RT9045 Ver la hoja de datos (PDF) - Richtek Technology
Número de pieza
componentes Descripción
Fabricante
RT9045 Datasheet PDF : 12 Pages
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RT9045
Parameter
Short Circuit Current
Thermal Shutdown
Temperature
Thermal Shutdown
Hysteresis
Short Circuit Current
Thermal Shutdown
Temperature
Thermal Shutdown
Hysteresis
REFEN Shutdown
Shutdown Threshold
Symbol
Test Conditions
VIN = 1.8V / 1.5V / 1.35V / 1.2V,
VOUT < 0.2V
TSD
VCNTL = 5V
ΔTSD
TSD
VCNTL = 5V
VIN = 1.8V / 1.5V / 1.35V / 1.2V,
VOUT < 0.2V
VCNTL = 5V
ΔTSD VCNTL = 5V
VIH
Enable
VIL
Shutdown
Min Typ Max Unit
-- 1.5 -- A
125 170 -- °C
-- 35 -- °C
-- 1.5 -- A
125 170 -- °C
-- 35 -- °C
0.4 -- --
V
-- -- 0.15
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 thermal conductivity test board (4 Layers,
2S2P) of JEDEC 51-7 thermal measurement standard. The case point of θJC is on the exposed pad for 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. Standby current is the input current drawn by a regulator when the output voltage is disabled by a shutdown signal on
REFEN pin (VIL < 0.15V). It is measured with VIN = 1.8V, VCNTL = 5V.
Note 6. VOS offset is the voltage measurement defined as VOUT subtracted from VREFEN.
Note 7. Regulation is measured at constant junction temperature by using a 5ms current pulse. Devices are tested for load
regulation in the load range from 0A to 1.8A peak.
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DS9045-04 August 2011
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