PT6705 Datasheet, PDF (2/6 Pages) Texas Instruments – 13 Amp 5V/3.3V Input Adjustable Integrated Switching Regulator

PT6705 Series
13 Amp 5V/3.3V Input Adjustable
Integrated Switching Regulator
Ordering Information
PT6705J = 3.3 Volts
PT6706J = 2.5 Volts
PT6707J = 1.8 Volts
PT6708J = 1.5 Volts
PT Series Suffix (PT1234X)
Case/Pin
Configuration
Vertical Through-Hole N
Horizontal Through-Hole A
Horizontal Surface Mount C
PT6700 Product Family
PT6701
Input
Voltage
5V
Vout
Adjust
VID
PT6702 3.3V VID
PT6705
5V Resistor
OVP/
Pwr Good


Requires
+12V Bias

(For dimensions and PC board layout,
see Package Styles 1340 and 1350.)
PT6715
5V Resistor
PT6721 12V
VID

Filter/Capacitor Selection
PT6725 12V Resistor
Output Capacitors: The PT6705 requires a minimum ouput capacitance of 330µF for proper operation. The maximum allowable output capacitance is 15,000µF.
Input Filter: An input filter is optional for most applications. The input inductor must be sized to handle 10ADC with a typical value of 1µH. The input capacitance must
be rated for a minimum of 2.0Arms of ripple current. For transient or dynamic load applications, additional capacitance may be required.
TYPICAL CHARACTERISTICS
All Models, V_in =5.0V (Note A)
Efficiency vs Output Current
100
95
90
85
80
75
70
65
60
0
2
4
6
8
10
12
Iout (A)
Power Dissipation vs Output Current
6
Vout
3.3V
2.5V
1.8V
1.5V
14
PT6707, PT6708, V_in =3.3V (Note A)
Efficiency vs Output Current
100
95
90
85
V_out
1.8V
80
1.5V
75
70
65
60
0
2
4
6
8
10
12
14
Iout (A)
Power Dissipation vs Output Current
6
5
5
4
4
Vout
Vout
3
3.3V
1.5V
3
1.8V
1.5V
2
2
1
1
0
0
2
4
6
8
10
12
14
Iout (A)
Safe Operating Area, PT6705, V_in =5.0V (Note B)
90.0
80.0
70.0
Airflow
200LFM
60.0
120LFM
50.0
60LFM
Nat conv
40.0
30.0
20.0
0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0
Iout (A)
0
0
2
4
6
8
10
12
14
Iout (A)
Safe Operating Area, PT6707, V_in =3.3V (Note B)
90.0
80.0
70.0
Airflow
200LFM
60.0
120LFM
50.0
60LFM
Nat conv
40.0
30.0
20.0
0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0
Iout (A)
Note A: All data in the above graphs has been developed from actual products tested at 25°C. This data is considered typcial for the ISR.
Note B: SOA curves represent the conditions at which internal components are at or below the manufacturer’s maximum operating temperatures.
For technical support and more information, see inside back cover or visit www.ti.com/powertrends