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| 型号： | MAX8632ETI+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 3/29页 |
| 文件大小： | 0K |
| 描述： | IC PWR SUPPLY DDR 28-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 应用： | 控制器，DDR |
| 输入电压： | 2 V ~ 28 V |
| 输出数： | 1 |
| 输出电压： | 1.8V，2.5V，0.7 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-WFQFN 裸露焊盘 |
| 供应商设备封装： | 28-TQFN-EP（5x5） |
| 包装： | 带卷 (TR) |
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Integrated DDR Power-Supply Solution for
Desktops, Notebooks, and Graphic Cards
ELECTRICAL CHARACTERISTICS (continued)
(V IN = +15V, V DD = AV DD = V SHDN = STBY = V BST = V ILIM = 5V, V OUT = V REFIN = V VTTI = 2.5V, UVP/OVP = TP0 = FB = SKIP
= GND, PGND1 = PGND2 = LX = GND, TON = OPEN, V VTTS = V VTT , T A = -40°C to +85°C, unless otherwise noted. Typical values
are at T A = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
REFERENCE
Reference Voltage
V REF
AV DD = 4.5V to 5.5V; I REF = 0
1.98
2
2.02
V
Reference Load Regulation
REF Undervoltage Lockout
I REF = 0 to 50μA
V REF rising
Hysteresis
1.93
300
0.01
V
V
mV
FAULT DETECTION
OVP Trip Threshold
(Referred to Nominal V OUT )
UVP Trip Threshold
(Referred to Nominal V OUT )
POK1 Trip Threshold
(Referred to Nominal V OUT )
POK2 Trip Threshold
UVP/OVP = AV DD
Lower level, falling edge, 1% hysteresis
Upper level, rising edge, 1% hysteresis
Lower level, falling edge, 1% hysteresis
112
65
87
107
87.5
116
70
90
110
90
120
75
93
113
92.5
%
%
%
(Referred to Nominal V VTTS
%
and V VTTR )
Upper level, rising edge, 1% hysteresis
107.5
110
112.5
POK2 Disable Threshold
(Measured at REFIN)
V REFIN rising (hysteresis = 75mV typ)
0.7
0.9
V
UVP Blanking Time
From rising edge of SHDN
10
20
40
ms
OVP, UVP, POK_ Propagation
Delay
10
μs
POK_ Output Low Voltage
POK_ Leakage Current
I SINK = 4mA
V POK_ = 5.5V, V FB = 0.8V, V VTTS = 1.3V
0.3
1
V
μA
ILIM Adjustment Range
ILIM Input Leakage Current
V ILIM
0.25
2.00
0.1
V
μA
Current-Limit Threshold (Fixed)
PGND1 to LX
45
50
55
mV
Current-Limit Threshold
(Adjustable) PGND1 to LX
Current-Limit Threshold (Fixed,
Negative Direction) PGND1 to LX
V ILIM = 2V
SKIP = AV DD
170
-75
200
-60
235
-45
mV
mV
Current-Limit Threshold
(Adjustable, Negative Direction)
SKIP = AV DD , V ILIM = 2V
-250
mV
PGND1 to LX
Zero-Crossing Detection
Threshold PGND1 to LX
Thermal-Shutdown Threshold
Thermal-Shutdown Hysteresis
3
+160
15
mV
°C
°C
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