RT8070ZQW 查看數據表（PDF） - Richtek Technology
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RT8070ZQW Datasheet PDF : 12 Pages
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RT8070
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
z Package 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
Feedback Reference
Voltage
VREF
DC Bias Current
Active, VFB = 0.78V, Not Switching
Shutdown
Output Voltage Line
Regulation
VIN = 2.7V to 5.5V
Output Voltage Load
Regulation
0A < ILOAD < 4A
Error Amplifier
Trans-conductance
gm
Current Sense
Trans-resistance
RT
Min Typ Max Unit
0.784 0.8 0.816 V
-- 460 --
μA
--
--
10
-- 0.1 -- %/V
-- 0.25 --
%
-- 400 -- μA/V
-- 0.3 --
Ω
Copyright ©2012 Richtek Technology Corporation. All rights reserved.
www.richtek.com
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is a registered trademark of Richtek Technology Corporation.
DS8070-07 November 2012
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