IRDCIP1827 International Rectifier, IRDCIP1827 Datasheet

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IRDCIP1827

Manufacturer Part Number
IRDCIP1827
Description
Reference Design kit for the iP1827 a 600kHz, 25A SupIRBuck Synchronous Buck Converter
Manufacturer
International Rectifier
Datasheet

Specifications of IRDCIP1827

Package
Design Kit
Featured Part
iP1827
Input Voltage (v)
12V
Output Voltage (v)
1.05V
Switching Frequency (khz)
600kHz
DESCRIPTION
The
converter,
performance and flexible solution in a small
7.7mm X 7.7 mm LGA package.
Key features offered by the iP1827 include
programmable soft-start ramp, precision
0.6V
thermal protection, programmable switching
frequency, Enable input, input under-voltage
lockout for proper start-up, and pre-bias
start-up.
BOARD FEATURES
1/11/2011
SupIRBuck
V
Vcc=+3.3V (3.46V Max)
V
F
L= 0.3uH
C
C
s
in
out
in
out
USER GUIDE FOR iP1827 EVALUATION BOARD
=600kHz
iP1827
= 5x22uF (ceramic 1206) + 1X330uF (electrolytic)
reference
= +12V (+ 13.2V Max)
=10x22uF (ceramic 0805)
= +1.8V @ 0- 25A
providing
is
voltage,
a
synchronous
a
TM
compact,
Power
Good
buck
high
,
An output over-current protection function is
implemented by sensing the voltage developed
across the on-resistance of the synchronous
rectifier
performance.
This user guide contains the schematic and bill
of materials for the iP1827 evaluation board.
The guide describes operation and use of the
evaluation board itself. Detailed
information for iP1827 is available in the iP1827
data sheet.
MOSFET
for
IRDCiP1827
optimum
application
cost
and
1

Related parts for IRDCIP1827

IRDCIP1827 Summary of contents

Page 1

... This user guide contains the schematic and bill of materials for the iP1827 evaluation board. , Good The guide describes operation and use of the evaluation board itself. Detailed information for iP1827 is available in the iP1827 data sheet. IRDCiP1827 for optimum cost and application 1 ...

Page 2

... Separate power ground and analog ground are used and may be connected together using a 0 ohm resistor at one of two possible locations 1/11/2011 Table I. Connections Signal Name V (+12V) in Ground Vcc input Ground for Vcc input Ground of V out V (+1.8V) out Enable Power Good Signal IRDCiP1827 R18 should be removed for 2 ...

Page 3

... PVCC 1/11/2011 1 1 BiasGnd 12 VOSM 7 VCC 10 PGD IRDCiP1827 3 ...

Page 4

... W,5% 10uF 0603, X5R, 6.3V 20K 0603,1/10 W,1% 1.21K 0603,1/10 W,1% 604 0603,1/10 W,1% 402 0603,1/10 W,1% 49.9K 49.9K,0603,1/10 W,1% 7.5K 7.5K,0603,1/10W,1% 10K 0603,1/10 W,1% iP1827 iP1827 7.7mmX7.7mm IRDCiP1827 Manufacturer Part Number TDK C3216X5R1C226M Panasonic EEV-FK1E331P Panasonic ECJ-1VB1E104K Panasonic ECJ-1VB1H222K Murata GRM1885C1H121JA01D Panasonic ECJ-2FB0J226M TDK C2012X5R1A475K Panasonic ECJ-1VB1H822K Vitec ...

Page 5

... Fig. 4: Start up with 1V Pre Bias , 0A Load Fig. 6: Inductor node at 25A load Ch :LX 2 1/11/2011 :Enable SS IRDCiP1827 Fig. 3: Start up at 25A Load Fig. 5: Output Voltage Ripple, 25A load out , Fig ...

Page 6

... TYPICAL OPERATING WAVEFORMS Vin=12.0V, Vcc=3.3V, Vo=1.8V, Io=2.5A-10A, Room Temperature, no air flow Fig. 8: Transient Response, 2.5A to 10A step (2.5A/us) 1/11/2011 out, 4 IRDCiP1827 6 ...

Page 7

... TYPICAL OPERATING WAVEFORMS Vin=12.0V, Vcc=3.3V, Vo=1.8V, Io=17.5A-25A, Room Temperature, no air flow Fig. 9: Transient Response, 17.5A to 25A step (2.5A/us) 1/11/2011 out, 4 IRDCiP1827 7 ...

Page 8

... TYPICAL OPERATING WAVEFORMS Vin=12.0V, Vcc=3.3V, Vo=1.8V, Io=0A-25A, Room Temperature Fig. 10: Bode Plot at 25A load shows a bandwidth of 110.88kHz and phase margin of 51.29 1/11/2011 degrees IRDCiP1827 8 ...

Page 9

... TYPICAL OPERATING WAVEFORMS Vin=12.0V, Vcc=3.3V, Vo=1.8V, Io=0A-25A, Room Temperature, no air flow 2 4.5 4 3.5 3 2.5 2 1.5 1 0.5 0 2.5 5 1/11/2011 7.5 10 12.5 15 Iout (A) Fig.11: Efficiency versus load current 7.5 10 12.5 15 Iout (A) Fig.12: Power loss versus load current IRDCiP1827 17.5 20 22.5 25 17 ...

Page 10

... THERMAL IMAGES Vin=12.0V, Vcc=3.3V, Vo=1.8V, Io=0A-25A, Room Temperature, 200 LFM Fig. 13: Thermal Image of the board at 25A load 1/11/2011 Test point 1 is iP1827 Test point 2 is inductor IRDCiP1827 10 ...

Page 11

... C 7.32 4 14X 0.508 X 0.508 BOTTOM VIEW Fig. 14. Mechanical Outline Drawing IRDCiP1827 NOTES: 1. DIMENSIONING & TOLERANCING PER ASME Y14.5M-1994. 2. DIMENSIONS ARE SHOWN IN MILLIMETERS [INCHES]. 3. CONTROLLING DIMENSION: MILLIMETERS 4 LAND PAD OPENINGS. 5 PRIMARY DATUM C (SEATING PLANE) IS DEFINED BY THE LAND PAD OPENINGS. ...

Page 12

... Fig. 15. PCB Metal and Components Placement IRDCiP1827 12 ...

Page 13

... Fig. 16. Stencil Design IRDCiP1827 13 ...

Page 14

... Fig. 17. Solder Resist IRDCiP1827 14 ...

Page 15

... Fig. 18. Tape and Reel Information IRDCiP1827 ...

Page 16

... IR WORLD HEADQUARTERS: This product has been designed and qualified for the Consumer market Data and specifications subject to change without notice. 12/01 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105 Visit us at www.irf.com for sales contact information IRDCiP1827 TAC Fax: (310) 252-7903 ...

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