1
IPM6220A
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.
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
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
• 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
DS(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 Operate Out of Phase
• Separate Shut-Down Pins for Advanced Configuration and
Power Interface (ACPI) Compatibility
• 300kHz Fixed Switching Frequency on Main Outputs
• Thermal Shut-Down Protection
• Pb-free Available
Applications
•
Mobile PCs
• Hand-Held Portable Instruments
Related Literature
• Application Note AN9915
Pinout
IPM6220A (SSOP)
TOP VIEW
Ordering Information
PART NUMBER
TEMP.
RANGE (°C) PACKAGE
PKG.
DWG. #
IPM6220ACA -10 to 85 24 Ld SSOP M24.15
IPM6220ACAZ
(Note)
-10 to 85 24 Ld SSOP (Pb-free) M24.15
IPM6220ACAZ-T
(Note)
-10 to 85 24 Ld SSOP
Tape & Reel (Pb-free)
M24.15
IPM6220ACAZA-T
(Note)
-10 to 85 24 Ld SSOP
Tape & Reel (Pb-free)
M24.15
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.
VBATT
3.3V ALWAYS
BOOT2
UGATE2
VSEN2
SDWN2
PGOOD
BOOT1
LGATE1
ISEN1
PHASE1
GND
GATE3
SDWNALL
UGATE1
24
23
22
21
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
9
10
11
12
PGND2
PHASE2
ISEN2
VSEN1
VSEN3
5V ALWAYS
LGATE2
PGND1
SDWN1
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 Americas Inc.
Copyright © Intersil Americas Inc. 2001, 2004, All Rights Reserved.
All other trademarks mentioned are the property of their respective owners.
FN9032.1Data Sheet August 2004
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