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参数资料
| 型号： | VRNB-40A18B |
| 厂商： | BEL FUSE INC |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| 封装： | ROHS COMPLIANT PACKAGE-32 |
| 文件页数： | 1/3页 |
| 文件大小： | 107K |
| 代理商： | VRNB-40A18B |
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
12V Input / Programmable Output / 40A VRM 9.0 Compatible
High efficiency means less power dissipation
Remote on/off
2-Wire Remote sense
Optional 5 bit voltage programming schemes
o
Intel VRM 9.x compatible 1.1V to 1.85V
o
Motorola compatible 1.0V to 1.68V
Adaptive voltage positioning
Description
The VRNB-40A Series are non-isolated step down dc/dc converters providing up to 40A of output current and
designed to be compatible to the Intel VRM 9.0 / 9.1 VID codes. Standard features include 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 are specifically design to power a wide variety of
high performance microprocessors but 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.
Input Specifications
Parameter
Min
Typ
Max
Notes
Input Voltage Range
10.8 VDC
13.2 VDC
Input Current (disabled)
30mA
Input Current (full load)
8A
Reflected Ripple Current
150mA rms
With 100uF, 25mOhm
capacitor and 200nH of input
inductance.
Output Specifications
Parameter
Min
Typ
Max
Notes
Output Current
0A
40A
Set Point Accuracy
1.76V
1.80
1.82
no load, excluding Adaptive
positioning, VID 00000
Adaptive Positioning
(Droop Impedance)
3.5 mOhm
Ripple and Noise
30mV
pk-pk, 0 to 20MHz Bandwidth
Full load with two external
560uF oscon capacitors on
output.
Turn on Time
8mS
16mS
Transient Response
Deviation
Settling Time
90mV
175uS
di/dt = 5A/uS
Load step =50% of max load.
Cout = two 820uF OSCON
Remote Sense Compensation
±0.3VDC
Output Capacitance
1200uF
20,000uF
For applications requiring
higher or lower output
capacitance please consult
factory.
VRNB-40A180
PRELIMINARY
RoHS Compliant
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