参数资料
型号: ISL6312AIRZ
厂商: Intersil
文件页数: 7/35页
文件大小: 0K
描述: IC CTRLR PWM 4PHASE BUCK 48-QFN
标准包装: 43
应用: 控制器,Intel VR10、VR11、AMD CPU
输入电压: 5 V ~ 12 V
输出数: 1
输出电压: 0.38 V ~ 1.6 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 48-VFQFN 裸露焊盘
供应商设备封装: 48-QFN(7x7)
包装: 管件
ISL6312A
Electrical Specifications
Recommended Operating Conditions, Unless Otherwise Specified. (Continued)
MIN
MAX
PARAMETER
TEST CONDITIONS
(Note 4)
TYP
(Note 4) UNITS
DAC Input Low Voltage (AMD)
DAC Input High Voltage (AMD)
-
1.0
-
-
0.6
-
V
V
PIN-ADJUSTABLE OFFSET
OFS Sink Current Accuracy (Negative Offset)
OFS Source Current Accuracy (Positive Offset)
R OFS = 10k Ω from OFS to GND
R OFS = 30k Ω from OFS to VCC
37.0
50.5
40.0
53.5
43.0
56.5
μ A
μ A
ERROR AMPLIFIER
DC Gain
Gain-Bandwidth Product
Slew Rate
Maximum Output Voltage
Minimum Output Voltage
R L = 10k to ground, (Note 3)
C L = 100pF, R L = 10k to ground, (Note 3)
C L = 100pF, load = ±400μA, (Note 3)
Load = 1mA
Load = -1mA
-
-
-
3.90
-
96
20
8
4.20
1.30
-
-
-
-
1.5
dB
MHz
V/ μ s
V
V
SOFT-START RAMP
Soft-Start Ramp Rate
VR10/VR11, R S = 100k Ω
-
1.563
-
mV/μs
Adjustment Range of Soft-Start Ramp Rate (Note 3)
AMD
-
0.625
2.063
-
-
6.25
mV/μs
mV/μs
PWM OUTPUT
PWM Output Voltage LOW Threshold
PWM Output Voltage HIGH Threshold
Iload = ±500 μ A
Iload = ±500 μ A
-
4.5
-
-
0.5
-
V
V
CURRENT SENSING
Current Sense Resistance, R ISEN
Sensed Current Tolerance
T = +25°C
ISEN1+ = ISEN2+ = ISEN3+ = ISEN4+ = 80μA
297
76
300
80
303
84
Ω
μ A
OVERCURRENT PROTECTION
Overcurrent Trip Level - Average Channel
Overcurrent Trip Level - Individual Channel
Normal operation
Dynamic VID change
Normal operation
Dynamic VID change (Note 3)
110
143
150
209.4
125
163
177
238
140
183
204
266.6
μ A
μ A
μ A
μ A
PROTECTION
Undervoltage Threshold
Undervoltage Hysteresis
Overvoltage Threshold During Soft-Start
Overvoltage Threshold (Default)
VSEN falling
VSEN rising
VR10/VR11
AMD
VR10/VR11, OVPSEL tied to ground, VSEN rising
55
-
1.24
2.13
VDAC +
60
10
1.28
2.20
VDAC +
65
-
1.32
2.27
VDAC +
%VID
%VID
V
V
V
150mV
175mV
200mV
AMD, OVPSEL tied to ground, VSEN rising
VDAC +
225mV
VDAC +
250mV
VDAC +
275mV
V
Overvoltage Threshold (Alternate)
OVPSEL tied to +5V, VSEN rising
VDAC +
VDAC +
VDAC +
V
325mV
350mV
375mV
Overvoltage Hysteresis
VSEN falling
-
100
-
mV
SWITCHING TIME (Note 3)
UGATE Rise Time
t RUGATE; V PVCC = 12V, 3nF load, 10% to 90%
-
26
-
ns
7
FN9290.5
February 1, 2011
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