PT7615 Datasheet, PDF (2/7 Pages) Texas Instruments – 20-A Low-Voltage Programmable Integrated Switching Regulator

PT7615—5V
20-A Low-Voltage Programmable
Integrated Switching Regulator
Programming Information
VID3 VID2 VID1 VID0
1111
1110
1101
1100
1011
1010
1001
1000
0111
0110
0101
0100
0011
0010
0001
0000
VID4=1
Vout
1.075V
1.100V
1.125V
1.150V
1.175V
1.200V
1.225V
1.250V
1.275V
1.300V
1.325V
1.350V
1.375V
1.400V
1.425V
1.450V
VID4=0
Vout
1.475V
1.500V
1.525V
1.550V
1.575V
1.600V
1.625V
1.650V
1.675V
1.700V
1.725V
1.750V
1.775V
1.800V
1.825V
1.850V
Logic 0 = Pin 12 potential (Rem Sense Gnd)
Logic 1 = Open circuit (no pull-up resistors)
VID4 may not be changed while the unit is operating.
20-A Programmable SIP Family
Product
PT7709
Input
Voltage
5V
Description
VID
Adjust
Method
5-Bit
PT7708 3.3V
VID
4-Bit
PT7615
5V
VID
5-Bit
PT7742 3.3V
Booster
—
PT7743
5V
Booster
—
Output
Range
1.3V– 3.5V
1.3V– 2.05V
1.075V–1.85V
—
—
Specifications (Unless otherwise stated, Ta =25°C, Vin =5V, Cin =1,500µF, Cout =330µF, and Io =Iomax)
PT7615
Characteristics
Symbols
Conditions
Min
Typ
Max
Units
Output Current
Input Voltage Range
Set-Point Voltage Tolerance
Temperature Variation
Line Regulation
Load Regulation
Total Output Voltage Variation
Efficiency
Vo Ripple (pk-pk)
Transient Response
Short Circuit Threshold
Switching Frequency
STBY* Input Requirements
Input High Voltage
Input Low Voltage
Input Low Current
Standby Input Current
External Capacitance
Operating Temperature Range
Storage Temperature
Mechanical Shock
Mechanical Vibration
Weight
Flammability
Io
Vin
Vo tol
Regtemp
Regline
Regload
∆V_o tol
η
Vr
ttr
Vos
Isc (pk)
ƒs
VIH
VIL
IIL
Iin standby
C_out
Ta
Ts
—
—
Ta = +60°C, 200 LFM, pkg N
Ta = +25°C, natural convection
Over Io range
–40°C ≤Ta ≤ +85°C
Over Vin range
Over Io range
Set-point, line, load
–40°C ≤Ta ≤ +85°C
Io = 10A
Io = 20A
20MHz bandwidth
1A/µs load step, 10A and 20A
Vo over/undershoot
Vo = 1.8V
Vo = 1.5V
Vo = 1.2V
Vo = 1.8V
Vo = 1.5V
Vo = 1.2V
Over Vin range
Referenced to GND
Pin 5 to GND
Pin 5 to GND
Over Vin Range
—
Per Mil-STD-883D, Method 2002.3
1 msec, Half Sine, mounted to a fixture
Per Mil-STD-883D, Method 2007.2,
20-2000 Hz, Soldered in a PC board
Vertical/Horizontal
Materials meet UL 94V-0
0.1 (1)
0.1 (1)
4.5
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
300
2.0
-0.2
—
—
330 (4)
–40
-40
—
—
—
—
—
—
±10
±1.5
±5
±5
±2
87
84
81
82
79
75
40
50
±100
32
350
—
—
0.3
30
—
—
—
500
10
36
20
20
5.5
±25 (2)
—
±10
±10
±3
—
—
—
—
—
—
—
—
—
—
400
A
V
mV
%Vo
mV
mV
%Vo
%
%
mVpp
µSec
mV
A
kHz
Open (3)
0.8
V
—
mA
—
mA
15,000 µF
+85 (5)
°C
+125
°C
—
G’s
—
G’s
—
grams
Notes: (1) ISR-will operate down to no load with reduced specifications.
(2) If the remote sense 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.
External Capacitors: The PT7615 require a minimum output capacitance of 330µF for proper operation. The PT7615 also requires an input capacitance of 1500µF,
which 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
information 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 10ADC with a typical value of 1µH.
For technical support and more information, see inside back cover or visit www.ti.com