SP3406
600mA Buck Converter
ABSOULTE MAXIMUM RATINGS
(TA=25℃, unless otherwise specified.)
The following ratings designate persistent limits beyond which damage to the device may occur
.
Symbol
V
IN
I
OUT
T
J
T
STG
T
LEAD
T
ope
R
ӨJC
Parameter
DC Supply Voltage
SW Current, Source or Sink
Operating Junction Temperature Range
Storage Temperature Range
Lead Soldering Temperature for 5 sec.
Operation Temperature Range
Thermal Resistance Junction – Case (*)
Value
-0.3 ~ 6.5
1.3
125
-65 to 150
260
-40 ~ 85
250
Unit
V
A
℃
℃
℃
℃
℃/W
ELECTRICAL CHARACTERISTICS
(Unless otherwise stated, these specifications apply T
A
=25° V
IN
=3.6V)
C;
Symbol
SUPPLY
V
IN
Parameter
Supply Voltage
Input DC Bias Current
Active mode
Input DC Bias Current
Sleep Mode
Input DC Bias Current
Shutdown Mode
RUN Threshold
RUN Leakage Current
Conditions
Min.
2.5
V
FB
= 0.5V or V
OUT
=
90%, I
LOAD
= 0A
V
FB
= 0.62V or V
OUT
=
103%, I
LOAD
= 0A
V
RUN
<0V, V
IN
= 4.2V
0.3
300
20
0.1
1
0.01
0.6
0.04
Typ.
Max.
6.5
400
35
1
1.5
1
0.612
0.4
30
0.5
V
IN
= 3V, V
FB
= 0.5V, Duty
Cycle < 35%
I
SW
= 100mA
I
SW
= 100mA
V
RUN
= 0V, V
IN
= 5V, V
SW
= 0V or 5V
V
FB
= 0V or V
OUT
= 0V
V
FB
=0.6V or V
OUT
=100%
0.75
1
400
350
0.01
1.2
1.5
1.25
500
450
1
1.8
Unit
V
uA
uA
uA
V
uA
V
%/V
nA
%
A
mΩ
mΩ
uA
MHz
I
IN
V
RUN
I
RUN
FEEDBACK
V
FB
Regulated Feedback Voltage
Reference Voltage Line
ΔV
FB
Regulation
I
FB
Feedback Current
Output Voltage Load
V
LOADREG
Regulation
I
PEAK
Peak Induct Current
0.588
V
IN
= 2.5V to 5.5V
SWITCHING REGULATOR
R
PMOS
*
R
DS(
on) for P MOSFET
R
NMOS
*
R
DS(
on) for N MOSFET
I
LSW
f
OSC
SW Leakage Current
Oscillator Frequency
* Guaranteed by Design
2012/11/15
V. 1
Page 3
SYNC-POWER [ SYNC POWER CROP. ]
