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| 型号： | NCV8702SN18T1G |
| 厂商： | ON Semiconductor |
| 文件页数： | 3/20页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 1.8V .2A SOT23-5 |
| 标准包装： | 3,000 |
| 稳压器拓扑结构： | 正，固定式 |
| 输出电压： | 1.8V |
| 输入电压： | 最高 5.5V |
| 电压 - 压降（标准）： | 0.14V @ 200mA |
| 稳压器数量： | 1 |
| 电流 - 输出： | 200mA |
| 电流 - 限制（最小）： | 220mA |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 6-TSSOP（5 引线），SC-88A，SOT-353 |
| 供应商设备封装： | 5-TSOP |
| 包装： | 带卷 (TR) |
NCV8702
Table 3. THERMAL CHARACTERISTICS (Note 3)
Rating
Thermal Characteristics, TSOP ? 5,
Thermal Resistance, Junction ? to ? Air
Thermal Characterization Parameter, Junction ? to ? Lead (Pin 2)
Thermal Characteristics, XDFN6 1.5 x 1.5 mm
Thermal Resistance, Junction ? to ? Air
Thermal Characterization Parameter, Junction ? to ? Board
Symbol
q JA
y JA
q JA
y JB
Value
224
115
149
81
Unit
? C/W
? C/W
3. Single component mounted on 1 oz, FR4 PCB with 645 mm 2 Cu area.
Table 4. ELECTRICAL CHARACTERISTICS
( ? 40 ? C ? T J ? 125 ? C; V IN = V OUT(NOM) + 0.3 V or 2.0 V, whichever is greater; V EN = 0.9 V, I OUT = 10 mA, C IN = C OUT = 1 m F.
Typical values are at T J = +25 ? C. Min/Max values are specified for T J = ? 40 ? C and T J = 125 ? C respectively.) (Note 4)
Parameter
Operating Input Voltage
Undervoltage lock ? out
Output Voltage Accuracy
Line Regulation
Test Conditions
V IN rising
V OUT + 0.3 V ? V IN ? 5.5 V, I OUT = 0 ? 200 mA
V OUT + 0.3 V ? V IN ? 4.5 V, I OUT = 10 mA
Symbol
V IN
UVLO
V OUT
Reg LINE
Min
2.0
1.2
? 2
Typ
1.6
290
Max
5.5
1.9
+2
Unit
V
V
%
m V/V
V OUT + 0.3 V ? V IN ? 5.5 V, I OUT = 10 mA
Reg LINE
440
m V/V
Load Regulation
I OUT = 0 mA to 200 mA
Reg LOAD
13
m V/mA
Dropout voltage (Note 5)
I OUT = 200 mA, V OUT(nom) = 2.5 V
V DO
140
200
mV
Output Current Limit
Quiescent current
Ground current
V OUT = 90% V OUT(nom)
I OUT = 0 mA
I OUT = 2 mA
I CL
I Q
I GND
220
385
10
60
550
16
mA
m A
m A
I OUT = 200 mA
I GND
160
m A
Shutdown current (Note 6)
V EN ? 0.4 V
I DIS
0.005
m A
V EN ? 0.4 V, V IN = 4.5 V
I DIS
0.01
1
m A
EN Pin Threshold Voltage
V
High Threshold
Low Threshold
V EN Voltage increasing
V EN Voltage decreasing
V EN_HI
V EN_LO
0.9
0.4
EN Pin Input Current
V EN = V IN = 5.5 V
I EN
110
500
nA
Turn ? On Time (Note 7)
Output Voltage Overshoot on
Start ? up (Note 8)
Load Transient
C OUT = 1.0 m F, I OUT = 1 mA
V EN = 0 V to 0.9 V, 0 ? I OUT ? 200 mA
I OUT = 1 mA to 200 mA or
I OUT = 200 mA to 1 mA in 10 m s, C OUT = 1 m F
t ON
D V OUT
D V OUT
300
? 30/+30
2
m s
%
mV
Power Supply Rejection Ratio
V IN = 3 V, V OUT = 2.5 V
f = 100 Hz
PSRR
70
dB
I OUT = 150 mA
f = 1 kHz
f = 10 kHz
68
53
Output Noise Voltage
Active Discharge Resistance
Thermal Shutdown Temperature
V OUT = 2.5 V, V IN = 3 V, I OUT = 200 mA
f = 100 Hz to 100 kHz
V EN < 0.4 V
Temperature increasing from T J = +25 ? C
V N
R DIS
T SD
11
1
160
m V rms
k W
? C
Thermal Shutdown Hysteresis
Temperature falling from T SD
T SDH
?
20
?
? C
4. Performance guaranteed over the indicated operating temperature range by design and/or characterization. Production tested at T J = T A
= 25 _ C. Low duty cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible.
5. Characterized when V OUT falls 100 mV below the regulated voltage at V IN = V OUT(NOM) + 0.3 V.
6. Shutdown Current is the current flowing into the IN pin when the device is in the disable state.
7. Turn ? On time is measured from the assertion of EN pin to the point when the output voltage reaches 0.98 V OUT(NOM)
8. Guaranteed by design.
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