参数资料
| 型号： | MIC5249-3.3YMM TR |
| 厂商： | Micrel Inc |
| 文件页数： | 3/7页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 3.3V .3A 8-MSOP |
| 标准包装： | 2,500 |
| 稳压器拓扑结构： | 正，固定式 |
| 输出电压： | 3.3V |
| 输入电压： | 最高 6V |
| 电压 - 压降（标准）： | 0.34V @ 300mA |
| 稳压器数量： | 1 |
| 电流 - 输出： | 300mA |
| 电流 - 限制（最小）： | 300mA |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 8-MSOP |
| 包装： | 带卷 (TR) |
| 其它名称： | MIC5249-3.3YMMTR MIC5249-3.3YMMTR-ND |
Micrel, Inc.
Absolute Maximum Ratings (1)
Supply Voltage (V IN ) ............................................. 0V to +7V
Enable Voltage (V EN )............................................ 0V to +7V
Power Dissipation (P D ). .......................... Internally Limited (3)
Junction Temperature (T J ) ........................ –40°C to +125°C
Lead Temperature (soldering, 5sec.)......................... 260°C
Storage Temperature (T s ) ......................... –65°C to +150°C
ESD Rating (4) ................................................. ESD Sensitive
MIC5249
Operating Ratings (2)
Supply voltage (V IN ) ........................................ +2.7V to +6V
Enable Voltage (V EN ).............................................. 0V to V IN
Junction Temperature (T J ) ........................ –40°C to +125°C
Package Thermal Resistance
MSOP ( θ JA )......................................................160°C/W
Electrical Characteristics
V IN = V OUT + 1V; C OUT = 2.2μF, I OUT = 100μA; T J = 25°C, bold values indicate –40°C to +125°C, unless noted.
Parameter
Output Voltage Accuracy
Line Regulation
Load Regulation
Condition
Variation from nominal V OUT
V IN = V OUT +1V to 6V
I OUT = 0.1mA to 300mA
Min.
–1.0
–3.0
–0.3
Typ.
0.02
1.5
Max.
+1.0
+3.0
+0.3
3.0
Units
%
%/V
%
I OUT = 100μA
1
Dropout Voltage
Ground Pin Current
Ground Pin Current in Shutdown
Ripple Rejection
I OUT = 150mA
I OUT = 300mA
I OUT = 0mA
I OUT = 300mA
V EN < 0.4V (Regulator OFF)
f = 120Hz, C OUT = 2.2μF
160
340
85
100
0.35
65
225
275
500
600
150
200
1
mV
μA
μA
dB
Current Limit
V OUT = 0V
300
440
mA
Enable Input
Enable Input Voltage
Enable Input Current
Logic low (regulator shutdown)
Logic high (regulator enabled)
V IL < 0.4V (regulator shutdown)
V IH > 1.6V (regulator enabled)
1.6
0.01
0.01
0.4
V
μA
Delay Input
Delay Pin Current Source
0.55
1
μA
Delay Pin Threshold Voltage
Threshold for RESET = Logic high
1.40
V
RESET Output
V TH
V OL
I RESET
Low threshold, % of V OUT (Flag ON)
High threshold, % of V OUT (Flag OFF)
RESET output logic – low voltage; I RESET = 100μA output
in fault condition
Flag leakage current, Flag OFF
89
91
93
0.020
0.01
96
0.1
%
V
μA
Notes:
1.
2.
3.
4.
Exceeding the absolute maximum rating may damage the device.
The device is not guaranteed to function outside its operating rating.
The maximum allowable power dissipation of any T A (ambient temperature) is P D(max) = (T J(max) – T A ) ÷ θ JA . Exceeding the maximum allowable power
dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown.
Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k Ω in series with 100pF.
March 2012
3
M9999-030812
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