DataSheeT
Intel® Enpirion® Power Solutions
EM2140P01QI 40A PowerSoC
Step-Down DC-DC Switching Converter with Integrated Inductor, Featuring
Digital Control with PMBus
TM
v1.2 Compliant Interface
Description
The EM2140 is a fully integrated 40A PowerSoC
synchronous buck converter. It features an
advanced
digital controller,
gate
drivers,
synchronous MOSFET switches, and a high
performance inductor. Only input and output filter
capacitors and a few small signal components are
required for a complete solution. A PMBus version
1.2 compliant interface provides setup, control, and
telemetry.
Differential remote sensing and ±0.5% set-point
accuracy provides precise regulation over line, load
and temperature variation. Very low ripple further
reduces accuracy uncertainty to provide best in
class static regulation for today’s FPGAs, ASICs,
processors, and DDR memory devices.
The EM2140 may be used in standalone mode or
utilizing the PMBus interface for a high degree of
flexibility and programmability. Advanced digital
control techniques ensure stability and excellent
dynamic performance, and eliminate the need for
external compensation components. The PC-based
Intel Enpirion Digital Power Configurator provides a
user-friendly and easy-to-use interface to the
device for communication and configuration.
The EM2140 features high conversion efficiency
and superior thermal performance to minimize
thermal de-rating limitations, which is key to
product reliability and longevity.
Features
•
•
•
•
•
Integrated inductor, FETs, and digital controller
Wide 4.5V to 16V V
IN
range
0.5V to 1.325V V
OUT
range
40A continuous current with no thermal de-
rating
High efficiency in 11mm x 17mm x 6.76mm QFN
package
o
90% efficiency at V
IN
= 12V
,
V
OUT
= 1.2V
Optimized total solution size of only 365 mm
2
Meets all high performance FPGA requirements
o
Digital loop for best in class transient response
o
0.5% set-point over line, load, and
temperature
o
Output ripple as low as 10 mV peak-peak
o
Differential remote sensing
o
Monotonic startup into pre-bias output
o
Optimized FPGA configs stored in NVM
Programmable through PMBus™
o
V
OUT
margining, startup and shutdown delays
o
Programmable warnings, faults and response
Ability to operate without PMBus™
o
RVSET resistor for programmable V
OUT
o
RTUNE resistor for single resistor
compensation
Tracking pin for complex sequencing
RoHS compliant, MSL level 3, 260°C reflow
•
•
•
•
•
•
Applications
•
High performance FPGA supply rails
•
ASIC and processor supply rails
•
High density double data rate (DDR) memory
VDDQ rails
Page 1
13150
June 21, 2018
Rev D
Data Sheet | Intel Enpirion Power Solutions: EM2140
Pin Description
Table 2
PIN
1,2,3,
79-101
4
NAME
VOUT
RVSET
I/O
Regulated
Output
Analog
I/O
Analog
I/O
Analog
Input
Analog
I/O
Analog
I/O
PWM
Digital I/O
Digital I/O
Digital
Input
Digital
Output
Digital I/O
Digital
Input
Output
Input
Supply
Ground
Input
Supply
Input
Supply
NC
Ground
FUNCTION
Regulated output voltage. Decouple to PGND with appropriate filter capacitors
A resistor from RVSET to AGND; and can be used to program the V
OUT
set-point.
Using 1% tolerance or better resistor. See
Table 8
for more information.
A resistor from RTUNE to AGND; and can be used to tune the transient
compensator for the amount of output capacitance. Using 1% tolerance or better
resistor. See
Table 9
for more information.
Single-ended input voltage sense (relative to AGND).
A resistor from ADDR1 to AGND; and can be used to set the PMBus™ address. Use
a 1% tolerance or better resistor.
A resistor from ADDR0 to AGND; and can be used to set the PMBus™ address. Use
a 1% tolerance or better resistor.
PWM signal test pin.
PWM synchronization signal
Power OK is selectable as a push-pull output or an open drain transistor for power
system state indication. See the Power OK description for details
PMBus-compatible control pin with programmable functionality. CTRL should
never be left floating if enabled in Configuration. The default configuration is for
V
OUT
to be on with CTRL high (positive edge)
PMBus™ alert line.
PMBus™ serial data I/O.
PMBus™ serial clock input.
3.3V output of the internal LDO. May be used as pull-up supply for PMBus™ pins
and CTRL pin.
Input supply for MOSFET switches. Decouple to PGND with appropriate filter
capacitors. Refer to Recommended Application Circuit section for more details.
Power ground. Ground for MOSFET switches.
5.0V supply voltage for driver circuitry. Decouple to PGND using a 2.2µF MLCC
high quality ceramic capacitor.
5.0V supply voltage for analog circuitry.
No connect. Do not connect to any signal, supply, or ground.
Digital ground. Connect to AGND pin directly.
5
6
7
8
9
10
11
12
13
14
15
16
17-21,
61-64,
103
22-60,
104
65
66
67,68,
73-76
69
RTUNE
VINSEN
ADDR1
ADDR0
PWM
SYNC
POK
CTRL
SALRT
SDA
SCL
VDD33
PVIN
PGND
PVCC
VCC
NC
DGND
Page 4
13150
June 21, 2018
Rev D
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