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參數(shù)資料
| 型號： | MIC5252-3.0BMLTR |
| 廠商： | MICREL INC |
| 元件分類： | 固定正電壓單路輸出LDO穩(wěn)壓器 |
| 英文描述： | 3 V FIXED POSITIVE LDO REGULATOR, 0.25 V DROPOUT, PDSO6 |
| 封裝： | 2 X 2 MM, MLF-6 |
| 文件頁數(shù)： | 3/9頁 |
| 文件大?。?/td> | 642K |
| 代理商： | MIC5252-3.0BMLTR |
MIC5252
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 ............................... –65°C to +150°C
Lead Temperature (soldering, 5 sec.) ....................... 260°C
ESD
(4)
...........................................................................2kV
Micrel, Inc.
February 2005
3
M9999-020305
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
Parameter
Conditions
V
O
Output Voltage Accuracy
I
OUT
= 100μA
ΔV
LNR
Line Regulation
V
IN
= V
OUT
+ 1V to 6V
ΔV
LDR
Load Regulation
V
IN
– V
OUT
I
OUT
= 100μA
I
OUT
= 100mA
I
OUT
= 150mA
I
Q
Quiescent Current
V
EN
≤ 0.4V (shutdown)
I
GND
I
OUT
= 0mA
I
OUT
= 150mA
PSRR
Ripple Rejection; I
OUT
= 150mA
f = 10Hz, C
OUT
= 1.0μF, C
BYP
= 0.01μF
f = 10Hz, V
IN
= V
OUT
+ 0.3V
f = 10kHz, V
IN
= V
OUT
+ 0.3V
I
LIM
Current Limit
V
OUT
= 0V
e
n
Output Voltage Noise
C
OUT
= 1.0μF, C
BYP
= 0.01μF,
μV(rms)
f = 10Hz to 100kHz
Enable Input
V
IL
Enable Input Logic-Low Voltage
V
IN
= 2.7V to 5.5V, regulator shutdown
V
IH
Enable Input Logic-High Voltage
V
IN
= 2.7V to 5.5V, regulator enabled
I
EN
Enable Input Current
V
IL
≤ 0.4V, regulator shutdown
V
IH
≥ 1.6V, regulator enabled
Shutdown Resistance Discharge
Thermal Protection
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
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
(ambient temperature) is P
(max) = (T
(max)–T
)/
θ
. 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 MIC5252-x.xBM5 (all ver-
sions) 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 150mA. Changes in output voltage due to heating effects are covered by the thermal regulation specification.
7. Dropout Voltage is defined as the input-to-output differential at which the output voltage drops 2% below its nominal value measured at 1V differen-
tial. 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 cur-
rent.
Min
–1
–3
250
Typical
0.02
0.6
0.1
90
135
0.2
90
117
63
48
48
425
30
Max
1
3
0.2
1.5
5
150
200
250
1
150
200
Units
%
%
%
%
mV
mV
mV
mV
μA
μA
μA
dB
dB
dB
mA
I
OUT
= 0.1mA to 150mA
(6)
Dropout Voltage
(7)
Ground Pin Current
(8)
0.4
1
1
V
V
μA
μA
Ω
1.6
0.01
0.01
500
150
10
°C
°C
Operating Ratings
(2)
Input 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
SOT-23
(θ
JA
) .....................................................235°C/W
2x2 MLF
(θ
JA
) ..................................................90°C/W
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