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PDF FP6137A Data sheet ( Hoja de datos )

Número de pieza FP6137A
Descripción 3A/2A Bus Termination Regulator
Fabricantes Fiti 
Logotipo Fiti Logotipo



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fitipower integrated technology lnc.
FP6137A/B
3A/2A Bus
Termination Regulator
Description
The FP6137A/B linear regulator is designed to
provide the transient peaks up to 3A/2A sourcing or
sinking capability for DDR SDRAM bus termination
application. The output voltage can track half of
input power by two external voltage divider resistors.
The FP6137A/B provides current limit in both
sourcing/sinking mode and thermal shutdown
function which protects the excessive heating due to
high current and high junction temperature.
The FP6137A are available in SOP-8 (exposed pad),
TO-252-5 and TO-263-5 packages. The FP6137B
are available in the SOP-8 (fused), SOP-8 (exposed
pad) and TO-252-5 packages.
Pin Assignments
SO Package (SOP-8<Fused>) (FP6137B)
VIN
GND
REFEN
VOUT
1
2
3
4
8 VCNTL
7 VCNTL
6 VCNTL
5 VCNTL
SP Package (SOP-8 Exposed Pad) (FP6137B)
VIN
GND
REFEN
VOUT
18
27
3 VCNTL 6
45
NC
NC
VCNTL
NC
SP Package (SOP-8 Exposed Pad) (FP6137A)
VIN
GND
REFEN
VOUT
1
2
GND
3
4
8
7
6
5
NC
NC
VCNTL
NC
T5 Package (TO-252-5) (FP6137A/B)
5 VOUT
4 REFEN
3 VCNTL (TAB)
2 GND
1 VIN
T6 Package (TO-263-5) (FP6137A)
5 VOUT
4 REFEN
3 VCNTL (TAB)
2 GND
1 VIN
Figure 1. Pin Assignment of FP6137 (Top View)
FP6137-2.1-MAR-2013
Features
3A/2A Source or Sink Current
Power MOSFET Integrated
Low Output Voltage Offset
Current Limit Protection
Thermal Shutdown Protection
Adjusted Output by External Resistors
Shutdown for Standby or Suspend Mode
SOP-8, TO-252-5 and TO-263-5 Packages
RoHS Compliant
Applications
DDR-I and DDR-II Bus Termination Voltage
SSTL-2 and SSTL-3 Termination
Active Termination Buses
Ordering Information
FP6137□□□□
TR: Tape/Reel
P: Green
G: Green
Package Type
SO: SOP-8 (Fused)
SP: SOP-8 (Exposed Pad)
T5: TO-252-5
T6: TO-263-5
A: 3A
B: 2A
1

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FP6137A pdf
fitipower integrated technology lnc.
FP6137A/B
Typical Performance Curves
0.65
0.60
0.55
0.50 V =3.3V
CNTL
0.45
0.40
0.35
0.30
V =5V
CNTL
0.25
0.20
-40
-20
0 20 40 60
Junction Temperature (oC)
80 100
Figure 4. Turn-On Threshold Voltage vs. Junction
Temperature
8
V =1.25V
OUT
6
4
2
V =5V
CNTL
0
-2
V =3.3V
-4 CNTL
-6
-8
-40
-20
0 20 40 60
Junction Temperature (oC)
80 100
Figure 6. Output offset (VOUT-VREFEN) vs. Junction
Temperature
6
V =5V, V =2.5V
CNTL
IN
5
V =3.3V, V =2.5V
CNTL
IN
4
3 V =3.3V, V =1.8V
CNTL
IN
2
V =5V, V =1.8V
CNTL
IN
1
Sourcing
0
-40 -20 0 20 40 60 80 100
Junction Temperature (oC)
Figure 8. Current Limit vs. Junction Temperature
FP6137-2.1-MAR-2013
0.65
0.60
0.55
0.50
V =5V
CNTL
0.45
0.40
0.35 V =3.3V
CNTL
0.30
0.25
0.20
-40
-20
0 20 40 60
Junction Temperature (oC)
80 100
Figure 5. Turn-Off Threshold Voltage vs. Junction
Temperature
8
V =0.9V
OUT
6
4
V =5V
CNTL
2
0
-2 V =3.3V
CNTL
-4
-6
-8
-40
-20
0 20 40 60
Junction Temperature (oC)
80 100
Figure 7. Output offset (VOUT-VREFEN) vs. Junction
Temperature
6
5
V =5V, V =2.5V
CNTL
IN
V =3.3V, V =2.5V
CNTL
IN
4
3
V =5V, V =1.8V
CNTL
IN
2
V =3.3V, V =1.8V
CNTL
IN
1
Sinking
0
-40 -20 0 20 40 60 80 100
Junction Temperature (oC)
Figure 9. Current Limit vs. Junction Temperature
5

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