RT8005
Absolute Maximum Ratings
l
(Note 1)
Supply Voltage, PVDD and VDD
------------------------------------------------------------------------------−
0.3V to 6V
l
EN, FB Voltage ---------------------------------------------------------------------------------------------------
−
0.3V to V
DD
l
PGND to GND ----------------------------------------------------------------------------------------------------
−
0.3V to 0.3V
l
LX Voltage ---------------------------------------------------------------------------------------------------------
−
0.3V to (V
DD
+ 0.3V)
l
Power Dissipation, P
D
@ T
A
= 25°C
VDFN-10L 3x3 ----------------------------------------------------------------------------------------------------1.923W
l
Package Thermal Resistance (Note 4)
VDFN-10L 3x3,
θ
JA
-----------------------------------------------------------------------------------------------52°C/W
l
Junction Temperature -------------------------------------------------------------------------------------------150°C
l
Lead Temperature (Soldering, 10 sec.) ----------------------------------------------------------------------260°C
l
l
Storage Temperature Range -----------------------------------------------------------------------------------
−
65°C to 150°C
ESD Susceptibility (Note 2)
HBM (Human Body Mode) -------------------------------------------------------------------------------------2kV
MM (Machine Mode) --------------------------------------------------------------------------------------------200V
(Note 3)
Recommended Operating Conditions
l
l
l
l
Supply Voltage, PVDD and VDD ------------------------------------------------------------------------------2.4V to 5.5V
Enable Input Voltage, V
EN
-------------------------------------------------------------------------------------0V to V
DD
Ambient Temperature Range ----------------------------------------------------------------------------------
−
40°C to 85°C
Junction Temperature Range ----------------------------------------------------------------------------------
−
40°C to 125°C
Electrical Characteristics
(V
DD
= 3.3V, T
A
= 25°C, unless otherwise specified)
Parameter
Supply Current
Quiescent Current
Shutdown Current
Reference
Reference Voltage
Oscillator
Switching Frequency Range
Maximum Duty Cycle
Output Voltage
Line Regulation
Load Regulation
Power Switches
R
DS(ON)
of P-Channel MOSFET
R
DS(ON)
of N-Channel MOSFET
Current Limit
Symbol
Test Conditions
Min
Typ
Max
Units
I
Q
I
SHDN
V
EN
= 3.3V, V
FB
= V
REF
+ 0.15V,
I
OUT
= 0mA
V
EN
= 0V
--
--
200
0.01
400
1
µA
µA
V
REF
0.4925
0.5
0.5075
V
f
OSC
DC
V
PVDD
= V
OUT
1.7
100
2.0
--
2.3
--
MHz
%
V
DD
= 2.4V to 5.5V, I
LOAD
= 100mA
10mA < I
LOAD
< 600mA
--
--
--
--
+1.5
+1.5
%
%
R
P_FET
R
N_FET
I
LIMIT
V
PVDD
= 3.3V, I
LX
= 300mA
V
PVDD
= 3.3V, I
LX
=
−300mA
V
PVDD
= 3.3V, V
FB
= V
REF
- 0.15V
--
--
--
230
180
1.8
--
--
--
mΩ
mΩ
A
To be continued
www.richtek.com
4
DS8005-08 August 2007
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
