MIC5311 Datasheet, PDF (4/11 Pages) Micrel Semiconductor – LowQ Mode Dual 300mA LDO

Micrel, Inc.
MIC5311
Electrical Characteristics (LowQ™ Mode)
V_IN = V_OUT + 1.0V for higher output of the regulator pair; LowQ™ = 0V; 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
Conditions
Variation from nominal V_OUT
Min Typ Max Units
-2.0
+2.0 %
-3.0
+3.0 %
Line Regulation
Load Regulation
V_IN = V_OUT +1V to 5.5V
I_OUT = 100µA to 10mA
0.02 0.3 %/V
0.6
0.1 0.5 %
Dropout Voltage
I_OUT = 10mA
100 200 mV
Ground Pin Current
Ground Pin Current in
Shutdown
Ripple Rejection
Current Limit
Both outputs enabled
V_EN < 0.2V
f = up to 1kHz; C_OUT = 2.2µF ceramic; C_BYP = 10nF
f = 1kHz – 20kHz; C_OUT = 2.2µF ceramic; C_BYP = 10nF
V_OUT = 0V (Both regulators)
7
10 µA
12 µA
0.01 1.0 µA
45
dB
30
dB
40 75 150 mA
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.
4. Response time defined as the minimum hold-off time after the LowQ™ command before applying load transients.
February 2005
4
M9999-021105
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