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参数资料
| 型号： | MAX1917EEE |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 稳压器 |
| 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 |
| 封装： | QSOP-16 |
| 文件页数： | 6/18页 |
| 文件大小： | 336K |
| 代理商： | MAX1917EEE |
Note 1:
On Time and Off Time specifications are measured from 50% point to 50% point at the DH pin with LX forced to 0V, BST
forced to 5V, and a 250pF capacitor connected from DH to LX. Actual in-circuit times may differ due to MOSFET switching
speeds.
Note 2:
Specifications to -40
°
C are guaranteed by design and are not production tested.
M
Tracking, Sinking and Sourcing, Synchronous Buck
Controller for DDR Memory and Termination Supplies
6
_______________________________________________________________________________________
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
TYP
MAX
UNITS
%V
DDR
/2
%V
DDR
/2
V
μA
Upper VTTR Threshold
110
114
Lower VTTR Threshold
86
90
POK Output Low Level
POK Output High Leakage
I
SINK
= 2mA
V
POK
= 5.5V
0.4
5
100
50
0.1
1.0
10.0
EFFICIENCY vs. LOAD CURRENT
AT 1.25V OUTPUT
60
55
M
LOAD CURRENT (A)
E
70
65
80
85
75
90
95
V
IN
= 5V
V
IN
= 2V
V
IN
= 2.5V
CIRCUIT OF FIGURE 3
96
76
0.1
1.0
10.0
EFFICIENCY vs. LOAD CURRENT
AT 0.9V OUTPUT
80
78
M
LOAD CURRENT (A)
E
84
82
88
90
86
92
94
V
IN
= 5V
V
IN
= 2.5V
CIRCUIT OF FIGURE 3
100
0
0.1
1.0
10.0
EFFICIENCY vs. LOAD CURRENT
AT 1.25V OUTPUT
20
10
M
LOAD CURRENT (A)
E
40
30
60
70
50
80
90
V
IN
= 12V
V
IN
= 2.5V
CIRCUIT OF FIGURE 4
V
IN
= 5V
95
0.1
1.0
10.0
EFFICIENCY vs. LOAD CURRENT
AT 0.9V OUTPUT
55
50
M
LOAD CURRENT (A)
E
65
60
75
80
70
85
90
CIRCUIT OF FIGURE 4
V
IN
= 5V
V
IN
= 2.5V
300
350
450
400
550
600
500
650
-8
-4
-2
-6
0
2
4
6
8
FREQUENCY vs. LOAD CURRENT
AT 1.25V OUTPUT
M
LOAD CURRENT (A)
F
V
IN
= 12V
CIRCUIT OF FIGURE 3
V
IN
= 5V
V
IN
= 2.5V
300
450
400
350
600
550
500
650
-8
-2
0
-6
-4
2
4
6
8
FREQUENCY vs. LOAD CURRENT
AT 0.9V OUTPUT
M
LOAD CURRENT (A)
F
CIRCUIT OF FIGURE 3
V
IN
= 5V
V
IN
= 2.5V
Typical Operating Characteristics
(V+ = 12V, V
OUT
= 1.25V, T
A
= +25
°
C, unless otherwise noted.)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1917EEE+ | 功能描述:直流/直流开关转换器 Track/Sink/Source Synchronous Buck RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX1917EEE+T | 功能描述:直流/直流开关转换器 Track/Sink/Source Synchronous Buck RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX1917EEE-T | 功能描述:直流/直流开关转换器 RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格: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:电源管理IC开发工具 RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
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