RJR710xx-Q1 / -QD · 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 |
| Cross-reference | TLS810B / TPS7B81 / NCV8664 / TLE4264 |
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.
Body Electronics
Covering windows, door handles, power tailgates, sunroofs, seats, electronic wipers and charge-p…
Automotive Lighting & Smart Cockpit
Control and drive for dynamic ambient lighting, smart surfaces, interior and exterior lamps and …
Powertrain
Covering transmission, fuel tank, engine peripherals and traction systems — chip solutions for e…
Industry & Robotics
Current sensing, position feedback and speed measurement for servo drives, robot joints, industr…
Other devices in this series
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