Converter. TSR1-2433E Datasheet

TSR1-2433E Datasheet PDF

Part TSR1-2433E
Description DC/DC Converter
Feature Non-Isolated DC/DC Converter (POL) TSR 1E Series, 1 A • Highly cost efficient design • Pin compat.
Manufacture TRACO POWER
Download TSR1-2433E Datasheet

Non-Isolated DC/DC Converter (POL)
TSR 1E Series, 1 A
Highly cost efficient design
Pin compatible with LMxx linear
Operation temperature. range –40°C to
Efficiency up to 92%
Wide input operating range 6-36 VDC
Short circuit protection
Excellent line / load regulation
3-year product warranty
The TSR 1E is a 1 Ampere step-down switching regulator series and a drop-in
replacement for inefficient 78xx linear regulators. This series comes in a stan-
dard plastic SIP-3 case and complements our existing POL portfolio with a se-
ries focusing strongly on a cost efficient design while maintaining our quality
standards. The effective design allows full load operation up to +60°C ambient
temperature without the need of any heat sink or forced cooling. The TSR 1E
switching regulators provide other significant features over linear regulators, i.-
e. better output accuracy, lower standby current and no requirement of external
capacitors. The TSR 1E series offers a broad application range in many envi-
ronments and is especially suited for high volume projects where the series will
help to reduce production cost by delivering not only a highly cost efficient but
also reliable solution.
Order Code
TSR 1-2433E
TSR 1-2450E
Output Current
1'000 mA
Input Voltage
6 - 36 VDC (24 VDC nom.)
7 - 36 VDC (24 VDC nom.)
Output Voltage
3.3 VDC
88 %
92 %
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TSR 1E Series, 1 A
Input Specifications
Recommended Input Fuse
Input Filter
(The need of an external fuse has to be assessed
in the final application.)
Internal Capacitor
Output Specifications
Voltage Set Accuracy
- Input Variation (Vmin - Vmax)
- Load Variation (10 - 100%)
Ripple and Noise
- 20 MHz Bandwidth
Capacitive Load
Minimum Load
Temperature Coefficient
Short Circuit Protection
Output Current Limitation
±4% max.
0.75% max.
1.5% max.
80 mVp-p typ.
1'000 µF max.
Not required
±0.03 %/K max.
Continuous, Automatic recovery
350% max. of Iout max.
EMC Specifications
EMI Emissions
- Conducted Emissions
- Radiated Emissions
EN 55032 class B (with external filter)
EN 55032 class B (with external filter)
External filter proposal:
General Specifications
Relative Humidity
Temperature Ranges
Power Derating
Over Temperature
Protection Switch Off
- Operating Temperature
- Case Temperature
- Storage Temperature
- High Temperature
- Protection Mode
Cooling System
Switching Frequency
Insulation System
Housing Material
- Calculated MTBF
Pin Material
Pin Foundation Plating
Pin Surface Plating
Connection Type
Environmental Compliance - Reach
- RoHS
95% max. (non condensing)
–40°C to +85°C
+105°C max.
–50°C to +125°C
4.17 %/K above 61°C
150°C typ. (Latch off)
Natural convection (20 LFM)
520 kHz typ. (PWM)
7'000'000 h (MIL-HDBK-217F, ground benign)
Plastic (UL 94 V-0 rated)
Phosphor Bronze (C5191)
Nickel (1 µm min.)
Tin (3 µm min.), bright
THD (Through-Hole Device)
1.6 g
Supporting Documents
Overview Link (for additional Documents)
All specifications valid at nominal voltage, full load and +25°C after warm-up time unless otherwise stated.
May 25, 2020
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