CM1582
3A LOW DROPOUT VOLTAGE REGULATOR
2002/02/05
Preliminary Rev. 1
Champion Microelectronic Corporation
Page 4
ELECTRICAL CHARACTERISTICS
Electrical Characteristics at IOUT = 0mA, and TJ = +25℃; unless otherwise noted
CM1582
Parameter
Device
Test Conditions
Min.
Typ.
Max.
Unit
CM1582D
VCONTROL = 3.3V, VPOWER = 2.5V
1.792
1.800
1.818
V
CM1582K
VCONTROL = 5.0V, VPOWER = 3.3V
2.474
2.500
2.525
V
CM1582S
VCONTROL = 5.0V, VPOWER = 4.1V
3.267
3.300
3.333
V
Output Voltage
CM1582ZJ
VCONTROL = 7.0V, VPOWER = 5.8V
4.950
5.000
5.050
V
CM1582D
VCONTROL = 3.3V, VPOWER = 2.5V
1.771
1.800
1.829
V
CM1582K
VCONTROL = 5.0V, VPOWER = 3.3V
2.460
2.500
2.540
V
CM1582S
VCONTROL = 5.0V, VPOWER = 4.1V
3.247
3.300
3.353
V
Output Voltage
CM1582ZJ
VCONTROL = 7.0V, VPOWER = 5.8V
IOUT = 3A
4.920
5.000
5.080
V
VCONTROL = 5.0V, VPOWER = 3.3V (note1)
1.238
1.250
1.262
V
Reference Voltage CM1582(adj)
VCONTROL = (VOUT + 1.5V) to 12V, VPOWER = (VOUT +
0.8V) to 7V, IOUT = 10mA to 3A
1.230
1.250
1.270
V
Line Regulator (note 2)
1.5V+ VOUT <= VCONTROL <= 12V,
0.8V<= VPOWER - VOUT <= 5.5V
0.04
0.20
%
Load Regulation (note 2)
VCONTROL = VOUT + 2.5V, VPOWER = VOUT + 0.8V,
IOUT = 10mA to 3A
0.08
0.3
%
IOUT = 10mA
Dropout Voltage (Note 3)
VCONTROL - VOUT
VPOWER = VOUT + 0.8V
IOUT = 3A
1.00
1.15
1.15
1.30
V
IOUT = 10mA
Dropout Voltage (Note 3)
VPOWER - VOUT
VCONTROL = VOUT + 2.5V
IOUT = 3A
0.10
0.45
0.17
0.50
V
Adjust Pin Current
VCONTROL = 2.75V, VPOWER = 2.05V,
IOUT = 10mA
50
120
µA
Control Pin Current
VCONTROL = VOUT + 2.5V, VPOWER = VOUT + 0.8V,
IOUT = 10mA to 3A
80
135
mA
Current Limit
(VIN – VOUT ) = 1.5V
3
4
A
Minimum Load Current (Note 4)
VCONTROL = 5.0V, VPOWER = 3.3V
5
10
mA
Ripple Rejection (Note 5)
VCONTROL = VPOWER = VOUT + 2.5V,
VRIPPLE = 1VPP, IOUT = 2.3A
60
80
dB
Thermal Regulation
TA = 25℃
0.003
%/W
Note 1: Output voltage is set to be 2.5V.
Note 2: Line and load regulations are guaranteed up to maximum power dissipation determined by input/output differential and
the output current. However, the maximum power will not be available over the full input/output voltage range.
Note 3: The specifications represent the minimum input/output voltage required to maintain 1% regulation.
Note 4: The minimum load current is the minimum current required to maintain regulation. Normally the current in the resistor
divider used to set the output voltage is selected to meet the minimum load current requirement.
Note 5: These parameters, although guaranteed, are not tested in production prior to shipment.
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