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PDF IRDCIP1201-A Data sheet ( Hoja de datos )
| Número de pieza | IRDCIP1201-A | |
| Descripción | IN Dual Output Synchronous Buck Converter using iP1201 | |
| Fabricantes | International Rectifier | |
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R DEFERENCE ESIGN IRDCiP1201-A
International Rectifier • 233 Kansas Street, El Segundo, CA 90245 USA
IRDCiP1201-A, 300kHz, Dual 15A, 3.14VIN to 5.5VIN Dual
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. 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:
•
•
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 switc21h..inVVgOOUUfTTr12e::qRRu91e=0n=RcRy131is1==sReR7t8[t(o[V(VROUO3TU=1T/23/V0Vr.e9refk)f)f–o–1r 1]3.]0.S0SeketHtRZR78==RR1142==11k,kV,Vreref=f=00.8.8VV.
•
•
The
For
input voltage range can
paralleled single output
be increased
operation see
tFoiga.llo6wfoor pceornaftiigounrabteiotwn eteanble3.1in4VreINfearnednc5e.5dVeINs.ign
schematic.
Procedure for Connecting and Powering Up Demoboard:
1.
2.
Connected JP2 for
Disconnected JP2
fVoIrN
< 3.5V.
VIN > 3.5V.
3. Make sure JP3 is connected
4.
5.
Apply
Apply
input
load
avcorlotasgseV(O3.U14TV1-p5a.5dVa) nadcrPosGsNVDINpaandd
PGND
and VOUT2
pad
and
PGND
pad
for
independent
configuration.
6. Apply load across VOUT1 pad and PGND pad and short R23 for parallel configuration.
7. Adjust load accordingly.
IRDCiP1201-A Recommended Operating Conditions
(refer to the iP1201 datasheet for maximum operating conditions)
Input voltage: 3.14 - 5.5V
Output voltage: Can be set between 0.8V – 3.3V, up to 90% max duty cycle.
Output current: 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.
Switching Freq: 200kHz to 400kHz selectable.
08/18/03
1 page  
IRDCiP1201-A
Fig. 7 - Component Placement (Top View) SideLayer
www.irf.com
Fig. 8 - Component Placement (Bottom View)
5
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet IRDCIP1201-A.PDF ] | |
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