IPM6220A Datasheet, PDF (1/15 Pages) Intersil Corporation – Advanced Triple PWM and Dual Linear Power Controller for Portable Applications

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August 2004
IPM6220A
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.
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.
Ordering Information
TEMP.
PART NUMBER 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
M24.15
Tape & Reel (Pb-free)
IPM6220ACAZA-T -10 to 85 24 Ld SSOP
M24.15
(Note)
Tape & Reel (Pb-free)
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.
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
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
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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