CAT6221 Datasheet, PDF (3/11 Pages) Catalyst Semiconductor – 300mA CMOS Dual LDO Regulator

CAT6221
ELECTRICAL OPERATING CHARACTERISTICS ⁽¹⁾
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
Conditions
V_OUT-ACC Output Voltage Accuracy
Initial accuracy
TC_OUT Output Voltage Temp. Coefficient
V_R-LINE Line Regulation
V_IN = V_OUT + 1.0V to 5.5V
V_R-LOAD Load Regulation
I_OUT = 100μA to 300 mA
V_DROP Dropout Voltage ⁽²⁾
I_OUT = 300mA
I_GND Ground Current
Both LDOs Enabled
I_OUT = 0μA
Both LDOs Enabled
I_OUT = 300mA
One LDO Enabled
I_OUT = 0μA
One LDO Enabled
I_OUT = 300mA
I_GND-SD Shutdown Ground Current
V_EN < 0.4V
PSRR Power Supply Rejection Ratio
I_SC
T_ON
e_N
R_OUT-SH
V_IN-UVLO
ESR
Output short circuit current limit
Turn-On Time
Output Noise Voltage ⁽³⁾
Shutdown Switch Resistance
Under voltage lockout threshold
C_OUT equivalent series resistance
Enable Input (EN1, EN2)
V_HI Logic High Level
V_LO Logic Low Level
I_EN Enable Input Current
Thermal Protection
T_SD
T_HYS
.
Thermal Shutdown
Thermal Hysteresis
f = 1kHz
f = 20kHz
V_OUT = 0V
BW = 10Hz to 100kHz
V_IN = 2.3 to 5.5V
V_IN = 2.3 to 5.5V
V_EN = 0.4V
V_EN = V_IN
Min Typ Max Unit
-1.0
+1.0
%
-2.0
+2.0
40
ppm/ºC
-0.2 ±0.1 +0.2
%/V
-0.4
+0.4
0.9 1.5
%
2
210 280
mV
350
100 140
170
160
µA
55 75
90
85
2
µA
4
60
dB
45
130
mA
150
µs
95
µVrms
250
Ω
2.15
V
5
500 mΩ
1.8
V
0.4
V
0.05 1
µA
0.1
1
160
ºC
10
ºC
Notes:
(1) Specification for 2.8V 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.
© Catalyst Semiconductor, Inc.
3
Characteristics subject to change without notice
Doc. No. MD-10001 Rev. A