IPM6220A
®
Data Sheet
August 2004
FN9032.1
Advanced Triple PWM and Dual Linear
Power Controller for Portable
Applications
The IPM6220A 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.
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 r
- 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
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’s
DS(ON)
r
as the current sense element. Input voltage feed-
DS(ON)
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.
• Monitors Output Voltages
• Synchronous Converters Operate Out of Phase
The third PWM controller is a boost converter that regulates a
resistor selectable output voltage of nominally 12V.
• Separate Shut-Down Pins for Advanced Configuration and
Power Interface (ACPI) Compatibility
Two internal linear regulators provide +5V ALWAYS and
+3.3V ALWAYS low current outputs required by the notebook
system controller.
• 300kHz Fixed Switching Frequency on Main Outputs
• Thermal Shut-Down Protection
• Pb-free Available
Ordering Information
Applications
TEMP.
PKG.
•
Mobile PCs
PART NUMBER RANGE (°C)
PACKAGE
DWG. #
• Hand-Held Portable Instruments
IPM6220ACA
-10 to 85 24 Ld SSOP
M24.15
IPM6220ACAZ
(Note)
-10 to 85 24 Ld SSOP (Pb-free) M24.15
Related Literature
• Application Note AN9915
IPM6220ACAZ-T
(Note)
-10 to 85 24 Ld SSOP
Tape & Reel (Pb-free)
M24.15
M24.15
Pinout
IPM6220A (SSOP)
TOP VIEW
IPM6220ACAZA-T
(Note)
-10 to 85 24 Ld SSOP
Tape & Reel (Pb-free)
VBATT
3.3V ALWAYS
BOOT2
1
2
3
4
5
6
7
8
9
24 BOOT1
23 UGATE1
22 PHASE1
21 ISEN1
IPM6220EVAL1
Evaluation Board
NOTE: Intersil Pb-free products employ special Pb-free material
sets; molding compounds/die attach materials and 100% matte tin
plate termination finish, which is compatible with both SnPb and
Pb-free soldering operations. Intersil Pb-free products are MSL
classified at Pb-free peak reflow temperatures that meet or exceed
the Pb-free requirements of IPC/JEDEC J Std-020B.
UGATE2
PHASE2
20 LGATE1
19 PGND1
5V ALWAYS
LGATE2
18
VSEN1
PGND2
17 SDWN1
16 GATE3
15 VSEN3
14 GND
ISEN2
VSEN2 10
SDWN2 11
PGOOD 12
13 SDWNALL
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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1
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