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參數(shù)資料
| 型號(hào)： | μA723 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Precision Voltage Regulator(精密PWM控制器) |
| 中文描述： | 精密穩(wěn)壓器（精密的PWM控制器） |
| 文件頁數(shù)： | 7/13頁 |
| 文件大?。?/td> | 321K |
| 代理商： | ΜA723 |
μ
A723C,
μ
A723M
μ
A723Y
PRECISION VOLTAGE REGULATORS
SLVS057B – AUGUST 1972 – REVISED AUGUST 1995
3–7
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
Table 1. Resistor Values (k
) for Standard Output Voltages
OUTPUT
VOLTAGE
(V)
APPLICABLE
FIGURES
(SEE NOTE 4)
FIXED
OUTPUT
±
5%
R1
(k
)
4.12
OUTPUT
ADJUSTABLE
±
10% (SEE NOTE 5)
R1
(k
)
(k
)
1.8
0.5
OUTPUT
VOLTAGE
(V)
APPLICABLE
FIGURES
(SEE NOTE 4)
FIXED
OUTPUT
±
5%
R1
(k
)
3.57
OUTPUT
ADJUSTABLE
±
10% (SEE NOTE 5)
R1
(k
)
(k
)
2.2
10
R2
(k
)
3.01
P1
P2
(k
)
1.2
R2
(k
)
105
P1
R2
(k
)
3.0
1,5,6,9,11,
12 (4)
1,5,6,9,11,
12 (4)
1,5,6,9,11,
12 (4)
1,5,6,9,11,
12 (4)
2,4,(5,6,
9,12)
2,4,(5,6,
9,12)
2,4,(5,6,
9,12)
2,4,(5,6,
9,12)
7
7
100
7
91
3.6
3.57
3.65
1.5
0.5
1.5
250
7
3.57
255
2.2
10
240
5.0
2.15
4.99
0.75
0.5
2.2
–6
3, 10
3.57
2.43
1.2
0.5
0.75
(Note 6)
6.0
1.15
6.04
0.5
0.5
2.7
–9
3, 10
3.48
5.36
1.2
0.5
2.0
9.0
1.87
7.15
0.75
1.0
2.7
–12
3, 10
3.57
8.45
1.2
0.5
3.3
12
4.87
7.15
2.0
1.0
3.0
–15
3, 10
3.57
11.5
1.2
0.5
4.3
15
7.87
7.15
3.3
1.0
3.0
–28
3, 10
3.57
24.3
1.2
0.5
10
28
21.0
7.15
5.6
1.0
2.0
–45
8
3.57
41.2
2.2
10
33
45
75
3.57
3.57
48.7
78.7
2.2
2.2
10
10
39
68
–100
–250
8
8
3.57
3.57
95.3
249
2.2
2.2
10
10
91
240
NOTES:
4. 4The R1/R2 divider may be across either VO or V(ref). If the divider is across V(ref), use the figure numbers without parentheses.
If the divider is across VO, use the figure numbers in parentheses.
5. To make the voltage adjustable, the R1/R2 divider shown in the figures must be replaced by the divider shown below.
R1
P1
R2
Adjustable Output Circuit
6. For Figures 3, 8, and 10, the device requires a minimum of 9 V between VCC+ and VCC– when VO is equal to or more positive than
–9 V.
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