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Intersil Electronic Components Datasheet

IPM6220 Datasheet

Advanced Triple PWM and Dual Linear Power Controller for Portable

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NOTTMRREECICSOOLM6MD2MMa3tE2EaNN(SADDhvEEaeDDielatFRbOEleRPFLNeAEbCW.E2MD00EE4NS)ITGNS
December 2000
IPM6220
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’s
rDS(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 (oC)
PACKAGE
IPM6220CA
0 to 70 24 Ld SSOP
IPM6220EVAL1 Evaluation Board
PKG.
NO.
M24.15
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
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 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
Applications
Mobile PCs
• Hand-Held Portable Instruments
Related Literature
• 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 © Intersil Corporation 2000


Intersil Electronic Components Datasheet

IPM6220 Datasheet

Advanced Triple PWM and Dual Linear Power Controller for Portable

No Preview Available !

Block Diagram
VSEN3
GATE3
VBATT
CLK1
BOOST
CONTROLLER
RAMP 2
CLK
200ns
RAMP 1
CLK2
CLK1
BOOT2
UGATE2
PHASE2
REF
HGDR2
PWMMD2
GATE LOGIC 2
HI
SHUTOFF
LGATE2
PGND2
VSEN2
VCC
LGDR2
OVP2
DEADTIME
PWM/HYST
PWM ON
LO HYST ON
HYST COMP2
CLK2 -
OC COMP2
EA2
-
-
2.8V
OC
LOGIC2
REF
PWM MODE 2
+
-
ISEN2
R1 = 20K PWMMD2
-
LGATE2
LGATE2
VOLT-
SECOND
CLAMP
UVFLT
OVP1
OVP2
VCC PWM
LATCH 2
DQ
R
>Q
-
OUTPUT
VOLTAGE
MONITOR
GND
UVFLT
POWER-ON
RESET (POR)
PWMMD1
GATE LOGIC 1
HI
SHUTOFF
HGDR1
BOOT1
UGATE1
PHASE1
POR
PWM VCC
LATCH 1
QD
R
Q<
-
DEADTIME
PWM/HYST
PWM ON
HYST ON
LO
VCC
LGDR1
OVP1
LGATE1
PGND1
HYST COMP1
-
CLK1
OC COMP1
OC LOGIC1
-
EA1
-
VSEN1
VOLT-
SECOND
CLAMP
REF
PWMMD1
+
-
PWM MODE 1
R1 = 20K
ISEN1
-
VBATT
VSEN1
LGATE1
LGATE1
SDWN
LDO1
LDO2
PGOOD
3.3V-ALWAYS
VCC
POR
REFERENCE
SDWN
AND
SOFT START
REF 2.5V
SDWN1
SDWN2
SDWNALL
5V-ALWAYS
FIGURE 1.


Part Number IPM6220
Description Advanced Triple PWM and Dual Linear Power Controller for Portable
Maker Intersil Corporation
Total Page 14 Pages
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