RT8068A Просмотр технического описания (PDF) - Richtek Technology
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RT8068A Datasheet PDF : 13 Pages
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RT8068A
Absolute Maximum Ratings (Note 1)
z Supply Input Voltage, PVIN, SVIN --------------------------------------------------------------------------------- −0.3V to 6.5V
z LX Pin
DC ------------------------------------------------------------------------------------------------------------------------- (VIN + 0.3V) to 6.8V
< 20ns ------------------------------------------------------------------------------------------------------------------- −2.5V to 9V
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
Active , VFB = 0.7V, Not
Switching
Shutdown
VIN = 2.7V to 5.5V
IOUT = 0A
IOUT = 0A to 3A
Switch Leakage Current
Switching Frequency
Switch On Resistance, High
RDS(ON)_P VIN = 5V
Switch On Resistance, Low
P-MOSFET Current Limit
Under Voltage Lockout
Threshold
RDS(ON)_N
ILIM
VUVLO
VIN = 5V
VIN Rising
VIN Falling
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4
Min
0.594
--
--
--
--
−1
--
0.8
--
--
4
2.2
2
Typ Max Unit
0.6 0.606 V
0.1 0.4 μA
110 140
μA
--
1
0.3
-- %/V
--
1
%
--
1
μA
1
1.2 MHz
69
--
mΩ
49
--
mΩ
--
--
A
2.4 2.6
V
2.2 2.4
To be continued
DS8068A-03 May 2011
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