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PT6722—12V

14-A Low-Voltage Programmable

Integrated Switching Regulator

Logic 0 = Pin 13 potential (remote sense gnd)

Logic 1 = Open circuit (no pull-up resistors)

VID4 may not be changed while the unit is operating.

Programming Information

VID4=1

VID4=0

VID3

VID2

VID1

VID0

Vout

Vout

1

1110.000V

1.475V

1

1101.100V

1.500V

1

1

0

1

1.125V

1.525V

1

1

0

0

1.150V

1.550V

1

0

1

1

1.175V

1.575V

1

0

1

0

1.200V

1.600V

1

0

0

1

1.225V

1.625V

1

0

0

0

1.250V

1.650V

0

1

1

1

1.275V

1.675V

0

1

1

0

1.300V

1.700V

0

1

0

1

1.325V

1.725V

0

1

0

0

1.350V

1.750V

0

0

1

1

1.375V

1.775V

0

0

1

0

1.400V

1.800V

0

0

0

1

1.425V

1.825V

0

0

0

0

1.450V

1.850V

PT6700 Product Family Comparison

Input

Adjust

Program

OVP/

+12V Bias

Voltage

Method

Range

Pwr Good Required

PT6701

5V

5-Bit

1.3V– 3.5V

ü

PT6702

3.3V

4-Bit

1.3V– 2.05V

ü

PT6703

3.3V/5V

5-Bit

1.1V– 1.85V

ü

# PT6705

5V

Resistor

1.5V–3.3V

ü

# PT6715

5V

Resistor

1.5V–3.3V

PT6721

12V

5-Bit

1.3V– 3.5V

ü

PT6722

12V

5-Bit

1.1V– 1.85V

ü

# PT6725

12V

Resistor

1.5V–5.0V

# –Indicates a series of products that have a nominal output voltage

set-point and may be adjusted with an external resistor.

PT6722

Characteristic

Symbol

Conditions

Min

Typ

Max

Units

Output Current

—14

A

—14

Input Voltage Range

10.8

—

13.2

VDC

Set Point Voltage Tolerance

—

±10

mV

Temperature Variation

—

±0.5

—

Line Regulation

—

±2.5

±5

mV

Load Regulation

—

±2.5

±10

mV

Total Output Voltage Variation

Includes set-point, line, load,

—

±25

±36

mV

Efficiency

η

—

83

—

%

—

78

—

20MHz bandwidth

—

20

—

TransientResponse

0.1A/µs load step, 6A to 12A

—

50

—

µs

—

±70

—

mV

Short Circuit Current

—

2030A

Switching Frequency

300

350

400

kHz

Standby Control (pin 8)

Input High Voltage

Referenced to GND (pin 14)

4.0

—

V

Input Low Voltage

–0.2

0.4

1.0

Input Low Current

Pin 8 to GND

—

10

–

µA

Standby Input Current

pins 8 & 14 connected

—

5

10

mA

External Output Capacitance

—

15,000

µF

Operating Temperature Range

-40

—

°C

Storage Temperature

—

-40

—

+125

°C

Reliability

MTBF

Per Bellcore TR-332

11.7

—

—

Mechanical Shock

—

Per Mil-Std-883D, method 2002.3,

—

500

—

G’s

1mS, half-sine, mounted to a fixture

Mechanical Vibration

—

Per Mil-Std-883D, method 2007.2,

—

—G’s

20-2000Hz, soldered in a PC board

Weight

—

—

—

26

—

grams

Flammability

—

Materials meet UL 94V-0

Notes:

(1) ISR-will operate down to no load with reduced specifications.

(2) If the remote sense ground is not used, pin 13 must be connected to pin 14 for optimal output voltage accuracy.

(3) The Standby control (pin 8) has an internal pull-up, and if left open-circuit the module will operate when input power is applied. A small low-leakage (<100nA)

MOSFET must be used to control this input. The open-circuit voltage is less than 10V. See application notes for further information.

(4) For operation below 0°C, Cin and Cout must have stable characteristics. Use either low ESR tantalum or Oscon® capacitors.

(5) See Safe Operating Area curves.

(6) The case pins on the through-hole package types (suffixes N & A) must be soldered. For more information see the applicable package outline drawing.

External Capacitors: The PT6722 requires a minimum ouput capacitance of 330µF, and a minimum input capacitance of 1,000µF for proper operation. The input

capacitance must be rated for a minimum of 1.6Arms of ripple current. For transient or dynamic load applications, additional input and output capacitance may be

required.The maximum allowable output capacitance is 15,000µF. For more information refer to the application note regarding capacitor selection for this product.

Input Inductor: An input filter inductor is optional for most applications. The inductor must be sized to handle 3ADC with a typical value of 1µH.