参数资料
| 型号： | NCV317BTG |
| 厂商： | ON Semiconductor |
| 文件页数： | 2/12页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO ADJ .5A TO220AB |
| 标准包装： | 50 |
| 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： | 500mA |
| 电流 - 限制（最小）： | 1.5A |
| 工作温度： | -55°C ~ 150°C |
| 安装类型： | 通孔 |
| 封装/外壳： | TO-220-3 |
| 供应商设备封装： | TO-220AB |
| 包装： | 管件 |
| 其它名称： | NCV317BTGOS |
LM317, NCV317
MAXIMUM RATINGS
Input ? Output Voltage Differential
Rating
Symbol
V I ? V O
Value
? 0.3 to 40
Unit
Vdc
Power Dissipation
Case 221A
T A = +25 ? C
Thermal Resistance, Junction ? to ? Ambient
Thermal Resistance, Junction ? to ? Case
Case 936 (D 2 PAK ? 3)
T A = +25 ? C
Thermal Resistance, Junction ? to ? Ambient
Thermal Resistance, Junction ? to ? Case
Operating Junction Temperature Range
Storage Temperature Range
P D
q JA
q JC
P D
q JA
q JC
T J
T stg
Internally Limited
65
5.0
Internally Limited
70
5.0
? 55 to +150
? 65 to +150
W
? C/W
? C/W
W
? C/W
? C/W
? C
? C
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
ELECTRICAL CHARACTERISTICS
(V I ? V O = 5.0 V; I O = 0.5 A for D2T and T packages; T J = T low to T high (Note 1); I max and P max (Note 2); unless otherwise noted.)
Characteristics
Line Regulation (Note 3), T A = +25 ? C, 3.0 V ? V I ? V O ? 40 V
Load Regulation (Note 3), T A = +25 ? C, 10 mA ? I O ? I max
V O ? 5.0 V
V O ? 5.0 V
Thermal Regulation, T A = +25 ? C (Note 4), 20 ms Pulse
Adjustment Pin Current
Adjustment Pin Current Change, 2.5 V ? V I ? V O ? 40 V,
10 mA ? I L ? I max , P D ? P max
Reference Voltage, 3.0 V ? V I ? V O ? 40 V, 10 mA ? I O ? I max , P D ? P max
Line Regulation (Note 3), 3.0 V ? V I ? V O ? 40 V
Load Regulation (Note 3), 10 mA ? I O ? I max
V O ? 5.0 V
V O ? 5.0 V
Temperature Stability (T low ? T J ? T high )
Minimum Load Current to Maintain Regulation (V I ? V O = 40 V)
Maximum Output Current
V I ? V O ? 15 V, P D ? P max, T Package
V I ? V O = 40 V, P D ? P max , T A = +25 ? C, T Package
RMS Noise, % of V O , T A = +25 ? C, 10 Hz ? f ? 10 kHz
Ripple Rejection, V O = 10 V, f = 120 Hz (Note 5)
Without C Adj
C Adj = 10 m F
Thermal Shutdown (Note 6)
Long ? Term Stability, T J = T high (Note 7), T A = +25 ? C for
Endpoint Measurements
Thermal Resistance Junction ? to ? Case, T Package
Figure
1
2
?
3
1, 2
3
1
2
3
3
3
?
4
?
3
?
Symbol
Reg line
Reg load
Reg therm
I Adj
D I Adj
V ref
Reg line
Reg load
T S
I Lmin
I max
N
RR
?
S
R q JC
Min
?
?
?
?
?
?
1.2
?
?
?
?
?
1.5
0.15
?
?
66
?
?
?
Typ
0.01
5.0
0.1
0.03
50
0.2
1.25
0.02
20
0.3
0.7
3.5
2.2
0.4
0.003
65
80
180
0.3
5.0
Max
0.04
25
0.5
0.07
100
5.0
1.3
0.07
70
1.5
?
10
?
?
?
?
?
?
1.0
?
Unit
%/V
mV
% V O
% V O /W
m A
m A
V
%V
mV
% V O
% V O
mA
A
% V O
dB
? C
%/1.0
kHrs.
? C/W
1. T low to T high = 0 ? to +125 ? C, for LM317T, D2T. T low to T high = ? 40 ? to +125 ? C, for LM317BT, BD2T, T low to T high = ? 55 ? to +150 ? C, for
NCV317BT, BD2T.
2. I max = 1.5 A, P max = 20 W
3. Load and line regulation are specified at constant junction temperature. Changes in V O due to heating effects must be taken into account
separately. Pulse testing with low duty cycle is used.
4. Power dissipation within an IC voltage regulator produces a temperature gradient on the die, affecting individual IC components on the die.
These effects can be minimized by proper integrated circuit design and layout techniques. Thermal Regulation is the effect of these
temperature gradients on the output voltage and is expressed in percentage of output change per watt of power change in a specified time.
5. C Adj , when used, is connected between the adjustment pin and ground.
6. Thermal characteristics are not subject to production test.
7. Since Long ? Term Stability cannot be measured on each device before shipment, this specification is an engineering estimate of average
stability from lot to lot.
http://onsemi.com
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