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