ISL6562EVAL1 Intersil, ISL6562EVAL1 Datasheet - Page 11

• Manufacturer Part Number: ISL6562EVAL1
• Description: EVALUATION BOARD ISL6562
• Manufacturer: Intersil

Specifications of ISL6562EVAL1

• Main Purpose: Special Purpose DC/DC, VRM Supply
• Outputs And Type: 1, Non-Isolated
• Power - Output: 60W
• Voltage - Output: 1.5V
• Current - Output: 40A
• Voltage - Input: 5V, 12V
• Regulator Topology: Buck
• Frequency - Switching: 400kHz
• Board Type: Fully Populated
• Utilized Ic / Part: ISL6562
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without
notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and
reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result
from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.
L. gm Amplifier Output Load Network:
M. V
V
REF = 3V
15mV X gm Amplifier gain = 15mv x 19.1 = 287mV
V
programed DAC voltage
Added output voltage of the gm amplifier will be:
SET
V SET
OUT
R
R
U
B
Computation for No Load Voltage = DAC +15mV:
, no load voltage to be set 15mV above
=
=
To COMP pin,
=
this voltage is V
1V
1V
1V
All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems.
R U R B
R B
R B
+
+
+
||
I RIPPLE R SENSE ni
--------------------------------------------------------------------- -
8A 5mΩ 12.5
---------------------------------------------
250mV
Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality
=
=
--------------------------------------- -
V REF V SET
-----------------------------
3V 1.25V
×
For information regarding Intersil Corporation and its products, see www.intersil.com
=
1.25V
–
V SET
R L
2
+
SET
–
×
287mV
11
×
2
R U
R U
×
20.9k
+
=
×
=
=
287mV
R U
V REF
---------------- -
V SET
--------------- -
1.25V
1.536V
×
3V
=
14.9k
+
×
×
ISL6560/62 Evaluation Board
287mV
R L
8.7k
=
20.9k
N. gm Amplifier Output Load Network:
O. C
V
C
R
REF = 3V
C
C
C
V
and R
R
R
REF = 3V
U
B
C C
To COMP pin,
R
R
this voltage is V
C
U
B
To COMP pin
=
R U R B
Selection:
R B
R B
R OUT C OUT
----------------------------------------- -
||
R
=
=
R U R B
C
--------------------------------------- -
V REF V SET
-----------------------------
3V 1.54V
= 0.5 x R
R L
×
=
||
1.54V
–
V SET
R L
SET
–
=
R L
L
R U
=
R U
×
= 0.5 x 8.7k = 4.35k
16.9k
1.63mΩ 9mF
---------------------------------------- -
=
×
C
=
R U
V REF
---------------- -
V SET
C
--------------- -
1.54V
AC Equivalent
3V
8.7k
=
R
C
17.8k
×
×
×
R L
R
8.7k
L
COMP pin
=
=
1.68nF
16.9K