C2012COG1H220J IRF [International Rectifier], C2012COG1H220J Datasheet

C2012COG1H220J

Manufacturer Part Number

C2012COG1H220J

Description

500kHz, 40A, 2-phase Synchronous Buck Converter using iP2001

Manufacturer

IRF [International Rectifier]

Datasheet

1.C2012COG1H220J.pdf (8 pages)

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Bonase Electronics (HK) Co., Limited

Part Number:

C2012COG1H220JT

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Overview

In this document, table 1 and figure 1 are provided to enable engineers to

easily evaluate the iP2001 in a 2-phase configuration that is capable of

providing up to 40A in a lab environment without airflow. Figures 3, 4, 5 and

6 and the complete bill of materials in table 2 are provided as a reference

design to enable engineers to very quickly and easily design a 2-phase

converter. In order to optimize this design to your specific requirements

refer to the data sheet for the controller listed in the bill of materials. A variety

of other controllers may also be used, but the design will require layout and

control circuit modifications.

Demoboard Quick Start Guide

Initial Settings:

Procedure for Connecting and Powering Up Demoboard:

1. Apply input voltage (5-12V) across V

2. Apply +5V logic power across +5V (TP19) and PGND (TP20).

3. Apply load across VOUT pads (TP11 & TP12) and PGND pads (TP15 & TP16)

4. Set ENABLE high.

5. Monitor switch node signals (optional) via TP7 & TP8.

6. Adjust load accordingly.

iP2001 Recommended Operating Conditions

(refer to the iP2001 datasheet for maximum operating conditions)

Input voltage:

Output voltage:

Output current:

Switching Freq:

the power-up sequence.

The output is set to 1.7V, but can be adjusted from 1.1 to 1.85V by setting

S1 according to the VID codes provided in Table 1. Droop control is set to 50mV at 40A, but can be adjusted by

following the instructions in the data sheet for the PWM controller.

The switching frequency per phase is set to 500kHz with the frequency set resistor R4. This creates an effective

output frequency of 1MHz. The graph in figure 1 shows the relationship between R4 and the switching frequency

per phase. This frequency may be adjusted by changing R4 according to this graph; however, extreme changes

from the 500kHz set point may require redesigning the control loop and adjusting the values of input and output

capacitors. Also, refer to the SOA graph in the iP2001 datasheet for maximum operating current at different

frequencies.

IRDCiP2001-A, 500kHz, 40A, 2-phase Synchronous Buck

EFERENCE

International Rectifier

5 - 12V

1.1 - 1.85V

20A per phase, 40A total for 2-phase demo board.

500kHz per phase, 1MHz effective output frequency.

Converter using iP2001

(TP18) and PGND (TP15). Note that this input source must be applied first during

•

233 Kansas Street, El Segundo, CA 90245 USA

ESIGN

07/19/02

ESIGN

IRDCiP2001-A

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C2012COG1H220J Summary of contents

Page 1

R R EFERENCE EFERENCE International Rectifier IRDCiP2001-A, 500kHz, 40A, 2-phase Synchronous Buck Converter using iP2001 Overview In this document, table 1 and figure 1 are provided to enable engineers to easily evaluate the iP2001 in a 2-phase configuration that is ...

Page 2

IRDCiP2001-A 1000 100 10 1 100 Figure vs. Frequency (per Phase) VID4 VID3 VID2 VID1 VID0 ...

Page 3

OUT Figure 2 - Typical Efficiency vs. Current Refer to the following application notes for detailed guidelines and suggestions when implementing iPOWIR Technology products: AN-1028: Recommended Design, Integration and Rework Guidelines for ...

Page 4

IRDCiP2001 COMP Fig Reference Design Schematic www.irf.com ...

Page 5

Fig Component Placement Top Layer Fig Component Placement Bottom Layer www.irf.com IRDCiP2001-A 5 ...

Page 6

... Output Current (A) Fig Current (per Phase) ISEN Mfr. Mfr. Part No. 0805 TDK C2012X7R1H223K 1210 TDK C3225X5R1C106K 2220 TDK C5750X5R0J107K 0805 TDK C2012COG1H220J 0805 TDK C2012X7R1H103K 0603 TDK C1608X7R1H472K SMT Panasonic ETQP6F0R6BFA 0805 ROHM MCR10EZHJ102 0805 ROHM MCR10EZHJ000 0805 ROHM MCR10EZHJ103 ...

Page 7

Sequencing Tip It’s important to have proper sequencing between the control IC and the iP2001 blocks. This assures the soft-start routine of the IC will properly ramp-up the output voltage during a power-up or restart from shut down event. Figure ...

Page 8

IRDCiP2001-A Use of this design for any application should be fully verified by the customer. International Rectifier cannot guarantee suitability for your applications, and is not liable for any result of usage for such applications including, without limitation, personal or ...

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