MIC5205 Datasheet, PDF (3/12 Pages) Micrel Semiconductor – 150mA Low-Noise LDO Regulator

MIC5205
Micrel
Electrical Characteristics
V_IN = V_OUT + 1V; I_L = 100µA; C_L = 1.0µF; V_EN ≥ 2.0V; T_J = 25°C, bold values indicate –40°C ≤ T_J ≤ +125°C; unless noted.
Symbol
Parameter
Conditions
Min Typical Max
Units
V_O
Output Voltage Accuracy
variation from specified V_OUT
–1
1
%
–2
2
%
∆V_O/∆T
Output Voltage
Temperature Coefficient
Note 4
40
ppm/°C
∆V_O/V_O
Line Regulation
V_IN = V_OUT + 1V to 16V
0.004 0.012 % / V
0.05 % / V
∆V_O/V_O
Load Regulation
I_L = 0.1mA to 150mA, Note 5
0.02 0.2
%
0.5
%
V_IN – V_O
Dropout Voltage, Note 6
I_L = 100µA
I_L = 50mA
I_L = 100mA
I_L = 150mA
10
50
mV
70
mV
110 150 mV
230 mV
140 250 mV
300 mV
165 275 mV
350 mV
I_GND
I_GND
Quiescent Current
Ground Pin Current, Note 7
V_EN ≤ 0.4V (shutdown)
V_EN ≤ 0.18V (shutdown)
V_EN ≥ 2.0V, I_L = 100µA
I_L = 50mA
I_L = 100mA
I_L = 150mA
0.01
1
µA
5
µA
80
125
µA
150
µA
350 600
µA
800
µA
600 1000 µA
1500 µA
1300 1900 µA
2500 µA
PSRR
I_LIMIT
∆V_O/∆P_D
e_no
Ripple Rejection
Current Limit
Thermal Regulation
Output Noise
frequency = 100Hz, I_L = 100µA
V_OUT = 0V
Note 8
I_L = 50mA, C_L = 2.2µF,
470pF from BYP to GND
75
dB
320 500 mA
0.05
%/W
260
nV/ Hz
ENABLE Input
V_IL
Enable Input Logic-Low Voltage
regulator shutdown
0.4
V
0.18
V
V_IH
Enable Input Logic-High Voltage
regulator enabled
I_IL
Enable Input Current
I_IH
V_IL ≤ 0.4V
V_IL ≤ 0.18V
V_IH ≥ 2.0V
V_IH ≥ 2.0V
2.0
V
0.01 –1
µA
–2
µA
2
5
20
µA
25
µA
Note 1.
Note 2.
Note 3:
Note 4:
Note 5:
Note 6:
Note 7:
Note 8:
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-
xxBM5 (all versions) is 220°C/W mounted on a PC board (see “Thermal Considerations” section 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.
June 2000
3
MIC5205