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IPM6220CA Datasheet

  • IPM6220CA

  • Advanced Triple PWM and Dual Linear Power Controller for Por...

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  • INTERSIL   INTERSIL

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I GNS
D ES
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O R N EM EN T
E D F PLA C
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OMM NDED R Feb. 20
REC
Data Sheet
le
E
NOT ECOMM (Availab
R
232
I S L6
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 high-
performance 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 synchronous-
rectified 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鈥檚
r
DS(ON)
as the current sense element. Input voltage feed-
forward 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
鈥?Provides Five Regulated Voltages
- +5V ALWAYS
- +3.3V ALWAYS
- +5V Main
- +3.3V Main
- +12V
鈥?High Efficiency Over Wide Line and Load Range
- Synchronous Buck Converters on Main Outputs
- Hysteretic Operation at Light Load
鈥?No Current-Sense Resistor Required
- Uses MOSFET鈥檚 r
DS(ON)
- Optional Current-Sense Resistor for More Precision
鈥?Operates Directly From Battery 5.6 to 22V Input
鈥?Input Undervoltage Lock-Out (UVLO)
鈥?Excellent Dynamic Response
- Voltage Feed-Forward and Current-Mode Control
鈥?Monitors Output Voltages
鈥?Synchronous Converters Operate Out of Phase
鈥?Separate Shut-Down Pins for Advanced Configuration and
Power Interface (ACPI) Compatibility
鈥?300kHz Fixed Switching Frequency on Main Outputs
鈥?Thermal Shut-Down Protection
Ordering Information
PART NUMBER
IPM6220CA
IPM6220EVAL1
TEMP.
RANGE (
o
C)
0 to 70
PACKAGE
24 Ld SSOP
PKG.
NO.
M24.15
Applications
鈥?Mobile PCs
鈥?Hand-Held Portable Instruments
Evaluation Board
Pinout
IPM6220 (SSOP)
TOP VIEW
VBATT 1
3.3V ALWAYS 2
BOOT2 3
UGATE2 4
PHASE2 5
5V ALWAYS 6
LGATE2 7
PGND2 8
ISEN2 9
VSEN2 10
SDWN2 11
PGOOD 12
24 BOOT1
23 UGATE1
22 PHASE1
21 ISEN1
20 LGATE1
19 PGND1
18 VSEN1
17 SDWN1
16 GATE3
15 VSEN3
14 GND
13 SDWNALL
Related Literature
鈥?Application Note AN9915
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
|
Intersil and Design is a trademark of Intersil Corporation.
|
Copyright 漏 Intersil Corporation 2000

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