RT8032
Absolute Maximum Ratings
(Note 1)
Supply Input Voltage, V
IN
----------------------------------------------------------------------------------------
−0.3V
to 6V
Switching Voltage, SW ------------------------------------------------------------------------------------------
−0.3V
to (V
IN
+ 0.3V)
Other I/O Pin Voltages -------------------------------------------------------------------------------------------
−0.3V
to 6V
Power Dissipation, P
D
@ T
A
= 25°C
WDFN-12L 4x3 ----------------------------------------------------------------------------------------------------- 1.667W
Package Thermal Resistance (Note 2)
WDFN-12L 4x3,
θ
JA
----------------------------------------------------------------------------------------------- 60°C/W
WDFN-12L 4x3,
θ
JC
----------------------------------------------------------------------------------------------- 7.5W
Junction Temperature --------------------------------------------------------------------------------------------- 150°C
Lead Temperature (Soldering, 10 sec.) ----------------------------------------------------------------------- 260°C
Storage Temperature Range ------------------------------------------------------------------------------------
−65°C
to 150°C
ESD Susceptibility (Note 3)
HBM (Human Body Mode) -------------------------------------------------------------------------------------- 2kV
MM (Machine Mode) ---------------------------------------------------------------------------------------------- 200V
Recommended Operating Conditions
(Note 4)
Junction Temperature Range ------------------------------------------------------------------------------------
−40°C
to 125°C
Ambient Temperature Range ------------------------------------------------------------------------------------
−40°C
to 85°C
Electrical Characteristics
(V
IN
= 5V, T
A
= 25°C, unless otherwise specified)
Parameter
Feedback Reference Voltage
DC Bias Current (PVDD, VDD
total)
Under Voltage Lockout
Threshold
Switching Frequency
Symbol
V
REF
Test Conditions
Active, Not Switching, V
FB
= 0.75V
EN =0
V
IN
Rising
V
IN
Falling
Min
0.784
--
--
2.3
2.13
1
Typ
0.8
550
--
2.43
2.29
1.2
--
--
230
230
0.45
1.9
0.1
--
Max
0.816
--
1
2.55
2.43
1.4
--
0.4
--
--
0.5
--
1
1
Unit
V
μA
μA
V
V
MHz
V
V
mΩ
mΩ
A
A
%/V
%
Logic-High Voltage V
IH
EN
Threshold Logic-Low Voltage V
IL
Switch On Resistance, High
Switch On Resistance, Low
Input Average Current Limit
Peak Current Limit
Output Voltage Line Regulation
Output Voltage Load
Regulation
R
PMOS
R
NMOS
I
AVG
I
LIM
V
EN
Rising
V
EN
Falling
I
SW
= 0.2A
I
SW
= 0.2A
R
LIM
= 25.5kΩ
V
IN
= 3V to 5.5V
0mA < I
LOAD
< 1.2A
1.4
--
--
--
0.4
1.6
--
--
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DS8032-02 March 2011
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
