TRACOPOWER Switching Regulator, Through Hole, ±3.3V dc Output Voltage, 4.6 → 32 V dc, 4.6 → 42 V dc Input

TSRN-1 Series 1A step-down switching regulators with a wide input voltage range of up to 42 Vdc and a high efficiency of up to 95% which allows full load operation without the need for a heatsink or forced air cooling. These TSRN-1 Series 1A step-down switching regulators are suitable for positive and negative output circuits (please refer to table for additional data). Excellent line and load regulation and a low standby current makes these TSRN-1 switching regulators ideal for use in energy sensitive applications.

Input voltage range up to 42 VDC
Built in filter capacitors
No heat-sink required
Over-temperature and short circuit protection
Low standby current: 1 mA for <= 3.3 Vdc output models, 3 mA for >= 5.0 Vdc ouput models
SIP package fits existing TO-220 footprint
Pin compatible with LMxx linear regulators

Part numbers: TSRN 1-xxxx have straight pins
Part numbers: TSRN 1-xxxxA have angular pins
MTBF: MIL-HDBK-217 @ +25°C
Derating: 2.7 %/K above +70°C
For input voltages higher then 36 Vdc an input capacitor 22 μF/ 50 V is required

This switching regulator by TRACOPOWER is a high-quality non-isolated DC/DC converter designed to replace inefficient linear regulators. With an efficiency of 77%, this regulator is suitable for energy-sensitive applications, providing excellent line/load regulation. The TSRN 1 series offers a wide input range up to 42 V DC and features built-in filter capacitors for enhanced performance.

• SIP-package that fits existing TO-220 footprint
• Pin compatible with LMxx linear regulators
• No heat-sink required
• Over-temperature and short circuit protection
• Wide input voltage range for flexibility
• Excellent line/load regulation for consistent output
• Built-in filter capacitors for improved performance
• High efficiency of up to 95% for energy savings

• Ideal for positive and negative output circuits
• Suitable for various energy-sensitive applications requiring a stable output voltage
• Can be used for replacing inefficient linear regulators in electronics and automation systems

Yes, the TRACOPOWER switching regulator offers excellent line/load regulation for a stable output.

Yes, the SIP-package design of this regulator is compatible with the TO-220 footprint.

No, this regulator does not require a heat-sink or forced air cooling for operation.

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