RT8058A Datasheet, PDF (3/14 Pages) Richtek Technology Corporation – 1.2MHz, 2A, High Efficiency PWM Step-Down DC/DC Converter

RT8058A
Absolute Maximum Ratings (Note 1)
z Supply Input Voltage VDD, PVDD ------------------------------------------------------------------------------------- −0.3V to 6V
z LX Pin Switch Voltage ---------------------------------------------------------------------------------------------------- −0.3V to 6V
z Other I/O Pin Voltage ----------------------------------------------------------------------------------------------------- −0.3V to 6V
z Power Dissipation, P_D @ T_A = 25°C
WDFN-10L 3x3 ------------------------------------------------------------------------------------------------------------- 1.429W
z Package Thermal Resistance (Note 2)
WDFN-10L 3x3, θ_JA ------------------------------------------------------------------------------------------------------- 70°C/W
WDFN-10L 3x3, θ_JC ------------------------------------------------------------------------------------------------------- 7.8°C/W
z Lead Temperature (Soldering, 10 sec.) ------------------------------------------------------------------------------- 260°C
z Storage Temperature Range -------------------------------------------------------------------------------------------- −65°C to 150°C
z Junction Temperature ----------------------------------------------------------------------------------------------------- 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 ------------------------------------------------------------------------------------------------------ 2.6V to 5.5V
z Junction Temperature Range -------------------------------------------------------------------------------------------- −40°C to 125°C
z Ambient Temperature Range -------------------------------------------------------------------------------------------- −40°C to 85°C
Electrical Characteristics
(VDD = VPVDD = 3.6V, TA = 25°C, unless otherwise specified)
Parameter
Symbol
Test Conditions
Input Voltage Range
V_IN
Feedback Reference Voltage V_REF
DC Bias Current
(PVDD, VDD total)
Active, No Load
Active, Not Switching, V_FB = 0.5V
Shutdown, EN = 0
Under voltage Lockout
Threshold
Oscillator Frequency
EN High-Level Input Voltage
EN Low-Level Input Voltage
UVLO
f_OSC
V_{EN_H}
V_{EN_L}
V_DD Rising
V_DD Hysteresis
Switching Frequency
Switch On Resistance, High R_{DS(ON)_P} I_OUT = 200mA
Switch On Resistance, Low
R_{DS(ON)_N} I_OUT = 200mA
Peak Current Limit
I_LIM
Output Voltage Line Regulation
Output Voltage Load
V_IN = 2.6V to 5.5V, I_OUT = 0
I_OUT = 0AÆ2A
Min
2.6
0.582
--
--
--
2.3
--
1
1.4
--
--
--
2.2
--
--
Typ
--
0.6
3.4
340
--
2.43
150
1.2
--
--
142
96
3
0.05
1
Max
5.5
0.618
--
--
2
2.55
--
1.4
--
0.4
210
160
--
--
--
Unit
V
V
mA
μA
μA
V
mV
MHz
V
V
mΩ
mΩ
A
%/V
%/A
DS8058A-02 April 2011
www.richtek.com
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