TSRN 1-2433SM Datasheet TSRN 1-2433SM, TSRN 1-0525SM, TSRN 1-24150SM | P1-P3

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DC/DC Converters

TSRN-1SM Series, 1 A Switching Regulator

Features

◆

Compact SMD package

◆ Suitable for positive & negative output circuit

◆ Adjustable output voltage

◆ Wide input up to 42 VDC

◆ Remote On/Off input

◆ Built in ﬁlter capacitors

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

◆ No heat-sink required

◆ Excellent line / load regulation

◆ Low standby current

◆ Moisture sensitivity level (MSL) 1

◆ 3-year product warranty

The new TSRN-1SM series are step-down non–isolated switching regulators in com-

pact SMD package. They are an ideal solution to replace inefﬁcient linear regula-

tors. The high efﬁciency up to 95 % allows full load operation up to +55°C (+85°C

with derating) ambient temperature without the need of forced aircooling.

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

regulators, i.e. better output accuracy (±2 %), lower standby current of ~4 mA and

no requirement of external capacitors. They are suitable for positive or negative

output circuits and offer a trim input for output voltage adjustment. The high ef-

ﬁciency, low standby power consumption and remote On/Off function make these

regulators an ideal solution for energy sensitive applications.

Order code

Input voltage Output voltage Output current Efﬁciency typ.

range

/ (nominal) nominal trim range

max.

@ Vin min. @

Vin 36VDC

Positive output circuit

TSRN 1-0525SM

3.0 – 5.5 VDC (5 VDC) 2.5 VDC 1.2 – 3.6 VDC 95.5 % 95 %

(at 5.5VDC)

TSRN 1-2433SM

4.6 – 42 VDC (12 VDC) 3.3 VDC 1.5 – 5.5 VDC 87. 5 % 80 %

TSRN 1-2450SM

6.5 – 42 VDC (12 VDC) 5.0 VDC 2.5 – 8.0 VDC 91.5 % 83.5 %

TSRN 1-2490SM

10.5 – 42 VDC (12 VDC) 9.0 V DC 4.5 – 12.6 VDC

1.0 A

94.5 % 89 %

TSRN 1-24120SM

13.5 – 42 VDC (24 VDC) 12 VDC 4.5 – 13.5 VDC 95.0 % 91 %

TSRN 1-24150SM

16.5 – 42 VDC (24 VDC) 15 VDC 4.5 – 15.5 VDC 95.5 % 92.5 %

Negative output circuit

TSRN 1-2433SM

4.6 – 32 VDC (12 VDC) -3.3 VDC -1.5 – -5.5 VDC 0.6 A 74 % 77.5 %

TSRN 1-2450SM

4.6 – 31 VDC (12 VDC) -5.0 VDC -2.5 – -8.0 VDC 0.4 A 80 % 78.5 %

TSRN 1-2490SM

7 – 27 VDC (12 VDC) -9.0 V DC -4.5 – -12.6 VDC 0.3 A 85 % 82 %

TSRN 1-24120SM

7 – 24 VDC (12 VDC) -12 VDC -4.5 – -13.5 VDC 0.3 A 84.5 % 86 %

TSRN 1-24150SM

7 – 21 VDC (12 VDC) -15 VDC -4.5 – -15.5 VDC 0.2 A 85.5 % 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.

3) For positive output circuit, input voltage must be higher than output voltage set: >0.5 V for TSRN1-0525SM and >1.5 V for other models.

For negative output circuit, input voltage plus absolute output voltage set must not exceed 36 VDC (Vin + |Vout| < 36 VDC)

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Input Specifications

No load input current – positive output circuit TSRN 1-0525SM: 6 mA typ.

TSRN 1-2433SM: 1.5 mA typ.

TSRN 1-2450SM: 3 mA typ.

other models: 4 mA typ.

– negative output circuit -3.3 / -5.5 Vout models: 3 mA typ.

-9.0 / -12 Vout models: 7 mA typ.

TSRN 1-24150SM: 10 mA typ.

Reflected ripple current 100 mAp-p typ.

Input filter internal capacitors

Output Specifications

Voltage set accuracy ±2 % (at full load)

Regulation – Input variation 0.2 %

– Load variation 0 – 100 % 0.6 %

– Load variation 10 – 90 % 0.3 %

Temperature coefficient ±0.015 %/K max.

Startup voltage overshoot 1.0 % max.

Minimum load not required

Ripple and noise – |Vout| = 1.2V – 8V 50 mVp-p max.

(20 MHz Bandwidth) – |Vout| = 8.1V – 15.5V 75 mVp-p max.

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

250 µs typ. response time

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

Short circuit protection continuous, automatic recovery

Capacitive load 470 µF max.

General Specifications

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

– case temperature +100°C. max.

– Storage –55°C to +125°C

Derating – positive output circuit 1.7 %/K above +55°C

– negative output circiut 2.5 %/K above +65°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) 5 to 95 % rel. H max.

Reliability, calculated MTBF (MIL-HDBK-217F, at +25°C, ground benign) >14‘000’000 h

Isolation voltage none

Switching frequency TSRN 1-0525SM: 410 kHz typ.

TSRN 1-2433SM: 300 kHz typ.

other models: 580 kHz typ.

Safety standards (designed to meet) UL/cUL 60950-1, IEC/EN 60950-1

Remote On/Off – Control pin referance for positive output circuit GND

– Control pin referance for negative output circuit -Vout

– On: 2 – 5 VDC or open circuit.

– Off: 0 – 0.8 VDC or short circuit

– Off idle current: 1.2 mA typ.

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

– RoHS RoHS directive 2011/65/EU

DC/DC Converters

TSRN-1SM Series 1 A

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

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Physical Specifications

Casing material non-conductive plastic (UL94V-0 rated)

Potting material epoxy, (UL 94V-0 rated)

Weight 1.7 g (0.06 oz)

Lead-free reflow solder process as per J-STD-020D.01

– max. peak body temperature 245°C

Moisture sensitivity level (MSL) level 1 as per IPC J-STD-033B.1

Washing baking after washing: 100°C for 30 min.

DC/DC Converters

TSRN-1SM Series 1 A

Applications notes

Positive output operation:

Negative output operation (not for model TSRN 1-0525SM):

C1 = 10 µF / 50 V, 1210 X5R MLCC

C2 = 10 µF / 25 V, 1206 X5R MLCC

Output voltage adjustment:

7,9

TSRN 1SM

GND

out

GND

Remote On/O

7,9

TSRN 1SM

GND

-Vout

GND

Remote On/O

7, 9

Trim Up

Trim Down

Model RU [KOhm] RD [KOhm]

TSRN 1-0525SM

40.75 / (Vo – 2.5)

(Vo

50.75 – 40.75) / (2.5 – Vo)

TSRN 1-2433SM

26.4 / (Vo – 3.3)

(Vo

33 – 26.4) / (3.3 – Vo)

TSRN 1-2450SM

160 / (Vo – 5)

(Vo

200 – 160) / (5 – Vo)

TSRN 1-2490SM

80 / (Vo – 9)

(Vo

100 – 80) / (9 – Vo)

TSRN 1-24120SM

240 / (Vo – 12)

(Vo

300 – 240) / (12 – Vo)

TSRN 1-24150SM

240 / (Vo – 15)

(Vo

300 – 240) / (15 – Vo)

Vo = output voltage to be adjusted.

Calculate with absolute values for negative output circuit

Open Trim = nominal output voltage

(Open Remote On/Off input = On)

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

voltage is higher than 36 V)

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TSRN 1-2433SM

Mfr. #:

Buy TSRN 1-2433SM

Manufacturer:

TRACO Power

Description:

Non-Isolated DC/DC Converters Product Type: POL; Package Style: SMD; Output Power (W): N/A; Input Voltage: 4.6-42 VDC; Output 1 (Vdc): 3.3; Output 2 (Vdc): N/A; Output 3 (Vdc): N/A

Lifecycle:

New from this manufacturer.

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TSRN 1-2433SM

TSRN 1-2433SM

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