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 is designed to deliver an efficient power supply solution for various industrial applications. It provides a regulated output of ±6.5 V DC, converting input voltages within the range of 8 to 29 V DC or 8 to 42 V DC, ensuring versatility for different requirements. With a high efficiency of 93%, the device helps reduce energy loss and improve system performance.

• Supports a maximum output current of 1 A, facilitating adequate power delivery
• Line regulation of ±0.2% ensures stable output
• Compact SIP package allows for easy integration into designs
• Low ripple and noise specifications provide clean power output
• Operating temperature range of -40 to +85°C for adaptability in various environments
• Long mean time between failures (MTBF) of 20 million hours enhances durability

• Suitable for industrial automation control systems
• Ideal for electronics testing equipment needing stable DC output
• Used for powering sensors and actuators in mechanical systems
• Find application in telecommunications equipment requiring regulated operation
• Employed in embedded systems that demand compact power solutions

Installation is simple

The regulator accepts input voltages between 8 V DC and 42 V DC, offering flexibility for various power sources.

It operates efficiently within the temperature range of -40 to +85°C, designed for harsh conditions.

Yes, it is suitable for high-frequency use owing to its low ripple and noise characteristics.

Evaluate your required output current, input voltage range, and temperature conditions to confirm compatibility with your application.