Rainbow Electronics BD3531F - Manual

Absolute Maximum Ratings Ta=25˚C
Input voltage
Power dissipation 2
Operating temperature range
Storage temperature range
Parameter Symbol Limits Unit
1 Should not exceed Pd.
2 Reduced by 4.48mW for each increase in Ta of 1˚C over 25˚C(With no heat sink).
3 Reduced by 5.52mW for each increase in Ta of 1˚C over 25˚C(PCB(70mm 70mm 1.6mm)glass epoxy mounting.)
VCC
Pd 2
Topr
Tstg
690
+
100
+
150
-10
-55
mW
˚C
˚C
V
Termination input voltage VTT_IN V
VDDQ reference voltage VDDQ 7 V
3
Power dissipation 1 Pd1 560 mW 2
1
7 1
7 1
BD3531F
DDR-SDRAM Termination Regulator
BD3531F is a regulator developed as termination
power supply of standard DDR-SDRAM that is
used for PC.
Industry's highest speed of transient response
characteristic is realized. The built-in FET can sink
and source load current of 1.5A(max.)
Waveform quality when data is transferred at high
speed can't be deteriorated.
BD3531F meets the bus line standards SSTL-2 of
DDR-SDRAM.
High-reliability can be realized for any applications
using DDR-SDRAM.
Description Dimension (Unit : mm)
1) Built-in push-pull regulator for termination(VTT)
2) Built-in reference voltage circuit(VREF)
3) Built-in enable function
4) Built-in under voltage lock out circuit
5) Package SOP8
6) Built-in thermal shut down circuit
Features
Note personal computer, Desktop personal computer
Applications
SOP8
0.
3M
in
.
0.15 ±0.1
0.4 ±0.1
0.
11
6.
2±
0.
3
4.
4±
0.
2
5.0 ±0.2
8 5
4 1
1.27
1.
5±
0.
1
0.1