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| 型号： | MIC5201-3.3YS TR |
| 厂商： | Micrel Inc |
| 文件页数： | 3/9页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 3.3V .2A SOT223 |
| 标准包装： | 1 |
| 稳压器拓扑结构： | 正，固定式 |
| 输出电压： | 3.3V |
| 输入电压： | 最高 26V |
| 电压 - 压降（标准）： | 0.27V @ 200mA |
| 稳压器数量： | 1 |
| 电流 - 输出： | 200mA |
| 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： | 标准包装 |
| 产品目录页面： | 1096 (CN2011-ZH PDF) |
| 其它名称： | 576-1251-6 |
MIC5201
Electrical Characteristics
V IN = V OUT + 1V; I L = 100 μ A; C L = 3.3 μ F; V EN ≥ 2.0V; T J = 25 ° C, bold values indicate –40 ° C ≤ T J ≤ +85 ° C; unless noted
Micrel, Inc.
Symbol
V O
Parameter
Output Voltage Accuracy
Condition
Variation from specified V OUT
Min
–1
Typ
Max
1
Units
%
–2
2
%
? V O / ? T
? V O /V O
Output Voltage Temperature Coef.
Line Regulation, Fixed
Note 2
V IN = V OUT + 1V to 26V
40
0.004
150
0.20
ppm/ ° C
%
0.40
%
? V O /V O
Line Regulation, Adjustable
V IN = V OUT + 1V to 16V
0.004
0.20
%
0.40
%
? V O /V O
Load Regulation
I L = 0.1mA to 200mA, Note 3
0.04
0.16
%
0.30
%
V IN – V O
I GND
I GND
PSRR
Dropout Voltage, Note 4
Quiescent Current
Ground Pin Current
Ripple Rejection
I L = 100 μ A
I L = 20mA
I L = 50mA
I L = 100mA
I L = 200mA
V ENABLE ≤ 0.7V (shutdown)
I L = 100 μ A
I L = 20mA
I L = 50mA
I L = 100mA
I L = 200mA
17
130
180
225
270
0.01
130
270
500
1000
3000
75
400
400
2000
mV
mV
mV
mV
mV
μ A
μ A
μ A
μ A
μ A
μ A
dB
I GNDDO
Ground Pin Current at Dropout
V IN = 0.5V less than specified V OUT ,
270
330
μ A
I L = 100 μ A, Note 5
I LIMIT
? V O / ? P D
e n
Current Limit
Thermal Regulation
Output Noise
V OUT = 0V
Note 6
280
0.05
100
500
mA
%/W
μ V
Enable Input
V IL
V IH
Input Voltage Level
Input Voltage Level
logic low (off)
logic high (on)
2.0
0.7
V
V
I IL
I IH
Enable Input Current
Enable Input Current
V IL ≤ 0.7V
V IH ≤ 2.0V
0.01
15
1
50
μ A
μ A
Reference (MIC5201 Adjustable Version Only)
V REF
Reference Voltage
1.223
1.242
1.255
V
1.217
1.267
V
I IL
Reference Voltage Temp. Coef.
20
ppm/ ° C
General Note: Devices are ESD sensitive. Handling precautions recommended.
Note 1:
Note 2:
Note 3:
Note 4:
Note 5:
Note 6:
Absolute maximum ratings indicate limits beyond which damage to the component may occur. Electrical specifications do not apply when
operating the device outside of its rated operating conditions. The maximum allowable power dissipation is a function of the maximum junction
temperature, T J(max) , the junction-to-ambient thermal resistance, θ JA , and the ambient temperature, T A . The maximum allowable power
dissipation at any ambient temperature is calculated using: P (max) = (T J(max) – A T ) ÷ θ JA . Exceeding the maximum allowable power dissipation
will result in excessive die temperature, and the regulator will go into thermal shutdown. The θ JC of the MIC5201-x.xBS is 15 ° C/W and θ JA for
the MIC5201BM is 160 ° C/W mounted on a PC board (see “Thermal Considerations” section for further details).
Output voltage temperature coefficient is defined as the worst-case voltage change divided by the total temperature range.
Regulation is measured at constant junction temperature using low duty cycle pulse testing. Parts are tested for load regulation in the load
range from 0.1mA to 200mA. Changes in output voltage due to heating effects are covered by the thermal regulation specification.
Dropout Voltage is defined as the input to output differential at which the output voltage drops 2% below its nominal value measured at 1V
differential.
Ground pin current is the regulator quiescent current plus pass transistor base current. The total current drawn from the supply is the sum of
the load current plus the ground pin current.
Thermal regulation is defined as the change in output voltage at a time “t” after a change in power dissipation is applied, excluding load or line
regulation effects. Specifications are for a 200mA load pulse at V IN = 26V for fixed and V IN = 16V for adjustable at t = 10ms.
June 2005
3
MIC5201
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