参数资料
| 型号： | KA317 |
| 厂商： | Fairchild Semiconductor |
| 文件页数： | 3/8页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO ADJ 1.5A TO-220 |
| 标准包装： | 1,200 |
| 稳压器拓扑结构： | 正，可调式 |
| 输出电压： | 1.2 V ~ 37 V |
| 输入电压： | 最高 40 V |
| 稳压器数量： | 1 |
| 电流 - 输出： | 1.5A |
| 工作温度： | 0°C ~ 125°C |
| 安装类型： | 通孔 |
| 封装/外壳： | TO-220-3 |
| 供应商设备封装： | TO-220-3 |
| 包装： | 散装 |
Electrical Characteristics
V I -V O = 5 V, I O = 0.5 A, 0°C ≤ T J ≤ +125°C, I MAX = 1.5 A, P DMAX = 20 W, unless otherwise specified.
Symbol
R LINE
Parameter
Line Regulation (1)
Conditions
T A = +25 ° C, 3 V ≤ V I - V O ≤ 40 V
3 V ≤ V I - V O ≤ 40 V
Min.
Typ.
0.01
0.02
Max.
0.04
0.07
Unit
%/ V
%/ V
R LOAD
I ADJ
Load Regulation (1)
Adjustable Pin Current
T A = +25 ° C,
10mA ≤ I O ≤ I MAX
10 mA ≤ I O ≤ I MAX
V O < 5 V
V O ≥ 5 V
V O < 5 V
V O ≥ 5 V
18
0.4
40
0.8
46
25
0.5
70
1.5
100
mV
%/V O
mV
%/V O
μ A
Δ I ADJ
Adjustable Pin Current
Change
3 V ≤ V I - V O ≤ 40 V,
10 mA ≤ I O ≤ I MAX, P D ≤ P MAX
2.0
5.0
μ A
V REF
Reference Voltage
3 V ≤ V IN - V O ≤ 40 V,
10 mA ≤ I O ≤ I MAX, P D ≤ P MAX
1.20
1.25
1.30
V
ST T
Temperature Stability
0.7
%/V O
I L(MIN)
Minimum Load Current
to Maintain Regulation
V I - V O = 40 V
3.5
12.0
mA
I O(MAX)
Maximum Output
Current
T A = 25 ° C
V I - V O ≤ 15 V,
P D ≤ P MAX
V I - V O ≤ 40 V,
P D ≤ P MAX
1.5
2.2
0.3
A
A
e N
RMS Noise,% of V OUT
T A = +25 ° C, 10 Hz ≤ f ≤ 10 kHz
0.003
0.010
%/V O
C ADJ = 10 μ F
RR
Ripple Rejection
V O = 10 V, f = 120 Hz without C ADJ
(2)
66
60
75
dB
dB
ST
Long-Term Stability, T J =
T HIGH
T A = +25 ° C for End Point
Measurements, 1000 HR
0.3
1.0
%
Notes:
1. Load and line regulation are specified at constant junction temperature. Change in V D due to heating effects must be
taken into account separately. Pulse testing with low duty is used (P MAX = 20 W).
2. C ADJ , when used, is connected between the adjustment pin and ground.
? 2002 Fairchild Semiconductor Corporation
KA317 / LM317 Rev. 1.2.1
3
www.fairchildsemi.com
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