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| 型号： | MCP1802T-1202I/OT |
| 厂商： | Microchip Technology |
| 文件页数： | 3/28页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 1.2V .26A SOT23-5 |
| 标准包装： | 1 |
| 稳压器拓扑结构： | 正，固定式 |
| 输出电压： | 1.2V |
| 输入电压： | 2 V ~ 10 V |
| 稳压器数量： | 1 |
| 电流 - 输出： | 260mA（最小） |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SC-74A，SOT-753 |
| 供应商设备封装： | SOT-23-5 |
| 包装： | 标准包装 |
| 产品目录页面： | 667 (CN2011-ZH PDF) |
| 其它名称： | MCP1802T-1202I/OTDKR |
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MCP1802
1.0
ELECTRICAL
CHARACTERISTICS
? Notice: Stresses above those listed under “Maximum
Ratings” may cause permanent damage to the device.
This is a stress rating only and functional operation of
Absolute Maximum Ratings ?
Input Voltage ................................................................. +12V
Output Current (Continuous) ..................... P D /(V IN -V OUT )mA
Output Current (Peak) ............................................... 500 mA
the device at those or any other conditions above those
indicated in the operational listings of this specification
is not implied. Exposure to maximum rating conditions
for extended periods may affect device reliability.
Outpu t Voltage ............................... (V SS -0.3V) to (V IN +0.3V)
SHDN Voltage ..................................(V SS -0.3V) to (V IN +0.3V)
Continuous Power Dissipation:
5-Pin SOT-23-5 .................................................... 250 mW
ELECTRICAL CHARACTERISTICS
Electrical Specifications: Unless otherwise specified, all limits are established for V IN = V R + 1.0V, Note 1 , C OUT = 1 μF (X7R),
C IN = 1 μF (X7R), V SHDN = V IN , T A = +25°C
Parameters
Sym
Min
Typ
Max
Units
Conditions
Input / Output Characteristics
Input Operating Voltage
Input Quiescent Current
Shutdown Current
Maximum Output Current
Current Limiter
Output Short Circuit Current
Output Voltage Regulation
V IN
I q
I SHDN
I OUT_mA
I LIMIT
I OUT_SC
V OUT
2.0
—
—
300
300
260
260
—
—
V R -2.0%
—
25
0.01
—
—
—
—
380
50
V R
10.0
50
0.10
—
—
—
—
—
—
V R +2.0%
V
μA
μA
mA
mA
mA
V
I L = 0 mA
SHDN = 0V
V R ? 2V, V IN = V R +1.0V
1.5V ?? V R ? 2.0V, V IN =3.0V
1.0V ?? V R ? 1.5V, V IN = V R +1.5V
0.9V ?? V R ? 1.0V, V IN =2.5V
if V R ? 1.75V, then V IN = V R + 2.0V
if V R ? 1.75V, then V IN = V R + 2.0V
V R -30 mV
V R
V R +30 mV
V R ? 1.45V, I OUT = 30 mA
V OUT Temperature
Coefficient
Line Regulation
Load Regulation
TCV OUT
? V OUT /
(V OUT X ? V IN )
? V OUT /V OUT
V DROPOUT
—
-0.2
—
—
—
100
±0.01
15
—
60
—
+0.2
50
100
90
ppm/°C
%/V
mV
mV
I OUT = 30 mA, -40°C ?? T A ?? +85°C,
V R ? 1.75V, I OUT = 30 mA
V R ? 1.75V, I OUT = 10 mA
I L = 1.0 mA to 300 mA,
I L = 30 mA, 3.1V ?? V R ? 6.0V
—
—
—
200
80
240
250
120
350
I L = 100 mA, 3.1V ?? V R ? 6.0V
I L = 30 mA, 2.0V ?? V R ? 3.1V
I L = 100 mA, 2.0V ?? V R < 3.1V
—
—
2.07 - V R
2.23 - V R
2.10 - V R
2.33 - V R
V
I L = 30 mA, ? V R ? 2.0V
I L = 100 mA, V R < 2.0V
Power Supply Ripple
Rejection Ratio
Output Noise
PSRR
e N
—
—
70
0.46
—
—
dB
μ V/ √ Hz
f = 10 kHz, I L = 50 mA, V INAC = 1V
pk-pk, C IN = 0 μF,
if V R ? 1.5V, then V IN = 2.5V
I OUT = 100 mA, f = 1 kHz, C OUT =
1 μ F (X7R Ceramic), V OUT = 2.5V
Note 1:
2:
3:
4:
5:
The minimum V IN must meet two conditions: V IN ??? 2.0V and V IN ??? (V R + 1.0V).
V R is the nominal regulator output voltage. For example: V R = 1.8V, 2.5V, 3.0V, 3.3V, or 5.0V.
The input voltage V IN = V R + 1.0V or Vi IN = 2.0V (whichever is greater); I OUT = 100 μA.
TCV OUT = (V OUT-HIGH - V OUT-LOW ) *10 6 / (V R * ? Temperature), V OUT-HIGH = highest voltage measured over the
temperature range. V OUT-LOW = lowest voltage measured over the temperature range.
Load regulation is measured at a constant junction temperature using low duty cycle pulse testing. Changes in output
voltage due to heating effects are determined using thermal regulation specification TCV OUT .
Dropout voltage is defined as the input to output differential at which the output voltage drops 2% below its measured
value with an applied input voltage of V R + 1.0V or 2.0V, whichever is greater.
? 2010 Microchip Technology Inc.
DS22053C-page 3
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