MIC49150 Datasheet, PDF (3/12 Pages) Micrel Semiconductor – 1.5A Low Voltage LDO Regulator w/Dual Input Voltages

MIC49150
Absolute Maximum Ratings (Note 1)
Supply Voltage (V_IN) ....................................................... 8V
Bias Supply Voltage (V_BIAS) ............................................ 8V
Enable Input Voltage (V_EN) ............................................. 8V
Power Dissipation .................................... Internally Limited
ESD Rating, Note 3 ...................................................... 2kV
Micrel
Operating Ratings (Note 2)
Supply Voltage (V_IN) ....................................... 1.4V to 6.5V
Bias Supply Voltage (V_BIAS) ............................... 3V to 6.5V
Enable Input Voltage (V_EN) .................................. 0V to V_IN
Junction Temperature Range ............. –40°C ≤T_J ≤ +125°C
Package Thermal Resistance
MSOP-8 (θ_JA) ...................................................... 80°C/W
S-PAK(θ_JC) ............................................................ 2°C/W
Electrical Characteristics
T_A = 25°C with V_BIAS = V_OUT +2.1V; V_IN = V_OUT + 1V; bold values indicate –40°C < T_J < +125°C, Note 4; unless otherwise specified.
Parameter
Conditions
Min Typ Max Units
Output Voltage Accuracy
At 25°C
Over temperature range
–1
+1
%
–2
+2
%
Line Regulation
Load Regulation
V_IN = 3.0V to 6.5V
I_L = 0mA to 1.5A
–0.1 0.01 +0.1 %/V
0.2
1
%
1.5
%
Dropout Voltage (V_IN - V_OUT)
I_L = 750mA
I_L = 1.5A
130 200 mV
300 mV
280 400 mV
500 mV
Dropout Voltage (V_BIAS - V_OUT)
Note 4
I_L = 750mA
I_L = 1.5A
1.3
V
1.65 1.9
V
2.1
V
Ground Pin Current, Note 5
I_L = 0mA
I_L = 1.5A
15
mA
15
25
mA
30
mA
Ground Pin Current in Shutdown V_EN ≤ 0.6V, (I_BIAS + I_CC), Note 6
0.5
1
µA
2
µA
Current thru V_BIAS
Current Limit
I_L = 0mA
I_L = 1.5A
MIC49150
9
15
mA
25
mA
32
mA
1.6
2.3
3.5
A
4
A
Enable Input, Note 6
Enable Input Threshold
(Fixed Voltage only)
Regulator enable
Regulator shutdown
1.6
V
0.6
V
Enable Pin Input Current
Independent of state
0.1
1
µA
Reference
Reference Voltage
0.891 0.9 0.909 V
0.882
0.918 V
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. Human body model, 1.5k in series with 100pF.
For V_OUT ≤1V, V_BIAS dropout specification does not apply due to a minimum 3V V_BIAS input.
I_GND = I_BIAS + (I_IN – I_OUT). At high loads, input current on V_IN will be less than the output current, due to drive current being supplied by V_BIAS.
Fixed output voltage versions only.
January 2002
3
MIC49150