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FSP3112LAD Datasheet(PDF) 3 Page - FOSLINK SEMICONDUCTOR CO.,LTD

Part # FSP3112LAD
Description  DUAL CHANNEL1.5 MHZ, 600MA SYNCHRONOUS STEP-DOWN CONVERTER
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Manufacturer  FOSLINK [FOSLINK SEMICONDUCTOR CO.,LTD]
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FSP3112LAD Datasheet(HTML) 3 Page - FOSLINK SEMICONDUCTOR CO.,LTD

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DUAL CHANNEL1.5 MHZ, 600MA SYNCHRONOUS STEP-DOWN CONVERTER
2007-7-11
3/10
FSP3112
ABSOLUTE MAXIMUM RATINGS (NOTE 1)
Parameter
Rating
Unit
Input Supply Voltage
-0.3 to +6
V
RUN1, RUN2
-0.3 to VIN+0.3
V
VFB1, VFB2 Voltages
-0.3 to VIN+0.3
V
SW1, SW2 Voltages
-0.3 to VIN+0.3
V
POR Voltages
-0.3 to +6
V
Peak SW1,SW2 Sink and Source Current
1.5
A
Operating Temperature Range
-40 to +85
Junction Temperature (Note 2)
+125
Storage Temperature Range
-65 to 150
Lead Temperature (soldering, 10 sec.)
+300
Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired.
Note 2: TJ is calculated from the ambient temperature TA and power dissipation PD according to the following formula:
TJ=TA+PD×θJA
ELECTRICAL CHARACTERISTICS (NOTE 3)
(VIN=VRUN=3.6V, TA=25℃, Test circuit of Figure 1, Unless otherwise noted)
Parameter
Condition
Min.
Typ.
Max.
Unit
Input Voltage Range
2.5
5.5
V
Input DC Supply Current
Active Mode
Shutdown Mode
VFB1=VFB2=0.5V,
RUN=0V, VIN=4.2V
500
0.3
800
2
µA
TA=+25℃, Channel 1 or 2
0.5880
0.6000
0.6120
V
TA=0℃≤TA≤85℃, Channel 1 or 2
0.5865
0.6000
0.6135
V
Regulated Feedback Voltage
TA=-40℃≤TA≤85℃, Channel 1 or 2 0.5850 0.6000 0.6150
V
Feedback Pin Input Current
VFB=0.65V
±
30
nA
Reference Voltage Line Regulation
VIN=2.5V to 5.5V
0.11
0.40
%/V
Output Voltage Line Regulation
VIN=2.5V to 5.5V, VOUT=1.8V,
IOUT=10mA
0.11
0.40
%/V
Output Voltage Load Regulation
VIN=3.6V, IOUT=0 to 600mA,
0.0015
%/mA
Maximum Output Current
VIN=3.0V
600
mA
Oscillator Frequency
VFB 1/2= 0.6V
1.2
1.5
1.8
MHz
RDS(ON) of P-CH MOSFET
ISW=300mA
0.35
0.45
Ω
RDS(ON) of N-CH MOSFET
ISW=-300mA
0.28
0.45
Ω
Peak Inductor Current
VIN=3V,VFB1=VFB2=0.5V,
Duty cycle<35%
1.2
A
SW Leakage
VRUN=0V, VSW=0V or 5V, VIN=5V
±
0.01
±
1
µA
RUN Threshold
-40℃≤TA≤85℃
0.3
0.45
1.50
V
RUN Leakage Current
±
0.1
±
1
µA
VFBX Ramping Up
8.5
%
VFBX Ramping Down,
-8.5
%
Power-On Reset Delay
175
mS
Power-On Reset Threshold (POR)
Power-On Reset On-Resistance
100
Ω
Note 3: 100% production test at +25℃. Specifications over the temperature range are guaranteed by design and
characterization.
THERMAL RESISTANCE (NOTE 4)
Package
θJA (℃/W)
θJC (℃/W)
MSOP-10 (EXPOSE PAD)
45
10
DFN-10 (EXPOSE PAD)
45
10
Note 4: Thermal Resistance is specified with approximately 1 square of 1 oz cooper.


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