Datasheet

ManualsBrandsTRACOPOWER ManualsPSU ComponentsDC/DC converter (print) 5 Vdc 3.3 Vdc 3 A No. of outputs: 1 x

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DC/DC Converters

TSR-3 Series, 3 A

Features

◆

High performance 3 Amp. switching regulator

◆ Suitable for positive & negative output circuit

◆ High efﬁciency up to 95 %

◆ Adjustable output voltages

◆ Wide input voltage ranges 2.5–5.5,

4.5–14 and 10–30 VDC

◆ Over-temperature protection

◆ Short circuit protection

◆ Remote On/Off input

◆ Low output ripple & noise

◆ 3-year product warranty

The TSR 3 models are non isolated step down switching regulators. Since production

May 2013 they can also be operated with negative output voltage.

They come in a very compact open frame package of 15.5 x 9.4 x 6.2mm. The high

efﬁciency of up to 95% admits a full load operation up to 50°C and up to 85°C

with 50% current reduction. A low standby current, a very wider input range and

no requirement for heatsink give these switching regulators a signiﬁcant advantage

over linear regulators.

Togther with a remote On/Off input and protection against short circuit and over

temperature the TSR 3 Series models are ideal point of load regulators for high reli-

able and energy critical applications.

Order code * Input voltage range Output voltage

adjustable

Output current max. Efﬁciency typ.

Positive output circuit

TSR 3-0533 2.5 – 5,5 VDC

0.6 – 3.3 VDC 95 % at 2.5 VDC

TSR 3-1250 4.5 – 14 VDC

0.59 – 6.0 VDC 93 % at 3.3 VDC

TSR 3-2450 10 – 30 VDC

3.0 – 6.0 VDC

3 A

91 % at 5.0 VDC

TSR 3-24150 10 – 30 VDC

5.0 – 15 VDC 95 % at 12 VDC

Negative output circuit

TSR 3-1250 4.7 – 13 VDC

-0.59 – -6.0 VDC

1.5 A at |Vout| >3.3 VDC

2.2 A at |Vout| <3.3 VDC

90 % at -3.3 VDC

TSR 3-2450 10 – 27 VDC

-3.0 – -6.0 VDC 2.2 A 90 % at -5.0 VDC

TSR 3-24150 10 – 25 VDC

-5.0 – -15 VDC 1.2 A 91 % at -12 VDC

Models

* Sufﬁx A for models with angular pins (see dimensions), availability on demand, no stocking item.

1) input voltage must be at least 0.5 V higher than output voltage

2) input voltage must be at least 2.0 V higher than output voltage, max. 9 VDC if output is <0.9 VDC

3) input voltage must be at least 3.0 V higher than output voltage

4) max. input voltage = 14-|Vout|

5) max. input voltage = 30-|Vout|

6) open trim input = min. output voltage

Summary of content (3 pages)

PAGE 1
DC/DC Converters TSR-3 Series, 3 A Features ◆ High performance 3 Amp. switching regulator ◆ Suitable for positive & negative output circuit ◆ High efficiency up to 95 % ◆ Adjustable output voltages ◆ Wide input voltage ranges 2.5–5.5, 4.5–14 and 10–30 VDC ◆ ◆ ◆ ◆ ◆ Over-temperature protection Short circuit protection Remote On/Off input Low output ripple & noise The TSR 3 models are non isolated step down switching regulators.
PAGE 2
DC/DC Converters TSR-3 Series 3A Input Specifications Maximum input current (@ Vin min. and 3 A output current) No load input current TSR 3-0533: TSR 3-1250: TSR 3-2450: TSR 3-24150: 3.0 A 2.6 A 2.2 A 3.0 A – positive output circuit 25 mA typ. – negative output circuit 35 mA typ., 60 mA typ. for TSR 3-24150 Reflected ripple current – positive output circuit TSR 3-0533 and TSR 3-1250: 30 mA typ. TSR 3-2450 & TSR 3-24150: 30 mA typ. with ext. filter, see fig.
PAGE 3
DC/DC Converters TSR-3 Series 3A Applications notes Input filter to reduce reflected ripple current fig. 1 fig. 2 Positive output circuit L1 + 2 C1 Input 4 GND + TSR 3 C2 Output 3 Negative output circuit Input + 2 GND GND GND 4 TSR 3 C1 C2 Output 3 C1 = 220 µF, ESR <0.1 Ohm C2 = 150 µF L1 = 1 µH C1, C2 =10 µF, MLCC Output voltage adjustment (for negative and positive circuit) 4 TSR 3 5 Load 3 Rtrim Model R trim [KOhm] 1/16 W TSR 3-0533 1.2/(|Vout| -0.6)-0.