RT8023 Ver la hoja de datos (PDF) - Richtek Technology
Número de pieza
componentes Descripción
Fabricante
RT8023 Datasheet PDF : 19 Pages
| |||
RT8023
Parameter
Current Limit
Dropout Voltage
Load Regulation
Line Regulation
EN3 Pin Current
Current Limit
Dropout Voltage
Load Regulation
Line Regulation
Power Supply Rejection Ratio,
f = 100kHz
FB3 Threshold for PGOOD
Transition
PGOOD3 Pull-Down Resistance
EN3 Input High
Symbol
Test Conditions
ILIM
RLOAD = 0Ω
VDROP IOUT3 = 250mA, VIN3 > 2.7V
ΔVLOAD
ΔVLINE
IEN3
1mA < IOUT3 < 250mA,
VIN3 > 2.7V
VIN3 = (VOUT3 + 0.5) to 5.5V
IOUT3 = 1mA
Measured EN leakage current.
EN3 = 5.5V
ILIM
RLOAD = 0Ω
VDROP
ΔVLOAD
ΔVLINE
IOUT3 = 250mA, VIN3 > 2.7V
1mA < IOUT3 < 250mA,
VIN3 > 2.7V
VIN3 = (VOUT3 + 0.5) to 5.5V
IOUT3 = 1mA
PSRR IOUT3 = 150mA
Min Typ Max Unit
0.35 0.48 0.6
A
--
250 400 mV
--
1
--
%
-- 0.01 0.2 %/V
--
0.1
1
μA
0.35 0.48 0.6
A
--
250 400 mV
--
1
--
%
-- 0.01 0.2 %/V
--
40
--
dB
-- 0.72 0.76 V
--
--
120 Ω
1.4
--
--
V
EN3 Input Low
--
--
0.4
V
Note 1. Stresses listed as the above “Absolute Maximum Ratings” may cause permanent damage to the device. These are for
stress ratings. Functional operation of the device at these or any other conditions beyond those indicated in the
operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended
periods may remain possibility to affect device reliability.
Note 2. θJA is measured in the natural convection at TA = 25°C on a high effective four layers thermal conductivity test board of
JEDEC 51-7 thermal measurement standard. The case point of θJC is on the expose pad of the package.
Note 3. Devices are ESD sensitive. Handling precaution is recommended.
Note 4. The device is not guaranteed to function outside its operating conditions.
Note 5. The power source for thermal shutdown circuit must be provided by VIN1. There must be a power input into LDO1 and
then the LDO2 can provide the thermal shutdown function.
DS8023-03 March 2011
www.richtek.com
7
Share Link: 