FAN5250 Fairchild Semiconductor, FAN5250 Datasheet - Page 5

• Manufacturer Part Number: FAN5250
• Description: Mobile Processor Core-Voltage Regulator
• Manufacturer: Fairchild Semiconductor

Electrical Specifications
(VCC = 5V, VIN = 5V–24V, and T
unless otherwise noted)
REV. 1.1.6 3/12/03
Parameter
Power Supplies
VCC Current
VIN Current
UVLO Threshold
Regulator / Control Functions
Output Voltage
Initial Accuracy
Static Load Regulation
Error Amplifier Gain
Error Amplifier GBW
Error Amplifier Slew Rate
ILIM Voltage
Over-voltage Threshold
Over-voltage Protection Delay
Under-voltage Shutdown
Under-voltage Delay
EN, input threshold
Output Drivers
HDRV Output Resistance
LDRV Output Resistance
Oscillator
Frequency
Ramp Amplitude, pk-pk
Ramp Offset
Ramp Gain
Reference, DAC and Soft-Start
VID input threshold
VID pull-up current
DAC output accuracy
A
= recommended operating ambient temperature range using circuit of Figure 1,
Conditions
Shut-down (EN = 0)
Shut-down (EN = 0)
Falling
Voltage VID
change
Logic HIGH
Sinking
Sinking
FREQ = HIGH
FREQ = LOW
Logic HIGH
Operating, C
Operating
Rising VCC
per Table 1. Output
R
Disabled during VID code
Logic LOW
Sourcing
Sourcing
VIN = 16V
Logic LOW
to internal 2.5V reference
ILIM
= 30K Ω
Ramp amplitude
VIN
L
= 10pF
Min.
0.89
1.62
255
510
4.3
4.1
0.6
1.9
1.6
1.2
72
-1
-2
-1
2
Typ.
4.65
4.35
1.95
300
600
2.7
2.7
3.8
1.6
3.8
0.8
0.5
12
86
75
12
6
1
2
Max.
4.75
4.45
1.75
0.91
1.21
345
690
125
3.2
2.0
3.2
1.6
1.2
1.5
30
20
78
1
1
2
5
3
5
1
Units
% VID
% VID
% VID
FAN5250
mV/V
V/µS
MHz
KHz
KHz
mA
µA
µA
µA
dB
µS
µS
µA
%
Ω
Ω
Ω
Ω
V
V
V
V
V
V
V
V
V
V
V
5