CM8563
1.5A LINEAR BUS TERMINATION REGULATOR
ABSOLUTE MAXIMUM RATINGS
Absolute maximum ratings are those values beyond which the
device could be permanently damaged.
VIN, VCCA, VDDQ to GND ......................….……... –0.3V to 6V
Lead Temperature (Soldering, 5 sec)……………….. 260°C
Storage Temperature …….............……..……. -65°C to 150°C
Thermal Resistance(θJC )….. ……….. .14°C/W (PSOP-8)
Thermal Resistance(θJC )….. ……… 15.7°C/W (SOP-8)
OPERATING RANGE (Note 1)
Junction Temperature Range (Note 2) ……………….. 0°C to 125°C
VCCA to GND ……………………………………………... 2.2V to 5.5V
VIN to GND ……………………………………………... 2.2V to VCCA
ELECTRICAL CHARACTERISTICS (Unless otherwise stated, these specifications apply T
A=25°C;
VCCA=VIN=+2.5V and VDDQ=+2.5V (Note 3))
maximum ratings are stress ratings only and functional device operation is not
implied.
CM8563
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VREF
VREF Voltage
IREFOUT=0mA
1.21
1.235
1.26
V
VOS
VOUT Output Voltage Offset
IOUT=0A
(Note 4)
-15
-20
0
15
20
mV
IOUT: 0A -> 1.5A
0.5
%
｜Δ
VLOAD｜
Load Regulation
(Note 5)
IOUT: 0A -> -1.5A
-0.5
%
ZVREF
VREF Output Impedance
IREF= -5uA to +5uA
5
kΩ
ZVDDQ
VDDQ Output Impedance
540
kΩ
ICCQ
Quiescent Current
IOUT=0A
(Note 6)
250
400
μ
A
Power Good (Note 7)
Note 1:
Operating range indicates conditions for which the device is intended to be functional, but does not guarantee specific
performance limits. For guaranteed specification and test conditions see Electrical Characteristics.
Note 2:
At elevated temperatures, devices must be derated based on the thermal resistance. The SO-8 package must be derated
atθJA = 151℃/W junction to ambient with no heat sink.
Note 3:
Limits are 100% production tested at 25℃. Limits over the operating temperature range are guaranteed through
correlation using Statistical Quality Control methods.
Note 4:
VOS = VREF – VOUT
Note 5:
Load regulation is tested by using a 10ms current pulse and measuring VOUT.
Note 6:
Quiescent current defined as the current flow into VCCA.
Note 7:
PG function but LP2995 does not have it. PG will be high as VTT is larger than 90% VREF, and PG will change to low
as VTT is lower than 85% VREF. PG also will be low as VTT is greater than 115% VREF, and PG will change to high as
VTT is lower than 110% VREF. It has both directions PG function.
2003/03/28
Champion Microelectronic Corporation
Page 4
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