ETC PT5042A

PT5040 Series
1-A Positive Step-up
Integrated Switching Regulator
SLTS026B
(Revised 12/19/2001)
Standard Application
+Vin
1
PT5040
2
C1
+Vout
3
C2
C3
100µF
COM
Features
Description
• Wide Input Voltage Range
• 85% Efficiency
• Internal Over-Temperature
Protection
• Laser-trimmed Output Voltage
• Soft Start
• 5-Pin Mount Option
(Suffixes L & M)
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.
Pin-Out Information
Ordering Information
PT Series Suffix (PT1234x )
Pin
PT5041o = +12 Volts
PT5042o = +15 Volts
PT5044o = +8 Volts
PT5045o = +9 Volts
PT5046o = +10 Volts
PT5047o = +18 Volts
PT5048o = +12.6 Volts
PT5049o = +20 Volts
Case/Pin
Configuration
Function
1
Vin
2
GND
3
Vout
+
COM
Package
Code *
N
A
C
M
L
(EAD)
(EAA)
(EAC)
(EAM)
(EAL)
Vertical
Horizontal
SMD
Horizontal, 2-pin Tab
SMD, 2-Pin Tab
* Previously known as package styles 100/110.
(Reference the applicable package code drawing
for the dimensions and PC board layout)
C 1 = Optional ceramic (1-5µF)
C 2 = Optional ceramic (1-5µF)
C 3 = Required Electrolytic (100µF)
Specifications
Order
Suffix
NOTE: Boost Topology ISRs are not Short-Circuit Protected.
(Unless otherwise stated, T a =25°C, Vin =5V, I o =Iomax, C3 =100µF)
PT5040 SERIES
Characteristics
Symbol
Conditions
Output Current
Io
Over Vin range
Min
PT5049
PT5047
PT5041/48
PT5042
PT5044
PT5045/46
Typ
Max
Units
0.1 (1)
0.1 (1)
0.1 (1)
0.1 (1)
0.1 (1)
0.1 (1)
—
—
—
—
—
—
0.5
0.6
1.0
0.75
1.5
1.2
A
4.75
4.75
—
—
(Vo–1)
14
V
Input Voltage Range
Vin
Over Io range
Output Voltage Tolerance
∆Vo
Over Vin Range
Ta= -20°C to SOA derating limit (3)
—
±1.5
±3.0
%Vo
Line Regulation
Regline
Over Vin range
—
±0.5
±1.0
%Vo
Load Regulation
Regload
Iomin ≤ Io ≤ Iomax
—
±0.5
±1.0
%Vo
Efficiency
η
Io=0.5A
—
85
—
%
Vo Ripple (pk-pk)
Vr
20MHz bandwidth
—
±2
±5
%Vo
Transient Response
ttr
Vos
25% load change
Vo over/undershoot
—
—
500
3.0
—
5.0
µSec
%Vo
Current Limit
Inrush Current
Ilim
Iir
tir
On start up
—
—
—
150 (2)
5.5 (3)
1
—
—
—
%Iomax
A
mSec
Switching Frequency
ƒs
Over Vin and Io ranges
500
650
650
800
800
950
Operating Temperature Range
Ta
—
-20
—
+85
Thermal Resistance
θja
Free Air Convection
(40-60LFM)
—
40
—
°C/W
Storage Temperature
Ts
-40
—
+125
°C
PT5047/5049
Vo<15V
Vo>15V
kHz
(4)
°C
Mechanical Shock
Per Mil-STD-883D, Method 2002.3
1 msec, Half Sine, mounted to a fixture
500
—
G’s
Mechanical Vibration
Per Mil-STD-883D, 20-2000 Hz
Suffixes N, A, & C
Suffixes L & M
—
—
5
20 (5)
—
—
G’s
Weight
Suffixes N, A, & C
Suffixes L & M
—
—
4.5
6.5
—
—
grams
Notes: (1)
(2)
(3)
(4)
(5)
—
The ISR will operate at no load with reduced specifications.
Boost topology ISRs are not short circuit protected.
The inrush current stated is above the normal input current for the associated output load.
See Safe Operating Area curves or consult the factory for the appropriate derating
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.
For technical support and more information, see inside back cover or visit www.ti.com
Typical Characteristics
PT5040 Series
1-A Positive Step-up
Integrated Switching Regulator
PT5041, +12.0 VDC
PT5042, +15.0 VDC
(See Note A)
Efficiency vs Output Current
Efficiency vs Output Current
100
10 0
90
Efficiency - %
Efficiency - %
90
V in
80
11.0V
8.0V
70
6.0V
60
80
V in
14.0V
12.0V
10.0V
8.0V
6.0V
5.0V
70
60
5.0V
50
50
40
40
0
0 .2
0 .4
0 .6
0 .8
0
1
0.1 5
Ripple Voltage vs Output Current
0 .6
0.7 5
Ripple Voltage vs Output Current
20 0
Ripple-(mV)
Ripple-(mV)
0.4 5
250
25 0
V in
5.0V
15 0
6.0V
8.0V
10 0
200
V in
5.0V
6.0V
8.0V
10.0V
12.0V
14.0V
150
100
11.0V
50
50
0
0
0
0 .2
0 .4
0 .6
0 .8
1
0
0.15
Iout-(Amps)
0 .3
0.45
0 .6
0.75
Iout-(Amps)
Power Dissipation vs Output Current
Power Dissipation vs Output Current
2.5
3
2.5
2
PD-(Watts)
PD-(Watts)
0 .3
Iout-(Amps)
Iout-(Amps)
Vin
1.5
5.0V
6.0V
1
Vin
2
5.0V
6.0V
8.0V
10.0V
12.0V
14.0V
1.5
8.0V
1
11.0V
0.5
0.5
0
0
0
0.2
0.4
0.6
0.8
1
0
Iout-(Amps)
0.15
0.3
0.45
0.6
0.75
Iout-(Amps)
Safe Operating Area (VIN=5V) (See Note B)
Safe Operating Area (VIN=5V) (See Note B)
90
90
80
70
60
Airflow
50
0 LFM
60 LFM
40
90 LFM
30
Ambient Temperature - (C°)
Ambient Temperature - (C°)
(See Note A)
80
70
60
Airflow
50
0 LFM
60 LFM
40
90 LFM
30
20
0
0.2
0.4
0.6
0.8
Maximum Output Current - (Amps)
1
20
0.00
0.25
0.50
0.75
Maximum Output Current - (Amps)
Note A: Characteristic data has been developed from actual products tested at 25°C. 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 40–60LFM of airflow.
For technical support and more information, see inside back cover or visit www.ti.com
IMPORTANT NOTICE
Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications,
enhancements, improvements, and other changes to its products and services at any time and to discontinue
any product or service without notice. Customers should obtain the latest relevant information before placing
orders and should verify that such information is current and complete. All products are sold subject to TI’s terms
and conditions of sale supplied at the time of order acknowledgment.
TI warrants performance of its hardware products to the specifications applicable at the time of sale in
accordance with TI’s standard warranty. Testing and other quality control techniques are used to the extent TI
deems necessary to support this warranty. Except where mandated by government requirements, testing of all
parameters of each product is not necessarily performed.
TI assumes no liability for applications assistance or customer product design. Customers are responsible for
their products and applications using TI components. To minimize the risks associated with customer products
and applications, customers should provide adequate design and operating safeguards.
TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right,
copyright, mask work right, or other TI intellectual property right relating to any combination, machine, or process
in which TI products or services are used. Information published by TI regarding third–party products or services
does not constitute a license from TI to use such products or services or a warranty or endorsement thereof.
Use of such information may require a license from a third party under the patents or other intellectual property
of the third party, or a license from TI under the patents or other intellectual property of TI.
Reproduction of information in TI data books or data sheets is permissible only if reproduction is without
alteration and is accompanied by all associated warranties, conditions, limitations, and notices. Reproduction
of this information with alteration is an unfair and deceptive business practice. TI is not responsible or liable for
such altered documentation.
Resale of TI products or services with statements different from or beyond the parameters stated by TI for that
product or service voids all express and any implied warranties for the associated TI product or service and
is an unfair and deceptive business practice. TI is not responsible or liable for any such statements.
Mailing Address:
Texas Instruments
Post Office Box 655303
Dallas, Texas 75265
Copyright  2001, Texas Instruments Incorporated