CAT6218
ELECTRICAL OPERATING CHARACTERISTICS
V
IN
= V
OUT
+ 1.0V, V
EN
= High, I
OUT
= 100μA, C
IN
= C
OUT
= 1µF, ambient temperature of 25ºC (over recommended
operating conditions unless specified otherwise).
Bold numbers
apply for the entire junction temperature range.
Symbol Parameter
V
OUT-ACC
Output Voltage Accuracy
TC
OUT
V
R-LINE
V
R-LOAD
V
DROP
Output Voltage Temp. Coefficient
Line Regulation
Load Regulation
Dropout Voltage
V
IN
= V
OUT
+ 1.0V to 5.5V
I
OUT
= 100μA to 300 mA
I
OUT
= 300mA
I
OUT
= 0μA
I
OUT
= 300mA
I
GND-SD
PSRR
I
SC
T
ON
e
N
R
EN
V
UVLO
ESR
Shutdown Ground Current
Power Supply Rejection Ratio
Output short circuit current limit
Turn-On Time
Output Noise Voltage
(3)
Enable pull-down resistor
Under-voltage lock out (UVLO)
threshold
C
OUT
equivalent series resistance
V
IN
= 2.3 to 5.5V
V
IN
= 2.3 to 5.5V, 0ºC to
+125ºC junction temperature
V
IN
= 2.3 to 5.5V
V
EN
= 0.4V
V
EN
= V
IN
5
1.8
1.6
0.4
0.15
1.5
160
10
1
4
V
V
μA
V
EN
< 0.4V
f = 1kHz, C
BYP
= 10nF
f = 20kHz, C
BYP
= 10nF
V
OUT
= 0V
C
BYP
= 10nF
BW = 10Hz to 100kHz
64
54
180
150
45
250
2.5
2.1
500
-0.2
-0.4
0.7
180
55
80
1
2
μA
dB
mA
μs
μVrms
Ω
MΩ
V
mΩ
Conditions
Initial accuracy for V
OUT
≥
2.0V
(4)
Min
-1.0
-2.0
40
±0.1
+0.2
+0.4
1.2
1.5
250
300
75
90
μA
Typ
Max
+1.0
+2.0
Unit
%
ppm/ºC
%/V
%
mV
I
GND
Ground Current
R
OUT-SH
Shutdown Switch Resistance
Enable Input
V
HI
V
LO
I
EN
Logic High Level
Logic Low Level
Enable Input Current
Thermal Protection
T
SD
T
HYS
Thermal Shutdown
Thermal Hysteresis
ºC
ºC
Notes:
(1 Specification for 2.85V output version unless specified otherwise.
(2) Dropout voltage is defined as the input-to-output differential at which the output voltage drops 2% below its nominal value measured at
1V differential. During test, the input voltage stays always above the minimum 2.3V.
(3) Specification for 1.8V output version.
(4) For V
OUT
< 2.0V, the initial accuracy is
±2%
and across temperature
±3%.
©
Catalyst Semiconductor, Inc.
3
Doc. No. MD-10010 Rev. C
Characteristics subject to change without notice
CATALYST [ CATALYST SEMICONDUCTOR ]
