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參數(shù)資料
| 型號： | ADP3303AR-5 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | RECTIFIER SCHOTTKY SINGLE 5A 45V 175A-ifsm 0.55V-vf 0.5mA-ir TO220AC 50/TUBE |
| 中文描述： | 5 V FIXED POSITIVE LDO REGULATOR, 0.4 V DROPOUT, PDSO8 |
| 封裝： | SOIC-8 |
| 文件頁數(shù)： | 8/8頁 |
| 文件大小： | 135K |
| 代理商： | ADP3303AR-5 |
ADP3303A
–8–
REV. A
C
P
OUTLINE DIMENSIONS
Dimensions shown in inches and (mm).
14-Lead Thin Shrink Small Outline Package (TSSOP)
(RU-14)
14
8
7
1
0.201 (5.10)
0.193 (4.90)
0.256 (6.50)
0.246 (6.25)
0.177 (4.50)
0.169 (4.30)
PIN 1
SEATING
PLANE
0.006 (0.15)
0.002 (0.05)
0.0118 (0.30)
0.0075 (0.19)
(0.65)
BSC
0.0433
(1.10)
0.0079 (0.20)
0.0035 (0.090)
0.028 (0.70)
0.020 (0.50)
8°
0°
D1
1N5817
C2
100
m
F
10V
L1
6.8
m
H
R1
V
ADP3303A
IN
SD
OUT
GND
C3
2.2
m
F
3.3V @ 160mA
C1
100
m
F
10V
ADP3000-ADJ
I
LIM
V
IN
SW1
GND
SW2
FB
V
IN
= 2.5V TO 3.5V
R2
30.1k
V
1%
2N3Q1
Q2
R4
274k
V
R3
124k
V
1%
FB
R5
121k
V
R6
68.1k
V
Figure 25. Constant Dropout Post Regulator
BOTTOM OF THE BOARD
10mm
1
10mm
TOP OF THE BOARD
DRAWINGS NOT TO SCALE
Figure 22. ADP3303A (TSSOP-14) Recommended Board
Layout
ADP3303A
OUT
IN
GND
OUTPUT SELECT
5V
0V
C1
1.0
m
F
C2
1.0
m
F
V
OUT
= 5V/3V
V
IN
= 5.5V TO 12V
SD
187k
V
57.6k
V
FB
110k
V
73.2k
V
ADP3303A
OUT
IN
GND
SD
FB
Figure 23. Crossover Switch
V
IN
= 6V TO 8V
V
OUT
= 5V @ 1A
MJE253*
C2
10
m
F
C1
47
m
F
R1
50
V
*AAVOD531002 HEAT SINK IS USED
IN
OUT
ERR
GND
SD
ADP3303A
FB
187k
V
57.6k
V
Figure 24. High Output Current Linear Regulator
Higher Output Current
The ADP3303A can source up to 200 mA without any heatsink
or pass transistor. If higher current is needed, an appropriate
pass transistor can be used, as in Figure 24, to increase the
output current to 1 A.
Constant Dropout Post Regulator
The circuit in Figure 25 provides high precision with low drop-
out for any regulated output voltage. It significantly reduces the
ripple from a switching regulator while providing a constant
dropout voltage, which limits the power dissipation of the LDO
to 60 mW. The ADP3000 used in this circuit is a switching
regulator in the step-up configuration.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADP3303AR-5-REEL | 制造商:Analog Devices 功能描述:LDO Regulator Pos 5V 0.3A 8-Pin SOIC N T/R |
| ADP3303AR-5-REEL7 | 制造商:Analog Devices 功能描述:LDO Regulator Pos 5V 0.3A 8-Pin SOIC N T/R |
| ADP3303ARU | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Positive Adjustable Voltage Regulator |
| ADP3303ARZ-2.7 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述: |
| ADP3303ARZ-3 | 制造商:Analog Devices 功能描述: |
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