IPM6210
TM
Data Sheet
May 2001
File Number
9014.1
Precision Dual PWM Controller And
Linear Regulator for Notebook CPUs
The IPM6210 is a highly integrated power controller which
provides a complete power management solution for mobile
CPUs. The IC integrates two PWM controllers and a linear
regulator as well as monitoring and protection circuitry into a
single 28-lead plastic SSOP package. The two PWM
controllers regulate the microprocessor core and I/O
voltages with synchronous-rectified buck converters, while
the linear regulator powers the CPU clock.
The IPM6210 includes 5-bit digital-to-analog converter
(DAC) that adjusts the core PWM output voltage from
0.925V
DC
to 2.0V
DC
and conforms to the Intel Mobile VID
specification. The DAC setting may be changed during
operation to accommodate Dual-Mode processors. Special
measures are taken to provide such a transition with
controlled rate in a specified 100碌s. A precision reference,
remote sensing, and a proprietary architecture with
integrated processor mode-compensated 鈥渄roop鈥?provide
excellent static and dynamic core voltage regulation. The
second PWM controller has a fixed 1.5V output voltage and
powers the I/O circuitry. Both PWM controllers have
integrated feedback loop compensation that dramatically
reduces number of the external components. At nominal
loads PWM controllers operate at a fixed frequency of
300kHz. At light loads when the filter inductor current
becomes discontinuous, controllers operate in a hysteretic
mode. Out-of-phase operation of two PWM controllers to
reduce input current ripple is provide in both modes of
operation. The linear regulator uses an internal pass device
to provide 2.5V for the CPU clock generator.
The IPM6210 monitors all the output voltages. A single
Power-Good signal is issued when soft start is completed
and all outputs are within 鹵10% of their respective set points.
A built-in overvoltage protection for the core and I/O outputs
forces the lower MOSFETs on to prevent output voltages
from going above 115% of their settings. Undervoltage
protection latches the chip off when any of three outputs
drops below 75% of the set value. The PWM controller's
overcurrent circuitry monitors the output current by sensing
the voltage drop across the lower MOSFETs. If precision
overcurrent protection is required, an external current-sense
resistor may optionally be used.
Features
鈥?Provides 3 Regulated Voltages
- 0.9V to 2.0V Microprocessor Core (SpeedStep
TM
Enabled)
- 1.5V Microprocessor I/O
- 2.5V Microprocessor Clock Generator
鈥?High Efficiency Over Wide Load Range
鈥?Not Dissipative Current-Sense Scheme
- Uses MOSFET鈥檚 r
DS(ON)
- Optional Current-Sense Resistor for Precision
Overcurrent
鈥?Adaptive Dead-Time Drivers for N-Channel MOSFETs
鈥?Operates from +5V, +3.3V and Battery (5.6-24V) Inputs
鈥?Precision Core Voltage Control:
- Remote 鈥淜elvin鈥?Sensing
- Summing Current-Mode Control
- On-Chip Mode-Compensated 鈥淒roop鈥?for Optimum
Transient Response and Lower Processor Power
Dissipation
鈥?TTL-Compatible 5-Bit Digital Output Voltage Selection
- Wide Range - 0.925V
DC
to 1.3V
DC
in 25mV Steps, and
from 1.3V
DC
to 2.0V
DC
in 50mV Steps
- Programmable 鈥淥n-the-Fly鈥?VID Code Change with
Customer Programmable Slew Rate and 100碌s Settling
Time
鈥?Power-Good Output Voltage Monitor
鈥?No Negative Voltage on Outputs at Turn-Off
鈥?Overvoltage, Undervoltage and Overcurrent Fault
Monitors
鈥?300kHz Fixed Switching Frequency
鈥?Thermal Shutdown
Applications
鈥?Mobile PCs
鈥?Web Tablets
鈥?Internet Appliances
Ordering Information
PART NUMBER
IPM6210CA
IPM6210CA-T
TEMP. (
o
C)
-10 to 85
-10 to 85
PACKAGE
28 Ld SSOP
28 Ld SSOP,
Tape and Reel
PKG. NO.
M28.15
M28.15
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 Americas Inc.
SpeedStep鈩?is a trademark of Intel Corporation.
|
Copyright 漏 Intersil Americas Inc. 2001, All Rights Reserved
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
