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CAT6221_12 Datasheet, PDF (3/10 Pages) ON Semiconductor – 300 mA CMOS Dual LDO Regulator | |||
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CAT6221
Table 3. ELECTRICAL OPERATING CHARACTERISTICS (Note 3)
(VIN = VOUT + 1.0 V, VEN = High, IOUT = 100 mA, CIN = COUT = 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
VOUTâACC Output Voltage Accuracy
Initial accuracy (Note 4)
â1.0
â2.0
+1.0
%
+2.0
TCOUT
VRâLINE
Output Voltage Temp. Coefficient
Line Regulation
VIN = VOUT + 1.0 V to 5.5 V
40
â0.2 ±0.1 +0.2
â0.4
+0.4
ppm/°C
%/V
VRâLOAD Load Regulation
IOUT = 100 mA to 300 mA
0.9
1.5
%
2
VDROP Dropout Voltage (Note 5)
IOUT = 300 mA
210 280
mV
350
IGND
Ground Current
Both LDOs Enabled
IOUT = 0 mA
100 140
mA
170
Both LDOs Enabled
IOUT = 300 mA
One LDO Enabled
IOUT = 0 mA
160
55
75
90
IGNDâSD Shutdown Ground Current
One LDO Enabled
IOUT = 300 mA
VEN < 0.4 V
85
2
mA
4
PSRR Power Supply Rejection Ratio
f = 1 kHz
60
dB
f = 20 kHz
45
ISC
Output short circuit current limit
TON
TurnâOn Time
eN
Output Noise Voltage (Note 6)
ROUTâSH Shutdown Switch Resistance
VINâUVLO Under voltage lockout threshold
ESR
COUT equivalent series resistance
ENABLE INPUT (EN1, EN2)
VOUT = 0 V
BW = 10 Hz to 100 kHz
130
mA
150
ms
95
mVrms
250
W
2.15
V
5
500
mW
VHI
Logic High Level
VLO
Logic Low Level
IEN
Enable Input Current
THERMAL PROTECTION
VIN = 2.3 to 5.5 V
VIN = 2.3 to 5.5 V
VEN = 0.4 V
VEN = VIN
1.8
V
0.4
V
0.05
1
mA
0.1
1
TSD
Thermal Shutdown
160
°C
THYS
Thermal Hysteresis
10
°C
3. Specification for 2.8 V output version unless specified otherwise.
4. For VOUT < 2.0 V, the initial accuracy is ±2% and across temp is ±3%.
5. Dropout voltage is defined as the inputâtoâoutput 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.
6. Specification for 1.8 V output version.
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