MIC5206 Datasheet, PDF (4/8 Pages) Micrel Semiconductor – 150mA Low-Noise LDO Regulator

MIC5206
Micrel
Note 1:
Note 2.
Note 3:
Note 4:
Note 5:
Note 6:
Note 7:
Note 8:
Note 9:
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 at 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
MIC5205-x.xBM5 (all versions) is 220°C/W, and the MIC5206-x.xBMM (all versions) is 200°C/W, mounted on a PC board (see “Thermal
Considerations” for further details).
Output voltage temperature coefficient is defined as the worst case voltage change divided by the total temperature range.
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.
Dropout Voltage is defined as the input to output differential at which the output voltage drops 2% below its nominal value measured at 1V
differential.
Ground pin current is the regulator quiescent current plus pass transistor base current. The total current drawn from the supply is the sum of
the load current plus the ground pin current.
Thermal regulation is defined as the change in output voltage at a time “t” after a change in power dissipation is applied, excluding load or line
regulation effects. Specifications are for a 150mA load pulse at V_IN = 16V for t = 10ms.
The error flag comparator includes 3% hysteresis.
Typical Characteristics
Power Supply
Rejection Ratio
0
V_IN = 6V
-20
V_OUT = 5V
-40
-60
-80
I_OUT = 100µA
C_OUT = 1µF
-100
1E1+01 11E0+02 1E1+k3 11E0+k4 11E0+05k 1E1M+6 1E0M+7
FREQUENCY (Hz)
Power Supply
Rejection Ratio
0
V_IN = 6V
-20
V_OUT = 5V
-40
-60
-80
I_OUT = 1mA
C_OUT = 1µF
-100
1E1+01 11E0+02 1E1+k3 11E0+k4 11E0+05k 1E1M+6 1E0M+7
FREQUENCY (Hz)
MIC5206
Power Supply
Rejection Ratio
0
V_IN = 6V
-20 ^VOUT ^{= 5V}
-40
-60
I_OUT = 100µA
-80
C_OUT = 2.2µF
-100
C_BYP = 0.01µF
1E1+01 11E0+02 1E1+k3 11E0+k4 11E0+05k 1E1M+6 1E0M+7
FREQUENCY (Hz)
Power Supply
Rejection Ratio
0
V_IN = 6V
-20 ^VOUT ^{= 5V}
-40
-60
I_OUT = 1mA
-80
C_OUT = 2.2µF
C_BYP = 0.01µF
-100
1E1+01 11E0+02 1E1+k3 11E0+k4 11E0+05k 1E1M+6 1E0M+7
FREQUENCY (Hz)
4
Power Supply Ripple Rejection
vs. Voltage Drop
60
50
1mA
40
30
10mA I_OUT = 100mA
20
10
C_OUT = 1µF
0
0
0.1 0.2 0.3 0.4
VOLTAGE DROP (V)
Power Supply Ripple Rejection
vs. Voltage Drop
100
90
80
1mA
70
60
50
I_OUT = 100mA
40
10mA
30
20
C_OUT = 2.2µF
10
C_BYP = 0.01µF
0
0
0.1 0.2 0.3 0.4
VOLTAGE DROP (V)
January 2000