參數(shù)資料
型號(hào): MC33269ST-3.3T3
廠商: ON SEMICONDUCTOR
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: 800 mA, Adjustable Output, Low Dropout Voltage Regulator
中文描述: 3.3 V FIXED POSITIVE LDO REGULATOR, 1.35 V DROPOUT, PSSO3
封裝: SOT-223, 3 PIN
文件頁(yè)數(shù): 5/14頁(yè)
文件大?。?/td> 133K
代理商: MC33269ST-3.3T3
MC33269, NCV33269
http://onsemi.com
5
I
O
, OUTPUT LOAD CURRENT (mA)
i
V
o
Figure 2. Dropout Voltage versus
Output Load Current
1.5
1.3
1.1
0.9
0.7
0.50
200
400
600
800
1000
Figure 3. Transient Load Regulation
,
20 ms/DIV
C
in
= 10 F
C
O
= 10 F Tantalum
V
in
= V
O
+ 3.0 V
Preload = 0.1 A
0 A
0.5 A
100
mV/Div
,
I
V
V
C
T
A
= 25
°
C
T
A
= 40
°
C
T
A
= 125
°
C
55
900
25
0
25
50
75
100
125
940
980
1020
1060
1100
Figure 4. Dropout Voltage
versus Temperature
Figure 5. MC33269XX Output DC Current versus
InputOutput Differential Voltage
V
T
A
, AMBIENT TEMPERATURE (
°
C)
I
O
= 800 mA
,
F
F
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
0
2.0
4.0
6.0
8.0
10
12
14
16
INPUTOUTPUT VOLTAGE DIFFERENTIAL (V)
T
A
= 25
°
C
MC33269DXX
L = 25 mm Copper
O
70
0.1
1.0
10
100
60
50
40
30
20
Figure 6. MC33269 Ripple Rejection
versus Frequency
Figure 7. MC33269ADJ Ripple Rejection
versus Frequency
R
f, FREQUENCY (kHz)
20
30
40
50
60
70
R
100
10
1.0
f, FREQUENCY (kHz)
V
in
= 8.0 V
V
out
= 5.0 V
I
L
= 800 mA
C
Adj
= 22 F
T
A
= 25
°
C
0.1
V
in
= V
O
+ 3.0 V
I
L
= 800 mA
T
A
= 25
°
C
V
O
= 12 V
V
O
= 3.3 V or 5.0 V
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