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Renesas RAA2124214GNP#HA0
- Part No.:
- RAA2124214GNP#HA0
- Manufacturer:
- Renesas
- Category:
- Voltage Regulators - Linear + Switching
- Package:
- 22-WFDFN Exposed Pad
- Datasheet:
-
RAA2124214GNP#HA0.pdf
- Description:
- LOW DROP OUT LINEAR SYNCH BUCK
- Quantity:
- Payment:
- Shipping:
Inventory:4,223
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Product details
Overview
RAA2124214GNP#HA0 from Renesas Electronics is a dual-output power management IC integrating a 3V–40V input, 1.1A synchronous buck regulator and a 500mA fast-transient LDO in a single 3×6mm DFN package. It delivers ±1.8% output voltage accuracy across –40°C to +125°C, supports PFM/PWM light-load operation, and features programmable 300kHz–2MHz switching frequency, hiccup-mode OCP, thermal shutdown, and power-good signaling - deployed in industrial control and cloud infrastructure power rails.
For engineers reviewing the RAA2124214GNP#HA0 datasheet, RAA2124214GNP#HA0 pinout, RAA2124214GNP#HA0 application, or RAA2124214GNP#HA0 equivalent, key selection criteria include its dual-regulator architecture, integrated MOSFETs, LDO dropout of 45mV at 500mA, internal/external compensation flexibility, and industrial-grade temperature range with Pb-free RoHS-compliant packaging.
Technical Context
The RAA2124214GNP#HA0 implements a current-mode PWM/PFM hybrid control architecture for the buck stage, with zero-current detection enabling seamless mode transition and an internal 500kHz oscillator adjustable via FS1 resistor. Its LDO employs state-of-the-art internal compensation to achieve sub-10µs load transient response while maintaining stability with minimal external capacitance.
Buck regulation uses a 0.6V reference with 50µA/V (internal) or 230µA/V (external) transconductance error amplifier gain; LDO regulation relies on a 500mV feedback reference with ±1.8% total output accuracy over line, load, and temperature. Both regulators share independent enable (EN1/EN2), soft-start (SS1/SS2), and ground-referenced power-good (PG1) and feedback (FB1/FB2) pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range (Buck) | 3V to 40V DC - supports wide industrial input rails including 12V, 24V, and 36V systems without pre-regulation. |
| Max Output Current (Buck) | 1.1A continuous - sufficient for FPGA I/O banks, microcontroller cores, or ASIC auxiliary rails. |
| Max Output Current (LDO) | 500mA - powers noise-sensitive analog circuits, ADC references, or low-power sensors with fast transient immunity. |
| Output Accuracy | ±1.8% over –40°C to +125°C - ensures stable logic-level compliance and precision analog biasing across full industrial range. |
| Switching Frequency | 300kHz to 2MHz (programmable) - enables optimization of size (higher fSW → smaller inductor) vs. efficiency (lower fSW → lower switching loss). |
| LDO Dropout Voltage | 45mV at VOUT = 2.5V, IOUT = 500mA - minimizes headroom loss for low-voltage rails like 1.8V or 2.5V domains. |
| PSRR (LDO) | ≥57dB at 1kHz - suppresses ripple from upstream buck stage or noisy system supplies into sensitive analog loads. |
Pinout & Package
RAA2124214GNP#HA0 is housed in a 22-lead, 3mm × 6mm, 0.5mm pitch TDFN package (RoHS-compliant, exposed thermal pad). The package supports high thermal performance (θJC = 3.3°C/W) and is rated for –40°C to +125°C junction temperature.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN1 | Buck enable input | TTL/CMOS-compatible; >1V enables buck; tied to VIN1 for auto-start; controls both buck and internal VCC1 LDO. |
| FB1 | Buck feedback node | Inverting input to error amp; sets VOUT1 via resistor divider; used by PG1 and UVLO monitoring circuits. |
| LX1 | Switch node | Connects internal high-side/low-side nMOSFETs to external inductor; requires low-ESR ceramic bootstrap cap (100nF) to BOOT1. |
| PG1 | Open-drain power-good | Pulled low during soft-start or undervoltage; internal 5MΩ pull-up; signals stable VOUT1 to system controller. |
| SS2 | LDO soft-start capacitor node | Charges external capacitor to control VOUT2 ramp rate; internal pull-down discharges it during disable. |
| VOUT2 | LDO regulated output | Two pins (18 & 19) - paralleled for 500mA delivery; requires ≥4.7µF X5R/X7R output capacitor for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated high-side/low-side nMOSFETs | Eliminates need for external power switches; RHDS = 313mΩ / RLDS = 175mΩ at 100mA reduces conduction loss and BOM count. |
| PFM/PWM selectable light-load mode | SYNC1 pin configures operation: logic low = PFM (high efficiency at <100mA), logic high = forced PWM (fixed frequency, low noise). |
| Internal or external loop compensation | COMP1 tied to VCC1 enables internal compensation; RC network to GND enables external tuning for custom stability margins. |
| Hiccup-mode overcurrent protection | Auto-restarts after fault clearance; prevents thermal runaway during sustained overload or short-circuit conditions. |
| Independent dual enable/soft-start | EN1/SS1 control buck; EN2/SS2 control LDO - enables staggered power sequencing for multi-rail systems. |
Applications
| Industrial Control PLC Modules | Medical Diagnostic Imaging Sensors |
|---|---|
|
Use Scenario: Powering FPGA configuration logic, isolated CAN transceivers, and analog front-end signal conditioning in modular PLC backplanes. IC Role / Device Role / Timing Role: Dual-regulator PMIC providing clean 3.3V for digital logic and ultra-low-noise 1.8V for ADC reference and sensor biasing. Use Value: Integrated LDO PSRR ≥57dB at 1kHz rejects switching noise from buck stage, preserving 16-bit ADC SNR without additional filtering. |
Use Scenario: Supplying low-noise bias to CMOS image sensor arrays and timing-critical clock buffers in portable ultrasound units. IC Role / Device Role / Timing Role: Buck delivers 5V/1.1A to digital subsystem; LDO provides 2.5V/500mA with 45mV dropout and <10µs transient response to sensor pixel reset events. Use Value: Fast LDO transient recovery (<10µs) maintains voltage within ±1.8% during rapid pixel row activation, preventing image artifacts. |
| Distributed Cloud Server Power Rails | Portable Test & Measurement Instruments |
|
Use Scenario: Generating auxiliary 1.2V core and 3.3V I/O rails from 12V intermediate bus in rack-mounted server mezzanine cards. IC Role / Device Role / Timing Role: Buck regulates 1.2V at up to 1.1A; LDO post-regulates 3.3V from buck output or separate 5V source for noise isolation. Use Value: Programmable 300kHz–2MHz fSW allows inductor downsizing for high-density server PCB layouts while maintaining >90% peak efficiency. |
Use Scenario: Powering mixed-signal SoCs, precision DACs, and real-time display controllers in handheld oscilloscopes and spectrum analyzers. IC Role / Device Role / Timing Role: Buck supplies 5V/1.1A to processor and memory; LDO delivers 3.3V/500mA with ±1.8% accuracy to analog signal chain components. Use Value: Independent EN2/SS2 sequencing ensures analog rail stabilizes before digital logic boots, eliminating startup glitches in measurement data. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS65217C1RSLR | Single-chip PMIC with buck+LDO+charger; 2.7–5.5V input; max buck current 1.2A; no 40V input capability. | Targeted at battery-powered portable devices, not wide-input industrial systems. | Select when battery charging and lower input voltage (<6V) are required; not suitable for 12V/24V/36V industrial rails. |
| MAX20006AATP+ | Automotive-grade 3.5–36V buck+LDO; AEC-Q100 qualified; 1.2A buck; 300mA LDO; fixed 2.2MHz fSW. | Designed for automotive infotainment and ADAS; includes watchdog and fault reporting not present in RAA2124214GNP#HA0. | Choose for automotive environments requiring AEC-Q100 qualification and functional safety features; higher cost and over-spec for industrial use. |
Compared with TPS65217C1RSLR and MAX20006AATP+, the RAA2124214GNP#HA0 uniquely balances 40V input tolerance, 1.1A buck + 500mA LDO integration, and industrial temperature range in a compact 3×6mm footprint - making it optimal for space-constrained, wide-input industrial and cloud infrastructure designs where automotive qualification or battery charging are unnecessary.
Availability
RAA2124214GNP#HA0 is available at Aetrix Electronics and suitable for industrial control, medical diagnostics, and distributed cloud infrastructure requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for RAA2124214GNP#HA0 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 delivering microcontrollers, analog power, and SoC solutions for industrial, automotive, and enterprise applications.
The RAA2124214GNP#HA0 belongs to Renesas' Power Management IC portfolio, engineered specifically for compact, high-efficiency dual-rail power delivery in harsh industrial environments with wide input voltage ranges and extended temperature operation.
FAQ
What is the maximum input voltage supported by the RAA2124214GNP#HA0 buck regulator?
The RAA2124214GNP#HA0 buck regulator supports a maximum input voltage of 40V DC, with absolute maximum rating of +43V on VIN1. This enables direct connection to unregulated 24V or 36V industrial bus rails without external pre-regulation, reducing system complexity and component count in factory automation and motor control applications.
Does the RAA2124214GNP#HA0 require external compensation components for stable operation?
No - the RAA2124214GNP#HA0 supports both internal and external compensation. Tying COMP1 to VCC1 activates internal compensation, eliminating external RC networks. For custom loop response or marginal stability cases, an external RC network from COMP1 to GND enables precise pole-zero placement per design requirements.
How does the RAA2124214GNP#HA0 handle overcurrent conditions on the buck output?
The RAA2124214GNP#HA0 implements hiccup-mode overcurrent protection: upon current limit detection (1.3–1.8A typical), it shuts down the buck stage, waits ~8 soft-start cycles, then attempts restart. This prevents thermal damage during sustained faults while allowing automatic recovery if the overload clears - critical for unattended industrial equipment.
Can the RAA2124214GNP#HA0's LDO operate independently of the buck regulator?
Yes - the LDO (VIN2, EN2, VOUT2) operates from a separate 1.8–6V input and has independent enable (EN2) and soft-start (SS2) control. It can be powered from the buck output, a separate low-voltage rail, or even a battery backup source, enabling flexible power sequencing and redundancy in mission-critical systems using the RAA2124214GNP#HA0.
What is the thermal performance of the RAA2124214GNP#HA0 in its 3×6mm TDFN package?
The RAA2124214GNP#HA0 achieves θJC = 3.3°C/W and θJA = 32°C/W (typical) in its 22-lead TDFN package. With proper PCB layout - including ≥5 thermal vias under the EPAD connected to inner ground planes - it sustains 1.1A buck output continuously at +125°C ambient, meeting industrial reliability requirements without forced airflow.
RAA2124214GNP#HA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 22-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Topology:
- Step-Down (Buck) Synchronous (1), Linear (LDO) (1)
- Number of Outputs:
- 2
- Frequency - Switching:
- 300kHz ~ 2MHz
- Voltage/Current - Output 1:
- Programmable, Programmable, 0.5V ~ 5.5V, 1.1A
- Voltage/Current - Output 2:
- Programmable, Programmable, 0.8V ~ 5.5V, 500mA
- Voltage/Current - Output 3:
- -
- w/LED Driver:
- No
- w/Supervisor:
- No
- w/Sequencer:
- Yes
- Voltage - Supply:
- 1.8V ~ 6V, 3V ~ 40V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 22-TDFN (3x6)
RAA2124214GNP#HA0 FAQ
1.How can I place an order for RAA2124214GNP#HA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for RAA2124214GNP#HA0 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 RAA2124214GNP#HA0 reliable?
The price and inventory of RAA2124214GNP#HA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RAA2124214GNP#HA0 is usually 5 days.
3.What payment methods are accepted for RAA2124214GNP#HA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RAA2124214GNP#HA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RAA2124214GNP#HA0?
RAA2124214GNP#HA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RAA2124214GNP#HA0 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 RAA2124214GNP#HA0?
For technical support, including RAA2124214GNP#HA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RAA2124214GNP#HA0 requirements.
6.How does Aetrix verify that RAA2124214GNP#HA0 is sourced from the original manufacturer or authorized distributors?
All RAA2124214GNP#HA0 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 RAA2124214GNP#HA0 meets industry standards.
7.What is the process for return or replacement of RAA2124214GNP#HA0?
All RAA2124214GNP#HA0 units undergo pre-shipment inspection (PSI). If there is an issue with RAA2124214GNP#HA0, 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 RAA2124214GNP#HA0 part is unused and in its original packaging.
Return procedure for RAA2124214GNP#HA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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