RT8078AZSP 查看數據表（PDF） - Richtek Technology
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RT8078AZSP Datasheet PDF : 12 Pages
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RT8078A
Absolute Maximum Ratings (Note 1)
z Supply Input Voltage, PVIN, SVIN ----------------------------------------------------------------------------- −0.3V to 6.5V
z LX Pin Voltages ---------------------------------------------------------------------------------------------------- −0.3V to (VIN + 0.3V)
z Other I/O Pin Voltage --------------------------------------------------------------------------------------------- −0.3V to 6.5V
z Power Dissipation, PD @ TA = 25°C
WDFN-10L 3x3 ----------------------------------------------------------------------------------------------------- 1.429W
SOP-8 (Exposed Pad) -------------------------------------------------------------------------------------------- 1.333W
z Package Thermal Resistance (Note 2)
WDFN-10L 3x3, θJA ------------------------------------------------------------------------------------------------ 70°C/W
WDFN-10L 3x3, θJC ----------------------------------------------------------------------------------------------- 8.2°C/W
SOP-8 (Exposed Pad), θJA -------------------------------------------------------------------------------------- 75°C/W
SOP-8 (Exposed Pad), θJC -------------------------------------------------------------------------------------- 15°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 (Human Body Mode) --------------------------------------------------------------------------------------- 2kV
MM (Machine Mode) ---------------------------------------------------------------------------------------------- 200V
Recommended Operating Conditions (Note 4)
z Supply Input Voltage, PVIN, SVIN ----------------------------------------------------------------------------- 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 = 3.3V, TA = 25°C, unless otherwise specified)
Parameter
Symbol
Test Conditions
Feedback Reference Voltage
Feedback Leakage Current
VREF
IFB
DC Bias Current
Output Voltage Line Regulation
Output Voltage Load Regulation
Switch Leakage Current
Switching Frequency
Active , VFB = 0.58V, Not
Switching
Shutdown
VIN = 2.7V to 5.5V
IOUT = 0A
IOUT = 0A to 4A
Switch On Resistance, High
RDS(ON)_P VIN = 5V
Switch On Resistance, Low
RDS(ON)_N VIN = 5V
P-MOSFET Current Limit
IL IM
Under Voltage Lockout
Threshold
VUVLO
EN Input
Logic-High VIH
Threshold Voltage Logic-Low VIL
VIN Rising
VIN Falling
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4
Min Typ Max Unit
0.594 0.6 0.606 V
--
0.1
0.4
μA
--
110
--
μA
--
--
1
--
0.3
-- %/V
−2
--
2
%
--
--
1
μA
0.8
1
1.2 MHz
--
69
--
mΩ
--
49
--
mΩ
4.4
--
--
A
--
2.4
--
V
--
2.2
--
1.6
--
--
V
--
--
0.4
To be continued
DS8078A-01 June 2011
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