MIC5246 Datasheet, PDF (3/12 Pages) Micrel Semiconductor – 150mA μCap CMOS LDO Regulator Preliminary Information

MIC5246
Micrel
Electrical Characteristics
V_IN = V_OUT + 1V, V_EN = V_IN; I_OUT = 100µA; 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
I_OUT = 0mA
–1
1
%
–2
2
%
∆V_LNR
∆V_LDR
V_IN – V_OUT
Line Regulation
Load Regulation
Dropout Voltage, Note 5
V_IN = V_OUT + 0.1V to 6V
I_OUT = 0.1mA to 150mA, Note 4
I_OUT = 100µA
I_OUT = 50mA
I_OUT = 100mA
I_OUT = 150mA
–0.3
0
0.3 %/V
2
3
%
1.5
5
mV
50
85
mV
100 150 mV
150 200 mV
250 mV
I_Q
I_GND
Quiescent Current
Ground Pin Current, Note 6
PSRR
Power Supply Rejection
I_LIM
Current Limit
Enable Input
V_EN ≤ 0.4V (shutdown)
I_OUT = 0mA
I_OUT = 150mA
f = 120Hz, C_OUT = 10µF
V_OUT = 0V
0.2
1
µA
85
150
µA
85
150
µA
50
dB
160 300
mA
V_IL
Enable Input Logic-Low Voltage
V_IN = 2.7V to 5.5V, regulator shutdown
0.8
0.4
V
V_IH
Enable Input Logic-High Voltage
V_IN = 2.7V to 5.5V, regulator enabled
1.6
1
V
I_EN
Enable Input Current
V_IL ≤ 0.4V
0.01
µA
V_IH ≥ 1.6V
0.01
µA
Shutdown Resistance Discharge
500
Ω
Thermal Protection
Thermal Shutdown Temperature
150
°C
Thermal Shutdown Hysteresis
10
°C
Error Flag
V_FLG
V_OL
I_FL
Low Threshold
High Threshold
Output Logic-Low Voltage
Flag Leakage Current
% of V_OUT (Flag ON)
% of V_OUT (Flag OFF)
I_L = 100µA, fault condition
flag off, V_FLG = 6V
90
%
96
%
0.02 0.4
V
0.01
µA
Note 1.
Note 2.
Note 3.
Note 4.
Note 5.
Note 6.
Note 7.
Exceeding the absolute maximum rating may damage the device.
The device is not guaranteed to function outside its operating rating.
Devices are ESD sensitive. Handling precautions recommended.
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. For outputs below 2.7V, dropout voltage is the input-to-output voltage differential with the minimum input voltage 2.7V. Minimum
input operating voltage is 2.7V.
Ground pin current is the regulator quiescent current. The total current drawn from the supply is the sum of the load current plus the ground
pin current.
The error flag is a function of the output voltage being 5% low and the detection of one of the following: overcurrent, overtemperature or
dropout. See “Applications Information” section for additional information.
June 2000
3
MIC5246