For technical support and more information, see inside back cover or visit www.ti.com
Ordering Information
PT5041
o = +12 Volts
PT5042
o = +15 Volts
PT5044
o = +8 Volts
PT5045
o = +9 Volts
PT5046
o = +10 Volts
PT5047
o = +18 Volts
PT5048
o = +12.6 Volts
PT5049
o = +20 Volts
Pin-Out Information
Standard Application
C
1
= Optional ceramic (1-5F)
C
2
= Optional ceramic (1-5F)
C
3
= Required Electrolytic (100F)
NOTE: Boost Topology ISRs are not Short-Circuit Protected.
Features
Wide Input Voltage Range
85% Efficiency
Internal Over-Temperature
Protection
Laser-trimmed Output Voltage
Soft Start
5-Pin Mount Option
(Suffixes L & M)
1-A Positive Step-up
Integrated Switching Regulator
PT5040 Series
Pin
Function
1
V
in
2
GND
3
V
out
SLTS026B
(Revised 12/19/2001)
PT Series Suffix
(PT1234
x
)
Case/Pin
Order
Package
Configuration
Suffix
Code *
Vertical
N
(EAD)
Horizontal
A
(EAA)
SMD
C
(EAC)
Horizontal, 2-pin Tab
M
(EAM)
SMD, 2-Pin Tab
L
(EAL)
* Previously known as package styles 100/110.
(Reference the applicable package code drawing
for the dimensions and PC board layout)
Description
The PT5040 is a series of 3-pin
boost-voltage Integrated Switching
Regulators (ISRs). These ISRs are
designed for use with +5V bus systems
that require an additional regulated
+8V to +20V with up to 1A of output
current. These ISRs are packaged in
the 3-pin, single in-line pin (SIP)
package configuration.
Specifications
(Unless otherwise stated, T
a
=25C, V
in
=5V, I
o
=I
o
max, C
3
=100F)
PT5040 SERIES
Characteristics
Symbol
Conditions
Min
Typ
Max
Units
Output Current
I
o
Over V
in
range
PT5049
0.1
(1)
--
0.5
PT5047
0.1
(1)
--
0.6
PT5041/48
0.1
(1)
--
1.0
A
PT5042
0.1
(1)
--
0.75
PT5044
0.1
(1)
--
1.5
PT5045/46
0.1
(1)
--
1.2
Input Voltage Range
V
in
Over Io range
4.75
--
(V
o
1)
V
PT5047/5049
4.75
--
14
Output Voltage Tolerance
V
o
Over V
in
Range
T
a
= -20C to SOA derating limit
(3)
--
1.5
3.0
%V
o
Line Regulation
Reg
line
Over V
in
range
--
0.5
1.0
%V
o
Load Regulation
Reg
load
I
o
min
I
o
I
o
max
--
0.5
1.0
%V
o
Efficiency
I
o
=0.5A
--
85
--
%
V
o
Ripple (pk-pk)
V
r
20MHz bandwidth
--
2
5
%V
o
Transient Response
t
tr
25% load change
--
500
--
Sec
V
os
V
o
over/undershoot
--
3.0
5.0
%V
o
Current Limit
I
lim
--
150
(2)
--
%I
o
max
Inrush Current
I
ir
On start up
--
5.5
(3)
--
A
t
ir
--
1
--
mSec
Switching Frequency
s
Over V
in
and I
o
ranges
V
o
<15V
500
650
800
kHz
V
o
>15V
650
800
950
Operating Temperature Range
T
a
--
-20
--
+85
(4)
C
Thermal Resistance
ja
Free Air Convection
--
40
--
C/W
(40-60LFM)
Storage Temperature
T
s
-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
Suffixes N, A, & C
--
5
--
G's
Per Mil-STD-883D, 20-2000 Hz
Suffixes L & M
--
20
(5)
--
Weight
Suffixes N, A, & C
--
4.5
--
grams
Suffixes L & M
--
6.5
--
Notes:
(1) The ISR will operate at no load with reduced specifications.
(2) Boost topology ISRs are not short circuit protected.
(3) The inrush current stated is above the normal input current for the associated output load.
(4) See Safe Operating Area curves or consult the factory for the appropriate derating
(5) The tab pins on the 5-pin mount package types (suffixes L & M) must be soldered. For more information see the applicable package outline drawing.
P T 5 0 4 0
3
2
1
C
3
100F
+
C
2
+V
out
COM
COM
+V
in
C
1
For technical support and more information, see inside back cover or visit www.ti.com
Typical Characteristics
PT5041, +12.0 VDC
(See Note A)
PT5042, +15.0 VDC
(See Note A)
Efficiency vs Output Current
Ripple Voltage vs Output Current
Power Dissipation vs Output Current
Efficiency vs Output Current
Ripple Voltage vs Output Current
Power Dissipation vs Output Current
Safe Operating Area (V
IN
=5V)
(See Note B)
Safe Operating Area (V
IN
=5V)
(See Note B)
Efficiency - %
Ripple-(mV)
PD-(W
atts)
Iout-(Amps)
Iout-(Amps)
PD-(W
atts)
Ripple-(mV)
Iout-(Amps)
Iout-(Amps)
Ambient T
emperature - (C)
Ambient T
emperature - (C)
Maximum Output Current - (Amps)
Maximum Output Current - (Amps)
Iout-(Amps)
Iout-(Amps)
4 0
5 0
6 0
7 0
8 0
9 0
1 0 0
0
0 .2
0 .4
0 .6
0 .8
1
11.0V
8.0V
6.0V
5.0V
V in
0
0.5
1
1.5
2
2.5
0
0.2
0.4
0.6
0.8
1
5.0V
6.0V
8.0V
11.0V
Vin
0
5 0
1 0 0
1 5 0
2 0 0
2 5 0
0
0 .2
0 .4
0 .6
0 .8
1
5.0V
6.0V
8.0V
11.0V
V in
4 0
5 0
6 0
7 0
8 0
9 0
10 0
0
0.1 5
0 .3
0.4 5
0 .6
0.7 5
14.0V
12.0V
10.0V
8.0V
6.0V
5.0V
V in
0
0.5
1
1.5
2
2.5
3
0
0.15
0.3
0.45
0.6
0.75
5.0V
6.0V
8.0V
10.0V
12.0V
14.0V
Vin
0
5 0
100
150
200
250
0
0.15
0 .3
0.45
0 .6
0.75
5 . 0 V
6 . 0 V
8 . 0 V
1 0 . 0 V
1 2 . 0 V
1 4 . 0 V
V in
Efficiency - %
20
30
40
50
60
70
80
90
0. 00
0. 25
0. 50
0. 75
0 LFM
60 LFM
90 LFM
Airflow
20
30
40
50
60
70
80
90
0
0.2
0.4
0.6
0.8
1
0 LFM
60 LFM
90 LFM
Airflow
1-A Positive Step-up
Integrated Switching Regulator
PT5040 Series
Note A:
Characteristic data has been developed from actual products tested at 25C. This data is considered typical data for the Converter.
Note B:
Thermal derating graphs are developed in free-air convection cooling, which corresponds to approximately 4060LFM of airflow.
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