Founded in 1991
7 European Locations
Customers from 100+ countries
Support from development to manufacturing
TRACOPOWER

RIP LM78xx. Build on the efficient replacement - TSR1 Series

DC/DC converterPower supplyPOLPCB

We compared two cases of electronic circuit with the linear controller LM7805 and the switched DC/DC converter TSR1-2450. Let’s have a look on how it went.

The old, well known LM78xx linear regulators are still in use in 2019, regardless of their inefficiency. They need bulky filter capacitors on input and output, heavy heatsinks and thus occupy a significant part of the PCB.

Let’s compare the two cases. One uses the old-fashioned LM7805 linear regulator and the other uses TSR1-2450 switch-mode DC/DC converter from TRACO.

Let’s assume we need to power our electronic circuit with 5V/0,5A from 12VDC power source. When using LM7805, we lose 7x0,5=3,5W of energy and we need to use a bulky heatsink to radiate this power into the surrounding air. With TSR1-2450, we lose around 6-10% of input power, which is 0,1x0,5x12=0,6W. This is significantly lower value (6x!) comparing to the linear regulator and it also means that we do not need to use any heatsink to cool the DC/DC converter.

In nowadays power consumption decreasing trend, it is preferable to eliminate useless losses, which also enables producing a device which generates less heat. These devices are usually more reliable, especially at higher surrounding temperatures. Things are getting worse with the linear regulator when the difference in Vin and Vout is increasing, but for DC/DC converter this is not a problem and input voltage could be as high as 36VDC.

The TSR-1 series step-down switching regulators are a drop-in replacement for inefficient LM78xx linear regulators. High efficiency of up to 96 % allows full load operation up to +60°C of ambient temperature without the need of any heat-sink or forced cooling. The TSR-1 switching regulators provide other significant features over linear regulators, i.e. better output accuracy (±2 %), lower standby current of 2 mA and no requirement of external capacitors. The high efficiency and low standby power consumption make these regulators an ideal solution for many battery powered applications.

10 versions with output voltages ranging from 1,2VDC to 15VDC are available. Detailed information could be found in TSR-1 datasheet. Models with negative output voltages are also available; P/N is TSRN-1.

For prices and delivery, please visit our webshop. If you need more information about TRACO POWER products, we will be glad to help at sales@soselectronic.com

Features and technical characteristics of TSR-1 Series:

  • High efficiency up to 96%, no heatsink required
  • Pin compatibility with LM78xx linear regulator, SIP3 package
  • Low standby current 2mA
  • Complete solution including inductor and capacitors (no external capacitors required)
  • Continuous short circuit protection
  • Wide input voltage range 4,6-36VDC
  • Perfect output voltage stability (0,6%)
  • Output voltage set accuracy ±2%
  • Low output ripple and noise
  • The best solution for battery powered devices

Do not miss these articles

Do you like our articles? Do not miss any of them! You do not have to worry about anything, we will arrange delivery to you.


Additional products

image type / description Ord.number kind manufacturer in stock Extended stock price/pc excl. VAT
TSR 1-2450 TRACOPOWER TSR 1-2450

DC/DC module 5,0V/1000mA SIP3

More info: tsr1_2019.pdf

Non-isolated Step-down Regulators (POL)

70570
S

TRACOPOWER

in stock 1226 pcs
Currently in stock 3941 pcs
Reserved for customers 2715 pcs
Currently available 1226 pcs
If you are interested in bigger quantity that is currently available in stock, please contact our sales assistant or click on Get Quote.
(14.06.2019: 5000 pcs)
-

1 pcs+ 5,40 €

5 pcs+ 4,96 €

10 pcs+ 4,52 €

20 pcs+ 4,07 €

ORDER:
  • ADD TO CART
  • Get Quote
  • Add to favorites
  • Add to watchdog
  • Add item to compare
TSRN1-2450 TRACOPOWER TSRN1-2450

DC/DC module 5,0V/1000mA SIP3

More info: tsrn1_2019.pdf

Non-isolated Step-down Regulators (POL)

113137
S

TRACOPOWER

in stock 76 pcs
-

1 pcs+ 9,83 €

5 pcs+ 8,95 €

10 pcs+ 8,15 €

20 pcs+ 7,35 €

ORDER:
  • ADD TO CART
  • Get Quote
  • Add to favorites
  • Add to watchdog
  • Add item to compare
TSR 1-2418 TRACOPOWER TSR 1-2418

DC/DC module 1,8V/1000mA SIP3

More info: tsr1_2019.pdf

Non-isolated Step-down Regulators (POL)

86213
S

TRACOPOWER

in stock 75 pcs
589 pcs
in 5-15 days

1 pcs+ 7,53 €

5 pcs+ 6,82 €

10 pcs+ 6,29 €

20 pcs+ 5,67 €

ORDER:
  • ADD TO CART
  • Get Quote
  • Add to favorites
  • Add to watchdog
  • Add item to compare
TSR 1-2425 TRACOPOWER TSR 1-2425

DC/DC module 2,5V/1000mA SIP3

More info: tsr1_2019.pdf

Non-isolated Step-down Regulators (POL)

71578
S

TRACOPOWER

in stock 60 pcs
124 pcs
in 5-15 days

1 pcs+ 7,53 €

5 pcs+ 6,82 €

10 pcs+ 6,29 €

20 pcs+ 5,67 €

ORDER:
  • ADD TO CART
  • Get Quote
  • Add to favorites
  • Add to watchdog
  • Add item to compare
TSR 1-2433 TRACOPOWER TSR 1-2433

DC/DC module 3,3V/1000mA SIP3

More info: tsr1_2019.pdf

Non-isolated Step-down Regulators (POL)

70569
S

TRACOPOWER

in stock 4076 pcs
Currently in stock 4566 pcs
Reserved for customers 490 pcs
Currently available 4076 pcs
If you are interested in bigger quantity that is currently available in stock, please contact our sales assistant or click on Get Quote.
26070 pcs
in 5-15 days

1 pcs+ 5,40 €

5 pcs+ 4,96 €

10 pcs+ 4,52 €

20 pcs+ 4,07 €

ORDER:
  • ADD TO CART
  • Get Quote
  • Add to favorites
  • Add to watchdog
  • Add item to compare
TSR 1-2490 TRACOPOWER TSR 1-2490

DC/DC module 9V/1000mA SIP3

More info: tsr1_2019.pdf

Non-isolated Step-down Regulators (POL)

72869
S

TRACOPOWER

in stock 31 pcs
1473 pcs
in 5-15 days

1 pcs+ 7,53 €

5 pcs+ 6,82 €

10 pcs+ 6,29 €

20 pcs+ 5,67 €

ORDER:
  • ADD TO CART
  • Get Quote
  • Add to favorites
  • Add to watchdog
  • Add item to compare
TSR 1-24120 TRACOPOWER TSR 1-24120

DC/DC module 12,0V/1000mA SIP3

More info: tsr1_2019.pdf

Non-isolated Step-down Regulators (POL)

70571
S

TRACOPOWER

in stock 1258 pcs
Currently in stock 1418 pcs
Reserved for customers 160 pcs
Currently available 1258 pcs
If you are interested in bigger quantity that is currently available in stock, please contact our sales assistant or click on Get Quote.
33744 pcs
in 5-15 days

1 pcs+ 5,40 €

5 pcs+ 4,96 €

10 pcs+ 4,52 €

20 pcs+ 4,07 €

ORDER:
  • ADD TO CART
  • Get Quote
  • Add to favorites
  • Add to watchdog
  • Add item to compare
TSR 1-24150 TRACOPOWER TSR 1-24150

DC/DC module 15,0V/1000mA SIP3

More info: tsr1_2019.pdf

Non-isolated Step-down Regulators (POL)

70789
S

TRACOPOWER

in stock 706 pcs
Currently in stock 738 pcs
Reserved for customers 32 pcs
Currently available 706 pcs
If you are interested in bigger quantity that is currently available in stock, please contact our sales assistant or click on Get Quote.
5294 pcs
in 5-15 days

1 pcs+ 7,53 €

5 pcs+ 6,82 €

10 pcs+ 6,29 €

20 pcs+ 5,67 €

ORDER:
  • ADD TO CART
  • Get Quote
  • Add to favorites
  • Add to watchdog
  • Add item to compare

TSR 1-2450 TRACOPOWER  
TSR 1-2450

DC/DC module 5,0V/1000mA SIP3

Non-isolated Step-down Regulators (POL)

Ord. No.: 70570
Manufacturer: TRACOPOWER
in stock 1226 pcs
(14.06.2019: 5000 pcs)
1 pcs+
5 pcs+
10 pcs+
20 pcs+
5,40 €
4,96 €
4,52 €
4,07 €
ORDER:
  • ADD TO CART
  • Get Quote
  • Add to favorites
  • Add to watchdog
  • Add item to compare

TSRN1-2450 TRACOPOWER  
TSRN1-2450

DC/DC module 5,0V/1000mA SIP3

Non-isolated Step-down Regulators (POL)

Ord. No.: 113137
Manufacturer: TRACOPOWER
in stock 76 pcs
1 pcs+
5 pcs+
10 pcs+
20 pcs+
9,83 €
8,95 €
8,15 €
7,35 €
ORDER:
  • ADD TO CART
  • Get Quote
  • Add to favorites
  • Add to watchdog
  • Add item to compare

TSR 1-2418 TRACOPOWER  
TSR 1-2418

DC/DC module 1,8V/1000mA SIP3

Non-isolated Step-down Regulators (POL)

Ord. No.: 86213
Manufacturer: TRACOPOWER
in stock 75 pcs
589 pcs in 5-15 days
1 pcs+
5 pcs+
10 pcs+
20 pcs+
7,53 €
6,82 €
6,29 €
5,67 €
ORDER:
  • ADD TO CART
  • Get Quote
  • Add to favorites
  • Add to watchdog
  • Add item to compare

TSR 1-2425 TRACOPOWER  
TSR 1-2425

DC/DC module 2,5V/1000mA SIP3

Non-isolated Step-down Regulators (POL)

Ord. No.: 71578
Manufacturer: TRACOPOWER
in stock 60 pcs
124 pcs in 5-15 days
1 pcs+
5 pcs+
10 pcs+
20 pcs+
7,53 €
6,82 €
6,29 €
5,67 €
ORDER:
  • ADD TO CART
  • Get Quote
  • Add to favorites
  • Add to watchdog
  • Add item to compare

TSR 1-2433 TRACOPOWER  
TSR 1-2433

DC/DC module 3,3V/1000mA SIP3

Non-isolated Step-down Regulators (POL)

Ord. No.: 70569
Manufacturer: TRACOPOWER
in stock 4076 pcs
26070 pcs in 5-15 days
1 pcs+
5 pcs+
10 pcs+
20 pcs+
5,40 €
4,96 €
4,52 €
4,07 €
ORDER:
  • ADD TO CART
  • Get Quote
  • Add to favorites
  • Add to watchdog
  • Add item to compare

TSR 1-2490 TRACOPOWER  
TSR 1-2490

DC/DC module 9V/1000mA SIP3

Non-isolated Step-down Regulators (POL)

Ord. No.: 72869
Manufacturer: TRACOPOWER
in stock 31 pcs
1473 pcs in 5-15 days
1 pcs+
5 pcs+
10 pcs+
20 pcs+
7,53 €
6,82 €
6,29 €
5,67 €
ORDER:
  • ADD TO CART
  • Get Quote
  • Add to favorites
  • Add to watchdog
  • Add item to compare

TSR 1-24120 TRACOPOWER  
TSR 1-24120

DC/DC module 12,0V/1000mA SIP3

Non-isolated Step-down Regulators (POL)

Ord. No.: 70571
Manufacturer: TRACOPOWER
in stock 1258 pcs
33744 pcs in 5-15 days
1 pcs+
5 pcs+
10 pcs+
20 pcs+
5,40 €
4,96 €
4,52 €
4,07 €
ORDER:
  • ADD TO CART
  • Get Quote
  • Add to favorites
  • Add to watchdog
  • Add item to compare

TSR 1-24150 TRACOPOWER  
TSR 1-24150

DC/DC module 15,0V/1000mA SIP3

Non-isolated Step-down Regulators (POL)

Ord. No.: 70789
Manufacturer: TRACOPOWER
in stock 706 pcs
5294 pcs in 5-15 days
1 pcs+
5 pcs+
10 pcs+
20 pcs+
7,53 €
6,82 €
6,29 €
5,67 €
ORDER:
  • ADD TO CART
  • Get Quote
  • Add to favorites
  • Add to watchdog
  • Add item to compare
Cookies help us provide services. By using our services you consent to the use of cookies.
OK More info