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)： 3/18頁
文件大?。?/td> 336K
代理商： MAX1917EEE
M
Tracking, Sinking and Sourcing, Synchronous Buck
Controller for DDR Memory and Termination Supplies
_______________________________________________________________________________________
3
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
CONDITIONS
MIN
TYP
+160
MAX
UNITS
°
C
Thermal Shutdown
SOFT-START
Rising temperature, typical hysteresis = 15
°
C
ILIM Ramp Period
Ramps the ILIM trip threshold from 20% to 100%
in 20% increments
1.7
ms
OSCILLATOR
FSEL = VL
FSEL = unconnected
FSEL = REF
FSEL = GND
FSEL = VL
FSEL not connected
FSEL = REF
FSEL = GND
200
300
400
550
2.5
1.67
1.25
0.91
350
Oscillator Frequency
kHz
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
90
40
170
100
50
200
110
60
230
Current-Limit Threshold
(Positive Direction)
mV
Current-Limit Threshold
(Negative Direction)
-90
-110
-130
%
ILIM Input Current
V
L
REGULATOR
5
μA
Output Voltage
5.5V < V+ < 14V
1mA < I
VL
< 35mA
5.5V < V+ < 14V, I
VL
= 10mA
4.8
5.0
5.2
V
Line Regulation
RMS Output Current
Bypass Capacitor
DRIVER
DH Gate-Driver On-Resistance
DL Gate-Driver On-Resistance
(Source)
0.2
%
mA
μF
35
ESR < 100m
2.2
V
BST
- V
LX
= 5V
1.4
2.5
DL high state
1.6
3
DL Gate-Driver On-Resistance
(Sink)
DL low state
0.75
1.25
DL rising
DL falling
32
30
Dead Time
ns
FSEL LOGIC
Logic Input Current
Logic GND Level
Logic REF Level
Logic Float Level
-3
3
μA
V
V
V
0.5
2.35
3.85
FSEL = VREF
FSEL floating
1.65
3.15
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參數(shù)描述
MAX1917EEE+ 功能描述:直流/直流開關轉(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 安裝風格:SMD/SMT
MAX1917EEE+T 功能描述:直流/直流開關轉(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 安裝風格:SMD/SMT
MAX1917EEE-T 功能描述:直流/直流開關轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率: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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