1.5 MHZ, 600MA SYNCHRONOUS STEP-DOWN CONVERTER
FSP3100
ELECTRICAL CHARACTERISTICS (NOTE 4)
(VIN=VRUN=3.6V, TA=25℃, Unless otherwise noted)
Parameter
Condition
Min.
Typ.
Max.
Unit
Input Voltage Range
2.5
5.5
V
Input DC Supply Current
Active Mode
VFB=0.5V
VFB=0V, VIN=4.2V
270
0.08
400
1.0
uA
Shutdown Mode
TA=+25℃
TA=0℃≤TA≤85℃
TA=-40℃≤TA≤85℃
0.5880 0.6000 0.6120
0.5865 0.6000 0.6135
0.5850 0.6000 0.6150
±30
V
V
V
nA
%/V
V
V
V
%/V
%/mA
mA
MHz
Ω
Regulated Feedback Voltage
VFB Input Bias Current
Reference Voltage Line Regulation
VFB=0.65V
VIN=2.5V to 5.5V, VOUT=VFB (R2=0)
FSP3100C12AD: -40℃≤TA≤85℃
FSP3100C15AD: -40℃≤TA≤85℃
FSP3100C18AD: -40℃≤TA≤85℃
VIN=2.5V to 5.5V, IOUT=10mA
IOUT from 0 to 600mA
0.11
1.200
1.500
1.800
0.11
0.40
1.236
1.545
1.854
0.40
1.164
1.455
1.746
Regulated Output Voltage
Output Voltage Line Regulation
Output Voltage Load Regulation
Maximum Output Current
Oscillator Frequency
0.0015
VIN=3.0V
VFB=0.6V or VOUT=100%
ISW=300mA
600
1.2
1.5
1.8
RDS(ON) of P-CH MOSFET
RDS(ON) of N-CH MOSFET
0.30
0.20
0.50
0.45
ISW=-300mA
Ω
VIN=3V, VFB=0.5V or VOUT=90%,
Duty Cycle＜35%
Peak Inductor Current
1.20
A
SW Leakage
Output over voltage lockout
RUN Threshold
VRUN=0V, VSW=0V or 5V, VIN=5V
±0.01
60
0.45
±1
uA
mV
V
ΔVOVL=VOVL-VFB
-40℃≤TA≤85℃
0.3
1.30
RUN Leakage Current
±0. 1
±1
uA
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 ]
