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参数资料
| 型号： | MIC5259-3.0BD5 TR |
| 厂商： | Micrel Inc |
| 文件页数： | 3/11页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 3V .3A TSOT23-5 |
| 标准包装： | 3,000 |
| 稳压器拓扑结构： | 正，固定式 |
| 输出电压： | 3V |
| 输入电压： | 最高 6V |
| 电压 - 压降（标准）： | 0.3V @ 300mA |
| 稳压器数量： | 1 |
| 电流 - 输出： | 300mA |
| 电流 - 限制（最小）： | 350mA |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-5 细型，TSOT-23-5 |
| 供应商设备封装： | TSOT-23-5 |
| 包装： | 带卷 (TR) |
| 其它名称： | MIC5259-3.0BD5TR MIC5259-3.0BD5TR-ND |
Micrel, Inc.
Absolute Maximum Ratings (1)
Supply Input Voltage (V IN ).................................... 0V to +7V
Enable Input Voltage (V EN )................................... 0V to +7V
Power Dissipation (P D ) ........................... Internally Limited (3)
Junction Temperature (T J ) ........................ –40°C to +125°C
Storage Temperature (T S )........................... –65°C to 150°C
Lead Temperature (soldering, 5sec.)......................... 260°C
EDS Rating (4) .................................................................. 2kV
MIC5259
Operating Ratings (2)
Supply voltage (V IN ) ........................................ +2.7V to +6V
Enable Input Voltage (V EN )..................................... 0V to V IN
Junction Temperature (T J ) ........................ –40°C to +125°C
Thermal Resistance
TSOT-23 ( θ JA )..................................................235°C/W
2x2 MLF ? ( θ JA )...................................................90°C/W
Electrical Characteristics (5)
V IN = V OUT + 1V; V EN = V IN; I OUT = 100μA; T J = 25°C, bold values indicate –40°C< T J < +125°C, unless noted.
Symbol
V O
? V LRN
? V LDR
V IN – V OUT
Parameter
Output Voltage Accuracy
Line Regulation
Load Regulation
Dropout Voltage (7)
Condition
I OUT = 100μA
V IN = V OUT + 1V to 6V
I OUT = 0.1mA to 300mA(6)
I OUT = 150mA
Min
–1.5
–3
–0.3
Typ
0.02
0.6
150
Max
1.5
3
0.3
3.0
Units
%
%
%/V
%
mV
I OUT = 300mA
300
500
550
mV
mV
I Q
I GND
PSRR
Quiescent Current
Ground Pin Current (8)
Ripple Rejection; I OUT = 150mA
V EN ≤ 0.4V (shutdown)
I OUT = 0mA
I OUT = 300mA
f = 10Hz, C OUT = 1.0μF, C BYP = 0.01μF
0.2
105
120
65
1
150
250
μA
μA
μA
dB
f = 10Hz, V IN = V OUT + 0.3V
f = 10kHz, V IN = V OUT + 0.3V
53
53
dB
dB
I LIM
e n
Current Limit
Output Voltage Noise
V OUT = 0V
C OUT 1.0μF, C BYP = 0.01μF,
f = 10Hz to 100kHz
350
475
30
mA
μV (RMS)
Enable Input
V IL
V IH
Enable Input Logic-Low Voltage
Enable Input Logic-High Voltage
V IN = 2.7 to 5.5V, regulator shutdown
V IN = 2.7V to 5.5V, regulator enabled
1.6
0.4
V
V
I EN
Enable Input Current
V IL ≤ 0.4V, regulator shutdown
V IH ≥ 1.6V, regulator enabled
0.01
0.01
1
1
μA
μA
Shutdown Resistance Discharge
Thermal Protection
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
500
150
10
?
°C
°C
Notes:
1. Exceeding the absolute maximum rating may damage the device.
2. The device is not guaranteed to function outside its operating rating.
3. 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. The θ JA of the MIC5259-x.xBM5 (all versions) is
235°C/W on a PC board. See “Thermal Considerations” section for further details.
4. Devices are ESD sensitive. Handling precautions recommended.
5. Specification for packaged product only.
6. 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 300mA. Changes in output voltage due to heating effects are covered by the thermal regulation speci ? cation.
7. Dropout voltage is de ? ned as the input-to-output differential at which the output voltage drops 2% below its nominal value measured at 1V differential.
For outputs below 2.7V, dropout voltage is the input-to-output voltage differential with the minimum input voltage 2.7V. Minimum input operating
voltage is 2.7V.
8. Ground pin current is the regulator quiescent current. The total current drawn from the supply is the sum of the load current plus the ground pin
current.
September 2006
3
M9999-091406
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