Categories: Switching regulator LM78, HN-Power
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General Details
RIM78‑XXX‑1.0 – High-Efficiency DC/DC Step-Down Converter 1 A, Non-Isolated
Discover the RIM78‑XXX‑1.0 series, reliable non-isolated DC/DC step-down converters from HN Electronic Components GmbH & Co. KG. With up to 94 % efficiency and compact SIL‑3 plastic packages, these converters are perfect for industrial, automotive, and embedded applications.
Features & Benefits
- Pin-compatible with LM78XX linear regulators – easy drop-in replacement
- Wide input voltage range (e.g., 4.75–18 V) – versatile system integration
- Short-circuit proof with auto-recovery – protects your circuits
- No heatsink required – space-saving and efficient
- RoHS-compliant & UL94V‑0 package – safe and environmentally friendly
- Switching frequency approx. 330 kHz – minimal ripple and noise
Technical Specifications
- Output current: 1.0 A
- Output voltages: 1.5 V, 1.8 V, 2.5 V, 3.3 V, 5.0 V (model-dependent)
- Load regulation: ±0.6 %
- Ripple & Noise: max. 60 mV p‑p
- Operating temperature: –40 °C to +85 °C
- Maximum case temperature: 100 °C
- Temperature coefficient: ±0.02 %/°C
- MTBF: > 4.3 million hours
Typical Applications
- Replacement for LM78XX linear regulators
- Point-of-Load power supply for embedded and industrial systems
- Building isolated or dual output systems with additional modules
- Circuits with wide input voltage ranges
Notes
- Input filter (C1, L, C2) recommended for EMC compliance
- External smoothing capacitor required for EN61000‑4‑4 / -5
- Operation without load is possible, specifications may vary slightly
Available models
- RIM78-015-1.0 : 1,5V / 1A
- RIM78-018-1.0 : 1,8V / 1A
- RIM78-025-1.0 : 2,5V / 1A
- RIM78-033-1.0 : 3,3V / 1A
- RIM78-050-1.0 : 5V / 1A
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