CM2855 Datasheet, PDF (4/10 Pages) List of Unclassifed Manufacturers – 300MA CMOS LDO WITH EN & PG

CM2855
300mA CMOS LDO WITH EN & PG
ELECTRICAL CHARACTERISTICS
T_A = +25℃; V_IN = V_IN(MIN) unless otherwise noted
Parameter
Symbol
Test Conditions
CM2855
Min.
Typ. Max.
Input Voltage
V_IN
Note 2
7
Output Voltage Accuracy
V_OUT
I_O = 1mA
-2.5
2.5
Dropout Voltage
V_DROPOUT
I_O = 300mA,
V_OUT=V_O(NOM)-2.5%,
1.2V< V_O(NOM)<=2.0V
2.0V< V_O(NOM)<=2.5V
2.5V< V_O(NOM)
1300
800
300
Output Current
I_O
V_OUT > 1.2V
300
Current Limit
I_LIM
V_OUT > 1.2V
800
Short Circuit Current
I_SC
V_OUT < 0.8V (Note 3)
150
Quiescent Current
I_Q
I_O = 0mA
30
35
Ground Pin Current
I_GND
I_O = 1mA to 300mA
30
35
Bandgap Reference
V_BG
V_O = V_BG, load = 10mA
1.168 1.176 1.184
Line Regulation
REG_LINE
I_OUT=1mA, V_IN=V_OUT+1 to
V_OUT < 2.0V
V_OUT+2
2.0V<V_OUT < 3.0V
3.0V<V_OUT
-0.1
-.015
-0.3
0.02
0.03
0.06
0.1
0.15
0.3
Load Regulation
REG_LOAD
I_O=1mA to 300mA
0.2
1
Over Temperature Shutdown
OTS
150
Over Temperature Hysteresis OTH
30
V_OUT Temperature Coefficient
TC
25
f=1kHz
60
Power Supply Rejection
PSRR
I_O = 100mA
f=10kHz
50
C_O=2.2µF ceramic
f=100kHz
40
f=10Hz to 100kHz
Output Voltage Noise
eN
I_O = 10mA
C_O=2.2µF
30
EN Input Bias Current
I_EH
I_EL
V_EN=V_IN, V_IN=2.7V to 7V
V_EN=0V, V_IN=2.7V to 7V
0.1
1.0
3.0
EN Input Threshold
V_EH
V_EL
V_IN=2.7V to 7V
V_IN=2.7V to 7V
V_IN/2+0.8V V_IN
0 V_IN/2-0.8V
Shutdown Supply Current
I_SD
V_IN=5.0V, V_OUT=0V, V_EN < V_EL
2.0
Shutdown Output Voltage
V_{O, SD}
I_O=300mA
0
0.1
PG Leakage Current
I_LC
V_PG = 7V
1
PG Voltage Rating
V_PG
V_OUT in regulation
7
PG Low Threshold
% of V_O (PG ON)
89.5
PG High Threshold
% of V_O (PG OFF)
96.5
PG Voltage Low
V_OL
I_SINK = 2mA
0.1
Delay Time to PG (Note 3)
t_DELAY
V_IN = 5V
7.8
V_IN = 3V
3.8
Note 2. V_IN(MIN) = V_OUT + V_DROPOUT
Note 3. Guaranteed by Design, not 100% test. VIN start time needs to be less than 2ms.
Note 4. Short Circuit Current and Current limit value will increase as input voltage is larger than V_IN(MIN)
Unit
V
%
mV
mA
mA
mA
A
A
V
%
%
%
%
ppm/
dB
Vrms
A
A
V
V
A
V
A
V
%
%
V
ms
ms
2004/6/01 Rev. 1.2
Champion Microelectronic Corporation
Page 4