参数资料
| 型号： | NCV317MBSTT3G |
| 厂商： | ON Semiconductor |
| 文件页数： | 2/14页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO ADJ .5A SOT-223-4 |
| 标准包装： | 4,000 |
| 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（最小） |
| 电流 - 限制（最小）： | 500mA |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | TO-261-4，TO-261AA |
| 供应商设备封装： | SOT-223 |
| 包装： | 带卷 (TR) |
LM317M, NCV317MA, NCV317M
MAXIMUM RATINGS (T A = 25 ° C, unless otherwise noted.)
Input ? Output Voltage Differential
Rating
Symbol
V I ? V O
Value
40
Unit
Vdc
Power Dissipation (Package Limitation) (Note 1)
Plastic Package, T Suffix, Case 221A
T A = 25 ° C
P D
Internally Limited
Thermal Resistance, Junction ? to ? Air
Thermal Resistance, Junction ? to ? Case
q JA
q JC
70
5.0
° C/W
° C/W
Plastic Package, DT Suffix, Case 369C
T A = 25 ° C
P D
Internally Limited
Thermal Resistance, Junction ? to ? Air
Thermal Resistance, Junction ? to ? Case
Plastic Package, ST Suffix, Case 318E
T A = 25 ° C
Thermal Resistance, Junction ? to ? Air
Thermal Resistance, Junction ? to ? Case
Operating Junction Temperature Range
Storage Temperature Range
q JA
q JC
P D
q JA
q JC
T J
T stg
92
5.0
Internally Limited
245
15
? 40 to +150
? 65 to +150
° C/W
° C/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.
1. Figure 25 provides thermal resistance versus PC board pad size.
ELECTRICAL CHARACTERISTICS (V I ? V O = 5.0 V; I O = 0.1 A, T J = T low to T high (Note 2), unless otherwise noted.)
LM317M/LM317MB/NCV317MB
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 ≤ 0.5 A
V O ≤ 5.0 V
V O ≥ 5.0 V
Adjustment Pin Current
Adjustment Pin Current Change
2.5 V ≤ V I ? V O ≤ 40 V, 10 mA ≤ I L ≤ 0.5 A, P D ≤ P max
Reference Voltage
3.0 V ≤ V I ? V O ≤ 40 V, 10 mA ≤ I L ≤ 0.5 A, P D ≤ P max
Line Regulation 3.0 V ≤ V I ? V O ≤ 40 V (Note 3)
Load Regulation 10 mA ≤ I O ≤ 0.5 A (Note 3)
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
V I ? V O = 40 V, P D ≤ P max , T A = 25 ° C
RMS Noise, % of V O (T A = 25 ° C, 10 Hz ≤ f ≤ 10 kHz)
Ripple Rejection, V O = 10 V, f = 120 Hz (Note 4)
Without C Adj
C Adj = 10 m F
Thermal Shutdown (Note 5)
Long ? Term Stability, T J = T high (Note 6)
T A = 25 ° C for End ? point Measurements
Figure
?
?
Symbol
Reg line
Reg load
I Adj
D I Adj
V ref
Reg line
Reg load
T S
I Lmin
I max
N
RR
?
S
Min
?
?
?
?
?
1.20
?
?
?
?
?
0.5
0.15
?
?
66
?
?
Typ
0.01
5.0
0.1
50
0.2
1.25
0.02
20
0.3
0.7
3.5
0.9
0.25
0.003
65
80
180
0.3
Max
0.04
25
0.5
100
5.0
1.30
0.07
70
1.5
?
10
?
?
?
?
?
?
1.0
Unit
%/V
mV
% V O
m A
m A
V
%/V
mV
% V O
% V O
mA
A
% V O
dB
° C
%/1.0
kHrs.
2. T low to T high = 0 ° to +125 ° C for LM317M T low to T high = ? 40 ° to +125 ° C for LM317MB, NCV317MB.
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. C Adj , when used, is connected between the adjustment pin and ground.
5. Thermal characteristics are not subject to production test.
6. 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
2
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