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PT8105N Datasheet(PDF) 5 Page - Texas Instruments

Part # PT8105N
Description  40-A 3.3/5-V Input Programmable Integrated Switching Regulator
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

PT8105N Datasheet(HTML) 5 Page - Texas Instruments

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For technical support and more information, see inside back cover or visit www.ti.com
5
PT8100 Series
40-A 3.3/5-V Input Programmable
Integrated Switching Regulator
PT8103/5 Specifications (Unless otherwise stated Ta =25°C, C1 =1,500µF, C2 =660µF, Vin =3.3V, & Io = 40A )
PT8103/5, Vin =3.3V
Characteristics
Symbols
Conditions
Min
Typ
Max
Units
Output Current
Io
25°C, natural convection
0.1 (1)
—39
A
60°C with 200LFM airflow
0.1 (1)
—40
Input Voltage Range
Vin
Over Io Range
3.1
3.6
V
Set-Point Voltage Tolerance
Vo tol
Over Vo range
±1
±2
%V
Line Regulation
∆Regline
Over Vin range
±5
mV
Load Regulation
∆Regload
Over Io range
±5
mV
Temperature Variation
∆Regtemp
–40°C
≤Ta ≤85°C
±0.5
%Vo
Total Output Voltage Variation
∆Votot
Includes set-point, line, load,
±3
%V
–40°C
≤Ta ≤ 85°C
Efficiency
η
Io =20
Vo =1.8V
90
Vo =1.5V
89
%
Vo =1.2V
87
Vo =0.8V
84
Io =40
Vo =1.8V
86
Vo =1.5V
84
%
Vo =1.2V
82
Vo =0.8V
78
Vo Ripple (pk-pk)
Vr
20MHz bandwidth
25
mV
Transient Response (Vo =1.2V)
ttr
1A/µs load step, 50% to 100% Iomax
25
µSec
∆Vtr
Vo over/undershoot
30
mV
Short Circuit Threshold
Iosc
60
A
Switching Frequency
ƒo
Over load range
300
350
400
kHz
Standby Control (pin 6)
Input High Voltage
VIH
Referenced to GND (pins 17–22)
Open (2)
V
Input Low Voltage
VIL
-0.2
0.8
Input Low Current
IIL
Pin 6 to GND
0.5
mA
Standby Input Current
Iin standby
Pin 6 to GND
35
mA
External Output Capacitance
C2
See application schematic
660 (5)
15,000
µF
External Input Capacitance
C1
See application schematic
1,500
µF
Operating Temperature Range
Ta
Over Vin Range
–40 (3)
—+85 (4)
°C
Storage Temperature
Ts
-40
+125
°C
Mechanical Shock
Per Mil-STD-883D, Method 2002.3
1 msec, Half Sine, mounted to a fixture
500
G’s
Mechanical Vibration
Mil-STD-883D, Method 2007.2
Vertical
20 (6)
G’s
20-2000 Hz, soldered in PCB
Horizontal
20 (6)
Weight
Vertical/Horizontal
55
grams
Flammability
Materials meet UL 94V-0
Notes: (1) ISR-will operate down to no load with reduced specifications.
(2) The Standby input (pin 6) has an internal pull-up. If it is left open-circuit the module will operate when input power is applied. A low-leakage
MOSFET is recommended to control this input. The open-circuit voltage is nominally 5V. See application notes for interface considerations.
(3) For operation below 0°C, Cout must have stable characteristics. Use either low ESR tantalum or Oscon® capacitors.
(4) See safe Operating Area curves or consult factory for the appropriate derating.
(5) The PT8100 regulators require a minimum of 660µF, low ESR ouput capacitance (1,200µF for standard aluminum electrolytic) for proper operation.
(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.
Input Filter: The filter components L1 and C3 are optional for most applications. The inductor must be rated to handle the projected input current. A rating of 30ADC is
recommended. The input capacitance, C1 must be rated for a minimum of 1Arms of ripple current. For transient or dynamic load applications, additional capacitance
may be required. For more information refer to the application note on capacitor recommendations for this product.


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