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Renesas UPC29M08HB-AY
- Part No.:
- UPC29M08HB-AY
- Manufacturer:
- Renesas
- Package:
- -
- Datasheet:
-
UPC29M08HB-AY.pdf
- Description:
- IC REG LINEAR FIXED LDO REG
- Quantity:
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Inventory:2,538
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Product details
Overview
UPC29M08HB-AY 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 under varying load and input conditions.
For engineers reviewing the UPC29M08HB-AY datasheet, UPC29M08HB-AY pinout, UPC29M08HB-AY application, or UPC29M08HB-AY equivalent, key selection criteria include dropout voltage at full load, thermal resistance (Rth(J-C) = 12.5°C/W), SC-64 (MP-3) package compatibility, and Pb-free Sn100% plating compliance for lead-free assembly.
Technical Context
The UPC29M08HB-AY employs a PNP pass transistor architecture enabling low dropout operation-critical for systems where input-to-output voltage margin is constrained. Its internal circuit includes start-up logic, error amplifier, drive stage, saturation protection, and dual safety circuits: thermal shutdown (TJ > 150°C) and SOA protection.
It operates within –30°C to +85°C ambient temperature and supports input voltages from 9 V to 18 V. The device requires external 0.1 µF CIN (near INPUT pin) and ≥47 µF COUT (near OUTPUT pin) for stability, with Schottky diode D2 mandatory if OUTPUT can fall below GND.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 8.0 V ±4% (7.6–8.4 V over 0–0.5 A, 0°C–125°C junction) |
| Dropout Voltage | 0.5 V typical at 0.5 A load - enables regulation with only 0.5 V headroom above output |
| Max Output Current | 0.5 A continuous - sufficient for powering microcontrollers, sensors, and analog front-ends |
| Thermal Resistance (Junction-to-Case) | 12.5°C/W - defines heatsink requirement when dissipating >1 W at TC = 25°C |
| Quiescent Current | 2.0–4.0 mA at zero load; ≤30 mA at 0.5 A - minimizes no-load power loss in battery-backed systems |
| Ripple Rejection | 42–58 dB at 120 Hz (9–18 V input) - suppresses AC line noise on DC rails |
| Output Noise | 150 µVr.m.s. (10 Hz–100 kHz) - suitable for noise-sensitive analog signal chains |
Pinout & Package
UPC29M08HB-AY uses the SC-64 (MP-3) surface-mount package: 4-pin, isolated tab (GND fin), 7.0 mm × 5.0 mm footprint, 2.3 mm height. Pin 2 is cut; Pins 2 and 4 are internally connected to common GND (fin).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: INPUT | Regulator input supply connection | Accepts 9–18 V DC; must be decoupled with ≥0.1 µF capacitor placed ≤2 cm away |
| 2: GND (cut) | Ground reference (mechanically removed) | No electrical connection; physical pin omitted per MP-3 mechanical spec |
| 3: OUTPUT | Regulated 8.0 V output node | Delivers up to 0.5 A; requires ≥47 µF low-impedance electrolytic capacitor nearby |
| 4: GND (Fin) | Thermal and electrical ground plane | Primary heat path and return path; must be soldered to large copper pour for thermal management |
Key Features
| Feature | Design Value |
|---|---|
| Low dropout voltage | 0.5 V typical at 0.5 A enables use in 9 V battery-powered systems down to ~8.5 V before dropout |
| Integrated thermal shutdown | Activates at TJ > 150°C and auto-recovers after cooldown - eliminates need for external thermal monitoring |
| SOA protection | Prevents destructive second breakdown during transient overload or short-circuit events |
| Pb-free Sn100% plating | Complies with RoHS Directive; compatible with standard lead-free reflow profiles (peak ≤260°C) |
| High ripple rejection | ≥42 dB at 120 Hz allows direct use after rectified AC without additional LC filtering |
Applications
| Industrial PLC I/O Module | Automotive Body Control Unit (BCU) |
|---|---|
Use Scenario: Powering 8 V analog sensor interfaces and digital isolators in DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: Primary 8 V local regulator supplying ADC references, op-amps, and optocoupler LEDs. Use Value: 0.5 V dropout ensures stable 8 V output even as 12 V bus sags to 8.5 V during cranking or brownout. |
Use Scenario: Providing regulated 8 V rail for LIN transceivers and window motor drivers in non-safety-critical vehicle subsystems. IC Role / Device Role / Timing Role: Local LDO for LIN physical layer ICs requiring clean, low-noise 8 V supply. Use Value: 150 µVr.m.s. output noise prevents bit errors in LIN communication under EMI stress. |
| Medical Diagnostic Handheld | Test & Measurement Signal Generator |
Use Scenario: Supplying precision 8 V bias to photodiode transimpedance amplifiers in portable blood oximeters. IC Role / Device Role / Timing Role: Low-noise analog supply rail decoupled from noisy digital domains. Use Value: 42–58 dB ripple rejection suppresses switching noise from adjacent DC/DC converters. |
Use Scenario: Generating stable 8 V reference for DAC output buffers in benchtop arbitrary waveform generators. IC Role / Device Role / Timing Role: Precision voltage source for analog output stage calibration and offset trimming. Use Value: ±4% output tolerance (7.6–8.4 V) and <±0.7 mV/°C drift ensure stable gain accuracy across temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-dropout linear regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| UPC29M08HF | Same die, isolated TO-220 (MP-45G) package; Rth(J-C) = 7°C/W; higher power dissipation capability (15 W vs. 10 W) | Better suited for high-power, through-hole designs with heatsinking; not surface-mount compatible | Select UPC29M08HF for >1 W continuous dissipation or legacy through-hole layouts. |
| TLV1117-80CDR | CMOS-based LDO; 1.2 V dropout at 0.8 A; lower quiescent current (5–10 mA); different pinout (SOT-223) | Lacks SOA and thermal shutdown redundancy; requires external protection circuitry for robust industrial use | Choose TLV1117-80CDR only for cost-sensitive, low-power applications where internal protection is secondary. |
Compared with UPC29M08HF, UPC29M08HB-AY offers superior PCB space efficiency and lead-free assembly compatibility but lower thermal headroom; versus TLV1117-80CDR, it delivers higher fault resilience at the cost of higher quiescent current and larger dropout.
Availability
UPC29M08HB-AY is available at Aetrix Electronics and suitable for industrial control systems, automotive body electronics, and medical handheld devices requiring stable component supply with RoHS-compliant, Sn100% plating and SC-64 package compatibility.
Supply support for UPC29M08HB-AY 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 via merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, and power management ICs.
The µPC29Mxx series was designed specifically for industrial and automotive applications needing rugged, thermally protected LDOs with low dropout and wide input range - targeting systems where reliability under thermal stress is critical.
FAQ
What is the maximum input voltage rating for the UPC29M08HB-AY?
The UPC29M08HB-AY has an absolute maximum input voltage of 20 V. However, its recommended operating input range is 9 V to 18 V per the datasheet's Recommended Operating Conditions table. Exceeding 18 V risks violating safe operating area limits and may trigger internal protection circuits prematurely.
Does the UPC29M08HB-AY require external capacitors, and what values are mandatory?
Yes, the UPC29M08HB-AY requires two external capacitors: ≥0.1 µF ceramic CIN placed within 1–2 cm of the INPUT pin to prevent parasitic oscillation, and ≥47 µF low-impedance electrolytic COUT near the OUTPUT pin to ensure stability and improve load regulation. Omitting either compromises regulation performance and may cause instability.
How does the thermal shutdown behavior of the UPC29M08HB-AY work?
The UPC29M08HB-AY features internal thermal shutdown that activates when junction temperature exceeds 150°C. The output is disabled until the die cools sufficiently - typically by >25°C - then automatically resumes regulation. This cycle protects against permanent damage during sustained overload or inadequate heatsinking.
Can the UPC29M08HB-AY be used in automotive applications?
Yes, the UPC29M08HB-AY is rated for –30°C to +85°C ambient operation and meets Renesas' "Standard" quality grade, making it suitable for non-safety-critical automotive applications such as body control units, lighting modules, and infotainment peripherals - provided input transients and layout meet AEC-Q100 system-level requirements.
What is the significance of the "-AY" suffix in UPC29M08HB-AY?
The "-AY" suffix denotes a Pb-free version with 100% tin (Sn100%) plating on external electrodes, compliant with EU RoHS Directive. It supports lead-free reflow soldering with peak temperatures up to 260°C and differs from "-AZ" (Pb-free, unspecified plating) and standard "-HB" (lead-containing) variants.
UPC29M08HB-AY 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:
- -
UPC29M08HB-AY FAQ
1.How can I place an order for UPC29M08HB-AY through Aetrix?
Please submit a Request for Quotation (RFQ) for UPC29M08HB-AY 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 UPC29M08HB-AY reliable?
The price and inventory of UPC29M08HB-AY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UPC29M08HB-AY is usually 5 days.
3.What payment methods are accepted for UPC29M08HB-AY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPC29M08HB-AY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UPC29M08HB-AY?
UPC29M08HB-AY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UPC29M08HB-AY 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 UPC29M08HB-AY?
For technical support, including UPC29M08HB-AY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPC29M08HB-AY requirements.
6.How does Aetrix verify that UPC29M08HB-AY is sourced from the original manufacturer or authorized distributors?
All UPC29M08HB-AY 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 UPC29M08HB-AY meets industry standards.
7.What is the process for return or replacement of UPC29M08HB-AY?
All UPC29M08HB-AY units undergo pre-shipment inspection (PSI). If there is an issue with UPC29M08HB-AY, 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 UPC29M08HB-AY part is unused and in its original packaging.
Return procedure for UPC29M08HB-AY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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