BEL GRNC

NON-ISOLATED DC/DC CONVERTERS
10.3 V - 13.2 V Input / Programmable Output / 120 A VRM 10.1
Compatible
Sep.1, 2011
Bel Power Inc.,
GRNC-C2A160
RoHS Compliant
a subsidiary of Bel Fuse Inc.
PRELIMINARY

High efficiency means less power dissipation

Remote on/off

Wide input range (10.3 V - 13.2 V)

Wider input range available – consult factory

2-Wire Remote sense

6 bit VID digital voltage programming.

Class2,Category2,Non- Non-Isolated DC/DC Converter (refer to
IPC-9592)
Rev.B
Description
The GRNC-C2A Series is a non-isolated step down dc/dc converter providing up to 120 A of output current and
designed to be compatible to the Intel VRM 10.1 specification. Standard features include current monitor,
remote on/off, over current protection, remote sense and a power good signal. This product also makes use of
adaptive positioning to improve transient response performance. These products may be used almost
anywhere low-voltage silicon is being employed and a nominal 12 Vdc source is available. Typical applications
include file servers, work stations and other computing applications.
Part Selection
Output Voltage
Input Voltage
0.83 V - 1.6 V
12 V
Output Current
(Thermal Design)
105 A
Output Current
(Peak Current)
120 A
Typical
Efficiency
82%
Model Number
G7NC-C2A160
Input Specifications
Parameter
Input Voltage Range
Input Current (disabled)
Input Current (full load)
Min
10.3 V
-
Typ
17 mA
-
Max
13.2 V
23 A
Reflected Ripple Current
-
-
400 mA
Min
0A
-
Typ
-
Max
105 A
120 A
1.27 V
1.28 V
1.29 V
Adaptive Positioning
(Droop Impedance)
-
1.25 mOhm
-
Ripple and Noise
-
20 mV
-
Turn on Time
-
8 mS
16 mS
-
90mV
100mV
-
Remote Sense Compensation
-
-
±0.3 Vdc
Output Capacitance
-
8290 uF
-
Notes
With 2 330 uF, 25 mOhm capacitor and
200 nH of input inductance.
Output Specifications
Parameter
Output Current
Set Point Accuracy
Transient Response
Deviation
Settling Time
Notes
Thermal design
Peak current rating
no load, excluding Adaptive positioning,
VID 101101
pk-pk,0 to 20MHz Bandwidth full load.
Note 3
di/dt = 5 A/uS
Load step =50% of max load.
Consult factory for applications with
external capacitance outside of this
range
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302  Tel 201-432-0463  Fax 201-432-9542  www.belfuse.com
NON-ISOLATED DC/DC CONVERTERS
10.3 V - 13.2 V Input / Programmable Output / 120 A VRM 10.1
Compatible
Sep.1, 2011
Bel Power Inc.,
a subsidiary of Bel Fuse Inc.
General Specifications
Parameter
Min
Typ
Max
Switching Frequency
Dimensions
Inches (L × W × H)
Millimeters (L × W × H)
-
1.4 MHz
-
0 C
-40 C
3.8 x 1.2 x 0.962
96.5 x 30.5 x 24.4
53.4g
-
70 C
100 C
-
110% to 170% max Io
UVLO Vin < 10.0V
82%
-
Weight
Operating Temperature
Non-Operating Temperature
Protection Features
Over current
Under-voltage
Remote On/Off
Efficiency (full load)
Notes
fixed
Active High
1.3 V output , 105 A load
Voltage Identification (VID) Code
VID4
VID3
VID2
VID1
VID0
VID5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Vo
(VDC)
0.8375
0.85
0.8625
0.875
0.8875
0.9
0.9125
0.925
0.9375
0.95
0.9625
0.975
0.9875
1
1.0125
1.025
1.0375
1.05
1.0625
1.075
1.0875
Output Off
Output Off
1.1
1.1125
1.125
1.1375
1.15
1.1625
1.175
1.1875
1.2
VID4
VID3
VID2
VID1
VID0
VID5
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Vo
(VDC)
1.2125
1.225
1.2375
1.25
1.2625
1.275
1.2875
1.3
1.3125
1.325
1.3375
1.35
1.3625
1.375
1.3875
1.4
1.4125
1.425
1.4375
1.45
1.4625
1.475
1.4875
1.5
1.5125
1.525
1.5375
1.55
1.5625
1.575
1.5875
1.6
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302  Tel 201-432-0463  Fax 201-432-9542  www.belfuse.com
NON-ISOLATED DC/DC CONVERTERS
10.3 V - 13.2 V Input / Programmable Output / 120 A VRM 10.1
Compatible
Sep.1, 2011
Bel Power Inc.,
a subsidiary of Bel Fuse Inc.
Mechanical Outline
Pin
Function
Pin
Function
Pin
Function
Pin
Function
Pin
1
GND
2
GND
3
4
Function
12
N/C
23
GND
34
+VOUT
45
N/C
13
+VOUT
24
GND
35
+VOUT
46
LLO
GND
14
+VOUT
25
+VOUT
36
+VOUT
47
N/C
VID4
15
+VOUT
26
+VOUT
37
GND
48
-SENSE
5
VID2
16
GND
27
+VOUT
38
GND
49
VID5
6
VID0
17
GND
28
+VOUT
39
GND
50
VID1
7
+SENSE
18
GND
29
+VOUT
40
+VOUT
51
VID3
8
PWRGD
19
+VOUT
30
+VOUT
41
+VOUT
52
+VIN
9
OUTEN
20
+VOUT
31
GND
42
+VOUT
53
+VIN
10
IMON
21
+VOUT
32
GND
43
N/C
54
+VIN
11
N/C
22
GND
33
GND
44
N/C
Notes:
1. Mechanical key between pins 3 & 4, 12 & 13, 21 & 22, 33 & 34, 42 & 43, and 51 & 52
2. Contact factory for recommended mating connector.
3. Measured with 14 X 560u 7mOhm ESR Al Poly and 45 X 10u 10mOHm ESR ceramic capacitors on output.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302  Tel 201-432-0463  Fax 201-432-9542  www.belfuse.com
NON-ISOLATED DC/DC CONVERTERS
10.3 V - 13.2 V Input / Programmable Output / 120 A VRM 10.1
0.1 Compatible
Sep.1, 2011
Bel Power Inc.,
a subsidiary of Bel Fuse Inc.
Revision History
Date
Revision
2011-09-01
B
Changes Detail
Approval
Ada the mechanical drawing.
SY Qian
RoHS Compliance
Complies with the European Directive 2002/95/EC, calling for the elimination of lead and
other hazardous substances from electronic products.
2011 Bel Fuse Inc. Specifications subject to change without notice. 090111
CORPORATE
FAR EAST
EUROPE
Bel Fuse Inc.
206 Van Vorst Street
Jersey City, NJ 07302
Tel 201-432-0463
Fax 201-432-9542
www.belfuse.com
Bel Fuse Ltd.
8F/ 8 Luk Hop Street
San Po Kong
Kowloon, Hong Kong
Tel 852-2328-5515
Fax 852-2352-3706
www.belfuse.com
Bel Fuse Europe Ltd.
Preston Technology Management Centre
Marsh Lane, Suite G7, Preston
Lancashire, PR1 8UD, U.K.
Tel 44-1772-556601
Fax 44-1772-888366
www.belfuse.com