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Renesas UPC2909HB-AZ
- Part No.:
- UPC2909HB-AZ
- Manufacturer:
- Renesas
- Package:
- -
- Datasheet:
-
UPC2909HB-AZ.pdf
- Description:
- IC REG LINEAR FIXED LDO REG
- Quantity:
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Inventory:2,191
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Product details
Overview
UPC2909HB-AZ from Renesas Electronics is a three-terminal low dropout positive voltage regulator with PNP output transistor, delivering 1 A output current at 9.0 V nominal output with 0.7 V typical dropout voltage. It features on-chip over-current, thermal shutdown, and safe operating area protection, and is used in industrial power supplies requiring stable low-noise 9 V bias for analog circuitry or microcontroller peripherals.
For engineers reviewing the UPC2909HB-AZ datasheet, UPC2909HB-AZ pinout, UPC2909HB-AZ application, or UPC2909HB-AZ equivalent, key selection criteria include dropout voltage at full load, thermal resistance (12.5°C/W junction-to-case), quiescent current behavior across input voltage range (11–30 mA startup, 27–60 mA under load), and Pb-free SC-64 (MP-3) package compatibility with wave-soldering processes.
Technical Context
The UPC2909HB-AZ implements a PNP-based LDO architecture with internal reference voltage, error amplifier, drive circuit, and multiple protection blocks including saturation protection, thermal shutdown, and safe operating area (SOA) monitoring. Its regulation loop maintains output stability across 10–18 V input range while sourcing up to 1 A.
Unlike NPN-based regulators, this device achieves lower dropout by using a PNP pass transistor, enabling operation with VIN as low as 10 V for 9 V output. Protection circuits activate independently: thermal shutdown triggers above 150°C junction temperature, while SOA protection limits instantaneous power dissipation during transient overload conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 9.0 V ±5% (8.55–9.45 V over –30°C to +125°C, 0–1 A load) |
| Dropout Voltage | 0.7 V typical at 1 A (enables 10 V minimum input for stable 9 V output) |
| Output Current | 1.0 A continuous (peak up to 3.0 A for short durations) |
| Quiescent Current | 27–60 mA at 1 A load (low bias consumption supports efficiency-critical designs) |
| Ripple Rejection | 41–58 dB at 120 Hz (effective AC line noise suppression) |
| Thermal Resistance | 12.5°C/W junction-to-case (requires heatsinking for >1 W continuous dissipation) |
| Operating Temperature | –30°C to +85°C ambient (junction rated to +125°C continuous) |
Pinout & Package
UPC2909HB-AZ uses the SC-64 (MP-3) surface-mount package - a 4-pin, isolated plastic case with integrated metal fin for thermal conduction. Pin 2 and Pin 4 are internally connected as common GND (fin), and Pin 2 is physically cut per datasheet Note 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | INPUT | Unregulated DC input (10–18 V); requires ≥0.1 µF ceramic bypass capacitor close to pin |
| 2 | GND | Ground reference; physically cut but electrically tied to Pin 4 fin |
| 3 | OUTPUT | Regulated 9.0 V output; requires ≥47 µF low-impedance electrolytic capacitor |
| 4 | GND (Fin) | Thermal and electrical ground plane; must be soldered to PCB copper pour for heat dissipation |
Key Features
| Feature | Design Value |
|---|---|
| Low dropout operation | 0.7 V typical at 1 A enables high-efficiency 9 V regulation from 10 V rail |
| Integrated SOA protection | Prevents destructive second breakdown during transient overloads without external components |
| Pb-free construction | AZ suffix confirms RoHS-compliant external electrodes (no lead in terminations) |
| Wave-solder compatible | Rated for 260°C peak wave-solder temperature (10 s max), supporting automated assembly |
| Stable with standard capacitors | Works with 0.1 µF ceramic input and 47 µF electrolytic output caps - no special ESR requirements |
Applications
| Industrial Sensor Signal Conditioning | Embedded Microcontroller Power Rail |
|---|---|
Use Scenario: Providing clean, stable 9 V supply to op-amp front-ends in factory-floor pressure/temperature transmitters operating at –25°C to +70°C. IC Role / Device Role / Timing Role: Primary voltage regulator supplying analog signal chain; not involved in timing functions. Use Value: 0.7 V dropout allows use of 12 V system rail without excessive heat generation; 41 dB ripple rejection suppresses switching noise from adjacent DC/DC converters. | Use Scenario: Powering 9 V-tolerant peripherals (ADC reference, CAN transceiver, EEPROM) in an industrial PLC module with shared 12 V input bus. IC Role / Device Role / Timing Role: Local point-of-load regulator ensuring stable 9 V for mixed-signal ICs; independent of system clock domains. Use Value: On-chip thermal shutdown prevents latch-up during ambient temperature spikes; SC-64 package enables compact layout with direct fin-to-PCB thermal path. |
| Test Equipment Bias Supply | Legacy Industrial Control Interface |
Use Scenario: Generating calibrated 9 V reference for benchtop multimeter analog front-end calibration circuitry. IC Role / Device Role / Timing Role: Precision DC bias source; output voltage accuracy (±5%) and low tempco (1.0 mV/°C) support metrology-grade stability. Use Value: 155 µVrms output noise ensures minimal contribution to measurement uncertainty; load regulation ≤90 mV over 0–1 A maintains accuracy across varying DUT loads. | Use Scenario: Replacing aging 7809 regulators in legacy motor drive control boards where 9 V powers optocoupler isolators and gate drivers. IC Role / Device Role / Timing Role: Drop-in functional replacement for through-hole 78xx series; delivers same output voltage with improved thermal performance. Use Value: SC-64 footprint allows retrofit into existing SMT layouts; 12.5°C/W Rth(j-c) reduces need for oversized heatsinks compared to TO-220 alternatives. |
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 |
|---|---|---|---|
| UPC2909HF-AZ | Same electrical specs; uses isolated TO-220 (MP-45G) package with higher 7°C/W Rth(j-c) | Better suited for high-power, heatsink-mounted designs; incompatible with SC-64 footprint | Select when board-level thermal management favors bolt-on heatsinks over PCB copper pour |
| TLV1117-90CDR | Lower 1.2 V dropout (at 800 mA), 800 mA max output, SO-8 package, 60 µVrms noise | Not suitable for 1 A continuous loads; optimized for ultra-low-noise, low-power logic rails | Choose only if load current ≤800 mA and noise <60 µVrms is mandatory; not a drop-in replacement |
Compared with UPC2909HF-AZ, the UPC2909HB-AZ offers identical regulation performance in a smaller SC-64 package with lower thermal conductivity - requiring careful PCB copper design. Versus TLV1117-90CDR, it delivers higher current and better load regulation but with higher noise and dropout, making it appropriate for robust industrial biasing rather than precision analog rails.
Availability
UPC2909HB-AZ is available at Aetrix Electronics and suitable for industrial sensor modules, embedded controller power rails, and test equipment bias supplies requiring stable component supply with RoHS compliance and wave-solder process support.
Supply support for UPC2909HB-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 via merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, and power management ICs for industrial and automotive markets.
The µPC29xx series was designed specifically for industrial power conversion applications demanding reliable, thermally robust, low-dropout regulation in space-constrained environments - emphasizing ruggedness, integrated protection, and Pb-free manufacturability.
FAQ
What is the maximum input voltage rating for the UPC2909HB-AZ?
The UPC2909HB-AZ has an absolute maximum input voltage of 20 V. However, its recommended operating input voltage range is 10 V to 18 V for stable 9.0 V output at full 1 A load. Exceeding 18 V risks exceeding thermal limits or triggering internal protection circuits, especially at elevated ambient temperatures.
Does the UPC2909HB-AZ require external capacitors, and what values are specified?
Yes, the UPC2909HB-AZ requires two external capacitors: a minimum 0.1 µF ceramic capacitor (CIN) placed directly at the INPUT pin to prevent parasitic oscillation, and a minimum 47 µF low-impedance electrolytic capacitor (COUT) at the OUTPUT pin to ensure stability and improve load regulation. These values are specified in the datasheet's Typical Connection diagram and must be adhered to for reliable operation.
How does the thermal protection in the UPC2909HB-AZ operate?
The UPC2909HB-AZ incorporates internal thermal shutdown that activates when the junction temperature exceeds +150°C. Upon activation, the output is disabled until the die cools below the hysteresis threshold (~135°C). This protection is independent of load current and responds solely to die temperature, safeguarding the device during sustained overload or inadequate heatsinking.
Can the UPC2909HB-AZ be used as a direct replacement for a standard 7809 regulator?
No - the UPC2909HB-AZ is not a pin-compatible replacement for the 7809. While both deliver 9 V, the UPC2909HB-AZ uses a 4-pin SC-64 package with Pin 2 (GND) and Pin 4 (GND fin) tied together, whereas the 7809 uses a 3-pin TO-220 configuration. Electrical differences include lower dropout (0.7 V vs. ~2 V) and different capacitor requirements, necessitating PCB and schematic revision.
What does the "-AZ" suffix indicate in UPC2909HB-AZ?
The "-AZ" suffix in UPC2909HB-AZ indicates that the device is Pb-free, with no lead content in the external electrode terminations. This complies with RoHS Directive 2011/65/EU and supports environmentally compliant manufacturing. The package remains SC-64 (MP-3), and all electrical specifications match the non-AZ variant.
UPC2909HB-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:
- -
UPC2909HB-AZ FAQ
1.How can I place an order for UPC2909HB-AZ through Aetrix?
Please submit a Request for Quotation (RFQ) for UPC2909HB-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 UPC2909HB-AZ reliable?
The price and inventory of UPC2909HB-AZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UPC2909HB-AZ is usually 5 days.
3.What payment methods are accepted for UPC2909HB-AZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPC2909HB-AZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UPC2909HB-AZ?
UPC2909HB-AZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UPC2909HB-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 UPC2909HB-AZ?
For technical support, including UPC2909HB-AZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPC2909HB-AZ requirements.
6.How does Aetrix verify that UPC2909HB-AZ is sourced from the original manufacturer or authorized distributors?
All UPC2909HB-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 UPC2909HB-AZ meets industry standards.
7.What is the process for return or replacement of UPC2909HB-AZ?
All UPC2909HB-AZ units undergo pre-shipment inspection (PSI). If there is an issue with UPC2909HB-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 UPC2909HB-AZ part is unused and in its original packaging.
Return procedure for UPC2909HB-AZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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