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Renesas UPC2925HB-AZ
- Part No.:
- UPC2925HB-AZ
- Manufacturer:
- Renesas
- Package:
- -
- Datasheet:
-
UPC2925HB-AZ.pdf
- Description:
- IC REG LINEAR FIXED LDO REG
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Inventory:6,591
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Product details
Overview
UPC2925HB-AZ from Renesas Electronics is a three-terminal low dropout linear voltage regulator delivering a fixed 2.5 V output at up to 1 A, using a PNP output stage to achieve 0.7 V typical dropout at full load. It integrates on-chip thermal shutdown, over-current limiting, safe operating area (SOA) protection, and saturation protection for low-input-voltage startup-enabling reliable power regulation in space-constrained industrial and consumer systems.
For engineers reviewing the UPC2925HB-AZ datasheet, UPC2925HB-AZ pinout, UPC2925HB-AZ application, or UPC2925HB-AZ equivalent, key selection considerations include its SC-64 (MP-3) package with isolated GND terminals, ±2% output voltage accuracy across temperature, 40 µVr.m.s. output noise, and compatibility with low-ESR ceramic or electrolytic output capacitors in compact DC/DC post-regulation and microcontroller core supply designs.
Technical Context
The UPC2925HB-AZ employs a PNP pass transistor architecture that enables low dropout operation without requiring an external NPN driver or bootstrap circuitry. Its internal error amplifier compares the regulated output against a precision bandgap reference, while the start-up circuit ensures stable biasing even when input voltage rises slowly.
Thermal protection activates at 150°C junction temperature, forcing output shutdown until cooldown; SOA protection prevents destructive second breakdown during transient overload or short-circuit events. The device operates within −30°C to +85°C ambient and supports input voltages from 3.5 V to 16 V, with quiescent current scaling from 2 mA (no load) to 60 mA (1 A load).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5 V ±2% over 0°C–125°C junction range-ensures stable MCU core or analog sensor rail without external feedback. |
| Dropout Voltage | 0.7 V typical at 1 A load-allows operation from 3.2 V input, enabling use with single-cell Li-ion or 3.3 V pre-regulated supplies. |
| Output Current | 1 A continuous-sufficient for powering ARM Cortex-M microcontrollers, FPGA I/O banks, or small logic subsystems. |
| Quiescent Current | 2–60 mA depending on load-low no-load draw extends battery life; increases predictably under load for accurate power budgeting. |
| Thermal Resistance | 12.5°C/W (junction-to-case)-requires minimal heatsinking when mounted on 1-in² 2-oz copper; derates to ~0.8 A at 85°C ambient without heatsink. |
| Noise & Ripple Rejection | 40 µVr.m.s. (10 Hz–100 kHz); 45–60 dB @ 120 Hz-suppresses switching regulator ripple and preserves signal integrity in ADC/DAC circuits. |
| Protection Features | Thermal shutdown, SOA protection, over-current limit, and input-under-voltage saturation guard-eliminates need for external fault-handling circuitry. |
Pinout & Package
UPC2925HB-AZ uses the SC-64 (MP-3) surface-mount package: 4-pin, GND-isolated layout with exposed thermal fin (Pin 4). Pins 2 and 4 are internally connected as common GND but electrically isolated from the die substrate-critical for noise-sensitive analog sections.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: INPUT | Unregulated input supply connection | Accepts 3.5–16 V; requires ≥0.1 µF bypass capacitor placed ≤2 cm away to prevent oscillation. |
| 2: GND | Signal ground reference | Low-impedance return path for error amplifier and reference; must be routed separately from high-current GND paths. |
| 3: OUTPUT | Regulated 2.5 V output | Delivers up to 1 A; requires ≥10 µF low-ESR output capacitor adjacent to pin for stability and load step response. |
| 4: GND (Fin) | Thermal and power ground | Exposed metal pad for PCB thermal conduction; must be soldered to ≥1-in² copper pour for rated current capability. |
Key Features
| Feature | Design Value |
|---|---|
| Low dropout architecture | 0.7 V TYP. at 1 A enables operation from 3.2 V input-ideal for battery-powered systems with tight voltage margins. |
| Integrated SOA protection | Prevents second breakdown during output short-circuit or capacitive load surge-removes need for external current-sense resistors. |
| Pb-free construction (-AZ suffix) | RoHS-compliant external electrodes with Sn100% plating-supports lead-free reflow per IR60-00-3 profile (260°C peak). |
| Stable with ceramic output caps | Designed for ≥10 µF low-ESR ceramics-reduces board area vs. electrolytics and improves transient response in digital loads. |
| Input under-voltage saturation guard | Limits quiescent current to ≤80 mA during startup below 3.5 V-prevents excessive input supply loading during brown-out conditions. |
Applications
| Industrial PLC I/O Modules | Portable Medical Sensors |
|---|---|
Use Scenario: Powering isolated analog front-end circuitry (op-amps, ADCs) in DIN-rail-mounted programmable logic controllers. IC Role / Device Role / Timing Role: Primary 2.5 V reference rail regulator with low noise and high PSRR to preserve measurement accuracy. Use Value: 40 µVr.m.s. noise and 60 dB ripple rejection at 120 Hz minimize offset drift and quantization errors in 16-bit ADC conversions. |
Use Scenario: Supplying ultra-low-noise bias voltage to photodiode transimpedance amplifiers in handheld pulse oximeters. IC Role / Device Role / Timing Role: Low-noise post-regulator following a switching converter, ensuring clean analog signal chain operation. Use Value: ±2% output tolerance and −0.5 mV/°C tempco maintain calibration stability across patient body temperature ranges (32–42°C). |
| Embedded Audio DAC Supplies | Automotive Body Control Units |
Use Scenario: Generating clean 2.5 V reference for stereo audio DACs in automotive infotainment head units. IC Role / Device Role / Timing Role: Dedicated low-noise analog supply decoupled from noisy digital domains via physical PCB separation. Use Value: SC-64 package's isolated GND pins allow separate analog/digital ground routing-reducing crosstalk-induced audible artifacts. |
Use Scenario: Regulating 2.5 V for LIN bus transceiver logic and EEPROM interface in door module ECUs. IC Role / Device Role / Timing Role: Secondary LDO supplying non-critical logic rails where cost, footprint, and thermal robustness outweigh ultra-low noise needs. Use Value: 12.5°C/W Rth(j-c) and built-in thermal shutdown enable reliable operation in sealed enclosures up to 85°C ambient. |
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 |
|---|---|---|---|
| TLV70225DBVR | N-channel MOSFET pass element; 0.3 V dropout at 300 mA; 30 µVr.m.s. noise; SOT-23-5 package. | Lower noise and smaller footprint-but rated only for 300 mA; lacks SOA and saturation protection. | Select TLV70225DBVR only for <300 mA loads where ultra-low noise and size dominate; avoid in high-current or fault-prone environments. |
| TPS7A1625DRBR | P-channel MOSFET pass; 0.25 V dropout at 150 mA; 15 µVr.m.s. noise; 8-pin SON package with enable/PG. | Higher precision (±0.5%), lower noise, and power-good signaling-but limited to 150 mA and higher minimum input voltage (2.2 V). | Choose TPS7A1625DRBR for precision analog rails <150 mA; UPC2925HB-AZ remains preferred for 1 A industrial loads with robust fault handling. |
Compared with TLV70225DBVR and TPS7A1625DRBR, UPC2925HB-AZ uniquely delivers 1 A continuous current with integrated SOA, thermal, and saturation protection in a thermally efficient SC-64 package-making it the only option among the three suitable for unattended industrial loads requiring sustained high-current regulation and intrinsic fault resilience.
Availability
UPC2925HB-AZ is available at Aetrix Electronics and suitable for industrial automation, portable medical instrumentation, embedded audio systems, and automotive body electronics requiring stable component supply with long-term lifecycle support.
Supply support for UPC2925HB-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 specializing in microcontrollers, analog power devices, and embedded solutions for industrial, automotive, and IoT applications.
UPC2925HB-AZ belongs to Renesas' legacy bipolar analog LDO family designed for cost-sensitive, high-reliability linear regulation in standard-grade applications-including industrial controls, test equipment, and consumer electronics.
FAQ
What is the maximum input voltage rating for UPC2925HB-AZ?
The absolute maximum input voltage for UPC2925HB-AZ is 20 V, but the recommended operating range is 3.5 V to 16 V. Exceeding 16 V may trigger internal protection or accelerate parametric drift; sustained operation above 16 V voids reliability guarantees per Renesas datasheet G14983EJ5V0DS.
Does UPC2925HB-AZ require an input bypass capacitor?
Yes, UPC2925HB-AZ requires a minimum 0.1 µF ceramic capacitor between INPUT and GND, placed within 1–2 cm of the IC. This prevents parasitic oscillation caused by trace inductance; film or high-quality ceramic capacitors are recommended-laminated ceramics must meet the 0.1 µF minimum across operating voltage and temperature.
Can UPC2925HB-AZ be used with ceramic output capacitors?
Yes, UPC2925HB-AZ is stable with ≥10 µF low-ESR ceramic output capacitors. Unlike many older LDOs, its internal compensation supports ceramic types without series resistance-improving transient response and reducing board area versus electrolytic alternatives.
What thermal performance can be expected from UPC2925HB-AZ in a typical PCB layout?
With the SC-64 package's exposed GND fin soldered to a 1-in² 2-oz copper pour, UPC2925HB-AZ achieves ~12.5°C/W junction-to-board thermal resistance. At 85°C ambient and 1 A load, junction temperature reaches ~105°C-well within the 125°C max operating limit, leaving 20°C safety margin before thermal shutdown activates.
Is UPC2925HB-AZ qualified for automotive applications?
No, UPC2925HB-AZ is rated for "Standard" quality grade per Renesas classification-intended for computers, office equipment, and industrial robots-not automotive or safety-critical systems. It lacks AEC-Q100 qualification and is not recommended for under-hood or airbag-related functions.
UPC2925HB-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:
- -
UPC2925HB-AZ FAQ
1.How can I place an order for UPC2925HB-AZ through Aetrix?
Please submit a Request for Quotation (RFQ) for UPC2925HB-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 UPC2925HB-AZ reliable?
The price and inventory of UPC2925HB-AZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UPC2925HB-AZ is usually 5 days.
3.What payment methods are accepted for UPC2925HB-AZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPC2925HB-AZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UPC2925HB-AZ?
UPC2925HB-AZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UPC2925HB-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 UPC2925HB-AZ?
For technical support, including UPC2925HB-AZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPC2925HB-AZ requirements.
6.How does Aetrix verify that UPC2925HB-AZ is sourced from the original manufacturer or authorized distributors?
All UPC2925HB-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 UPC2925HB-AZ meets industry standards.
7.What is the process for return or replacement of UPC2925HB-AZ?
All UPC2925HB-AZ units undergo pre-shipment inspection (PSI). If there is an issue with UPC2925HB-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 UPC2925HB-AZ part is unused and in its original packaging.
Return procedure for UPC2925HB-AZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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