MIC5203 Datasheet, PDF (3/7 Pages) Micrel Semiconductor – μCap™ 80mA Low-Dropout Voltage Regulator

MIC5203
Micrel
Electrical Characteristics
V_IN = V_OUT + 1V; I_L = 1mA; C_L = 0.47µF; V_EN ≥ 2.0V; T_J = 25°C, bold values indicate –40°C ≤ T_J ≤ +125°C; unless noted.
Symbol
Parameter
Conditions
Min Typ Max
Units
V_O
Output Voltage Accuracy
–3
3
%
–4
4
%
∆V_O/∆T
∆V_O/V_O
Output Voltage Temp. Coefficient
Line Regulation
Note 4
V_IN = V_OUT + 1V to 16V
50
0.008
200 ppm/°C
0.3
%
0.5
%
∆V_O/V_O
Load Regulation
I_L = 0.1mA to 80mA, Note 5
0.08 0.3
%
0.5
%
V_IN–V_O
Dropout Voltage, Note 6
I_Q
I_GND
Quiescent Current
Ground Pin Current, Note 7
I_GNDDO
Ground Pin Current at Dropout
I_LIMIT
Current Limit
∆V_O/∆P_D
Thermal Regulation
Enable Input
I_L = 100µA
I_L = 20mA
I_L = 50mA
I_L = 80mA
V_EN ≤ 0.4V (shutdown)
I_L = 100µA, V_EN ≥ 2.0V (active)
I_L = 20mA, V_EN ≥ 2.0V (active)
I_L = 50mA, V_EN ≥ 2.0V (active)
I_L = 80mA, V_EN ≥ 2.0V (active)
V_IN = V_OUT(nominal) – 0.5V, Note 7
V_OUT = 0V
Note 8
20
mV
200 350 mV
250
mV
300 600 mV
0.01 10
µA
180
µA
225 750
µA
850
µA
3
1800 3000 µA
200 300
µA
180 250 mA
0.05
%/W
V_IL
Enable Input Voltage Level
logic Low (off)
V_IH
logic high (on)
I_IL
Enable Input Current
V_IL ≤ 0.6V
I_IH
V_IH ≥ 2.0V
0.6
µA
2.0
µA
0.01
1
µA
15
50
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 is 250°C/W for
the SOT-143 and 220°C/W for the SOT-23-5 mounted on a printed circuit board.
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.
December 1998
3-143