TSRN 1-2433 Datasheet TSRN 1-24150A, TSRN 1-2465A, TSRN 1-2418A | P1-P3

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DC/DC Converters

TSRN-1 Series, 1 A Switching Regulator

Features

◆

SIP-package ﬁts existing TO-220 footprint

◆ Suitable for positive & negative output circuit

◆ Pin compatible with LMxx linear regulators

◆ Built in ﬁlter capacitors

◆ Operation temp. range –40°C to +85°C

◆ No heat-sink required

◆ Over-temperature protection

◆ Short circuit protection

◆ Wide input range up to 42 VDC

◆ Excellent line / load regulation

◆ Low standby current

◆ 3-year product warranty

The new TSRN-1 series step-down switching regulators are drop-in replacement

for inefﬁcient 78xx linear regulators. A high efﬁciency up to 95 % allows full load

operation up to +70°C (+85°C with derating) ambient temperature without the need

of any heat-sink or forced air cooling.

The TSRN-1 switching regulators provide other signiﬁcant features over linear regu-

lators, i.e. better output accuracy (±2 %), lower standby current of ~2 mA and no

requirement of external capacitors. They are suitable for positive or negative output

circuits. The high efﬁciency and low standby power consumption make these regula-

tors an ideal solution for energy sensitive applications.

Order code

Input voltage Output voltage Output current Efﬁciency typ.

straight pins angular pins range

/ (nominal) max.

@ Vin min. @

Vin max.

Positive output circuit

TSRN 1-2415 TSRN 1-2415A

4.6 – 42 VDC (12 VDC) 1.5 VDC 77 % 66 %

TSRN 1-2418 TSRN 1-2418A

4.6 – 42 VDC (12 VDC) 1.8 VDC 80 % 70 %

TSRN 1-2425 TSRN 1-2425A 4.6 – 42 VDC (12 VDC)

2.5 VDC 83 % 75 %

TSRN 1-2433 TSRN 1-2433A 4.6 – 42 VDC (12 VDC)

3.3 VDC 87 % 79 %

TSRN 1-2450 TSRN 1-2450A 6.5 – 42 VDC (12 VDC)

5.0 VDC 1.0 A 91 % 83 %

TSRN 1-2465 TSRN 1-2465A 8.0 – 42 VDC (12 VDC)

6.5 VDC 93 % 86 %

TSRN 1-2490 TSRN 1-2490A 10.5 – 42 VDC (12 VDC)

9.0 V D C 94 % 88 %

TSRN 1-24120 TSRN 1-24120A 13.5 – 42 VDC (24 VDC)

12 VDC 95 % 91 %

TSRN 1-24150 TSRN 1-24150A 16.5 – 42 VDC (24 VDC)

15 VDC 95 % 92 %

Negative output circuit

TSRN 1-2415 TSRN 1-2415A 4.6 – 32 VDC (12 VDC)

–1.5 VDC 0.6 A 69 % 64 %

TSRN 1-2418 TSRN 1-2418A

4.6 – 32 VDC (12 VDC) –1.8 VDC 0.6 A 72 % 67 %

TSRN 1-2425 TSRN 1-2425A

4.6 – 32 VDC (12 VDC) –2.5 VDC 0.6 A 72 % 74 %

TSRN 1-2433 TSRN 1-2433A

4.6 – 32 VDC (12 VDC) –3.3 VDC 0.6 A 74 % 77 %

TSRN 1-2450 TSRN 1-2450A

6.5 – 31 VDC (12 VDC) –5.0 VDC 0.4 A 79 % 78 %

TSRN 1-2465 TSRN 1-2465A

7.0 – 29 VDC (12 VDC) –6.5 VDC 0.3 A 84 % 80 %

TSRN 1-2490 TSRN 1-2490A

7.0 – 27 VDC (12 VDC) –9.0 VD C 0.3 A 85 % 82 %

TSRN 1-24120 TSRN 1-24120A

7.0 – 24 VDC (12 VDC) –12 VDC 0.3 A 85 % 85 %

TSRN 1-24150 TSRN 1-24150A 7.0 – 21 VDC (12 VDC)

–15 VDC 0.2 A 85 % 84 %

Models

1) Same order code for positive and negative output operation, see page 3 for circuits.

2) For input voltage higher 36 VDC an input capacitor 22 µF/ 50 V is required

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Input Specifications

No load input current <= 3..3 VDC output models: 1 mA typ.

>= 5.0 VDC Output models: 3 mA typ

Reflected ripple current 100 mA typ.

Input filter internal capacitors

Output Specifications

Voltage set accuracy ±2 % (at full load)

Regulation – Input variation 0.2 %

– Load variation (10 – 100 %) 1.5 VDC models: 0.6 % straight pin vers., 1.2 % angular pin vers.

1.8 VDC models: 0.4 % straight pin vers., 1.2 % angular pin vers.

other models: 0.4 % (all versions)

Startup voltage overshoot 1.0 % max.

Minimum load not required

Ripple and noise (20 MHz Bandwidth) 1.5 – 6.5 VDC models: 50 mVpk-pk max.

9 – 15 VDC models: 75 mVpk-pk max.

Temperature coefficient ±0.015 % / °C max.

Dynamic load response (change of 50% to 100% load) 150 mV max. peak variation

250 µS max. response time

Startup time – start up time at nominal Vin, constant resistive load 5 mS typ.

– rise time for 10 % to 90 % Vout 3.5 mS typ.

Short circuit protection continuous, automatic recovery

Current limitation (for positive output circuit) at 2.0 A typ.

Capacitive load 470 µF max.

General Specifications

Temperature ranges – Operating –40°C to +85°C

– Max. casing temperature +100°C

– Storage –55°C to +125°C

Derating 2.7 %/K above +70°C

Thermal shock, mechanical shock & vibration EN 61373, MIL-STD-810F

– Test conditions www.tracopower.com/products/mil810.pdf

Overtemperature protection at +170°C (on internal IC)

Humidity (non condensing) 90 % rel H max.

Reliability, calculated MTBF (MIL-HDBK-217F, at +25°C, ground benign) >6’000’000 h

Isolation voltage none

Switching frequency 1.5 – 3.3 VDC models: 300 kHz typ.

5.0 – 15 VDC models: 580 kHz typ.

Physical Specifications

Casing material non-conductive plastic

Potting material silicon (flammability to UL 94V-0 rated)

Weight 1.9 g (0.07 oz)

Soldering profile max. +265°C / 10 sec. (wave soldering)

Environmental compliance – Reach www.tracopower.com/info/reach-declaration.pdf

– RoHS RoHS directive 2011/65/EU

DC/DC Converters

TSRN-1 Series 1 A

All speciﬁcations valid at nominal input voltage, full load and +25°C after warm-up time unless otherwise stated.

Page 2 of 3

Speciﬁcations can be changed without notice! Make sure you are using the latest documentation, downloadable at www.tracopower.com

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Outline Dimensions

DC/DC Converters

TSRN-1 Series 1 A

Rev. July 13, 2018

Pin pos. neg.

+Vin +Vin

GND -Vout

+Vout GND

Pin-Out

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Dimensions in [mm], () = Inch

Pin pitch tolerances: ±0.25 (±0.01)

Pin profile tolerance: ±0.1 (±0.004)

Other tolerances: ±0.5 (±0.02)

Applications notes

Positive output operation:

Negative output operation:

C1 = 10 µF / 50 V, 1210 X5R MLCC

C2 = 10 µF / 25 V, 1206 X5R MLCC

TSRN 1

GND

-Vout

GND

Input

TSRN 1

Output

GND

out

GND

0.5

(0.02)

10.2

(0.40)

4.1

(0.16)

2.54

0.5

2.54

(0.1)(0.1)

(0.02)

11.7 (0.46)

2.4

(0.095)

7.5

(0.30)

Bottom view

123

0.3

(0.01)

3.3

(0.13)

0.5

(0.02)

10.2

(0.40)

2.54

0.5

2.54

(0.1)(0.1)

(0.02)

11.7 (0.46)

2.3

(0.09)

7.5

(0.30)

Bottom view

123

3.3

(0.13)

4.1

(0.16)

0.3

(0.01)

1.5

(0.06)

Straight pin version Angular pin version (sufﬁx A)

C1 = 22 µF/ 50 V (required only if input

voltage is higher than 36 V)

Supporting documents: www.tracopower.com/overview/tsrn1

P1-P3

TSRN 1-2433

Mfr. #:

Buy TSRN 1-2433

Manufacturer:

TRACO Power

Description:

Non-Isolated DC/DC Converters

Lifecycle:

New from this manufacturer.

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TSRN 1-2433

TSRN 1-2433

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