CAT6218 Datasheet, PDF (3/9 Pages) Catalyst Semiconductor – 300mA CMOS LDO Regulator

CAT6218
Table 3. ELECTRICAL OPERATING CHARACTERISTICS (Note 3)
(V_IN = V_OUT + 1.0 V, V_EN = High, I_OUT = 100 mA, C_IN = C_OUT = 1 mF, ambient temperature of 25°C (over recommended operating
conditions unless specified otherwise). Bold numbers apply for the entire junction temperature range.)
Symbol
Parameter
Conditions
Min Typ Max
Unit
V_OUT−ACC Output Voltage Accuracy
Initial accuracy for V_OUT ≥ 2.0 V
(Note 6)
−1.0
−2.0
+1.0
%
+2.0
TC_OUT
V_R−LINE
Output Voltage Temp. Coefficient
Line Regulation
V_IN = V_OUT + 1.0 V to 5.5 V
40
−0.2 ±0.1 +0.2
−0.4
+0.4
ppm/°C
%/V
V_R−LOAD Load Regulation
I_OUT = 100 mA to 300 mA
0.7
1.2
%
1.5
V_DROP Dropout Voltage (Note 4)
I_OUT = 300 mA
180 250
mV
300
I_GND
Ground Current
I_OUT = 0 mA
55
75
mA
90
I_GND−SD Shutdown Ground Current
I_OUT = 300 mA
V_EN < 0.4 V
80
1
mA
2
PSRR Power Supply Rejection Ratio
I_SC
T_ON
e_N
R_OUT−SH
R_EN
V_UVLO
Output short circuit current limit
Turn−On Time
Output Noise Voltage (Note 5)
Shutdown Switch Resistance
Enable pull−down resistor
Under−voltage lock out (UVLO)
threshold
f = 1 kHz, C_BYP = 10 nF
f = 20 kHz, C_BYP = 10 nF
V_OUT = 0 V
C_BYP = 10 nF
BW = 10 Hz to 100 kHz
64
dB
54
180
mA
150
ms
45
mVrms
250
W
2.5
MW
2.1
V
ESR
C_OUT equivalent series resistance
ENABLE INPUT
5
500
mW
V_HI
Logic High Level
V_IN = 2.3 to 5.5 V
1.8
V
V_IN = 2.3 to 5.5 V, 0°C to +125°C
1.6
junction temperature
V_LO
Logic Low Level
I_EN
Enable Input Current
THERMAL PROTECTION
V_IN = 2.3 to 5.5 V
V_EN = 0.4 V
V_EN = V_IN
0.4
V
0.15
1
mA
1.5
4
T_SD
Thermal Shutdown
160
°C
T_HYS
Thermal Hysteresis
10
°C
3. Specification for 2.80 V output version unless specified otherwise.
4. Dropout voltage is defined as the input−to−output differential at which the output voltage drops 2% below its nominal value measured at 1 V
differential. During test, the input voltage stays always above the minimum 2.3 V.
5. Specification for 1.8 V output version.
6. For V_OUT < 2.0 V, the initial accuracy is ±2% and across temperature ±3%.
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