RT8057A データシートの表示（PDF） - Richtek Technology
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RT8057A Datasheet PDF : 12 Pages
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RT8057A
Absolute Maximum Ratings (Note 1)
z Supply Input Voltage, VIN ------------------------------------------------------------------------------------------------ 6.5V
z Power Dissipation, PD @ TA = 25°C
WDFN-6SL 2x2 ------------------------------------------------------------------------------------------------------------ 0.833W
TSOT-23-5 ------------------------------------------------------------------------------------------------------------------- 0.625W
z Package Thermal Resistance (Note 2)
WDFN-6SL 2x2, θJA ------------------------------------------------------------------------------------------------------- 120°C/W
WDFN-6SL 2x2, θJC ------------------------------------------------------------------------------------------------------ 8.2°C/W
TSOT-23-5, θJA ------------------------------------------------------------------------------------------------------------- 160°C/W
z Lead Temperature (Soldering, 10 sec.) ------------------------------------------------------------------------------- 260°C
z Junction Temperature ----------------------------------------------------------------------------------------------------- 150°C
z Storage Temperature Range -------------------------------------------------------------------------------------------- −65°C to 150°C
z ESD Susceptibility (Note 3)
HBM -------------------------------------------------------------------------------------------------------------------------- 2kV
MM ---------------------------------------------------------------------------------------------------------------------------- 200V
Recommended Operating Conditions (Note 4)
z Supply Input Voltage, VIN ------------------------------------------------------------------------------------------------ 2.7V to 5.5V
z Junction Temperature Range -------------------------------------------------------------------------------------------- −40°C to 125°C
z Ambient Temperature Range -------------------------------------------------------------------------------------------- −40°C to 85°C
Electrical Characteristics
(VIN = 3.6V, TA = 25°C unless otherwise specified)
Parameter
Symbol
Test Conditions
Output Current
Quiescent Current
IOUT
IQ
VIN = 2.7V to 5.5V
IOUT = 0mA
Reference Voltage
VREF
Note 5
Under Voltage Lockout Threshold VUVLO
Shutdown Current
Switching Frequency
ISHDN
VIN Rising
Hysteresis
EN Threshold Logic-High
Voltage
Logic-Low
Thermal Shutdown Temperature
Switch On
Resistance
High Side
Low Side
Peak Current Limit
Output Voltage Line Regulation
Output Voltage Load Regulation
Start-Up Time
VIH
VIL
TS D
RDS(ON)_H ISW = 0.2A
RDS(ON)_L ISW = 0.2A
ILIM
VIN = 2.7V to 5.5V
0mA < IOUT < 0.6A
tss
Guaranteed by Design
Min Typ Max Unit
--
--
1
A
--
81
--
μA
−2
--
2
%
−2.5 -- 2.5
2
2.2 2.4 V
--
0.2 --
V
--
0.1 1 μA
-- 2.25 -- MHz
1
--
VIN
V
--
-- 0.4 V
--
150 --
°C
--
250 -- mΩ
--
200 -- mΩ
1.1 1.5 2
A
--
--
1 %/V
--
--
1%
200 300 400 μs
DS8057A-00 March 2011
www.richtek.com
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