RT8089A 查看數據表（PDF） - Richtek Technology
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RT8089A Datasheet PDF : 15 Pages
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RT8089A
Absolute Maximum Ratings (Note 1)
z Supply Input Voltage, VIN, VCC ----------------------------------------------------------------------------------- −0.3V to 6.5V
z SW Pin
DC ------------------------------------------------------------------------------------------------------------------------- (VIN + 0.3V) to 6.8V
< 20ns ------------------------------------------------------------------------------------------------------------------- −2.5V to 9V
z Other Pins --------------------------------------------------------------------------------------------------------------- −0.3V to 6.5V
z Power Dissipation, PD @ TA = 25°C
WDFN-10L 3x3 --------------------------------------------------------------------------------------------------------- 1.429W
z Package Thermal Resistance (Note 2)
WDFN-10L 3x3, θJA --------------------------------------------------------------------------------------------------- 70°C/W
WDFN-10L 3x3, θJC --------------------------------------------------------------------------------------------------- 8.2°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 Model) ------------------------------------------------------------------------------------------ 2kV
Recommended Operating Conditions (Note 4)
z Supply Input Voltage, VIN, VCC ----------------------------------------------------------------------------------- 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
Feedback Leakage Current
DC Bias Current
VREF
IFB
0.594 0.6 0.606 V
--
0.1 0.4 μA
Active , VFB = 0.7V, Not Switching --
Shutdown
--
110 170
μA
--
1
Output Voltage Line Regulation
Output Voltage Load Regulation
Switch Leakage Current
VIN = 2.7V to 5.5V, IOUT = 0A
IOUT = 0A to 3A
--
0.3
--
%/V
−1
--
1
%
--
--
1
μA
Switching Frequency
0.8
1
1.2 MHz
Switch On
Resistance
High Side
Low Side
RDS(ON)_P VIN = 5V
RDS(ON)_N VIN = 5V
--
69
--
mΩ
--
49
--
P-MOSFET Current Limit
Under Voltage Lockout
Threshold
Logic-High
EN Input Voltage
Logic-Low
EN Pull Low Resistance
Over Temperature Protection
ILIM
VUVLO
VIH
VIL
TSD
VCC Rising
VCC Falling
4.8
--
--
A
2.2 2.4 2.6
V
2
2.2 2.4
1.6
--
--
V
--
--
0.4
-- 500 --
kΩ
-- 150 --
°C
Copyright ©2013 Richtek Technology Corporation. All rights reserved.
www.richtek.com
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is a registered trademark of Richtek Technology Corporation.
DS8089A-01 March 2013
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