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参数资料
| 型号： | MAX1917EEE+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 4/18页 |
| 文件大小： | 0K |
| 描述： | IC CNTRLR SYNC BUCK 16-QSOP |
| 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： | 4.5 V ~ 22 V |
| 输出数： | 2 |
| 输出电压： | 0.4 V ~ 5 V |
| 工作温度： | 0°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-QSOP |
| 包装： | 带卷 (TR) |
Tracking, Sinking and Sourcing, Synchronous Buck
Controller for DDR Memory and Termination Supplies
ELECTRICAL CHARACTERISTICS (continued)
(V+ = 12V, V EN/HSD = V DDR = 2.5V, C VL = 4.7μF, C VTTR = 1μF, C REF = 0.22μF, V FSEL = 0, ILIM = VL, PGND = LX = POK = GND,
BST = VL. Specifications are for T A = 0 ° C to +85 ° C . Typical values are at T A = +25 ° C, unless otherwise specified.)
PARAMETER
Logic VL Level
FSEL = VL
CONDITIONS
MIN
VL - 0.4
TYP
MAX
UNITS
V
EN/HSD LOGIC
EN/HSD Shutdown Current
Max I EN/HSD for V EN/HSD = 0.8V
0.5
3.0
μA
Logic High
Logic Low
VL = V+ = 4.5V to 5.5V, 100mV hysteresis
VL = V+ = 4.5V to 5.5V
1.45
0.8
V
V
POWER-OK OUTPUT
Upper VTT Threshold
Lower VTT Threshold
Upper VTTR Threshold
Lower VTTR Threshold
POK Output Low Level
POK Output High Leakage
I SINK = 2mA
V POK = 5.5V
110
86
110
86
112
88
112
88
114
90
114
90
0.4
5
%V DDR /
2
%V DDR /
2
%V DDR /
2
%V DDR /
2
V
μA
ELECTRICAL CHARACTERISTICS
(V+ = 12V, V EN/HSD = V DDR = 2.5V, C VL = 4.7μF, C VTTR = 1μF, C REF = 0.22μF, V FSEL = 0, ILIM = VL, PGND = LX = POK = GND,
BST = VL. Specifications are for T A = -40 ° C to +85 ° C , unless otherwise specified.) (Note 2)
PARAMETER
V+ Input Voltage Range
EN/HSD Input Voltage Range
VL = V+
Enabled
CONDITIONS
MIN
5.5
4.5
1.5
TYP
MAX
14.0
5.5
15.0
UNITS
V
V
V
DDR Input Voltage Range
V+ Supply Current
DDR Supply Current
EN/HSD Supply Current
VL Supply Current
V+ Shutdown Supply Current
DDR Shutdown Supply Current
VL Shutdown Supply Current
VTT = 2.0V
V EN/HSD = 2.5V
VL = V+ = 5.5V
EN/HSD = 0V
EN/HSD = 0V
VL = V+ = 5.5V
0
3.6
1.2
250
10
1.2
5
1
5
V
mA
μA
μA
mA
μA
μA
μA
VL Undervoltage Lockout
Threshold
Rising edge, hysteresis = 40mV
4.05
4.40
V
VTT
VTT Input Bias Current
VTT Feedback Voltage Range
VTT Feedback Voltage
Accuracy
V VTT = 2.5V
Overload range, V DDR = 1.8V
Overload range, V DDR = 3.6V
-0.15
0
49.5
49.5
0
1.8
50.5
50.5
μA
V
%V DDR
REFERENCE
Reference Output Voltage
Reference Load Regulation
V+ = VL = 4.5V to 5.5V, I REF = 0
V+ = VL = 5V, I REF = 0 to 50μA
1.98
2.02
10
V
mV
4
_______________________________________________________________________________________
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