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Renesas RAA214035GNP#MC0
- Part No.:
- RAA214035GNP#MC0
- Manufacturer:
- Renesas
- Package:
- 20-VFQFN Exposed Pad
- Datasheet:
-
RAA214035GNP#MC0.pdf
- Description:
- 2A LOW NOISE LDO, 20 LEAD 3.5X3.
- Quantity:
- Payment:
- Shipping:
Inventory:3,394
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Product details
Overview
RAA214035GNP#MC0 from Renesas Electronics is an ultra-low-noise, high-PSRR, 3A NMOS LDO regulator with 180mV dropout at full load and 7µVRMS output noise. It operates from 1.1V input (with BIAS) to 6.5V, supports programmable output from 0.5V to 3.65V via internal voltage-set pins in 50mV steps, and delivers ±1% output accuracy. It is engineered for powering noise-sensitive analog and RF circuitry in radar, medical imaging, and precision instrumentation.
For engineers reviewing the RAA214035GNP#MC0 datasheet, RAA214035GNP#MC0 pinout, RAA214035GNP#MC0 application, or RAA214035GNP#MC0 equivalent, key selection criteria include its BIAS-enabled sub-1.4V operation, single 1µF CNR/SS capacitor requirement for ultra-low noise, 20-pin QFN thermal performance (θJA = 42°C/W), and integrated power-good indication with hysteresis.
Technical Context
The RAA214035GNP#MC0 employs an NMOS pass transistor architecture enabling low dropout and fast transient response. Its dual-supply design uses separate VIN and VBIAS rails: VBIAS ≥3V enables operation down to 1.1V VIN while improving PSRR and reducing thermal stress. The internal feedback network-comprising six voltage-set pins (50mV–1.6V) and a 0.5V reference-eliminates external resistors for outputs ≤3.65V.
It integrates UVLO with hysteresis on both VIN and VBIAS, overtemperature shutdown at 165°C with 15°C hysteresis, and internal current limiting at 5.5A. Power-good (PG) asserts open-drain when VOUT reaches within –12% of target, requiring only a 10kΩ pull-up. Start-up time is under 800µs with 1µF CNR/SS.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Output Current | 3A continuous - supports high-current analog rails without external current sharing |
| Dropout Voltage | 180mV at 3A with BIAS - enables stable 0.5V output from 1.1V input, critical for ultra-low-voltage SoC cores |
| Output Noise | 7µVRMS (10Hz–100kHz) - meets stringent requirements for RF synthesizers and ADC/DAC reference supplies |
| PSRR | 35dB at 100kHz (with BIAS) - suppresses switching noise from upstream DC/DC converters in mixed-signal systems |
| Output Accuracy | ±1% (0.8V–3.65V) - ensures tight regulation for precision sensor biasing and PLL VCO supplies |
| Input Range | 1.1V–6.5V with BIAS; 1.4V–6.5V without - supports direct battery input (e.g., single LiFePO₄) or post-regulation |
| Package | 20-pin 3.5mm×3.5mm QFN with EPAD - provides low θJC (4.5°C/W) for thermally constrained PCB layouts |
Pinout & Package
RAA214035GNP#MC0 is housed in a 20-lead, 3.5mm × 3.5mm, 0.5mm pitch QFN package with exposed thermal pad (EPAD). The package supports high-power dissipation (θJA = 42°C/W, θJC = 4.5°C/W) and requires soldering the EPAD directly to the PCB ground plane for optimal thermal and electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VOUT (1,19,20) | Power output terminals | Three parallel output pins reduce IR drop and improve current sharing; must be tied to same copper plane with ≥22µF ceramic cap |
| SNS (2) | Output voltage sense | Connected to VOUT pins when using internal voltage-set pins; left floating when external FB divider is used |
| FB (3) | Feedback input | Internally referenced to 0.5V; accepts either internal resistor ladder (via 50mV–1.6V pins) or external divider for 0.5–5.1V range |
| PG (4) | Power-good open-drain output | Signals system controller when VOUT is within –12% of target; requires external 10kΩ pull-up for logic HIGH |
| 50mV–1.6V (5,6,7,9,10,11) | Output voltage programming inputs | Each grounded pin adds its label value to base 0.5V; all floating = 0.5V, all grounded = 3.65V |
| GND (8,18) | Ground reference | Must connect to PCB ground plane and EPAD; dual pins reduce ground impedance for high-frequency stability |
| VBIAS (12) | Bias supply input | Enables 1.1V VIN operation and improves PSRR/noise; requires ≥1µF bypass cap to GND |
| CNR/SS (13) | Noise reduction & soft-start | 1µF cap achieves 7µVRMS noise and controls inrush; larger values increase soft-start time |
| EN (14) | Enable control | Active-high; must not float - tie to VIN for automatic startup; 1.0V threshold with 100mV hysteresis |
| VIN (15,16,17) | Input power terminals | Three parallel input pins minimize trace inductance; require ≥10µF ceramic cap to GND near package |
| EPAD | Thermal & electrical ground | Exposed pad must be soldered to solid ground plane and connected to GND pins 8 and 18 |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low noise without feed-forward cap | 7µVRMS achieved with single 1µF CNR/SS - eliminates layout complexity and saves board space vs. traditional LDOs |
| Programmable output via pins (no resistors) | 0.5V–3.65V in 50mV steps using six dedicated voltage-set pins - removes external feedback network and associated tolerance errors |
| Sub-1.4V operation with BIAS | 1.1V minimum VIN enabled by independent 3–6.5V VBIAS rail - supports next-gen low-voltage processors and sensors |
| Integrated protection suite | UVLO on VIN/VBIAS with hysteresis, 165°C thermal shutdown with 15°C hysteresis, and 5.5A current limit - reduces need for external fault management |
| Fast start-up & load transient response | <800µs start-up with 1µF CNR/SS; excellent load step recovery due to NMOS pass device and optimized error amplifier - stabilizes sensitive analog rails rapidly |
Applications
| Radar Front-End Power | Medical Imaging Sensor Bias |
|---|---|
Use Scenario: Supplying low-noise bias to GaAs/GaN RF amplifiers and ADC clock buffers in automotive 77GHz radar modules. IC Role / Device Role / Timing Role: Primary LDO delivering clean 1.8V/3.3V rails to RF signal chain components. Use Value: 7µVRMS noise and 35dB PSRR at 100kHz prevent phase noise degradation in VCOs and spurious artifacts in digitized echo signals. |
Use Scenario: Providing regulated, ultra-stable voltage to CMOS image sensor analog front-ends and CT/X-ray detector ASICs. IC Role / Device Role / Timing Role: Precision analog supply for pixel readout circuits and correlated double sampling blocks. Use Value: ±1% output accuracy and 180mV dropout enable accurate sensor gain calibration and low dark-current operation at 1.2V. |
| Portable Test Equipment | High-Fidelity Audio DAC Supply |
Use Scenario: Powering 24-bit delta-sigma ADCs and precision op-amps in handheld multimeters and spectrum analyzers. IC Role / Device Role / Timing Role: Low-drift reference voltage source for measurement signal conditioning paths. Use Value: 7µVRMS noise floor preserves ENOB in high-resolution measurements; 1.1V–6.5V input accommodates single-cell Li-ion battery operation. |
Use Scenario: Delivering ultra-clean 3.3V/5.0V to audio DACs, headphone amplifiers, and digital filter ICs in premium portable players. IC Role / Device Role / Timing Role: Dedicated analog supply isolating sensitive audio circuitry from noisy digital domains. Use Value: 35dB PSRR at 100kHz suppresses switching noise from USB-C PD chargers; 0.5V programmability supports custom low-voltage DAC cores. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7A8300RGRT | 3A, 1.1V–6.5V input, 7µVRMS noise, but requires external feedback resistors for all output voltages; no BIAS pin for sub-1.4V operation | Lacks integrated voltage-set pins and BIAS capability - less suitable for ultra-low-VIN designs or resistor-free layout | Choose when external resistor trimming is acceptable and BIAS functionality is unnecessary |
| NCP1117ST50T3G | 1A max output, 1.2V–20V input, 42µVRMS noise, TO-220/SOT-223 package - significantly higher noise and lower current capability | Not viable for 3A, ultra-low-noise applications; limited to cost-sensitive, non-critical analog rails | Select only for low-current, non-noise-sensitive legacy designs where thermal budget allows TO-220 mounting |
Compared with TPS7A8300RGRT and NCP1117ST50T3G, the RAA214035GNP#MC0 uniquely combines 3A current, 7µVRMS noise, BIAS-enabled 1.1V operation, and resistorless 0.5–3.65V programming - making it the only option meeting full specification for next-generation radar and medical sensor power rails.
Availability
RAA214035GNP#MC0 is available at Aetrix Electronics and suitable for radar front-end power, medical imaging sensor bias, and portable test equipment requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for RAA214035GNP#MC0 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 is a global semiconductor leader specializing in microcontrollers, analog power, and connectivity solutions for automotive, industrial, and IoT markets.
The RAA214035GNP#MC0 belongs to Renesas' Ultra-Low-Noise LDO family, designed specifically for powering noise-critical analog and RF subsystems in advanced driver-assistance systems (ADAS), medical diagnostics, and high-precision instrumentation.
FAQ
What is the minimum input voltage supported by the RAA214035GNP#MC0?
The RAA214035GNP#MC0 supports a minimum input voltage of 1.1V when the VBIAS pin is supplied with 3–6.5V. Without VBIAS, the minimum input is 1.4V. This BIAS-enabled operation allows direct use with single-cell LiFePO₄ batteries or ultra-low-voltage SoC domains, and is explicitly confirmed in the datasheet's Recommended Operating Conditions table (Section 3.2).
How is the output voltage programmed on the RAA214035GNP#MC0 without external resistors?
The RAA214035GNP#MC0 uses six dedicated voltage-set pins (50mV, 100mV, 200mV, 400mV, 800mV, and 1.6V) to program output from 0.5V to 3.65V in 50mV increments. With all pins floating, VOUT = 0.5V; grounding any pin adds its labeled value. This internal resistor ladder eliminates external feedback components - a feature verified in Section 7.2.1 and Figure 2 of the R16DS0345EU0102 datasheet.
What capacitor is required on the CNR/SS pin to achieve 7µVRMS output noise?
A 1µF capacitor on the CNR/SS pin is required to achieve the specified 7µVRMS output noise (10Hz–100kHz) for the RAA214035GNP#MC0. The datasheet states this value in Section 1 (Overview) and confirms it in Electrical Specifications (Table 3.4, "Output RMS Noise" rows), noting that 100nF yields higher noise and 1µF is recommended for optimal performance.
Does the RAA214035GNP#MC0 include built-in protection features?
Yes, the RAA214035GNP#MC0 integrates input UVLO with hysteresis (1.1V rising threshold with BIAS), overtemperature shutdown at 165°C with 15°C hysteresis, internal current limiting at 5.5A, and power-good monitoring with –12% threshold. These protections are documented in Sections 6.4–6.8 and Table 3.4 (Protection subsection) of the official Renesas datasheet R16DS0345EU0102.
What is the thermal resistance (θJA) of the RAA214035GNP#MC0 package?
The RAA214035GNP#MC0 in its 20-lead 3.5mm×3.5mm QFN package has a junction-to-ambient thermal resistance (θJA) of 42°C/W, measured in free air on a high-thermal-conductivity test board per JEDEC standards. This value is specified in Section 3.3 (Thermal Specifications) of the R16DS0345EU0102 datasheet and assumes proper EPAD soldering to the PCB ground plane.
RAA214035GNP#MC0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 20-VFQFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Adjustable/Programmable
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6.5V
- Voltage - Output (Min/Fixed):
- 0.5V
- Voltage - Output (Max):
- 3.65V, 5.1V
- Voltage Dropout (Max):
- 0.2V @ 3A
- Current - Output:
- 3A
- Current - Quiescent (Iq):
- -
- Current - Supply (Max):
- -
- PSRR:
- 60dB ~ 25dB (120Hz ~ 1MHz)
- Control Features:
- Current Limit, Enable, Power Good, Soft Start
- Protection Features:
- Over Current, Over Temperature, Short Circuit, Under Voltage Lockout (UVLO)
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-QFN (3.5x3.5)
RAA214035GNP#MC0 FAQ
1.How can I place an order for RAA214035GNP#MC0 through Aetrix?
Please submit a Request for Quotation (RFQ) for RAA214035GNP#MC0 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 RAA214035GNP#MC0 reliable?
The price and inventory of RAA214035GNP#MC0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RAA214035GNP#MC0 is usually 5 days.
3.What payment methods are accepted for RAA214035GNP#MC0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RAA214035GNP#MC0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RAA214035GNP#MC0?
RAA214035GNP#MC0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RAA214035GNP#MC0 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 RAA214035GNP#MC0?
For technical support, including RAA214035GNP#MC0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RAA214035GNP#MC0 requirements.
6.How does Aetrix verify that RAA214035GNP#MC0 is sourced from the original manufacturer or authorized distributors?
All RAA214035GNP#MC0 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 RAA214035GNP#MC0 meets industry standards.
7.What is the process for return or replacement of RAA214035GNP#MC0?
All RAA214035GNP#MC0 units undergo pre-shipment inspection (PSI). If there is an issue with RAA214035GNP#MC0, 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 RAA214035GNP#MC0 part is unused and in its original packaging.
Return procedure for RAA214035GNP#MC0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RAA214035GNP#MC0 Tags
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