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PT7712VD Datasheet(PDF) 2 Page - Texas Instruments

Part # PT7712VD
Description  20-A Programmable Integrated Switching Regulator
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

PT7712VD Datasheet(HTML) 2 Page - Texas Instruments

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For technical support and more information, see inside back cover or visit www.ti.com
PT7710 Product Family Comparison
Input
Adjust
Output
Product
Voltage
Description
Method
Range
PT7711
5V
VID
5-Bit
1.3V– 3.5V
PT7712
3.3V
VID
4-Bit
1.3V– 2.05V
PT7713
3.3V
VID
4-Bit
1.8V– 2.55V
PT7714
3.3V
VID
5-Bit
0.8V–1.575V
PT7715
5V
VID
5-Bit
1.075V–1.85V
PT7716
3.3V
VID
5-Bit
1.075V–1.85V
PT7744
3.3V
Booster
PT7745
5V
Booster
PT7712—3.3V
20-A Programmable
Integrated Switching Regulator
Programming Information
VID3 VID2 VID1 VID0
Vout
111
1
1.30V
111
0
1.35V
110
1
1.40V
110
0
1.45V
101
1
1.5V
101
0
1.55V
100
1
1.60V
1
0
0
0
1.65V
0
1
1
1
1.70V
0
1
1
0
1.75V
0
1
0
1
1.80V
0
1
0
0
1.85V
0
0
1
1
1.90V
0
0
1
0
1.95V
0
0
0
1
2.00V
0
0
0
0
2.05V
Logic 0 = Pin 12 potential (remote sense gnd)
Logic 1 = Open circuit (no pull-up resistors)
VID3 must not be changed while the unit is operating.
Specifications (Unless otherwise stated, Ta =25°C, Vin =3.3V, Cin =1,500µF, Cout =330µF, Vo =1.8V, and Io =Iomax)
PT7712
Characteristics
Symbols
Conditions
Min
Typ
Max
Units
Output Current
Io
Ta = +25°C, Natural convection
0.1 (1)
—20
A
Ta = +60°C, 200 LFM, pkg N
0.1 (1)
—19
Input Voltage Range
Vin
Over Io range
3.1
3.6
V
Set-Point Voltage Tolerance
Vo tol
All output voltages
±10
±25 (2)
mV
Temperature Variation
Regtemp
–40°C
≤Ta ≤+85°C, Io =Iomin
±0.75
%Vo
Line Regulation
Regline
Over Vin range
±5
mV
Load Regulation
Regload
Over Io range
±5
mV
Total Output Voltage Variation
∆Vo tol
Includes set-point, line, load,
±1±3%Vo
–40°C
≤Ta ≤+85°C
Efficiency
η
Io =10A
Vo =1.8V
87
%
Vo =1.5V
85
Io =20A
Vo =1.8V
83
%
Vo =1.5V
81
Vo Ripple (pk-pk)
Vr
20MHz bandwidth
50
mVpp
Transient Response
ttr
1A/µs load step, 50% and 100% Iomax
50
µSec
Vos
Vo over/undershoot
±100
mV
Over-Current Threshold
ITRIP
Reset followed by auto-recovery
32
A
Switching Frequency
ƒo
Over Vin range
300
350
400
kHz
STBY* Input Requirements
Referenced to GND
Input High Voltage
VIH
2.0
Open (3)
V
Input Low Voltage
VIL
-0.2
0.8
Input Low Current
IIL
Pin 5 to GND
0.3
mA
Standby Input Current
Iin standby
Pin 5 to GND
30
mA
External Capacitance
Cout
330 (4)
15,000
µF
Operating Temperature Range
Ta
Over Vin Range
–40
+85 (5)
°C
Storage Temperature
Ts
-40
+125
°C
Mechanical Shock
Per Mil-STD-883D, Method 2002.3
500
G’s
1 msec, Half Sine, mounted to a fixture
Mechanical Vibration
Mil-STD-883D, Method 2007.2
Suffixes N, A
20 (6)
G’s
20-2000 Hz
Suffix C
15 (6)
Weight
Vertical/Horizontal
36
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 12 must be connected to pin 13 for optimum output voltage accuracy.
(3) The STBY* control (pin 5) has an internal pull-up. If it is left open-circuit, the module will operate when input power is applied. A low-leakage (<1µA)
MOSFET must be used to control this pin. The open-circuit voltage may be as high as Vin.
(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 or consult factory for the appropriate derating.
(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 regulator requires a minimum output capacitance of 330µF for proper operation. An input capacitance of 1500µF is also required. This
must be rated for a minimum of 1.4Arms of ripple current. For transient or dynamic load applications, additional capacitance may be required. For further informa-
tion refer to the application note regarding capacitor selection for this product.
Input Filter: An input filter inductor is optional for most applications. The inductor must be sized to handle 20ADC with a typical value of 1µH.


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