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Renesas UPC29M08HF-AZ
- Part No.:
- UPC29M08HF-AZ
- Manufacturer:
- Renesas
- Package:
- -
- Datasheet:
-
UPC29M08HF-AZ.pdf
- Description:
- IC REG LINEAR FIXED LDO REG
- Quantity:
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Inventory:6,993
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Product details
Overview
UPC29M08HF-AZ from Renesas Electronics is a three-terminal low-dropout positive voltage regulator with PNP output transistor, delivering 0.5 A output current at 8.0 V nominal output, 0.5 V typical dropout (IO = 0.5 A), and integrated over-current, thermal, and safe operating area protection. It serves as a primary power supply regulator in industrial control modules requiring stable 8 V rail generation from 9–18 V input sources.
For engineers reviewing the UPC29M08HF-AZ datasheet, UPC29M08HF-AZ pinout, UPC29M08HF-AZ application, or UPC29M08HF-AZ equivalent, key selection criteria include dropout voltage under full load, thermal resistance (7°C/W junction-to-case), quiescent current behavior across temperature, and compatibility with standard TO-220 heatsinking solutions.
Technical Context
The UPC29M08HF-AZ uses a PNP pass transistor architecture to achieve low dropout performance-unlike conventional NPN-based regulators-enabling operation with only 0.5 V headroom at 0.5 A. Its internal circuitry includes start-up control, error amplifier, drive stage, saturation protection, and dual safety mechanisms: thermal shutdown triggered above 150°C junction temperature and SOA protection limiting power dissipation during transient overload.
Designed for fixed-output regulation without external components, it requires only 0.1 µF input capacitance (CIN) and 47 µF output capacitance (COUT), both placed within 1–2 cm of pins. Input voltage range is 9–18 V, and output voltage tolerance is ±4% (7.6 V to 8.4 V) over –30°C to +125°C junction temperature and full load (0–0.5 A).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 8.0 V nominal, ±4% over –30°C to +125°C and 0–0.5 A load - ensures stable 8 V rail for logic and analog subsystems without trimming. |
| Dropout Voltage | 0.5 V typical at 0.5 A - enables use with low-headroom inputs (e.g., 9 V battery or buck converter output). |
| Output Current | 0.5 A continuous - sufficient for powering microcontrollers, sensors, and interface ICs in compact industrial modules. |
| Thermal Resistance (Junction-to-Case) | 7°C/W - supports high-power dissipation (up to 15 W at TC = 25°C) when mounted on standard TO-220 heatsinks. |
| Quiescent Current | 2.0–4.0 mA at no load, ≤30 mA at 0.5 A - minimizes standby power loss while maintaining regulation stability. |
| Ripple Rejection | 42–58 dB at 120 Hz (9–18 V input) - suppresses line-frequency noise from unregulated DC supplies or rectified AC sources. |
| Short-Circuit Current | 0.55–1.0 A depending on VIN - limits fault energy during output shorts while preserving device integrity via internal protection. |
Pinout & Package
UPC29M08HF-AZ uses the isolated TO-220 (MP-45G) package with metal tab electrically isolated from all pins. The case serves as a heatsink mounting surface but is not connected to any internal node.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (INPUT) | Regulator input supply connection | Accepts 9–18 V unregulated DC; must be decoupled with ≥0.1 µF capacitor placed within 2 cm to prevent oscillation. |
| 2 (GND) | Ground reference for internal circuitry and feedback | Provides return path for bias and error amplifier; connects to system ground plane with low-inductance trace. |
| 3 (OUTPUT) | Regulated 8.0 V output terminal | Delivers up to 0.5 A; requires ≥47 µF low-impedance electrolytic capacitor near pin to ensure stability and load transient response. |
Key Features
| Feature | Design Value |
|---|---|
| Low dropout voltage (0.5 V @ 0.5 A) | Enables efficient regulation from marginal input sources like aging batteries or post-buck rails, reducing heat generation vs. standard linear regulators. |
| Integrated thermal shutdown | Automatically disables output when junction temperature exceeds 150°C, preventing permanent damage during sustained overload or inadequate heatsinking. |
| On-chip SOA protection | Monitors instantaneous voltage-current product at the pass transistor to avoid destructive second breakdown during short transients or capacitive loads. |
| Pb-free (AZ suffix) construction | Meets RoHS Directive requirements with Sn100% plating; compatible with lead-free reflow profiles (peak 260°C, ≤60 s ≥220°C). |
| Fixed 8.0 V output with ±4% tolerance | Eliminates need for external resistive feedback network, simplifying BOM and layout while ensuring consistent voltage across temperature and load. |
Applications
| Industrial PLC I/O Module | Embedded Motor Control Board |
|---|---|
Use Scenario: Powering digital isolators, ADC front-ends, and microcontroller peripherals in DIN-rail-mounted programmable logic controller modules. IC Role / Device Role / Timing Role: Primary 8 V local regulator supplying isolated communication interfaces and analog signal conditioning circuits. Use Value: Maintains tight output regulation (±4%) across –30°C to +85°C ambient, enabling reliable data acquisition in factory environments without external trimming. | Use Scenario: Providing clean 8 V rail to gate drivers and current-sense amplifiers in compact brushless DC motor controllers. IC Role / Device Role / Timing Role: Fixed-output LDO delivering stable bias for precision op-amps and half-bridge driver ICs. Use Value: Low 150 µVrms output noise and 42–58 dB ripple rejection suppress switching noise from adjacent power stages, improving current measurement accuracy. |
| Test Equipment Power Supply | Legacy System Voltage Translation |
Use Scenario: Generating auxiliary 8 V supply for calibration circuitry and reference buffers in portable multimeters and signal generators. IC Role / Device Role / Timing Role: Secondary regulator deriving 8 V from higher-voltage internal DC-DC outputs. Use Value: 0.5 V dropout allows operation from 9 V intermediate rail, minimizing power loss and thermal stress in space-constrained enclosures. | Use Scenario: Replacing obsolete 8 V regulators in legacy industrial instrumentation where board space and pin compatibility are critical. IC Role / Device Role / Timing Role: Direct-fit replacement for through-hole 8 V LDOs using TO-220 footprint and identical pinout (INPUT-GND-OUTPUT). Use Value: Isolated TO-220 package permits reuse of existing heatsink and mounting hardware, eliminating PCB redesign. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-dropout voltage regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM2940CT-8.0/NOPB | Higher dropout (0.6 V min @ 0.5 A), higher quiescent current (10 mA typ), same TO-220-3 package. | Lower ripple rejection (45 dB @ 120 Hz) and wider output tolerance (±5%), less suitable for noise-sensitive analog sections. | Select if legacy LM2940 qualification or TI ecosystem alignment is required; verify thermal margin due to higher dropout. |
| TLV76018 | Surface-mount SOT-223, lower current (150 mA), much lower quiescent current (3 µA), but only 1.8 V output - not functionally equivalent. | Not a drop-in replacement: different package, output voltage, and current capability; intended for ultra-low-power 1.8 V systems. | Consider only for new designs targeting ultra-low IQ and 1.8 V logic; not viable for 8 V/0.5 A requirement. |
Compared with LM2940CT-8.0/NOPB, UPC29M08HF-AZ offers lower dropout and tighter output tolerance, improving efficiency and accuracy in 8 V applications; TLV76018 is incompatible due to voltage and current mismatch, confirming UPC29M08HF-AZ's role as a dedicated 8 V/0.5 A TO-220 LDO.
Availability
UPC29M08HF-AZ is available at Aetrix Electronics and suitable for industrial control systems, embedded motor drives, test equipment power supplies, and legacy system upgrades requiring stable component supply and long-term manufacturability.
Supply support for UPC29M08HF-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 formed in 2010 through the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog power devices, and automotive SoCs.
The µPC29Mxx series was designed specifically for industrial and computing applications requiring robust, fixed-output linear regulation with integrated protection - emphasizing reliability, thermal resilience, and ease of implementation in cost-sensitive through-hole designs.
FAQ
What is the maximum input voltage rating for the UPC29M08HF-AZ?
The absolute maximum input voltage for UPC29M08HF-AZ is 20 V. However, the recommended operating input voltage range is 9 V to 18 V per the datasheet's Recommended Operating Conditions table. Exceeding 18 V may compromise long-term reliability or trigger internal protection circuits, especially at elevated temperatures.
Does the UPC29M08HF-AZ require external capacitors, and what values are mandatory?
Yes, UPC29M08HF-AZ requires two external capacitors: a minimum 0.1 µF ceramic or film capacitor (CIN) between INPUT and GND, and a minimum 47 µF low-impedance electrolytic capacitor (COUT) between OUTPUT and GND. Both must be placed within 1–2 cm of their respective pins to ensure stability and prevent oscillation.
Is the metal tab on the UPC29M08HF-AZ package electrically connected to any pin?
No, the metal tab on the UPC29M08HF-AZ (isolated TO-220 MP-45G package) is electrically isolated from all internal circuitry and pins. It serves solely as a thermal interface for heatsink attachment and may be grounded or left floating based on mechanical and EMI requirements.
What protection features are built into the UPC29M08HF-AZ?
UPC29M08HF-AZ integrates three protection functions: over-current protection limiting peak output to 0.55–1.0 A depending on input voltage, thermal shutdown activating above 150°C junction temperature, and safe operating area (SOA) protection that dynamically restricts power dissipation during transient overload conditions.
How does the -AZ suffix affect the UPC29M08HF-AZ's compliance and assembly process?
The -AZ suffix indicates the UPC29M08HF-AZ is Pb-free with Sn100% plating, compliant with EU RoHS Directive. It requires lead-free reflow soldering with peak temperature ≤260°C for ≤60 seconds above 220°C - distinct from standard SnPb processes - and must not undergo more than three reflow cycles.
UPC29M08HF-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:
- -
UPC29M08HF-AZ FAQ
1.How can I place an order for UPC29M08HF-AZ through Aetrix?
Please submit a Request for Quotation (RFQ) for UPC29M08HF-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 UPC29M08HF-AZ reliable?
The price and inventory of UPC29M08HF-AZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UPC29M08HF-AZ is usually 5 days.
3.What payment methods are accepted for UPC29M08HF-AZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPC29M08HF-AZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UPC29M08HF-AZ?
UPC29M08HF-AZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UPC29M08HF-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 UPC29M08HF-AZ?
For technical support, including UPC29M08HF-AZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPC29M08HF-AZ requirements.
6.How does Aetrix verify that UPC29M08HF-AZ is sourced from the original manufacturer or authorized distributors?
All UPC29M08HF-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 UPC29M08HF-AZ meets industry standards.
7.What is the process for return or replacement of UPC29M08HF-AZ?
All UPC29M08HF-AZ units undergo pre-shipment inspection (PSI). If there is an issue with UPC29M08HF-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 UPC29M08HF-AZ part is unused and in its original packaging.
Return procedure for UPC29M08HF-AZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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