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參數資料
| 型號： | FAN5071M |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 穩壓器 |
| 英文描述： | Analog IC |
| 中文描述： | SWITCHING CONTROLLER, 345 kHz SWITCHING FREQ-MAX, PDSO24 |
| 封裝： | SOIC-24 |
| 文件頁數： | 4/15頁 |
| 文件大小： | 424K |
| 代理商： | FAN5071M |
FAN5071
4
REV. 1.0.4 1/29/02
Notes:
1. Steady State Voltage Regulation includes Initial Voltage Setpoint, Droop, Output Ripple and Output Temperature Drift and is
measured at the converter’s VFB sense point.
2. As measured at the converter’s VFB sense point. For motherboard applications, the PCB layout should exhibit no more than
0.5m
trace resistance between the converter’s output capacitors and the CPU. Remote sensing should be used for optimal
performance.
3. Using the VFB pin for remote sensing of the converter’s output at the load, and the appropriate droop, the converter will be in
compliance with Intel’s VRM 8.5 specification. If Intel specifications on maximum plane resistance from the converter’s output
capacitors to the CPU are met, the specifications at the capacitors will also be met.
4. PWRGD will be high only if BOTH the linears and the switcher conditions are met. PWRGD will be low if EITHER condition is met.
Adjustable Linear Regulator
Output Voltage
Over Current Trip Level
VCLK Linear Regulator
Output Voltage
Over Current Trip Level
VAGP Linear Regulator
Output Voltage
Output Voltage
Over Current Trip Level
Common Functions
Oscillator Frequency
PWRGD Threshold
I
LOAD
≤
2A
1.188
1.212
80
1.236
V
%V
O
I
LOAD
≤
2A
2.375
2.5
80
2.625
V
%V
O
I
I
LOAD
≤
≤
2A, TYPEDET = 0V
2A, TYPEDET = OPEN
1.425
3.135
1.5
3.3
80
1.575
3.465
V
V
LOAD
%V
O
255
88
80
300
345
112
120
kHz
%
4
Switcher
Logic HIGH [V
Logic LOW [V
HIGH
→
VID
VID
+ 85mV]
–155mV]
PWRGD Delay Switcher
PWRGD Hysteresis Switcher
PWRGD Threshold
Regulators
LOW
6
25
80
μsec
mV
%V
4
Linear
All Outputs
out
Electrical Specifications
(V
CCA
= 5V, V
CCP
= 12V, V
The denotes specifications which apply over the full operating temperature range.
(Continued)
OUT
= 1.425V, and T
A
= +25°C using circuits in Figure 1, unless otherwise noted.)
Parameter
Conditions
Min.
Typ.
Max.
Units
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