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參數資料
| 型號： | ISL6548A |
| 廠商： | Intersil Corporation |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | 500-mA Peak Step-Up, Step-Down, Inverting Switching Voltage Regulator 14-PDIP 0 to 70 |
| 中文描述： | ACPI的穩(wěn)壓器/雙通道DDR內存控制器系統 |
| 文件頁數： | 5/16頁 |
| 文件大小： | 494K |
| 代理商： | ISL6548A |
5
FN9189.1
July 22, 2005
Absolute Maximum Ratings
Thermal Information
Thermal Resistance (Typical, Notes 1, 2)
θ
JA
(°C/W)
QFN Package . . . . . . . . . . . . . . . . . . .
Maximum Junction Temperature (Plastic Package) . . . . . . . .150°C
Maximum Storage Temperature Range. . . . . . . . . . .-65°C to 150°C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . .300°C
5VSBY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GND - 0.3V to +7V
P12V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GND - 0.3V to +14V
Absolute Boot Voltage, V
BOOT
. . . . . . . . . . . . . . . . . . . . . . . +15.0V
Upper Driver Supply Voltage, V
BOOT
- V
PHASE
. . . . . . . . . . . +6.0V
All other Pins . . . . . . . . . . . . . . . . . . . . GND - 0.3V to 5VCC + 0.3V
ESD Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TBD
Recommended Operating Conditions
Supply Voltage on 5VSBY . . . . . . . . . . . . . . . . . . . . . . . . +5V ±10%
Supply Voltage on P12V . . . . . . . . . . . . . . . . . . . . . . . . +12V ±10%
Ambient Temperature Range. . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
Junction Temperature Range. . . . . . . . . . . . . . . . . . . . 0°C to 125°C
θ
JC
(°C/W)
4
32
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTES:
1.
θ
JA
is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See
Tech Brief TB379.
2.
For
θ
JC
, the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications
Recommended Operating Conditions, Unless Otherwise Noted. Refer to Block and Simplified Power System
Diagrams and Typical Application Schematics
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNITS
5VSBY SUPPLY CURRENT
Nominal Supply Current
I
CC_S0
S3# & S5# HIGH, UGATE/LGATE Open
5.5
7.0
8.0
mA
I
CC_S5
S5# LOW, S3# Don’t Care, UGATE/LGATE Open
-
700
850
μ
A
POWER-ON RESET
Rising 5VSBY POR Threshold
4.10
-
4.45
V
Falling 5VSBY POR Threshold
3.60
-
3.95
V
Rising P12V POR Threshold
10.0
-
10.5
V
Falling P12V POR Threshold
8.80
-
9.75
V
OSCILLATOR AND SOFT-START
PWM Frequency
f
OSC
220
250
280
kHz
Ramp Amplitude
V
OSC
-
1.5
-
V
Soft-Start Interval
t
SS
6.5
8.2
9.5
ms
REFERENCE VOLTAGE
Reference Voltage
V
REF
-
0.800
-
V
System Accuracy
-2.0
-
+2.0
%
V
DDQ
AND V
GMCH
PWM CONTROLLER ERROR AMPLIFIERS
DC Gain
Guaranteed By Design
-
80
-
dB
Gain-Bandwidth Product
GBWP
15
-
-
MHz
Slew Rate
SR
-
6
-
V/
μ
s
CONTROL I/O (S3#, S5#)
LOW Level Input Threshold
0.75
-
-
V
HIGH Level Input Threshold
-
-
2.2
V
ISL6548A
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