参数资料
型号: SPX2815AT-L-3-3/TR
厂商: Exar Corporation
文件页数: 5/10页
文件大小: 0K
描述: IC REG LDO 3.3V 1.5A 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 10V
电压 - 压降(标准): 1.1V @ 1.5A
稳压器数量: 1
电流 - 输出: 1.5A
电流 - 限制(最小): 2.5A
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)
APPLICATION INFORMATION: Continued
(Note A)
SPX2815
5V
V IN
IN
OUT
V OUT
V IN
4.7 μ F +
C 1
IN
SPX2815
ADJ
OUT
V REF
R 1
C 2
V OUT
4.7 μ F
+
ADJ
R 1
330 Ω
1%
*C 1
I ADJ
50 μ A
V OUT = V REF (1+R 2 /R 1 ) +I ADJ R 2
R 2
improves ripple rejection.
Z C should be ~ R1 at ripple frequency
R 2
1k Ω ,
1%
+
C 1
10 μ F*
10 μ F
Note A: V IN(MIN) = (Intended V OUT ) + (V
DROPOUT (MAX) )
Figure 7. Typical Adjustable Regulator
Figure 8. Improving Ripple Rejection
V IN
(Note A)
IN
SPX2815
OUT
5V
V IN
SPX2815
R P Parasitic Line
Resistance
V OUT
ADJ
330W
+
4.7 μ F
1%
+
10 μ F
ADJ
TTL
Input
1K
1k
2N3904
1k Ω
1%
Connect R to
Case of Regulator
R 1
Connect R 2
to Load
R L
R 2
Note A: V IN(MIN) = (Intended V OUT ) + (V DROPOUT (MAX) )
Figure 9. 5V Regulator with Shutdown
Figure 10. Recommended Connections for Best Results
PINOUTS
TO-252 (R)
TO-220-3 (U)
TO-263-3 (T)
1
2
3
1
2
3
1
2
3
ADJ/GND
V
OUT
V IN
ADJ/GND
V OUT
V IN
Front View
ADJ/GND
V OUT
V IN
Top View
Front View
Note: Tab is connected to Pin 2 (Vout)
Date: 6/21/06 Rev C
SPX2815 1.5A Low Dropout Voltage Regulator
5
? 2006 Sipex Corporation
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