CAT6243_15 Datasheet, PDF (4/15 Pages) ON Semiconductor – 1 Amp Adjustable CMOS LDO Voltage Regulator

CAT6243
Table 5. ELECTRICAL CHARACTERISTICS (V_IN = (V_OUT + 1 V) or V_{IN_MIN}, whichever is higher, C_IN = 1 mF, C_OUT = 2.2 mF, for
typical values T_A = 25°C, for Bold values T_A = −40°C to 85°C; unless otherwise noted.)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
INPUT / OUTPUT
V_OUT
Output Voltage Range CAT6243−ADJ
CAT6243DC
0.8
4.5
V
0.8
5.0
V_OUT−ACC Output Voltage Accuracy
Initial accuracy, I_OUT = 1 mA
CAT6243−ADJ
−2
CAT6243DC
−2
CAT6243DC
−3
%
+2
+2
+3
V_ADJ
TC_OUT
Voltage at ADJ input
Output Voltage Temp. Coefficient
CAT6243−ADJ
CAT6243DC
0.784
0.8
0.816
V
ppm/°C
25
50
I_OUT
Output Current
0.0001
1
A
V_R−LINE
Line Regulation
V_IN = V_OUT + 1.0 V to
V_IN(max), I_OUT = 10 mA
−0.2
±0.05
0.2
%/V
V_IN = V_OUT + 1.0 V to
V_IN(max), I_OUT = 10 mA
−0.35
0.35
V_R−LOAD Load Regulation
I_OUT = 100 mA to 1000 mA
1.5
2
%
I_OUT = 100 mA to 1000 mA
3
V_DO
V_OUT = 1.2 V
V_OUT = 2.5 V
CAT6243−ADJ
CAT6243DC
I_OUT = 300 mA
T_A = 25°C
600
mV
110
130
V_OUT = 3.3 V
85
V_OUT = 1.2 V
CAT6243−ADJ I_OUT = 1 A
625
CAT6243DC T_A = 25°C
650
V_OUT = 2.5 V
CAT6243−ADJ
350
CAT6243DC
400
I_ADJ
I_GND
I_GND−SD
V_OUT = 3.3 V
ADJ Input Current
Ground Current
Shutdown Ground Current
CAT6243−ADJ
CAT6243DC
I_OUT = 0 mA
I_OUT = 0 mA
I_OUT = 1000 mA
I_OUT = 1000 mA
V_EN < 0.4 V
275
100
nA
70
mA
100
140
200
250
mA
2
5
ISC
Output short circuit current limit
PSRR AND NOISE
V_OUT = 0 V
900
mA
PSRR
Power Supply Rejection Ratio
CAT6243
f = 1 kHz, BYP = 470 pF,
I_OUT = 10 mA
54
dB
f = 20 kHz, BYP = 470 pF,
42
I_OUT = 10 mA
e_N
Output Noise Voltage for 1.8 V output
BW = 10 Hz to 100 kHz
45
BYP = 470 pF, I_OUT = 10 mA
mVrms
UVLO, R_OUT AND ESR
V_UVLO
Under voltage lockout threshold
1.65
1.75
V
R_OUT−SH ON resistance of Discharge Transistor
150
W
ESR
C_OUT equivalent series resistance
5
500
mW
7. Performance guaranteed over the indicated operating temperature range by design and/or characterization tested at T_J = T_A = 25_C. Low
duty cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible.
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