1.5 MHZ, 600MA SYNCHRONOUS STEP-DOWN CONVERTER
ELECTRICAL CHARACTERISTICS (NOTE 4)
(V
IN
=V
RUN
=3.6V, T
A
=25℃, Unless otherwise noted)
Parameter
Input Voltage Range
Input DC Supply Current
Active Mode
Shutdown Mode
Regulated Feedback Voltage
V
FB
Input Bias Current
Reference Voltage Line Regulation
Regulated Output Voltage
Output Voltage Line Regulation
Output Voltage Load Regulation
Maximum Output Current
Oscillator Frequency
R
DS(ON)
of P-CH MOSFET
R
DS(ON)
of N-CH MOSFET
Peak Inductor Current
Condition
V
FB
=0.5V
V
FB
=0V, V
IN
=4.2V
T
A
=+25℃
T
A
=0℃≤T
A
≤85℃
T
A
=-40℃≤T
A
≤85℃
V
FB
=0.65V
V
IN
=2.5V to 5.5V, V
OUT
=V
FB
(R2=0)
FSP3100C12AD: -40℃≤T
A
≤85℃
FSP3100C15AD: -40℃≤T
A
≤85℃
FSP3100C18AD: -40℃≤T
A
≤85℃
V
IN
=2.5V to 5.5V, I
OUT
=10mA
I
OUT
from 0 to 600mA
V
IN
=3.0V
V
FB
=0.6V or V
OUT
=100%
I
SW
=300mA
I
SW
=-300mA
V
IN
=3V, V
FB
=0.5V or V
OUT
=90%,
Duty Cycle＜35%
V
RUN
=0V, V
SW
=0V or 5V, V
IN
=5V
ΔV
OVL
=V
OVL
-V
FB
-40℃≤T
A
≤85℃
0.5880
0.5865
0.5850
Min.
2.5
Typ.
270
0.08
0.6000
0.6000
0.6000
0.11
1.200
1.500
1.800
0.11
0.0015
1.5
0.30
0.20
1.20
Max.
5.5
400
1.0
0.6120
0.6135
0.6150
±30
0.40
1.236
1.545
1.854
0.40
1.8
0.50
0.45
Unit
V
uA
V
V
V
nA
%/V
V
V
V
%/V
%/mA
mA
MHz
Ω
Ω
A
FSP3100
1.164
1.455
1.746
600
1.2
SW Leakage
uA
±0.01
±1
60
mV
Output over voltage lockout
0.3
0.45
1.30
V
RUN Threshold
RUN Leakage Current
uA
±0.
1
±1
Note 4: 100% production test at +25℃. Specifications over the temperature range are guaranteed by design and
characterization.
3/11
2007-1-29
FOSLINK [ FOSLINK SEMICONDUCTOR CO.,LTD ]
