MIC5247 Datasheet, PDF (3/10 Pages) Micrel Semiconductor – 150mA Low-Voltage μCap Linear Regulator Preliminary Information

MIC5247
Micrel
Electrical Characteristics
V_IN = V_OUT + 1.0V; V_IN = V_EN; I_OUT = 100µA; T_J = 25°C, bold values indicate –40°C ≤ T_J ≤ +125°C; unless noted.
Symbol
Parameter
Conditions
Min Typical Max
V_O
Output Voltage Accuracy
I_OUT = 0mA
–1
1
–2
2
∆V_LNR
∆V_LDR
V_IN – V_OUT
I_Q
I_GND
Line Regulation
Load Regulation
Load Regulation for 1.5V only
Dropout Voltage
Quiescent Current
Ground Pin Current, Note 6
PSRR
Power Supply Rejection
V_IN = V_OUT + 0.1V to 6V
I_OUT = 0.1mA to 150mA, Note 4
I_OUT = 0.1mA to 150mA, V_OUT = 1.5V
I_OUT = 150mA (see Note 5)
V_EN ≤ 0.4V (shutdown)
I_OUT = 0mA
I_OUT = 150mA
f ≤ 1kHz
–0.3
+0.3
2
3
3
4
150
0.2
1
85
150
85
150
50
I_LIM
Current Limit
e_n
Output Voltage Noise
V_OUT = 0V
C_OUT = 10µF, C_BYP = 0.01µF,
f = 10Hz to 100kHz
160 300
30
Enable Input
V_IL
Enable Input Logic-Low Voltage
V_IN = 2.7V to 5.5V, regulator shutdown
0.8
0.4
V_IH
Enable Input Logic-High Voltage
V_IN = 2.7V to 5.5V, regulator enabled
1.6
1
I_EN
Enable Input Current
V_IL ≤ 0.4V
0.01
V_IH ≥ 1.6V
0.01
Shutdown Resistance Discharge
500
Thermal Protection
Thermal Shutdown Temperature
150
Thermal Shutdown Hysteresis
10
Units
%
%
%/V
%
%
mV
µA
µA
µA
dB
mA
µVrms
V
V
µA
µA
Ω
°C
°C
Note 1.
Note 2.
Note 3.
Note 4.
Note 5.
Note 6.
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 a1V
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 plus pass transistor base current. The total current drawn from the supply is the sum of
the load current plus the ground pin current.
November 6, 2000
3
MIC5247