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參數(shù)資料
| 型號： | MAX1917EEE |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Tracking, Sinking and Sourcing, Synchronous Buck Controller for DDR Memory and Termination Supplies |
| 中文描述： | SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | QSOP-16 |
| 文件頁數(shù)： | 5/18頁 |
| 文件大小： | 336K |
| 代理商： | MAX1917EEE |
M
Tracking, Sinking and Sourcing, Synchronous Buck
Controller for DDR Memory and Termination Supplies
_______________________________________________________________________________________
5
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
= -40
°
C to +85
°
C
, unless otherwise specified.) (Note 2)
PARAMETER
CONDITIONS
MIN
1.5
TYP
MAX
1.7
UNITS
V
Reference UVLO
VTTR
VTTR Output Voltage Range
V+ = VL = 5V
0
1.8
50.5
51
50.5
V
I
VTTR
= -5mA to +5mA
I
VTTR
= -25mA to +25mA, V
DDR
= 1.8V
I
VTTR
= -25mA to +25mA, V
DDR
= 3.6V
49.5
49
49.5
VTTR Output Accuracy
%V
DDR
OSCILLATOR
FSEL = VL
FSEL not connected
FSEL = REF
FSEL = GND
2.18
1.45
1.09
0.82
2.83
1.89
1.41
1.00
400
On Time (Note 1)
μs
Minimum Off Time (Note 1)
CURRENT LIMIT
ns
LX to PGND, ILIM = VL
LX to PGND, R
ILIM
= 100k
LX to PGND, R
ILIM
= 400k
LX to PGND, ILIM = VL, with percentage of positive
current-limit threshold
85
35
160
110
60
230
Current-Limit Threshold
(Positive Direction)
mV
Current-Limit Threshold
(Negative Direction)
VL REGULATOR
Output Voltage
RMS Output Current
Bypass Capacitor
FSEL LOGIC
Logic Input Current
Logic GND Level
Logic REF Level
Logic Float Level
Logic VL Level
EN/HSD LOGIC
EN/HSD Shutdown Current
Logic High
Logic Low
POWER-OK OUTPUT
-90
-130
%
5.5V < V+
< 14V; 1mA < I
VL
< 35mA
ESR < 100m
4.8
2.2
5.2
35
V
mA
μF
3
μA
V
V
V
V
0.5
2.35
3.85
FSEL = VREF
FSEL floating
FSEL = VL
1.65
3.15
VL - 0.4
I
EN/HSD
for V
EN/HSD
= 0.8V
VL = V+ = 4.5V to 5.5V, 100mV hysteresis
VL = V+ = 4.5V to 5.5V
0.5
1.45
3.0
μA
V
V
0.8
Upper VTT Threshold
110
114
%V
DDR
/2
%V
DDR
/2
Lower VTT Threshold
86
90
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1917EEE+ | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 Track/Sink/Source Synchronous Buck RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| MAX1917EEE+T | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 Track/Sink/Source Synchronous Buck RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| MAX1917EEE-T | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| MAX1917EEE-TG068 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX1917EVKIT | 功能描述:電源管理IC開發(fā)工具 RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
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