This document introduces the TSR-1 series of DC/DC converters, which have features such as high efficiency, wide input operating range, and low standby current, making them suitable for many battery-powered applications.
The TSR-1 Series are step‑down switching regulators designed as drop‑in replacements for 78xx linear regulators. They offer high efficiency (up to 96 %), low standby current and built‑in filter capacitors, eliminating the need for external components or heat‑sinks.
Technical data include a 4.6‑36 VDC input range, selectable output voltages from 1.2 VDC to 12 VDC, typical efficiencies of 74 %–95 %, 500 kHz switching frequency, and operation from –40 °C to +85 °C. The compact SIP package weighs 1.9 g and meets safety standards UL 60950‑1, EN 60950‑1 and IEC 60950‑1.
| Maximum efficiency | 96 % |
|---|---|
| Input voltage range | 4.6 VDC – 36 VDC |
| Typical switching frequency | 500 kHz |
| No‑load input current | 1 mA typ. |
| Operating temperature range | –40 °C to +85 °C |
| Package weight | 1.9 g (0.07 oz) |
They achieve up to 96 % efficiency.
The converters operate from 4.6 VDC to 36 VDC.
No heat sink is required for operation.
The no‑load input current is typically 1 mA.