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FAN5090 Datenblatt(PDF) 5 Page - Fairchild Semiconductor

Teilenummer FAN5090
Bauteilbeschribung  Two Phase Interleaved Synchronous Buck Converter for VRM 9.x Applications
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Hersteller  FAIRCHILD [Fairchild Semiconductor]
Direct Link  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

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PRODUCT SPECIFICATION
FAN5090
REV. 1.0.1 9/16/03
5
Notes:
1. As measured at the VFB (pin 24) sense point. For motherboard applications, the PCB layout should exhibit no more than
0.5m
Ω trace resistance between the converter’s output capacitors and the CPU. Remote sensing should be used for optimal
performance.
2. Using the VFB pin for remote sensing of the converter’s output at the load, the converter will be in compliance with VRM 9.x
specification.
Note:
1. 0 = VID pin is tied to GND.
1 = VID pin is pulled up internally to 5V.
OVP and OTP
Output Overvoltage Detect
2.1
2.2
2.3
V
Over Temperature Shutdown
130
140
150
°C
Over Temperature Hysteresis
40
°C
Table 1. Output Voltage Programming Codes
VID4
VID3
VID2
VID1
VID0
VOUT to CPU
11111
OFF
11110
1.100V
11101
1.125V
11100
1.150V
11011
1.175V
11010
1.200V
11001
1.225V
11000
1.250V
10111
1.275V
10110
1.300V
10101
1.325V
10100
1.350V
10011
1.375V
10010
1.400V
10001
1.425V
10000
1.450V
01111
1.475V
01110
1.500V
01101
1.525V
01100
1.550V
01011
1.575V
01010
1.600V
01001
1.625V
01000
1.650V
00111
1.675V
00110
1.700V
00101
1.725V
00100
1.750V
00011
1.775V
00010
1.800V
00001
1.825V
00000
1.850V
Electrical Specifications (continued)
(VCC = 12V, VID = [01111] = 1.475V, and TA = +25°C using circuit in Figure 2, unless otherwise noted.)
The
• denotes specifications which apply over the full operating temperature range.
Parameter
Conditions
Min.
Typ.
Max.
Units


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