EUP3409
Absolute Maximum Ratings
V
INX
to GND ------------------------------------------------------------------------- -0.3V to 6V
V
SWX
to GND --------------------------------------------------------------- -0.3V to V
INX
+0.3V
V
FBX
,V
ENX
to GND --------------------------------------------------------------- -0.3V to V
INX
Junction Temperature --------------------------------------------------------------------- 125°C
Storage Temperature ----------------------------------------------------------- -65°C to 150°C
Lead Temp (Soldering, 10sec) -------------------------------------------------------
260°C
Recommended Operating Conditions
Supply Voltage, V
INX
-----------------------------------------------------------
2.5V to 5.5V
Output Voltage, V
OUTX
----------------------------------------------------------
0.6V to 5V
Operating Temperature --------------------------------------------------------- -40°C to 85°C
Electrical Characteristics
V
INX
=V
ENX
=3.6V, T
A
=25°C, Unless otherwise specified.
Symbol
V
IN
I
FB
I
Q
I
SHDN
I
PK
V
FB
∆V
OUT
∆V
FB
∆V
LOADREG
f
OSC
R
PFET
R
NFET
I
LSW
V
EN
Parameter
Input Voltage Range
Feedback Current
Each converter Supply Current
Peak Inductor Current
Regulator Feedback Voltage
(Note 1)
Output Voltage Line Regulation
Reference Voltage Line
Regulation
Output Voltage Load Regulation
Each converter Oscillator
Frequency
R
DS(ON)
of P-Channel FET
R
DS(ON)
of N-Channel FET
SW Leakage Current
EN Threshold
Conditions
EUP3409
Min
Typ
Max.
2.5
±30
5.5
270
1.05
0.588
0.585
1.25
0.6
0.6
0.25
0.25
0.5
1.2
1.5
0.7
0.28
0.3
0.3
1.0
0.4
0.4
±1
1.5
1.8
0.612
0.615
0.4
0.4
370
1
Unit
V
nA
µA
µA
A
V
%/V
%/V
%
MHz
Ω
Ω
µA
V
V
FBX
=0.5V, SWX Open
V
INX
=3V,V
FBX
=0.5V
T
A
=25℃
-40℃≤ T
A
≤
85℃
V
INX
=2.5V to 5.5V, I
LOAD
=0
V
INX
=2.5V to 5.5V
I
LOAD
=0 to 800mA
V
FBX
=0.6V
V
FBX
=0
I
SWX
=200mA
I
SWX
= -200mA
V
ENX
=0V, V
SWX
=0 or 5V, V
INX
=5V
-40℃≤ T
A
≤
85℃
Each converter Shutdown Current V
ENX
=0V, V
INX
=4.2V
Note 1: The EUP3409 is tested in a proprietary test mode that connects FBX to the output of the error amplifier.
DS3409
Ver1.0
Jan. 2008
4
EUTECH [ EUTECH MICROELECTRONICS INC ]
