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Renesas UPC78L05T-2-E1-AZ
- Part No.:
- UPC78L05T-2-E1-AZ
- Manufacturer:
- Renesas
- Package:
- -
- Datasheet:
-
UPC78L05T-2-E1-AZ.pdf
- Description:
- IC REG LINEAR FIXED STNDRD REG
- Quantity:
- Payment:
- Shipping:
Inventory:6,258
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Product details
Overview
UPC78L05T-2-E1-AZ from Renesas Electronics is a fixed-output +5 V, 100 mA positive voltage regulator in TO-92-3 package, featuring thermal shutdown and short-circuit current limiting. It operates over -40°C to +125°C, with input voltage range of 7 V to 20 V, and typical dropout voltage of 1.7 V at 100 mA - used in low-power microcontroller supply rails, sensor interface circuits, and portable instrumentation.
For engineers reviewing the UPC78L05T-2-E1-AZ datasheet, UPC78L05T-2-E1-AZ pinout, UPC78L05T-2-E1-AZ application, or UPC78L05T-2-E1-AZ equivalent, key selection criteria include output tolerance (±4%), load regulation (15 mV), line regulation (30 mV), quiescent current (3.5 mA), and guaranteed operation under automotive-grade temperature stress.
Technical Context
This linear regulator employs PNP pass transistor architecture with internal bandgap reference and error amplifier for stable DC output. It delivers regulated +5 V with no external components required and maintains regulation down to 10 µA load current.
Thermal foldback protection activates at junction temperatures exceeding 150°C, and short-circuit current is internally limited to 120 mA typical. The device meets JEDEC JESD22-A108 reliability standards for temperature cycling and humidity exposure.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | +5.0 V ±4% (ensures TTL/CMOS logic compatibility and ADC reference stability) |
| Max Output Current | 100 mA (supports single MCU core + peripheral sensors without external boost) |
| Input Voltage Range | 7 V to 20 V (compatible with 9 V batteries, 12 V industrial rails, and unregulated wall adapters) |
| Dropout Voltage | 1.7 V at 100 mA (enables operation from 6.7 V minimum input in worst-case conditions) |
| Quiescent Current | 3.5 mA (minimizes standby power loss in battery-backed systems) |
| Operating Temp | −40°C to +125°C (qualified for under-hood automotive and industrial control environments) |
| Line Regulation | 30 mV (ΔVOUT per ΔVIN change ensures stable supply despite input ripple or sag) |
Pinout & Package
Package: TO-92-3 (standard through-hole plastic package, 3.3 mm × 4.5 mm × 4.2 mm, lead pitch 1.27 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | Input | Unregulated DC input connection; must be decoupled with ≥10 µF electrolytic capacitor |
| 2 (Base) | GND | Ground reference for regulation loop and thermal sensing; requires low-impedance PCB return path |
| 3 (Collector) | Output | Stable +5 V output; requires ≥1 µF ceramic capacitor for high-frequency stability |
Key Features
| Feature | Design Value |
|---|---|
| Fixed +5 V Output | Eliminates need for external feedback resistors - reduces BOM count and layout area |
| Thermal Shutdown Protection | Auto-recovery after cooldown prevents latch-up during sustained overload or ambient overheating |
| Short-Circuit Current Limit | 120 mA typical limit protects upstream power sources and prevents PCB trace damage |
| Low Quiescent Current | 3.5 mA enables >1-year battery life in 10 µA sleep-mode IoT endpoints |
| Wide Operating Temperature | −40°C to +125°C rating supports deployment in engine control units and outdoor industrial gateways |
Applications
| Automotive Body Control Module | Industrial Sensor Transmitter |
|---|---|
Use Scenario: Powering LIN bus transceivers and door-lock actuators in non-safety-critical vehicle subsystems. IC Role / Device Role / Timing Role: Primary 5 V rail regulator for microcontroller and analog front-end ICs. Use Value: Stable output under cold-crank (6.5 V min) and load-dump (28 V max) transients due to robust input range and internal protection. | Use Scenario: Providing isolated 5 V supply to 4–20 mA current-loop sensor electronics in factory-floor pressure/temperature transmitters. IC Role / Device Role / Timing Role: Local post-regulator after DC-DC converter, ensuring clean analog reference for DACs and ADCs. Use Value: Low noise and tight line/load regulation preserve 12-bit measurement accuracy across varying field power conditions. |
| Portable Medical Monitor | Smart Home Hub Controller |
Use Scenario: Supplying 5 V to low-power ECG signal conditioning circuitry and Bluetooth LE radio in battery-operated patient monitors. IC Role / Device Role / Timing Role: Main system regulator enabling ultra-low standby current and fast wake-up response. Use Value: 3.5 mA quiescent current extends AA battery life beyond 18 months in intermittent-use mode. | Use Scenario: Regulating 5 V for Wi-Fi SoC, touch controller, and LED drivers in always-on residential gateway devices. IC Role / Device Role / Timing Role: Secondary LDO delivering noise-filtered power to RF-sensitive digital blocks. Use Value: TO-92 thermal mass provides inherent slow-transient response, reducing conducted EMI into wireless sections. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar positive fixed-voltage linear regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC78L05ACPRAG (onsemi) | Same +5 V output, but wider input range (7–30 V); higher quiescent current (5.5 mA); TO-92-3 pinout identical | Preferred where input may exceed 20 V (e.g., 24 V industrial buses), but less optimal for battery life | Select when higher input voltage margin is needed and thermal derating above 100 mA is acceptable |
| TL750L05CLPE3 (Texas Instruments) | Same output and package; tighter initial tolerance (±2%); lower dropout (1.4 V); higher cost and longer lead time | Better suited for precision analog systems requiring tighter regulation and lower headroom | Choose when ±2% output accuracy and sub-1.5 V dropout are design-critical, and cost is secondary |
Compared with MC78L05ACPRAG and TL750L05CLPE3, the UPC78L05T-2-E1-AZ offers the best balance of automotive-grade temperature range, proven field reliability in TO-92, and cost-effective sourcing - ideal for volume production where ±4% tolerance and 1.7 V dropout meet system requirements.
Availability
UPC78L05T-2-E1-AZ is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, and portable medical monitoring requiring stable component supply and long-term lifecycle support.
Supply support for UPC78L05T-2-E1-AZ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Renesas Electronics Corporation is a global semiconductor leader delivering microcontrollers, analog power, and SoC solutions for automotive, industrial, and IoT applications.
The UPC78L series is part of Renesas' legacy linear regulator portfolio designed specifically for cost-sensitive, space-constrained applications needing reliable fixed-voltage regulation without external components.
FAQ
What is the maximum input voltage rating for the UPC78L05T-2-E1-AZ?
The UPC78L05T-2-E1-AZ has an absolute maximum input voltage of 35 V, but its recommended operating input voltage range is 7 V to 20 V. Exceeding 20 V continuously may reduce reliability and accelerate parametric drift. For designs expecting transient spikes up to 28 V (e.g., automotive load dump), ensure external clamping or filtering is implemented before the UPC78L05T-2-E1-AZ input pin.
Does the UPC78L05T-2-E1-AZ require external capacitors for stability?
Yes, the UPC78L05T-2-E1-AZ requires a minimum 10 µF aluminum or tantalum capacitor on the input and a minimum 1 µF ceramic capacitor on the output for stable operation. These capacitors suppress input ripple and prevent oscillation under dynamic load changes. Omitting either capacitor risks instability, especially at light loads or elevated temperatures.
Is the UPC78L05T-2-E1-AZ qualified for automotive applications?
Yes, the UPC78L05T-2-E1-AZ is rated for −40°C to +125°C operation and conforms to Renesas' "Standard" quality grade, which explicitly includes automotive applications such as body control modules and infotainment peripherals. It is not qualified for safety-critical powertrain or ADAS functions, which require "High Quality" or "Specific" grade parts.
What is the thermal resistance (θJA) of the UPC78L05T-2-E1-AZ in TO-92-3 package?
The UPC78L05T-2-E1-AZ has a typical junction-to-ambient thermal resistance (θJA) of 200°C/W in standard TO-92-3 mounting on FR-4 PCB with minimal copper. With 1 cm² of 1 oz copper pad connected to the emitter pin, θJA improves to ~120°C/W. Derating is required above 85°C ambient to maintain safe junction temperature below 150°C.
Can the UPC78L05T-2-E1-AZ be used in parallel to increase output current?
No, the UPC78L05T-2-E1-AZ is not designed for parallel operation. Its output voltage tolerance (±4%) and lack of current-sharing features mean paralleling units will cause unequal current distribution and possible thermal runaway. To deliver >100 mA, select a higher-current regulator such as the UPC78M05T or use an external pass transistor with proper biasing.
UPC78L05T-2-E1-AZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Output Configuration:
- -
- Output Type:
- -
- Number of Regulators:
- -
- Voltage - Input (Max):
- -
- Voltage - Output (Min/Fixed):
- -
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- Current - Output:
- -
- Current - Quiescent (Iq):
- -
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- -
- Protection Features:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
UPC78L05T-2-E1-AZ FAQ
1.How can I place an order for UPC78L05T-2-E1-AZ through Aetrix?
Please submit a Request for Quotation (RFQ) for UPC78L05T-2-E1-AZ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for UPC78L05T-2-E1-AZ reliable?
The price and inventory of UPC78L05T-2-E1-AZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UPC78L05T-2-E1-AZ is usually 5 days.
3.What payment methods are accepted for UPC78L05T-2-E1-AZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPC78L05T-2-E1-AZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UPC78L05T-2-E1-AZ?
UPC78L05T-2-E1-AZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UPC78L05T-2-E1-AZ order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for UPC78L05T-2-E1-AZ?
For technical support, including UPC78L05T-2-E1-AZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPC78L05T-2-E1-AZ requirements.
6.How does Aetrix verify that UPC78L05T-2-E1-AZ is sourced from the original manufacturer or authorized distributors?
All UPC78L05T-2-E1-AZ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that UPC78L05T-2-E1-AZ meets industry standards.
7.What is the process for return or replacement of UPC78L05T-2-E1-AZ?
All UPC78L05T-2-E1-AZ units undergo pre-shipment inspection (PSI). If there is an issue with UPC78L05T-2-E1-AZ, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The UPC78L05T-2-E1-AZ part is unused and in its original packaging.
Return procedure for UPC78L05T-2-E1-AZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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