RT8065 查看數據表（PDF） - Richtek Technology
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RT8065 Datasheet PDF : 13 Pages
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RT8065
Absolute Maximum Ratings (Note 1)
z Supply Input Voltage, VIN ----------------------------------------------------------------------------------------- −0.3V to 6V
z LX Pin Switch Voltage ---------------------------------------------------------------------------------------------- −0.3V to (VIN + 0.3V)
<10ns ------------------------------------------------------------------------------------------------------------------ −5V to 8.5V
z Other I/O Pin Voltages --------------------------------------------------------------------------------------------- −0.3V to (VIN + 0.3V)
z LX Pin Switch Current ---------------------------------------------------------------------------------------------- 5A
z Power Dissipation, PD @ TA = 25°C
SOP-8 (Exposed Pad) -------------------------------------------------------------------------------------------- 1.333W
WDFN-8L 3x3 -------------------------------------------------------------------------------------------------------- 1.429W
zPackage Thermal Resistance (Note 2)
SOP-8 (Exposed Pad), θJA ---------------------------------------------------------------------------------------- 75°C/W
SOP-8 (Exposed Pad), θJC --------------------------------------------------------------------------------------- 15°C/W
WDFN-8L 3x3, θJA --------------------------------------------------------------------------------------------------- 70°C/W
WDFN-8L 3x3, θJC --------------------------------------------------------------------------------------------------- 8.2°C/W
z Junction Temperature ----------------------------------------------------------------------------------------------- 150°C
z Lead Temperature (Soldering, 10 sec.) ------------------------------------------------------------------------- 260°C
z Storage Temperature Range -------------------------------------------------------------------------------------- −65°C to 150°C
z ESD Susceptibility (Note 3)
HBM (Human Body Model) ---------------------------------------------------------------------------------------- 2kV
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 = 3.3V, TA = 25°C, unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Feedback Reference Voltage VREF
0.784 0.8 0.816 V
DC Bias Current
Active , VFB = 0.78V, Not Switching --
Shutdown
--
460
--
μA
--
10
Output Voltage Line Regulation
VIN = 2.7V to 5.5V
--
0.1
-- %/V
Output Voltage Load Regulation
Error Amplifier
Trans-conductance
gm
0A < ILOAD < 3A
--
0.25
--
%
--
400
-- μA/V
Current Sense Trans-resistance RT
Switching Frequency
ROSC = 330kΩ
Switching
--
0.3
--
Ω
0.8
1
1.2
MHz
0.2
--
2
Logic-High
EN Input Voltage
VIH
Logic-Low VIL
1.6
--
--
V
--
--
0.4
Copyright ©2012 Richtek Technology Corporation. All rights reserved.
www.richtek.com
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is a registered trademark of Richtek Technology Corporation.
DS8065-07 November 2012
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