MIC2811-4GJLYML Просмотр технического описания (PDF) - Micrel
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MIC2811-4GJLYML Datasheet PDF : 17 Pages
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Micrel, Inc.
MIC2811/2821
Electrical Characteristics - LDO1 and LDO2
VIN = DVIN = VOUTMAX + 1V, VIN1 = VEN1 = VLDO1 + 1V; VIN2 = VEN2 = VLDO2 + 1V ; COUTLDO1 = COUTLDO2 = 2.2µF, ILDO1 = ILDO2 = 100µA; TJ =
25°C, VEN = VEN3 = GND, bold values indicate –40°C< TJ < +125°C; unless noted.
Parameter
Conditions
Min Typ Max Units
Output Voltage Accuracy
-2.0
+2.0
%
-3.0
+3.0
%
Output Current Capability
Load Regulation
VIN > 1.8V
IOUT = 100µA to 300mA
300
mA
0.3
1.5
%
Line Regulation
VIN1(2) = VLDO1(2) +1V to 5.5V
0.02
0.3
%/V
Dropout Voltage
IOUT = 300mA @ Vout > 1.5V
142
300
mV
Current Limit
Ripple Rejection
VOUT = 0V
f = up to 1kHz; COUT = 2.2µF; CBYP = 0.1µF
f = 20kHz; COUT = 2.2µF; CBYP = 0.1µF
350 650
900
mA
70
dB
44
dB
Output Voltage Noise
COUT = 2.2µF; CBYP = 0.1µF; 10Hz to 100KHz
30
µVRMS
Electrical Characteristics – LDO3
VIN = DVIN = VEN3 = VLDO3 +1 V; COUT3 = 2.2µF; IOUTLDO3 = 100µA; TJ = 25°C, VEN1 = VEN2 = GND
bold values indicate –40°C< TJ < +125°C; unless noted.
Parameter
Conditions
Min Typ Max Units
Output Voltage Accuracy
-2.0
+2.0
%
-3.0
+3.0
%
Line Regulation
VIN = VOUT +1V to 5.5V; IOUT = 100µA
0.03
0.5
%/V
Load Regulation
Dropout Voltage
Ripple Rejection
Current Limit
Output Voltage Noise
IOUT = 100µA to 300mA @ 3.3V
IOUT = 300mA @ Vin = 2.7V
f = up to 1kHz; COUT = 2.2µF
f = 20kHz; COUT = 2.2µF
VOUT = 0V
COUT = 2.2µF, 10Hz to 100kHz
0.50
1.5
%
210
350
mV
45
dB
20
dB
350 600
980
mA
470
µVRMS
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 TA (ambient temperature) is PD(max) = (TJ(max) – TA) / θJA. Exceeding the maximum allowable power
dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown.
4. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF.
5. Specification for packaged product only.
April 2008
5
M9999-042208-A
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