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CAT6219-285MV2 数据手册 - ON Semiconductor（安森美）
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CAT6219-285MV2数据手册
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CAT6219
http://onsemi.com
3
Table 4. ELECTRICAL OPERATING CHARACTERISTICS (Note 3)
(V
IN
= V
OUT
+ 1.0 V, V
EN
= High, I
OUT
= 100 mA, C
IN
= 1 mF, C
OUT
= 2.2 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 +1.0
%
−2.0 +2.0
TC
OUT
Output Voltage Temp. Coefficient 40 ppm/°C
V
R−LINE
Line Regulation V
IN
= V
OUT
+ 1.0 V to 5.5 V
−0.2 ±0.1 +0.2
%/V
−0.4 +0.4
V
R−LOAD
Load Regulation
I
OUT
= 100 mA to 500 mA 1 1.5
%
2
V
DROP
Dropout Voltage (Note 4) I
OUT
= 500 mA
300 400
mV
500
I
GND
Ground Current
I
OUT
= 0 mA 55 75 mA
90
I
OUT
= 500 mA 85
I
GND−SD
Shutdown Ground Current V
EN
< 0.4 V
1 mA
2
PSRR Power Supply Rejection Ratio
f = 1 kHz, C
BYP
= 10 nF 64
dB
f = 20 kHz, C
BYP
= 10 nF 54
I
SC
Output short circuit current limit V
OUT
= 0 V 200 mA
T
ON
Turn−On Time C
BYP
= 10 nF 150
ms
e
N
Output Noise Voltage (Note 5) BW = 10 Hz to 100 kHz 45
mVrms
R
OUT−SH
Shutdown Switch Resistance 250
W
R
EN
Enable pull−down resistor 2.5
MW
V
UVLO
Under voltage lockout threshold 2.15 V
ESR C
OUT
equivalent series resistance 5 500
mW
V
ADJ
Adjustable input voltage
I
OUT
= 100 mA
1.2 1.24 1.27 V
ENABLE INPUT
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
junction temperature
1.6
V
LO
Logic Low Level V
IN
= 2.3 to 5.5 V 0.4 V
I
EN
Enable Input Current
V
EN
= 0.4 V 0.15 1 mA
V
EN
= V
IN
1.5 4
THERMAL PROTECTION
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. 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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