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 13.2V Input / Programmable Output / 120A VRM 10.1
High efficiency means less power dissipation
Remote
on/off
Wide input range (10.3 13.2V)
2-Wire
Remote
sense
6 bit VID digital voltage programming.
Current monitor signal
Description
The G7NC-C2A Series is a non-isolated step down DC/DC converter providing up to 120A 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 12V source is available. Typical applications
include file servers, work stations and other computing applications.
Part Selection
Output
Voltage
Input
Voltage
Output Current
(Thermal Design)
Output Current
(Peak Current)
Typical
Efficiency
Model Number
0.83 1.6V
12V
105A
120A
TBD%
G7NC-C2160A
Input Specifications
Parameter
Min
Typ
Max
Notes
Input Voltage Range
10.3 VDC
13.2 VDC
Input Current (disabled)
17mA
Input Current (full load)
11A
Reflected Ripple Current
400mA rms
With 2 330uF, 25mOhm
capacitor and 200nH of input
inductance.
Output Specifications
Parameter
Min
Typ
Max
Notes
Output Current
0A
105A
120A
Thermal design
Peak current rating
Set Point Accuracy
1.27V
1.28V
1.29V
no load, excluding Adaptive
positioning, VID 101101
Adaptive Positioning
(Droop Impedance)
0.91
mOhm
Ripple and Noise
20mV
pk-pk, 0 to 20MHz Bandwidth
Full load. Note 3
Turn on Time
8mS
16mS
Transient Response
Deviation
Settling Time
TBD
TBD
di/dt = 5A/uS
Load step =50% of max load.
Remote Sense Compensation
0.3VDC
Output Capacitance
TBD uF
8290uF
TBD uF
Consult factory for
applications with external
capacitance outside of this
range
G7NC-C2A160 PRELIMINARY
2003 Bel Fuse Inc. Specifications subject to change without notice. 121903
CORPORATE FAR
EAST
EUROPE
Bel Fuse Inc.
Bel Fuse Ltd.
Bel Fuse Europe Ltd.
206 Van Vorst Street
8F/ 8 Luk Hop Street
Preston Technology Management Centre
Jersey City, NJ 07302
San Po Kong
Marsh Lane, Suite G7, Preston
Tel 201-432-0463
Kowloon, Hong Kong
Lancashire, PR1 8UD, U.K.
Fax 201-432-9542
Tel 852-2328-5515
Tel 44-1772-556601
www.belfuse.com
Fax 852-2352-3706
Fax 44-1772-888366
www.belfuse.com
www.belfuse.com
NON-ISOLATED DC/DC CONVERTERS
10.3 13.2V Input / Programmable Output / 120A VRM 10.1
General Specifications
Parameter
Specification
Switching Frequency
1.4MHz typical (fixed)
Dimensions
inches
mm
3.8 x 1.2 x 0.962
96.5 x 30.5 x 24.4
Weight TBD
Operating Temperature
0
C to 70C
Non-Operating Temperature
-40
C to 100C
Protection Features
Over current
Undervoltage
110% to 170% max Io
UVLO Vin < 10.0V
Remote On/Off
Active High
Efficiency (full load)
1.3V output
TBD%
Pin Connections
Row A
Row B
Pin
Function
Pin
Function
1 VIN-
54 VIN+
2 VIN-
53 VIN+
3 VIN-
52 VIN+
4 VID4
51 VID3
5 VID2
50 VID1
6 VID0
49 VID5
7 VO-sen+
48 VO-sen-
8 PWRGD
47 NC
9 OUTEN
46 LL0
10 Imon
45 LL1
11 NC
44 NC
12 NC
43 NC
13 VO+
42 VO+
14 VO+
41 VO+
15 VO+
40 VO+
16 VO-
39 VO-
17 VO-
38 VO-
18 VO-
37 VO-
19 VO+
36 VO+
20 VO+
35 VO+
21 VO+
34 VO+
22 VO-
33 VO-
23 VO-
32 VO-
24 VO-
31 VO-
25 VO+
30 VO+
26 VO+
29 VO+
27 VO+
28 VO+
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 13.2V Input / Programmable Output / 120A VRM 10.1
Voltage Identification (VID) Code
VID4 VID3 VID2 VID1 VID0 VID5
Vo
(VDC)
0 1 0 1 0 0 0.8375
0 1 0 0 1 1 0.85
0 1 0 0 1 0 0.8625
0 1 0 0 0 1 0.875
0 1 0 0 0 0 0.8875
0 0 1 1 1 1 0.9
0 0 1 1 1 0 0.9125
0 0 1 1 0 1 0.925
0 0 1 1 0 0 0.9375
0 0 1 0 1 1 0.95
0 0 1 0 1 0 0.9625
0 0 1 0 0 1 0.975
0 0 1 0 0 0 0.9875
0 0 0 1 1 1
1
0 0 0 1 1 0 1.0125
0 0 0 1 0 1 1.025
0 0 0 1 0 0 1.0375
0 0 0 0 1 1 1.05
0 0 0 0 1 0 1.0625
0 0 0 0 0 1 1.075
0 0 0 0 0 0 1.0875
1 1 1 1 1 1
Output Off
1 1 1 1 1 0
Output Off
1 1 1 1 0 1 1.1
1 1 1 1 0 0 1.1125
1 1 1 0 1 1 1.125
1 1 1 0 1 0 1.1375
1 1 1 0 0 1 1.15
1 1 1 0 0 0 1.1625
1 1 0 1 1 1 1.175
1 1 0 1 1 0 1.1875
1 1 0 1 0 1 1.2
1 1 0 1 0 0 1.2125
1 1 0 0 1 1 1.225
1 1 0 0 1 0 1.2375
1 1 0 0 0 1 1.25
1 1 0 0 0 0 1.2625
1 0 1 1 1 1 1.275
1 0 1 1 1 0 1.2875
1 0 1 1 0 1 1.3
1 0 1 1 0 0 1.3125
1 0 1 0 1 1 1.325
1 0 1 0 1 0 1.3375
1 0 1 0 0 1 1.35
1 0 1 0 0 0 1.3625
1 0 0 1 1 1 1.375
1 0 0 1 1 0 1.3875
1 0 0 1 0 1 1.4
1 0 0 1 0 0 1.4125
1 0 0 0 1 1 1.425
1 0 0 0 1 0 1.4375
1 0 0 0 0 1 1.45
1 0 0 0 0 0 1.4625
0 1 1 1 1 1 1.475
0 1 1 1 1 0 1.4875
0 1 1 1 0 1 1.5
0 1 1 1 0 0 1.5125
0 1 1 0 1 1 1.525
0 1 1 0 1 0 1.5375
0 1 1 0 0 1 1.55
0 1 1 0 0 0 1.5625
0 1 0 1 1 1 1.575
0 1 0 1 1 0 1.5875
0 1 0 1 0 1 1.6
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