, and internal feed-back compensation provide fast and stable handling of input voltage load transients encountered in advanced portable computer chip sets.
The third PWM controller is a boost converter that regulates a resistor selectable output voltage of nominally 12V.
Two internal linear regulators provide +5V ALWAYS and +3.
3V ALWAYS low current outputs required by the notebook system controller.
Features • Provides Five Regulated Voltages - +5V ALWAYS - +3.
3V ALWAYS - +5V Main - +3.
3V Main - +12V • High Efficiency Over Wide Line and Load Range - Synchronous Buck Converters on Main Outputs - Hysteretic Operation at Light Load • No Current-Sense Resistor Required - Uses MOSFET’s rDS(ON) - Optional Current-Sense Resistor for More Precision • Operates Directly From Battery 5.
6 to 22V Input • Input Undervoltage Lock-Out (UVLO) • Excellent Dynamic Response - Voltage Feed-Forward and Current-Mode Control • Monitors Output Voltages • Synchronous Converters...


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