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RT8011 Datasheet(PDF) 6 Page - Richtek Technology Corporation

Part # RT8011
Description  2A, 4MHz, Synchronous Step-Down Regulator
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT8011 Datasheet(HTML) 6 Page - Richtek Technology Corporation

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RT8011/A
6
DS8011/A-00 August 2006
www.richtek.com
Absolute Maximum Ratings (Note 1)
Supply Input Voltage, VDD, PVDD ----------------------------------------------------------------------------
−0.3V to 6V
LX Pin Switch Voltage --------------------------------------------------------------------------------------------
−0.3V to (PVDD+ 0.3V)
Other I/O Pin Voltages -------------------------------------------------------------------------------------------
−0.3V to (VDD + 0.3V)
LX Pin Switch Current -------------------------------------------------------------------------------------------- 4A
Power Dissipation, PD @ TA = 25
°C
MSOP-10 ------------------------------------------------------------------------------------------------------------ 467mW
WDFN-10L 3x3 ----------------------------------------------------------------------------------------------------- 909mW
WDFN-8L 3x3 ------------------------------------------------------------------------------------------------------ 909mW
Package Thermal Resistance (Note 4)
MSOP-10,
θJA ------------------------------------------------------------------------------------------------------ 214°C/W
WDFN-10L 3x3,
θJA ----------------------------------------------------------------------------------------------- 110°C/W
WDFN-8L 3x3,
θJA ------------------------------------------------------------------------------------------------- 110°C/W
Junction Temperature --------------------------------------------------------------------------------------------- 150
°C
Lead Temperature (Soldering, 10 sec.) ----------------------------------------------------------------------- 260
°C
Storage Temperature Range ------------------------------------------------------------------------------------
65°C to 150°C
ESD Susceptibility (Note 2)
HBM (Human Body Mode) -------------------------------------------------------------------------------------- 2kV
MM (Machine Mode) ---------------------------------------------------------------------------------------------- 200V
Electrical Characteristics
(VDD = 3.3V, TA = 25
°C, unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Units
Input Voltage Range
VDD
2.6
--
5.5
V
Feedback Voltage
VFB
0.784
0.8
0.816
V
Active , VFB = 0.78V, Not Switching
--
460
--
μA
DC Bias Current
Shutdown
--
--
1
μA
Output Voltage Line Regulation
VIN = 2.7V to 5.5V
--
0.04
--
%/V
Output Voltage Load Regulation
0A < ILOAD < 2A
--
0.25
--
%
Error Amplifier
Transconductance
gm
--
800
--
μs
Current Sense Transresistance
RT
--
0.4
--
Ω
Power Good Range
--
±12.5
±15
%
Power Good Pull-Down
Resistance
--
--
120
Ω
To be continued
Recommended Operating Conditions
(Note 3)
Supply Input Voltage ---------------------------------------------------------------------------------------------- 2.6V to 5.5V
Junction Temperature Range ------------------------------------------------------------------------------------
−40°C to 125°C
Ambient Temperature Range ------------------------------------------------------------------------------------
−40°C to 85°C


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