参数资料
| 型号： | SPX1117T-L-3-3/TR |
| 厂商： | Exar Corporation |
| 文件页数： | 8/11页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 3.3V .8A TO263-3 |
| 标准包装： | 500 |
| 稳压器拓扑结构： | 正，固定式 |
| 输出电压： | 3.3V |
| 输入电压： | 最高 15V |
| 电压 - 压降（标准）： | 1.1V @ 800mA |
| 稳压器数量： | 1 |
| 电流 - 输出： | 800mA |
| 电流 - 限制（最小）： | 1A |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | TO-263-4，D²Pak（3 引线+接片），TO-263AA |
| 供应商设备封装： | TO-263-3 |
| 包装： | 带卷 (TR) |
S P X 1 1 1 7
8 0 0 m A L o w D r o p o u t V o l t a g e R e g u l a t o r
P RE -B IAS O UTPUT V OLTAGE S TART -U P
The SPX1117 is not intended for operations
requiring start-up into a pre-biased load.
Proper discharge of the output voltage is
recommended prior of turning on the device
through the application of the input voltage.
L AYOUT C ONSIDERATIONS
Parasitic line resistance can degrade local
regulation. In order to avoid this, connect R 1
directly to V OUT as illustrated in figure 25. For
the same reason R 2 should be connected to
the negative side of the load.
Fig. 21: Current Cource
Fig. 24: 5V Regulator with Shutdown
Fig. 25: Recommended Connections for Best Results
PC Board
mm 2
2500
2500
2500
2500
2500
1600
2500
Topside
Copper
mm 2
2500
1250
950
2500
1800
600
1250
Backside
Copper
mm 2
2500
2500
2500
0
0
1600
0
Thermal
Resistance
Jct to amb.
°C/W
46
47
49
51
53
55
58
Fig. 22:Typical Adjustable Regulator
2500
1600
900
900
915
600
240
240
0
0
900
0
59
67
72
85
Table 1
Fig. 23: Improving Ripple Rejection
? 2011 Exar Corporation
8/11
Rev. 2.1.0
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SPX1117U | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:800mA Low Dropout Regulator |
| SPX1117U-1.5 | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:800mA Low Dropout Voltage Regulator |
| SPX1117U-1.8 | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:800mA Low Dropout Voltage Regulator |
| SPX1117U-1-5 | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:800mA Low Dropout Voltage Regulator |
| SPX1117U-1-8 | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:800mA Low Dropout Voltage Regulator |
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