TLS810D1EJV50XUMA1 - 5V 100mA LDO | Infineon | OPTIREG
MPN: TLS810D1EJV50XUMA1 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.59 | $1.59 |
| 10 | $1.42 | $14.20 |
| 25 | $1.34 | $33.50 |
| 100 | $1.15 | $115.00 |
| 250 | $1.08 | $270.00 |
| 500 | $0.94 | $470.00 |
| 1,000 | $0.82 | $820.00 |
TLS810D1EJV50XUMA1 Overview
An LDO (Low-Dropout) linear regulator is a class of voltage regulator that maintains a stable output voltage even when the input voltage approaches the output voltage. LDO regulators sit inside the broader hierarchy of linear regulators -> voltage regulators -> power management ICs -> semiconductor devices. Unlike switching converters, an LDO dissipates the difference between input and output as heat, so it adds no switching noise and provides exceptionally clean power rails ideal for noise-sensitive analog and RF stages.
Key features of the TLS810D1EJV50XUMA1 include a wide 2.75 V to 42 V input operating range that tolerates automotive load-dump transients, ultra-low 9 µA quiescent current that preserves battery life in always-on subsystems, integrated output current limitation, overtemperature shutdown, and reverse-polarity protection on the input. The PG-DSO-8 exposed-pad package reduces thermal resistance and supports sustained 100 mA output without external heatsinking at moderate input voltages.
The regulator uses a PNP pass-transistor architecture with an internal precision bandgap reference and trimmed feedback network, achieving 2% output accuracy across line, load, and temperature. The wide input range also allows direct connection to 12 V and 24 V automotive rails without pre-regulation, simplifying BOM and PCB area.
Typical applications include automotive body and chassis ECUs, sensor supplies (pressure, position, temperature), CAN/LIN transceiver rails, infotainment standby rails, industrial 24 V bus sensor nodes, and battery-powered IoT edge devices requiring always-on standby regulation. The 5 V fixed output is the most common MCU and sensor rail in automotive designs.
Design consideration: power dissipation equals (VIN - VOUT) × IOUT. At VIN = 12 V, VOUT = 5 V, and 100 mA load, the device dissipates roughly 0.7 W. Ensure the PCB copper area tied to the exposed pad provides adequate heat spreading to keep the junction below the 150 °C thermal shutdown threshold.
This page synthesizes distributor pricing, drop-in alternatives in the same PG-DSO-8 footprint, and practical design notes not found in the manufacturer datasheet, providing engineers an information-gain reference for component selection and second-source decisions.
Drop-in alternatives for TLS810D1EJV50XUMA1 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with TLS810D1EJV50XUMA1 (same form factor and footprint) — differing in Output Voltage, Package, Dropout Voltage, Operating Temperature Range, Protection Features.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
TLS810B1LDV50XUMA1
✅ Drop-In✓ In Stock
$0.34 / Unit
View Datasheet →TLS810A1LDV50XUMA1
✅ Drop-In📋 Reference alternative (not in catalog)
TLE42642GHXUMA2
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
R5112S051B-E2-AE
✅ Drop-In📋 Reference alternative (not in catalog)
TLS810D1EJV50XUMA1 Maximum Ratings & Electrical Characteristics
| Manufacturer | Infineon Technologies |
| Product Family | OPTIREG LINEAR |
| Regulator Type | LDO (Low-Dropout) Linear Regulator - Fixed Output |
| Output Type | Fixed 5.0 V |
| Output Voltage | 5.0 V (±2%) |
| Maximum Output Current | 100 mA |
| Input Voltage Range | 2.75 V to 42 V |
| Quiescent Current (typ) | 9 µA |
| Operating Temperature Range | -40 °C to +150 °C (junction) |
| Package | PG-DSO-8 (SO-8 with exposed pad) |
| Mounting Type | Surface Mount |
| Output Current Limit | Yes (internal) |
| Overtemperature Shutdown | Yes (internal) |
| Reverse Polarity Protection | Yes (input) |
| Automotive Grade | Yes (OPTIREG LINEAR, AEC-Q100 qualified) |
| RoHS Status | Compliant |
| MSL Level | 1 |
TLS810D1EJV50XUMA1 Pin Configuration
| Pin 1 | IN — Input voltage supply (2.75 V to 42 V) |
| Pin 2 | NC — Not connected (per datasheet) |
| Pin 3 | GND — Ground reference |
| Pin 4 | NC — Not connected (per datasheet) |
| Pin 5 | OUT — Regulated 5.0 V output |
| Pin 6 | NC — Not connected (per datasheet) |
| Pin 7 | NC — Not connected (per datasheet) |
| Pin 8 | NC — Not connected (per datasheet) |
| Pin PAD | EP — Exposed pad - thermal and electrical ground (must be soldered to PCB) |
Typical Applications
TLS810D1EJV50XUMA1 is suitable for 6 applications: Automotive Body and Chassis ECU, CAN/LIN Transceiver Power Rail, Automotive Sensor Supply (5 V), Industrial 24V Sensor Node, Battery-Powered IoT Edge Device, Infotainment Standby Rail.
Automotive Body and Chassis ECU
The TLS810D1EJV50XUMA1 is ideal for body and chassis electronic control units requiring a clean 5 V supply on a noisy 12 V/24 V vehicle bus. Its 42 V maximum input voltage and integrated reverse-polarity protection absorb load-dump and jump-start transients per ISO 7637 without external TVS clamps. The 9 µA quiescent current keeps standby drain below the typical 100 µA budget for always-on body controllers, keyless entry, and lighting ECUs. Exposed-pad PG-DSO-8 packaging reduces θJA so the LDO sustains 100 mA output across the -40 °C to +125 °C automotive underhood temperature range.
Recommended
CAN/LIN Transceiver Power Rail
CAN and LIN transceivers require a quiet 5 V rail to maintain signal integrity on the bus. The TLS810D1EJV50XUMA1's LDO topology adds zero switching ripple, eliminating the EMI risk that buck regulators introduce near sensitive high-speed CAN-FD lines. Its 100 mA continuous output comfortably powers a transceiver plus local MCU, while the 2.75 V minimum input supports cold-crank conditions down to 6 V nominal battery (with TVS clamp). Automotive AEC-Q100 qualification makes it directly drop-in to existing 12 V CAN node designs.
Recommended
Automotive Sensor Supply (5 V)
The TLS810D1EJV50XUMA1 powers 5 V automotive sensors including pressure, position, and temperature sensors that sit on the 12 V bus. With 2% output accuracy and ultra-low noise, it preserves sensor measurement precision and signal-to-noise ratio over the full operating temperature range. The exposed-pad SO-8 footprint supports reflow-compatible PCB assembly at high-volume automotive contract manufacturers. Reverse-polarity input protection prevents field failures from reversed battery connections during service.
Recommended
Industrial 24V Sensor Node
Industrial 24 V bus sensor nodes benefit from the TLS810D1EJV50XUMA1's 42 V input tolerance, which provides headroom against 24 V industrial transients (IEC 61000-4-2/4-4/4-5). The 9 µA Iq preserves battery life in remote wireless sensor installations where sleep current dominates the energy budget. The 5 V fixed output directly drives microcontrollers and 4-20 mA loop interfaces in factory automation and process control. AEC-Q100 robustness translates to long-term reliability in harsh industrial environments with elevated ambient temperatures.
Recommended
Battery-Powered IoT Edge Device
Battery-powered IoT edge devices, including smart locks, asset trackers, and remote monitoring nodes, demand multi-year battery life on a coin cell or 2xAA supply. The TLS810D1EJV50XUMA1's 9 µA quiescent current is well below the typical sleep current of an MCU with radio enabled, ensuring it does not become the bottleneck in standby power budgets. The wide 2.75 V to 42 V input range also allows direct USB or solar-panel powering in energy-harvesting designs without a pre-regulator.
Recommended
Infotainment Standby Rail
Automotive infotainment head units require a 5 V standby rail to maintain system memory, clock, and wake-up logic when the ignition is off. The TLS810D1EJV50XUMA1 delivers this standby rail directly from the 12 V battery with only 9 µA Iq, preserving the vehicle's quiescent drain budget. Its small exposed-pad SO-8 package fits beneath the infotainment main board without forced-air cooling, and AEC-Q100 qualification supports OEM requirements for in-cabin electronics.
Recommended
Recommended Products Summary
Engineering reference data for TLS810D1EJV50XUMA1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TLS810B1LDV50XUMA1 | TLS810A1LDV50XUMA1 | TLE42642GHXUMA2 | R5112S051B-E2-AE |
|---|---|---|---|---|---|
| Brand | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Ricoh |
| Package | PG-DSO-8 (SO-8 with exposed pad) | PG-DSO-8 - same | PG-DSO-8 / TSON-10 option | PG-DSO-8 - same | PG-DSO-8 - same |
| Output Voltage | 5.0 V fixed | 5.0 V fixed | 5.0 V fixed | 5.0 V fixed | 5.0 V fixed |
| Input Voltage Range | 2.75 V to 42 V | 2.75 V to 42 V (typical) | 2.75 V to 42 V (typical) | 5.5 V to 45 V | up to ~6 V (low-Vin part) |
| Reverse-Polarity Input Protection | Yes | Yes | Yes | Yes | No (external required) |
Key Differentiators
- 42 V maximum input voltage with reverse-polarity protection (vs R5112S051B-E2-AE (Ricoh))
- Ultra-low 9 µA quiescent current (vs TLE42642GHXUMA2)
- OPTIREG LINEAR family with full AEC-Q100 qualification (vs Generic cross-brand LDOs)
- Exposed-pad SO-8 footprint reduces thermal resistance (vs Standard SO-8 LDOs)
Design Notes
Estimated: at VIN = 12 V, VOUT = 5 V, IOUT = 100 mA, power dissipation is (12 - 5) × 0.1 = 0.7 W. With θJA around 50 °C/W (typical for PG-DSO-8 with minimum pad), junction rises approximately 35 °C above ambient, well within the 150 °C thermal shutdown limit. At VIN = 24 V, dissipation rises to ~1.9 W and the exposed pad must be soldered to at least 1 cm² of copper pour for thermal headroom.
Place a 1 µF to 10 µF low-ESR ceramic input capacitor as close as possible to the IN pin to suppress input transients and provide stability. Place a 1 µF to 22 µF low-ESR ceramic output capacitor at the OUT pin (minimum ESR < 200 mΩ). The exposed pad must be soldered to the PCB thermal copper - this provides both the primary heat path and the ground reference. Keep input/output traces short and wide to minimize parasitic voltage drops.
Do not exceed the absolute maximum input voltage of 42 V; add a transient voltage suppressor (TVS) or external clamp if the input bus can see >42 V spikes. Verify input and output capacitor ESR is within the datasheet stability range - high-ESR tantalum capacitors without a parallel ceramic can cause oscillation. Ensure the input voltage does not fall below VOUT + dropout at full load, or the regulator will drop out of regulation.
Route high-current output traces separately from sensitive analog signal paths to avoid ground bounce. Connect the exposed pad to a dedicated ground copper pour that is stitched to the main ground plane with multiple vias. Keep the output capacitor ground return path short and direct to minimize ground-loop-induced noise. For automotive EMI compliance (CISPR 25), place input filter components within 5 mm of the IN pin.
Compliance Information
OPTIREG LINEAR family, AEC-Q100 automotive-qualified per Infineon product page. RoHS and REACH compliant per distributor listings. Halogen-free status not explicitly stated in verified web data.
