RT8056 Просмотр технического описания (PDF) - Richtek Technology
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RT8056 Datasheet PDF : 11 Pages
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RT8056
Absolute Maximum Ratings (Note 1)
z Supply Input Voltage, VIN ----------------------------------------------------------------------------------------------------------------------------------- −0.3V to 6.5V
z LX1, LX2 Pin Voltages ----------------------------------------------------------------------------------------------- −0.3V to (VIN+0.3V)
z Other I/O Pin Voltages ---------------------------------------------------------------------------------------------- −0.3V to 6.5V
z Power Dissipation, PD @ TA = 25°C
WDFN-10L 3x3 -------------------------------------------------------------------------------------------------------- 1.429W
z Package Thermal Resistance (Note 2)
WDFN-10L 3x3, θJA -------------------------------------------------------------------------------------------------- 70°C/W
WDFN-10L 3x3, θJC -------------------------------------------------------------------------------------------------- 8.2°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 ------------------------------------------------------------------------------------------- 2.8V 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
Quiescent Current
IQ
Feedback Reference Voltage
VREF
Under Voltage Lockout Threshold VUVLOH
Shutdown Current
Switching Frequency
ENx Threshold
Voltage
Logic High
Logic Low
Peak Current Limit
Output Voltage Line Regulation
Output Voltage Load Regulation
Switch On-Resistance, High
Switch On Resistance, Low
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
ISHDN
VIH
VIL
ILIM
RDS(ON)_H
RDS(ON)_L
TSD
Test Conditions
VIN Rising
H ys teresis
VIN = 2.8V to 5.5V
VIN = 2.8V to 5.5V
0mA < ILOAD < 1A
ISW = 0.2A
ISW = 0.2A
(Note5)
Min Typ Max Unit
-- 300 --
μA
0.588 0.6 0.612 V
-- 2.1 --
V
-- 0.18 --
V
--
0.1 1 μA
1.2 1.5 1.8 MHz
1.5
--
VIN
V
--
-- 0.4 V
1.1 1.5 --
A
-- 0.04 0.4 %V
--
1
--
%
-- 280 -- mΩ
-- 290 -- mΩ
-- 138 -- °C
--
18
--
°C
DS8056-02 April 2011
www.richtek.com
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