PT6460_14 Datasheet, PDF (3/12 Pages) Texas Instruments – 14 A Output Current

PT6460 Series
14-A 5-V Input Adjustable
Integrated Switching Regulator
SLTS178B - JANUARY 2003 - REVISED JUNE 2003
Pin Descriptions
V_IN: The positive supply voltage input for the module
with respect to the common GND.
V_OUT: This is the regulated output voltage from the mod-
ule with respect to the common GND.
GND: The common node to which the input, output, and
external control signals are referenced.
Inhibit*: This is an open-collector (open-drain) negative
logic input that is referenced to GND. Pulling this pin
low disables the module’s output voltage. If Inhibit* is
left open-circuit, the output will be active whenever a
valid input source is applied.
V_o Adjust: This pin is used to trim the output voltage
over a typical range of ±15 % of nominal. The adjust-
ment method uses an external resistor. The resistor is
connected from V_o Adjust to either the GND or (+)Sense,
in order to adjust the output either up or down, respec-
tively. Consult the related application note for the adjust
limits on a specific part.
Vsense: An external remote sense input is provided to
allow the regulation circuit to compensate for voltage
drop between the module and the load. For optimal
voltage accuracy Vsense should be connected to V_OUT. If
desired, Vsense may also be left open circuit.
Typical Characteristics
Performance Data; V_in =5.0 V (See Note A)
Efficiency vs Output Current
100
90
PT6461
PT6462
80
PT6463
PT6464
70
PT6465
PT6466
PT6467
60
50
0
2
4
6
8
10
12
14
Iout (A)
Power Dissipation vs Output Current
5
4
3
2
1
0
0
2
4
6
8
10
12
14
Iout (A)
Output Ripple vs Output Current
50
40
PT6462
PT6463
30
PT6464
PT6461
20
PT6465
PT6466
PT6467
10
0
0
2
4
6
8
10
12
14
Iout (A)
Note A: Characteristic data has been developed from actual products tested at 25°C. This data is considered typical data for the ISR.
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