RJR710xx · 150 mA, 40 V Ultra-low Quiescent Current Automotive LDO
3 V–40 V wide input with fixed 3.3 V / 5 V output, 5.5 µA typical quiescent current and 800 nA shutdown current — ideal for always-on systems connected directly to the battery.
The RJR710xx family comprises 150 mA automotive-grade LDOs for always-on systems connected directly to the battery. The 3 V–40 V wide input range tolerates transients up to 42 V, with fixed 3.3 V (RJR71033) or 5 V (RJR71050) output.
Typical light-load quiescent current is only 5.5 µA and shutdown current is as low as 800 nA; combined with a 300 mV typical dropout at 150 mA, this noticeably reduces the power consumption of always-on systems. The device operates stably with low-ESR (1 mΩ–5 Ω) ceramic output capacitors from 1 µF to 200 µF.
Datasheets & documents
Datasheets, application notes, user manuals and selection guides — each item is labelled with its type and how to get it. Public documents download directly; documents marked confidential require a separate request, and we will confirm your project details before releasing them.
Downloadable documents
40 V / 60 V Automotive LDO Cross-Reference Selection Table
Selection Guide Sign in to download
Need more material such as application notes, reference designs or reliability reports? Contact an application engineer → · Browse all documents →
Specifications
| Input voltage range | 3 V ~ 40 V (42 V transient maximum) |
|---|---|
| Maximum output current | 150 mA |
| Output voltage | Fixed 3.3 V / 5 V |
| Quiescent current Iq | 5.5 µA typical at light load |
| Shutdown current | 800 nA |
| Output voltage accuracy | ±2% |
| Dropout | 300 mV typical at 150 mA load |
| Automotive grade | AEC-Q100 Grade 1 |
| Junction temperature range | TJ −40 °C ~ 150 °C |
| Package | DFN-8 / SOT-223-4 / SOP8-EP |
Key features
- 3 V–40 V wide input with 42 V transient tolerance for direct battery connection
- Ultra-low quiescent current extends battery life in always-on systems
- ±2% output accuracy, stable over the full temperature range
- EN enable control supported
- Stable operation with low-ESR ceramic capacitors
- 40 V low-Iq LDO cross-reference table to simplify second-source selection
Typical applications
- Automotive: always-on systems connected directly to the battery
- Automotive: infotainment / ADAS / instrument cluster
- Automotive: powertrain
- Automotive: exterior lighting systems
- Automotive: body control module BCM / central gateway / T-Box
- Automotive: always-on low-power nodes such as TPMS, door handles and door switches
Application areas
This device is used across the application areas below — open any of them for the full solution and recommended part numbers.
Need selection support or samples?
Our application engineers work from your system design and provide magnet selection, field simulation, motor system support and reference designs.