PT6400 Series
3 Amp 5V Input Adjustable Integrated Switching Regulator
SLTS032A
(Revised 6/30/2000)
• Single-Device 5V...
PT6400 Series
3 Amp 5V Input Adjustable Integrated Switching Regulator
SLTS032A
(Revised 6/30/2000)
Single-Device 5V to 3V Power 85% Efficiency Small SIP Footprint Adjustable Output
Voltage
The PT6400 is a high performance +5V to +3.3V, 3 Amp, 12-Pin SIP (Single In-line Package) Integrated Switching Regulator (ISR) designed for stand alone (not parallelable) operation. This high-performance ISR
allows easy integration of low-power 3.3V logic IC’s into existing 5V systems without redesigning the central power supply. Only two external
capacitors are required for proper operation. The output
voltage is easily adjustable with one external resistor. The PT6406,7,8 can be used to terminate high-speed data buses such as Futurebus (+2.1V) or the new GTL (+1.2V) logic buses.
Please note that this product does not include short circuit protection.
Standard Application
V IN
2,3,4
C1 + 100µF
COM
PT6400
5,6,7,8
12
9,10,11
R1
(V OUP)
R2
(V ODOWN)
V OUT
C2 + 100µF
COM
C1 = Required 100µF electrolytic C2 = Required 100µF electrolytic
Pin-Out Information
Pin Function
1 Do not connect 2 Vin 3 Vin 4 Vin 5 GND 6 GND 7 GND 8 GND 9 Vout 10 Vout 11 Vout 12 VoutAdjust
Ordering Information
PT6404
= +1.5 Volts PT6405
= +3.3 Volts PT6406
= +1.8 Volts PT6407
= +2.1 Volts PT6408
= +1.2 Volts PT6409
= +2.5 Volts
Pkg Style 300 PT6400
PT Series Suffix (PT1234X)
Case/Pin Configuration Vertical Through-Hole Horizontal Through-Hole Horizontal Surface Mount
P D E
Note: Back sur...