参数资料
型号: MAX1917EEE+T
厂商: Maxim Integrated Products
文件页数: 14/18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
10k ?
VL
SHDN
Q3
Si1029X
R3
20k ? `
POK
V+
V DDR
5.5V TO 14V
3
10
2
POK
V+
DDR
MAX1917
VL
BST
DH
11
14
15
VL
D1
CMPSH-3
C4
0.22 μ F
10V
C3
2.2 μ F
10V
C2
330 μ F
6V
Q1
IRF7811W
C1
1 μ F
6.3V
2.5V
V IN
C9
1.0 μ H/5A
C6
1
0.47 μ F/25V
7
C8
0.47 μ F/10V
5
VL
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/10V
VTTR
OUTPUT CAPACITORS ARE SELECTED TO COMPLY WITH JEDEC SPECIFICATIONS.
Figure 6. Typical Application Circuit Using P/N-Channel MOSFETs for EN to Minimize the Supply Current from V IN in Shutdown Mode
5V
R2
POK
R3
20k ?
3
POK
5.1k ?
VL
11
D1
CMPSH-3
C3
4.7 μ F
10V
C2
4 x 330 μ F
6V
C1
1 μ F
25V
4.5V TO 15V
V IN
10
V+
BST
14
C4
0.75 μ H/24A
SHDN
Q3
2N7002K
R6
C9
0.22 μ F
25V
C8
0.47 μ F/10V
VL
2
1
7
5
DDR
EN/HSD
REF
ILIM
MAX1917
DH
LX
DL
PGND
15
16
12
13
0.47 μ F
10V
2.5V
Q1
IRF7822
Q2
IRF7822
L1
R4
15k ?
0.1%
R5
C6
3 x 560 μ F
4V
2.5V AT 12A
V OUT
C5
1 μ F
6.3V
6
8
FSEL
GND
VTT
VTTR
4
9
10k ?
0.1%
PGND
OUTPUT CAPACITORS ARE SELECTED TO COMPLY WITH JEDEC SPECIFICATIONS
Figure 7. Circuit to Generate a Fixed 2.5V at 12A Output with a Wide Input Voltage Range
14
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