DS8048-01 Datasheet, PDF (4/11 Pages) Richtek Technology Corporation – 3MHz 1A Step-Down Converter

RT8048
Absolute Maximum Ratings (Note 1)
z Supply Input Voltage, V_IN ---------------------------------------------------------------------------------------------- 6.5V
z Power Dissipation, P_D @ T_A = 25°C
WDFN-6L 2x2 ------------------------------------------------------------------------------------------------------------- 0.833W
z Package Thermal Resistance (Note 2)
WDFN-6L 2x2, θ_JA ------------------------------------------------------------------------------------------------------- 120°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 ------------------------------------------------------------------------------------------------------------------------ 2kV
MM -------------------------------------------------------------------------------------------------------------------------- 200V
Recommended Operating Conditions (Note 4)
z Supply Input Voltage, V_IN ---------------------------------------------------------------------------------------------- 2.5V to 5.5V
z Junction Temperature Range ------------------------------------------------------------------------------------------ −40°C to 125°C
z Ambient Temperature Range ------------------------------------------------------------------------------------------ −40°C to 85°C
Electrical Characteristics
(VIN = 3.6V, TA = 25°C unless otherwise specified)
Parameter
Symbol
Test Conditions
Quiescent Current
Reference Voltage
I_Q
V_REF
Under Voltage Lockout Threshold V_UVLO
Shutdown Current
I_SHDN
V_IN Rising
V_IN Falling
Switching Frequency
f_OSC
EN Input Threshold
Voltage
Logic-High V_IH
Logic-Low V_IL
Thermal Shutdown Temperature T_SD
Switch On Resistance, High
R_PFET I_LX = 0.2A
Switch On Resistance, Low
R_NFET I_LX = 0.2A
Peak Current Limit
I_LIM
Output Voltage Line Regulation
V_IN = 2.5V to 5.5V
Output Voltage Load Regulation
0mA < I_LOAD < 0.6A
Min Typ Max Unit
--
81
--
μA
0.588 0.6 0.612 V
--
2.3
--
V
--
2.1
--
--
0.1
1
μA
--
3
-- MHz
1.5
--
V_IN
V
--
--
0.4
--
140
--
°C
--
250
--
mΩ
--
260
--
mΩ
--
1.5
--
A
--
--
1 %/V
--
--
1
%
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4
DS8048-01 June 2011