参数资料
型号: MAX1917EEE+T
厂商: Maxim Integrated Products
文件页数: 13/18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
Typical Application Circuits (continued)
R2
VL
VL
5.1k ?
POK
R3
20k ?
3
POK
VL
11
D1
CMPSH-3
C3
4.7 μ F
10V
C2
2 x 330 μ F
6V
C1
1 μ F
6.3V
2.5V
V IN
0.68 μ H/9A
V+
V DDR
SHDN
Q3
2N7002K
5.5V TO 14V
C9
0.47 μ F/25V
C8
0.47 μ F/10V
VL
10
2
1
7
5
V+
DDR
EN/HSD
REF
ILIM
MAX1917
BST
DH
LX
DL
PGND
14
15
16
12
13
C4
0.47 μ F
10V
2.5V
Q1
IRF7463
Q2
IRF7463
L1
2m ?
1.25V AT 7A
V OUT
C6
4 x 270 μ F
2V
PGND
6
FSEL
VTT
4
8
GND
VTTR
9
C7
1 μ F/6.3V
VTTR
OUTPUT CAPACITORS ARE SELECTED TO COMPLY WITH JEDEC SPECIFICATIONS
Figure 4. Typical Application Circuit for 1.25V at 7A Output Using Voltage Positioning
R2
VL
VL
5.1k ?
POK
R3
20k ?
3
POK
VL
11
D1
CMPSH-3
C3
2.2 μ F
10V
C2
330 μ F
6V
C1
1 μ F
6.3V
2.5V
V IN
V+
V DDR
5.5V TO 14V
C9
10
2
V+
DDR
MAX1917
BST
DH
14
15
C4
0.22 μ F
10V
Q1
IRF7811W
1.0 μ H/5A
C6
SHDN
Q3
2N7002K
0.47 μ F/25V
C8
0.47 μ F/10V
VL
1
7
5
EN/HSD
REF
ILIM
LX
DL
PGND
16
12
13
2.5V
L1
Q2
IRF7811W
3 x 270 μ F
2V
1.25V AT 3.5A
C5
10 μ F
6.3V
V OUT
PGND
6
FSEL
VTT
4
8
GND
VTTR
9
C7
1 μ F/6.3V
VTTR
OUTPUT CAPACITORS ARE SELECTED TO COMPLY WITH JEDEC SPECIFICATIONS.
Figure 5. Typical Application Circuit for 1.25V at 3.5A Output
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