BEL G7NB

NON-ISOLATED DC/DC CONVERTERS
4.5 –15V Input / Programmable Output / 60A VRM 9.0
G7NB-60E180 PRELIMINARY
•
High efficiency means less power dissipation
•
Remote on/off
•
Wide input range (4.5 – 15V)
•
2-Wire Remote sense
•
5 bit VID digital voltage programming.
•
Single wire current sharing
Description
The G7NB-60E Series is a non-isolated step down DC/DC converters providing up to 60A of output current and
designed to be compatible to the Intel VRM 9.0 specification. Standard features include current share, remote
on/off, over current protection, remote sense and a power good signal. Optional features include adjustable
undervoltage lockout, output current monitor and output trim. This product also makes use of adaptive
positioning to improve transient response performance. These products may be used almost anywhere lowvoltage silicon is being employed and a nominal 5V or 12V source is available. Typical applications include file
servers, work stations and other computing applications.
Input Specifications
Parameter
Input Voltage Range
Min
4.5 VDC
Input Current (disabled)
Input Current (full load)
Reflected Ripple Current
Typ
Max
14.4 VDC
Notes
Output current is derated to
40A at 5V input due to
connector rating for Vin pins.
17mA
11A
400mA rms
With 100uF, 25mOhm
capacitor and 200nH of input
inductance.
Output Specifications
Parameter
Voltage Adjustability
Output Current
Set Point Accuracy
Min
-15%
0A
1.81V
Adaptive Positioning
(Droop Impedance)
Typ
1.83
Notes
no load, excluding Adaptive
positioning, VID 00000
1 mOhm
Ripple and Noise
20mV
Turn on Time
Transient Response
8mS
Deviation
Settling Time
pk-pk, 0 to 20MHz Bandwidth
Full load with two external
560uF oscon capacitors on
output.
16mS
di/dt = 5A/uS
Load step =50% of max load.
90mV
175uS
Remote Sense Compensation
Output Capacitance
Max
+15%
60A
1.85
±0.3VDC
1200uF
20,000uF
For applications requiring
higher or lower output
capacitance please consult
factory.
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
4.5 - 15V Input / Programmable Output / 60A VRM 9.0
General Specifications
Pin Connections
Parameter
Switching Frequency
Dimensions
Specification
800kHz typical (fixed)
inches
mm
Row A
Pin
3.8 x 2.3 x .57
96.5 x 58.4 x 14.4
TBD
0°C to 70°C
-40°C to 100°C
Weight
Operating Temperature
Non-Operating Temperature
Protection Features
Over current
Undervoltage
Remote On/Off
Efficiency (full load)
1.85V output
110% to 170% max Io
UVLO Vin < 9.5V
Active High
86%
Voltage Identification (VID) Code
VID4
VID3
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
VID2
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
0
0
0
0
0
VID1
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
1
0
0
0
0
VID0
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
Vo (VDC)
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
0
Output Off
1.1
1.125
1.15
1.175
1.2
1.225
1.25
1.275
1.3
1.325
1.35
1.375
1.4
1.425
1.45
1.475
1.5
1.525
1.55
1.575
1.6
1.625
1.65
1.675
1.7
1.725
1.75
1.775
1.8
1.825
1.85
Function
Row B
Pin
Function
1 VIN+
62 VIN2 VIN+
61 VIN3 VIN+
60 VIN4 VIN+
59 VIN5 Reserved
58 VRM-pres
6 key
57 VID4
7 VID3
56 VID2
8 VID1
55 VID0
9 TRIM
54 Ishare
10 PWRGD
53 OUTEN
11 VO-sen52 VO-sen+
12 UVLO_SET
51 Reserved
13 VO50 VO+
14 VO+
49 VO+
15 VO48 VO16 VO+
47 VO+
17 VO46 VO18 VO+
45 VO+
19 VO44 VO20 VO+
43 VO+
21 VO42 VO22 VO+
41 VO+
23 VO40 VO24 VO+
39 VO+
25 VO38 VO26 VO+
37 VO+
27 VO36 VO28 VO+
35 VO+
29 VO34 VO30 VO+
33 VO+
31 VO32 VONotes:
1. Mechanical key between pins 11 & 12 and 51 & 52
2. Pin 6 is electrical key.
2002 Bel Fuse Inc. Specifications subject to change without notice. 010402
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