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參數(shù)資料
| 型號： | ADP3157 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 5-Bit Programmable Synchronous Controller for Pentium III Processors |
| 中文描述： | 5位可編程同步控制器，用于奔騰III處理器 |
| 文件頁數(shù)： | 5/12頁 |
| 文件大?。?/td> | 173K |
| 代理商： | ADP3157 |
REV. A
–2–
ADP3157–SPECIFICATIONS (0 C ≤T
A
≤ +70 C, V
CC = 12 V, VIN = 5 V, unless otherwise noted)
1
Parameter
Symbol
Conditions
Min
Typ
Max
Units
OUTPUT ACCURACY
1.3 V Output Voltage
VO
(Figure 13)
1.283
1.3
1.317
V
2.0 V Output Voltage
1.980
2.0
2.020
V
3.5 V Output Voltage
3.465
3.5
3.535
V
OUTPUT VOLTAGE LINE
V
O
ILOAD = 10 A (Figure 2)
REGULATION
VIN = 4.75 V to 5.25 V
0.05
%
INPUT DC SUPPLY CURRENT
2
Normal Mode
IQ
VSD = 0.6 V
4.1
5.5
mA
Shutdown
TA = +25°C, VID Pins Floating
140
250
A
CURRENT SENSE THRESHOLD
VOLTAGE
VSENSE(TH)
VSENSE– Forced to VOUT – 3%
125
145
165
mV
VID0–VID4 THRESHOLD
VID(TH)
Low
0.6
V
High
2.0
V
VID0–VID4 INPUT CURRENT
IVID
VID = 0 V
110
220
A
VID0–VID4 PULL-UP RESISTANCE
RVID
20
30
k
CT PIN DISCHARGE CURRENT
I12
TA = +25°C
VOUT in Regulation
65
A
VOUT = 0 V
2
10
A
OFF-TIME
tOFF
CT = 150 pF
1.8
2.45
3.2
s
DRIVER OUTPUT TRANSITION
tR, tF
CL = 7000 pF (Drive 1, 2)
TIME
TA = +25°C
120
200
ns
POSITIVE POWER GOOD TRIP POINT
3
VPWRGD
% Above Output Voltage
5
8
%
NEGATIVE POWER GOOD TRIP POINT3
VPWRGD
% Below Output Voltage
–8
–5
%
POWER GOOD RESPONSE TIME
tPWRGD
500
s
CROWBAR TRIP POINT
VCROWBAR
% Above Output Voltage
9
15
%
ERROR AMPLIFIER
OUTPUT IMPEDANCE
ROERR
275
k
ERROR AMPLIFIER
TRANSCONDUCTANCE
gm(ERR)
2.2
mmho
ERROR AMPLIFIER MINIMUM
OUTPUT VOLTAGE
VCMPMIN
VSENSE+ Forced to VOUT + 3%
0.8
V
ERROR AMPLIFIER MAXIMUM
OUTPUT VOLTAGE
VCMPMAX
VSENSE+ Forced to VOUT – 3%
2.4
V
ERROR AMPLIFIER BANDWIDTH –3 dB
BWERR
CMP = Open
500
kHz
SHUTDOWN (SD) PIN
Low Threshold
SDL
Part Active
0.6
V
High Threshold
SDH
Part in Shutdown
2.0
V
Input Current
SDIC
10
A
NOTES
1All limits at temperature extremes are guaranteed via correlation using standard Statistical Quality Control (SQC) methods.
2Dynamic supply current is higher due to the gate change being delivered to the external MOSFETs.
3The trip point is for the output voltage coming into regulation.
Specifications subject to change without notice.
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相關代理商/技術參數(shù) |
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| ADP3157J | 制造商:Analog Devices 功能描述: |
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