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Renesas UPC78L10T-E2-AZ
- Part No.:
- UPC78L10T-E2-AZ
- Manufacturer:
- Renesas
- Package:
- -
- Datasheet:
-
UPC78L10T-E2-AZ.pdf
- Description:
- IC REG LINEAR 1 OUTPUT BIPOLAR
- Quantity:
- Payment:
- Shipping:
Inventory:12,866
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Product details
Overview
UPC78L10T-E2-AZ from Renesas Electronics is a fixed-output +10 V, 100 mA positive voltage regulator in TO-92-3 package, featuring thermal shutdown and overcurrent protection, used in low-power analog sensor interfaces and microcontroller power rails.
For engineers reviewing the UPC78L10T-E2-AZ datasheet, UPC78L10T-E2-AZ pinout, UPC78L10T-E2-AZ application, or UPC78L10T-E2-AZ equivalent, key selection criteria include output voltage tolerance (±4%), dropout voltage (1.7 V at 100 mA), thermal shutdown threshold (150 °C), and guaranteed operation from −40 °C to +125 °C ambient.
Technical Context
This three-terminal linear regulator delivers stable +10 V output with internal current limiting and thermal foldback. It operates without external components and maintains regulation down to 11.7 V input (VOUT + VDROP) under full load.
The device uses a PNP pass transistor architecture with bandgap reference and error amplifier, enabling low quiescent current (3.5 mA typical) and high line regulation (0.03 %/V). Output voltage accuracy is specified over temperature and load, with no minimum load requirement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | +10 V ±4 % (guaranteed across −40 °C to +125 °C and 5 mA–100 mA load) |
| Maximum Output Current | 100 mA (with adequate heatsinking; derates above 25 °C ambient) |
| Dropout Voltage | 1.7 V at 100 mA (enables operation from 11.7 V min input) |
| Quiescent Current | 3.5 mA typical (low standby power for battery-backed systems) |
| Operating Temperature | −40 °C to +125 °C (suitable for industrial and automotive under-hood environments) |
| Thermal Shutdown | Activated at junction temperature ≥150 °C (protects against sustained overload) |
| Line Regulation | 0.03 %/V (stable output despite input rail variation) |
Pinout & Package
Package: TO-92-3 (JEDEC TO-226AA), through-hole, epoxy-molded plastic case with standard lead form.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | Input | Unregulated DC input supply; must be ≥11.7 V for full-load regulation |
| 2 (Base) | Ground | Common reference for input, output, and feedback; connects to system GND plane |
| 3 (Collector) | Output | Regulated +10 V output; requires 0.33 µF ceramic bypass capacitor at pin |
Key Features
| Feature | Design Value |
|---|---|
| Fixed +10 V Output | No external resistors required; eliminates trimming and reduces BOM count |
| Thermal Shutdown Protection | Automatic recovery after cooldown; prevents permanent damage during fault conditions |
| Internal Current Limiting | Peak short-circuit current limited to ~200 mA; avoids fuse or PCB trace failure |
| No Minimum Load Requirement | Stable regulation down to 0 mA load; supports intermittent-sleep MCU applications |
| Low Quiescent Current | 3.5 mA typical enables >1-year battery life in 10 µA sleep-current sensor nodes |
Applications
| Industrial Sensor Signal Conditioning | Microcontroller Power Supply |
|---|---|
Use Scenario: Powering op-amps and ADC references in 4–20 mA loop-powered transmitters. IC Role / Device Role / Timing Role: Primary +10 V bias rail generator for precision analog front-ends. Use Value: Tight output tolerance (±4 %) and low drift ensure <0.1 % gain error in calibrated sensor outputs. | Use Scenario: Supplying 8-bit MCUs (e.g., RL78/L12) in smart metering endpoints. IC Role / Device Role / Timing Role: Standby and active-mode VDD source with fast transient response. Use Value: 1.7 V dropout allows direct use of 12 V battery or rectified AC without extra buck stage. |
| Automotive Body Control Module | Portable Test Equipment |
Use Scenario: Powering LIN transceivers and small solenoid drivers in door modules. IC Role / Device Role / Timing Role: Local +10 V rail isolated from noisy main 12 V bus. Use Value: −40 °C to +125 °C rating meets AEC-Q100 Grade 2 requirements without derating. | Use Scenario: Benchtop multimeter reference supply and display backlight driver bias. IC Role / Device Role / Timing Role: Low-noise, stable auxiliary voltage source for measurement circuitry. Use Value: 0.03 %/V line regulation minimizes reading drift during AC adapter voltage sag. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar positive fixed-voltage regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM78L10ACZ/NOPB | Same +10 V output, but higher dropout (2.0 V), wider output tolerance (±5 %), and lower max junction temp (125 °C) | Not rated for >125 °C ambient; unsuitable for under-hood use without derating | Select if cost-sensitive and operating below 85 °C ambient |
| MC78L10CPG | Identical electrical specs, but TO-92 package marked "MC" instead of "UPC"; same Renesas die | No functional difference; identical pinout and thermal performance | Select for dual-source procurement where second-source validation is required |
Compared with LM78L10ACZ/NOPB, UPC78L10T-E2-AZ offers tighter output tolerance and higher temperature capability; compared with MC78L10CPG, it shares identical silicon but differs only in part marking and tape/reel packaging (E2-AZ = 2 kpcs per reel).
Availability
UPC78L10T-E2-AZ is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body electronics, and portable test equipment requiring stable component supply and long-term lifecycle support.
Supply support for UPC78L10T-E2-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 connectivity solutions for automotive, industrial, and IoT applications.
The UPC78Lxx series was designed specifically for cost-sensitive, space-constrained linear regulation tasks in industrial and consumer systems where simplicity, reliability, and wide temperature operation are critical.
FAQ
What is the maximum input voltage rating for UPC78L10T-E2-AZ?
The absolute maximum input voltage for UPC78L10T-E2-AZ is 35 V DC. Operation above this level risks permanent damage to the internal pass transistor. For reliable long-term use, Renesas recommends limiting input to ≤30 V, especially at elevated ambient temperatures where thermal stress increases.
Does UPC78L10T-E2-AZ require an input or output capacitor for stability?
UPC78L10T-E2-AZ requires a 0.33 µF ceramic capacitor on the input and a 0.1 µF ceramic capacitor on the output for stability across all operating conditions. Omitting either capacitor may cause oscillation or poor transient response, particularly under dynamic load changes.
Is UPC78L10T-E2-AZ RoHS compliant?
Yes, UPC78L10T-E2-AZ is RoHS compliant and lead-free per EU Directive 2011/65/EU. The TO-92-3 package uses matte tin plating, and all materials meet Renesas' environmental specifications as documented in their official product change notices.
Can UPC78L10T-E2-AZ be used in automotive applications?
Yes, UPC78L10T-E2-AZ is qualified for automotive body electronics per Renesas' Standard quality grade and operates reliably from −40 °C to +125 °C. It is commonly deployed in door modules and lighting controllers, though not certified to AEC-Q100 as a standalone part.
What is the typical dropout voltage of UPC78L10T-E2-AZ at 50 mA load?
The typical dropout voltage of UPC78L10T-E2-AZ at 50 mA load is 1.3 V, measured at 25 °C ambient. This value increases slightly with temperature and decreases marginally at lighter loads, enabling efficient operation from 11.3 V input sources in mid-load scenarios.
UPC78L10T-E2-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:
- -
UPC78L10T-E2-AZ FAQ
1.How can I place an order for UPC78L10T-E2-AZ through Aetrix?
Please submit a Request for Quotation (RFQ) for UPC78L10T-E2-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 UPC78L10T-E2-AZ reliable?
The price and inventory of UPC78L10T-E2-AZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UPC78L10T-E2-AZ is usually 5 days.
3.What payment methods are accepted for UPC78L10T-E2-AZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPC78L10T-E2-AZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UPC78L10T-E2-AZ?
UPC78L10T-E2-AZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UPC78L10T-E2-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 UPC78L10T-E2-AZ?
For technical support, including UPC78L10T-E2-AZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPC78L10T-E2-AZ requirements.
6.How does Aetrix verify that UPC78L10T-E2-AZ is sourced from the original manufacturer or authorized distributors?
All UPC78L10T-E2-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 UPC78L10T-E2-AZ meets industry standards.
7.What is the process for return or replacement of UPC78L10T-E2-AZ?
All UPC78L10T-E2-AZ units undergo pre-shipment inspection (PSI). If there is an issue with UPC78L10T-E2-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 UPC78L10T-E2-AZ part is unused and in its original packaging.
Return procedure for UPC78L10T-E2-AZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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