PT5500 Series
3-A 5-V/3.3-V Input Adjustable
Integrated Switching Regulator
Specifications (Unless otherwise stated, Ta =25°C, Vin =5V,Cout =100µF, and Io =Iomax)
PT5500 SERIES
Typ
Characteristics
Symbols
Conditions
Min
Max
Units
Output Current
InputVoltageRange
Io
Vin
Over Vin range
Over Io range
0.1 (1)
=3.3V4.5
—
—
3.0
5.5
A
V
Vo
Vo≤2.5V3.1
5.5
Set-PointVoltageTolerance
TemperatureVariation
Line Regulation
Load Regulation
TotalOutputVariation
Vo tol
—
—
—
—
—
0.5
—
—
2
—
6
%Vo
%Vo
mV
∆Regtemp
∆Regline
∆Regload
∆Regtot
–40°C <Ta < +85°C
Over Vin range
Over Io range
10
mV
Includes set-point, line, load,
—
—
3
%Vo
–40°C ≤ Ta ≤ +85°C
Efficiency
η
PT5501
PT5502
PT5503
PT5504
PT5505
PT5506
PT5507
—
—
—
—
—
—
—
90
87
85
83
81
79
76
—
—
—
—
—
—
—
%
Vo Ripple (pk-pk)
Vr
20MHz bandwidth
—
25
45
mV
Transient Response
ttr
∆Vtr
1A/µs load step from 50% to 100% Iomax
Vo over/undershoot
—
—
50
50
—
100
µSec
mV
Current Limit
Switching Frequency
Ilim
ƒo
—
—
5
—
—
A
kHz
Over Vin and Io ranges
350 (2)
Inhibit Control (pin1)
InputHighVoltage
InputLowVoltage
Input Low Current
(3)
V IH
V IL
IIL
Cout
T
a
Referenced to GND (pin3)
Pin 1 to GND
Vin –0.5
–0.2
—
Open
0.5
V
—
—
–0.5
—
—
—
mA
µF
°C
(4)
External Capacitance
100
—
Absolute Maximum
Over Vin range
—
Per Mil-STD-883D, Method 2002.3 , 1 msec,
Half Sine, mounted to a fixture
–40 (5)
+85 (6)
Operating Temperature Range
Storage Temperature
Mechanical Shock
T
s
-40
—
—
500
+125
—
°C
G’s
MechanicalVibration
Per Mil-STD-883D, Method 2007.2,
20-2000 Hz, Soldered in a PC board
—
(7)
—
—
15
—
—
G’s
grams
Weight
Flammability
—
—
6.5
Materials meet UL 94V-0
Notes: (1) The ISR will operate down to no load with reduced specifications.
(2) This is a typical value only. The switching frequency will vary with input voltage.
(3) The Inhibit control (pin 1) 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 is recommended to control this input. Ensure an On/Off transition time of ≤10µs. See application notes for more information.
(4) The PT5500 Series requires a 100µF electrolytic or tantalum output capacitor for proper operation in all applications.
(5) For operation below 0°C, the output capacitor C2 must have stable characteristics. Use either a low ESR tantalum or Oscon® capacitor.
(6) See SOA curves or consult factory for the appropriate derating.
(7) The case pins on the through-hole package types (suffixes N & A) must be soldered. For more information see the applicable package outline drawing.
For technical support and more information, see inside back cover or visit www.ti.com