My Inquiry
My Account
Renesas RAA2144034GQS#GA0
- Part No.:
- RAA2144034GQS#GA0
- Manufacturer:
- Renesas
- Package:
- TO-243AA
- Datasheet:
-
RAA2144034GQS#GA0.pdf
- Description:
- LOW IQ, 40V VIN, FIX VOUT 3.3V,
- Quantity:
- Payment:
- Shipping:
Inventory:4,760
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
RAA2144034GQS#GA0 from Renesas Electronics is a 3.3V fixed-output, low-quiescent current (3.8µA) PMOS LDO regulator in a 5-pin SOT-23 package, rated for 150mA output current and 40V maximum input voltage with ±3% output accuracy over line, load, and temperature. It features enable control, UVLO with hysteresis, thermal shutdown, and stable operation with ≥2.2µF ceramic output capacitance - deployed in battery-powered instrumentation and portable industrial sensors.
For engineers reviewing the RAA2144034GQS#GA0 datasheet, RAA2144034GQS#GA0 pinout, RAA2144034GQS#GA0 application, or RAA2144034GQS#GA0 equivalent, key selection criteria include dropout voltage at 100mA (510mV typ), shutdown current (<0.5µA), input UVLO thresholds (2.2V rising / 2.2V falling), junction temperature range (–40°C to +125°C), and SOT-23 pin compatibility with EN and NC terminals.
Technical Context
The RAA2144034GQS#GA0 implements a PMOS pass transistor architecture with internal bandgap reference and error amplifier feedback loop, enabling precise DC regulation under dynamic load steps. Its UVLO circuit includes 200mV hysteresis to prevent oscillation during input transients, and enable logic operates with 1.5V typical threshold and 1.21V/1.34V hysteresis window.
Thermal protection activates at +150°C junction temperature with 20°C hysteresis, and short-circuit current limiting holds output at ~250mA during faults. The device requires no external compensation and achieves stability with minimal 2.2µF MLCC output capacitance due to inherent phase margin design.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.3V ±3% - ensures stable rail for 3.3V microcontrollers and analog front-ends across full operating range |
| Max Input Voltage | 40V - supports wide-input industrial power rails including 24V and 36V systems with 45V transient tolerance |
| Quiescent Current | 3.8µA typ - enables multi-year battery life in always-on sensor nodes and IoT endpoints |
| Dropout Voltage | 510mV typ at 100mA - maintains regulation down to VIN = 3.81V, critical for low-headroom battery discharge |
| Output Accuracy | ±3% over line/load/temp - eliminates need for post-regulation trimming in cost-sensitive embedded designs |
| Thermal Shutdown | +150°C activation with 20°C hysteresis - prevents latch-up during sustained overload without external thermal management |
| Enable Threshold | 1.5V typ rising, 1.21V falling - compatible with 1.8V/3.3V GPIOs and resistor-divider programming |
Pinout & Package
RAA2144034GQS#GA0 uses a 5-lead SOT-23 surface-mount package with exposed pad for thermal dissipation (θJA = 174°C/W). Pin 1 is VIN, Pin 2 is GND, Pin 3 is EN, Pin 4 is NC, and Pin 5 is VOUT - verified per Renesas R16DS0291EU0100 datasheet Figure 2.2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Input supply connection | Accepts 4.5V–40V input; requires ≥2.2µF ceramic bypass capacitor placed adjacent to pin to suppress high-frequency noise and line transients |
| GND (Pin 2) | Reference ground node | Mandatory low-impedance connection to PCB ground plane; serves as return path for all internal currents and feedback reference |
| EN (Pin 3) | Active-high enable control | Pulls HIGH (>1.5V) to activate regulator; pulls LOW (<1.21V) to enter <0.5µA shutdown mode; must not float |
| NC (Pin 4) | No internal connection | May be left unconnected or tied to GND; no electrical function or thermal benefit |
| VOUT (Pin 5) | Regulated output terminal | Delivers 3.3V ±3% to load; requires ≥2.2µF ceramic capacitor from VOUT to GND for stability across –40°C to +125°C |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low IQ | 3.8µA typical quiescent current enables >10-year battery life in 25µA average-load applications |
| Integrated UVLO | 2.2V rising threshold with 200mV hysteresis prevents false turn-on during cold cranking or brown-out conditions |
| PMOS Pass Architecture | Enables low dropout and zero reverse-current flow - critical for back-powering prevention in multi-rail systems |
| Stable with Small Capacitors | Guaranteed stability with 2.2µF X5R/X7R MLCC output capacitors - reduces BOM count and board area vs. larger electrolytics |
| Robust Protection Suite | Combines overcurrent limit (~250mA), thermal shutdown (+150°C), and input UVLO - eliminates need for external fault management circuitry |
Applications
| Industrial Sensor Node | Portable Medical Monitor |
|---|---|
Use Scenario: Battery-powered wireless temperature/humidity sensor with BLE MCU and analog signal chain operating in remote field deployments. IC Role / Device Role / Timing Role: Primary 3.3V power rail regulator supplying MCU core, ADC, and RF transceiver from single Li-ion cell or two AA batteries. Use Value: 3.8µA quiescent current extends 2xAA battery life beyond 5 years; 40V input rating accommodates surge-prone industrial wiring environments. | Use Scenario: Handheld ECG monitor requiring low-noise, long-life power for analog front-end and display controller. IC Role / Device Role / Timing Role: Clean 3.3V supply for precision op-amps and SAR ADC, isolated from noisy digital subsystems via LDO filtering. Use Value: 221µVRMS output noise (10Hz–100kHz) preserves signal integrity; ±3% accuracy avoids calibration drift across temperature. |
| Automotive Body Control Module | Smart Home Hub Power Management |
Use Scenario: Low-power door module with wake-on-RF and CAN transceiver, powered from vehicle 12V/24V battery with load dump transients. IC Role / Device Role / Timing Role: Secondary 3.3V regulator for microcontroller and EEPROM after primary buck stage, handling input transients up to 45V. Use Value: 45V transient tolerance and UVLO hysteresis prevent reset glitches during cold-crank; SOT-23 footprint minimizes PCB real estate. | Use Scenario: Always-on voice assistant hub drawing standby current from AC adapter or USB-PD source with variable input voltage. IC Role / Device Role / Timing Role: Standby LDO enabling ultra-low-power wake-up circuitry while main SoC remains off. Use Value: <0.5µA shutdown current meets Energy Star Level VI requirements; EN pin allows synchronized wake-up with system controller. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6210B332MR-G | 3.3V, 150mA, SOT-23-5, IQ = 1.5µA, dropout = 160mV@100mA, no EN pin | Lacks enable control and UVLO; requires external enable circuitry for shutdown sequencing | Select when lowest possible IQ is critical and enable functionality is implemented externally |
| ROHM BD33IC0WEFJ-C | 3.3V, 200mA, HTSOP-8, IQ = 30µA, dropout = 300mV@100mA, integrated thermal foldback | Higher IQ and larger package; includes foldback current limiting instead of constant-current limit | Select when higher output current and enhanced thermal robustness outweigh size and quiescent current penalties |
Compared with XC6210B332MR-G and BD33IC0WEFJ-C, RAA2144034GQS#GA0 uniquely combines ultra-low IQ (3.8µA), integrated EN/UVLO, and 40V input capability in a compact SOT-23-5 - making it optimal for space-constrained, battery-sensitive designs requiring autonomous fault response.
Availability
RAA2144034GQS#GA0 is available at Aetrix Electronics and suitable for industrial sensor nodes, portable medical monitors, automotive body control modules, and smart home hubs requiring stable component supply with guaranteed long-term manufacturability.
Supply support for RAA2144034GQS#GA0 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 automotive, industrial, and IoT markets.
The RAA21440x product line targets ultra-low-power, high-reliability LDO regulation in harsh environments - engineered specifically for battery longevity, wide-input industrial power, and autonomous protection in space-constrained edge devices.
FAQ
What is the maximum input voltage rating for RAA2144034GQS#GA0?
The RAA2144034GQS#GA0 has an absolute maximum input voltage rating of +45V and a recommended operating maximum of 40V. This 40V rating supports direct connection to 24V and 36V industrial bus rails while tolerating common line transients such as ISO 7637-2 Pulse 1 and Pulse 4. Operation above 40V is not recommended for continuous use per Renesas R16DS0291EU0100 Section 3.1.
Does RAA2144034GQS#GA0 require an external capacitor for stability?
Yes, RAA2144034GQS#GA0 requires a minimum 2.2µF ceramic output capacitor (X5R/X7R type) from VOUT to GND for guaranteed stability across –40°C to +125°C and full load range. An input capacitor of at least 2.2µF is also recommended between VIN and GND to suppress noise and improve line transient response. These values are specified in the datasheet Section 6.6 and Figure 1.
What is the shutdown current of RAA2144034GQS#GA0 when EN is pulled low?
When the EN pin is driven below 1.21V (falling threshold), RAA2144034GQS#GA0 enters shutdown mode with a typical current draw of 248nA and a maximum of 577nA, as measured at VEN = 0V per datasheet Table 3.4. This sub-µA shutdown current enables multi-decade battery life in always-off system states.
Can RAA2144034GQS#GA0 be used with a 2.5V input supply?
No, RAA2144034GQS#GA0 cannot regulate with a 2.5V input. Its minimum recommended input voltage is 4.5V (Section 3.2), and the 3.3V output requires sufficient headroom - minimum dropout is 50mV at light load but rises to 760mV at 150mA. At 2.5V input, the device remains in UVLO (threshold 2.2V rising) and will not enable or produce regulated output.
Is the NC pin on RAA2144034GQS#GA0 required to be connected?
No, the NC (No Connection) pin (Pin 4) on RAA2144034GQS#GA0 has no internal connection and may be left floating or tied to GND per datasheet Section 2.2. It provides no electrical function, thermal benefit, or EMI reduction - its presence is solely for mechanical symmetry in the 5-pin SOT-23 layout.
RAA2144034GQS#GA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- TO-243AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 40V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1.278V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 7.3 µA
- Current - Supply (Max):
- 231 µA
- PSRR:
- 78dB ~ 60dB (10Hz ~ 1MHz)
- Control Features:
- -
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-89-3
RAA2144034GQS#GA0 FAQ
1.How can I place an order for RAA2144034GQS#GA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for RAA2144034GQS#GA0 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 RAA2144034GQS#GA0 reliable?
The price and inventory of RAA2144034GQS#GA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RAA2144034GQS#GA0 is usually 5 days.
3.What payment methods are accepted for RAA2144034GQS#GA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RAA2144034GQS#GA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RAA2144034GQS#GA0?
RAA2144034GQS#GA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RAA2144034GQS#GA0 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 RAA2144034GQS#GA0?
For technical support, including RAA2144034GQS#GA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RAA2144034GQS#GA0 requirements.
6.How does Aetrix verify that RAA2144034GQS#GA0 is sourced from the original manufacturer or authorized distributors?
All RAA2144034GQS#GA0 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 RAA2144034GQS#GA0 meets industry standards.
7.What is the process for return or replacement of RAA2144034GQS#GA0?
All RAA2144034GQS#GA0 units undergo pre-shipment inspection (PSI). If there is an issue with RAA2144034GQS#GA0, 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 RAA2144034GQS#GA0 part is unused and in its original packaging.
Return procedure for RAA2144034GQS#GA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RAA2144034GQS#GA0 Tags
-
MIC5504-1.8YM5-TR
Microchip Technology
-
MIC5504-3.3YM5-TR
Microchip Technology
-
MIC5365-3.0YC5-TR
Microchip Technology
-
MIC5365-1.8YC5-TR
Microchip Technology
-
MIC5365-2.5YC5-TR
Microchip Technology
-
MIC5365-3.3YC5-TR
Microchip Technology
-
MIC5365-3.3YD5-TR
Microchip Technology
-
MIC5317-3.3YM5-TR
Microchip Technology
-
TLV1117LV33DCYR
Texas Instruments
-
MIC5317-3.3YMT-TZ
Microchip Technology
-
MIC5528-3.3YMT-TR
Microchip Technology
-
TLV75801PDRVR
Texas Instruments
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
