參數(shù)資料
型號(hào)： IPM6220CA
廠(chǎng)商： INTERSIL CORP
元件分類(lèi)： 穩(wěn)壓器
英文描述： Advanced Triple PWM and Dual Linear Power Controller for Portable
中文描述： SWITCHING CONTROLLER, 345 kHz SWITCHING FREQ-MAX, PDSO24
封裝： PLASTIC, SSOP-24
文件頁(yè)數(shù)： 1/14頁(yè)
文件大?。?/td> 358K
代理商： IPM6220CA
1
TM
FN4903.1
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
IPM6220
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
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.
Pinout
IPM6220 (SSOP)
TOP VIEW
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
Applications
Mobile PCs
Hand-Held Portable Instruments
Related Literature
Application Note AN9915
Ordering Information
PART NUMBER
TEMP.
RANGE (
o
C)
PACKAGE
PKG.
NO.
IPM6220CA
0 to 70
24 Ld SSOP
M24.15
IPM6220EVAL1
Evaluation Board
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
Data Sheet
December 2000
NOT RECOMMENDED FOR NEW DESIGNS
RECOMMENDED REPLACEMENT
ISL6232 (Available Feb. 2004)
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