IRDCIP1201-A International Rectifier, IRDCIP1201-A Datasheet

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IRDCIP1201-A

Manufacturer Part Number
IRDCIP1201-A
Description
BUCK CONV REF DESIGN KIT IP1201
Manufacturer
International Rectifier
Series
iPOWIR™r
Datasheets

Specifications of IRDCIP1201-A

Main Purpose
DC/DC, Step Down
Outputs And Type
2, Non-Isolated
Voltage - Output
1.5V, 2.5V
Current - Output
15A, 15A
Voltage - Input
3.14 ~ 5.5V
Regulator Topology
Buck
Frequency - Switching
300kHz
Board Type
Fully Populated
Utilized Ic / Part
iP1201
Package
Design Kit
Featured Part
iP1201
Input Voltage (v)
3.14V - 5.5V
Output Voltage (v)
0.8V - 3.3V Dual
Total Current
30A
Phases
2
Switching Frequency (khz)
200kHz - 400kHz
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Power - Output
-
Other names
*IRDCIP1201-A
Overview
The iP1201 is fully optimized solution for medium current synchro-
nous buck applications requiring up to 15A or 30A. In this document,
Fig. 1, 2, 3 and 4 are provided to enable engineers to easily evaluate
the iP1201 in an independent and parallel configuration that is
capable of providing up to 15A per phase with double-sided heat
sinking. Fig. 6, 7 and 8 and the complete bill of materials in Table 1
are provided as a reference design to enable engineers to very quickly
and easily design a dual phase converter. In order to optimize this
design to your specific requirements, refer to the iP1201 data sheet for
guidelines on external component selection and user adjustable
limits and specifications. Custom designs may require layout modifi-
cations.
Demoboard Quick Start Guide
Initial Settings:
Procedure for Connecting and Powering Up Demoboard:
1.
2.
3.
4.
5.
6.
7.
IRDCiP1201-A Recommended Operating Conditions
(refer to the iP1201 datasheet for maximum operating conditions)
Input voltage:
Output voltage:
Output current:
Switching Freq: 200kHz to 400kHz selectable.
R
R
IRDCiP1201-A, 300kHz, Dual 15A, 3.14V
EFERENCE
EFERENCE
Output Synchronous Buck Converter using iP1201
The output1 is set to 1.5V and output2 is set to 2.5V for independent configuration.
The output1 is set to 1.5V with R8, R10, R11 and R12 removed for parallel configuration.
Output can be adjusted from 0.8V to 3.3V as follow:
The switching frequency is set to R3=30.9k for 300kHZ
The input voltage range can be increased to allow operation between 3.14V
For paralleled single output operation see Fig. 6 for configuration table in reference design
schematic.
Connected JP2 for V
Disconnected JP2 for VIN > 3.5V.
Make sure JP3 is connected
Apply input voltage (3.14V-5.5V) across V
Apply load across VOUT1 pad and PGND pad and VOUT2 pad and PGND pad for independent
Apply load across VOUT1 pad and PGND pad and short R23 for parallel configuration.
Adjust load accordingly.
International Rectifier
1. V
2. V
configuration.
3.14 - 5.5V
Can be set between 0.8V – 3.3V, up to 90% max duty cycle.
Up to 15A (see recommended operating area Fig. 1, 2 and 3). The maximum current
should be limited to 11.5A if the PCB is the only heat sink.
OUT1
OUT2
: R9=R13= R7 [(V
: R10=R11= R8 [(V
IN
< 3.5V.
D
D
233 Kansas Street, El Segundo, CA 90245 USA
OUT 1
OUT2
/ Vref) – 1]. Set R7=R14=1k,Vref=0.8V
/ Vref) – 1]. Set R8=R12=1k,Vref=0.8V.
ESIGN
08/18/03
ESIGN
IN
and PGND
IN
IRDCiP1201-A
to 5.5V
IN
and 5.5V
IN
Dual
IN
.

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IRDCIP1201-A Summary of contents

Page 1

... R R EFERENCE EFERENCE International Rectifier IRDCiP1201-A, 300kHz, Dual 15A, 3.14V Output Synchronous Buck Converter using iP1201 Overview The iP1201 is fully optimized solution for medium current synchro- nous buck applications requiring up to 15A or 30A. In this document, Fig and 4 are provided to enable engineers to easily evaluate ...

Page 2

... IRDCiP1201 3. 200k 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4 Output V oltage (V ) Fig. 1: Recommended Operating Area 200kHz 3. 400kHz SW 0 0.8 1 1.2 1.4 1.6 1.8 2 2.2 Output V oltage (V ) Fig. 3: Recommended Operating Area 400kHz 400 380 360 340 320 300 280 260 240 220 ...

Page 3

... This paper is a suppliment to AN-1030 and explains how to use the double side Power Loss and SOA curves in the data sheet to validate if the operating conditions and thermal environment are within the Safe Operating Area of the iPOWIR product. www.irf.com = 1.5V 2.5V OUT1 OUT2 Output Current(A) Fig Typical Efficiency vs. Current IRDCiP1201-A 200kHz 300kHz 400kHz ...

Page 4

... IRDCiP1201-A VSW1S VSW1S Fig Reference Design Schematic PGND PGND 1 2 www.irf.com ...

Page 5

... Fig Component Placement (Top View) SideLayer Fig Component Placement (Bottom View) www.irf.com IRDCiP1201-A 5 ...

Page 6

... Resistor, thick film, 0Ω, 1/10W 1 R5 Resistor, thick film, 4.75kΩ, 1/10W Resistor, thick film, 7.15kΩ, 1/10W IRDCiP1201-A (Single, paralleled output configuration(for 1.5V output) QTY REF DESIGNATOR 6 C1, C2, C3, C4, C5, C6 Capacitor, ceramic, 100µF, 6.3V, X5R, 20% 3 C10, C19,C20 Capacitor, ceramic, 100pF, 50V, NPO, 5% ...

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