
RT8004
6
DS8004-03 September 2007
www.richtek.com
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
2.65
--
5.5
V
Feedback Voltage
V
FB
(Note 5)
0.784
0.8
0.816
V
Feedback Leakage Current
I
FB
--
--
0.4
μ
A
Active, V
FB
= 0.78V,
Not switching
Shutdown, V
EN
< 0.1V (Note 5)
180
400
520
μ
A
Input DC Bias Current
--
--
1
μ
A
Reference Voltage Line Regulation
V
IN
= 2.7V to 5.5V (Note 5)
--
0.04
0.2
%/V
Output Voltage Load Regulation
Measured in Servo Loop,
V
COMP
= 1.2V to 1.6V
(Note 5)
--
0.05
+/-0.2
%
Power Good
Power Good Range
--
+/-12.5 +/-15
%
Power Good Pull-Down Resistance
--
--
120
Ω
Absolute Maximum Ratings
(Note 1)
z
Supply Input Voltage----------------------------------------------------------------------------------------------
0.3V to 6V
z
LX Pin Switch Voltage--------------------------------------------------------------------------------------------
0.3V to (PV
DD
+ 0.3V)
z
Other I/O Pin Voltages -------------------------------------------------------------------------------------------
0.3V to (V
DD
+ 0.3V)
z
Power Dissipation, P
D
@ T
A
= 25
°
C
SOP-16 --------------------------------------------------------------------------------------------------------------1.25W
TSSOP-16-----------------------------------------------------------------------------------------------------------2.66W
VQFN-16L 4x4 -----------------------------------------------------------------------------------------------------2.315W
z
Package Thermal Resistance (Note 4)
SOP-16,
θ
JA
--------------------------------------------------------------------------------------------------------100
°
C/W
TSSOP-16,
θ
JA
-----------------------------------------------------------------------------------------------------47
°
C/W
VQFN-16L 4x4,
θ
JA
------------------------------------------------------------------------------------------------54
°
C/W
VQFN-16L 4x4,
θ
JC
-----------------------------------------------------------------------------------------------7
°
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 2)
HBM (Human Body Mode) --------------------------------------------------------------------------------------2kV
MM (Machine Mode)----------------------------------------------------------------------------------------------200V
Recommended Operating Conditions
(Note 3)
z
Supply Input Voltage----------------------------------------------------------------------------------------------2.65V to 5.5V
z
Ambient Temperature Range------------------------------------------------------------------------------------
40
°
C to 85
°
C
z
Junction Temperature Range------------------------------------------------------------------------------------
40
°
C to 125
°
C
To be continued