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Renesas RAA230151GSB#HA0
- Part No.:
- RAA230151GSB#HA0
- Manufacturer:
- Renesas
- Package:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
RAA230151GSB#HA0.pdf
- Description:
- IC REG BUCK 3.3V 3A 8HLSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,122
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Product details
Overview
RAA230151GSB#HA0 from Renesas Electronics is a single-channel synchronous step-down DC/DC converter with fixed 3.3 V output, 7–28 V input range, 3 A maximum output current, 1.1 MHz fixed switching frequency, and Auto PFM mode for high efficiency across light-to-heavy loads-designed for power conversion in industrial surveillance cameras and smart metering systems.
For engineers reviewing the RAA230151GSB#HA0 datasheet, RAA230151GSB#HA0 pinout, RAA230151GSB#HA0 application, or RAA230151GSB#HA0 equivalent, key selection considerations include its 8-pin HLSOP package, integrated high- and low-side MOSFETs (220 mΩ / 170 mΩ), 2 ms soft start, 1 µA shutdown current, and latch-type short-circuit protection.
Technical Context
The RAA230151GSB#HA0 implements a voltage-mode PWM controller with internal phase compensation optimized for stability with ≥44 µF output capacitance. Its Auto PFM mode automatically transitions between pulse-frequency modulation at light load and fixed-frequency PWM at heavy load-without external control signals.
It integrates both high-side and low-side N-channel MOSFETs, uses a bootstrap capacitor for high-side gate drive, and features an internal 5.0 V LDO (VREG) for bias supply. Protection includes latch-type short-circuit detection (triggered at FB < 0.35 V), thermal shutdown at 165°C (auto-recovery), and under-voltage lockout with 3.9 V turn-on threshold.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 7 V to 28 V - supports wide-range industrial DC bus inputs including 12 V, 24 V, and 28 V nominal systems. |
| Output Voltage | Fixed 3.3 V - eliminates external feedback resistor network; suitable for powering 3.3 V microcontrollers and logic. |
| Max Output Current | 3 A - delivers sufficient power for mid-power embedded subsystems without external current boosting. |
| Switching Frequency | 1.1 MHz (fixed) - enables compact external components (e.g., ≤4.7 µH inductors) and reduces audible noise. |
| Shutdown Current | 1 µA (typ.) - minimizes standby power loss in battery-backed or energy-sensitive applications. |
| Soft Start Time | 2 ms (fixed) - prevents inrush current and output overshoot during power-up; no external component required. |
| Protection Features | Latch-type short-circuit, thermal shutdown (165°C), and auto-recovery UVLO - ensures robust fault handling without system-level intervention. |
Pinout & Package
RAA230151GSB#HA0 is housed in an 8-pin HLSOP package with exposed thermal pad, optimized for surface-mount assembly and thermal dissipation on standard 4-layer PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: VOUT | Feedback sense node | Connects to output rail to monitor regulated 3.3 V; internal reference compares against 0.7 V threshold. |
| 2: FB | Feedback input | Open for fixed-output variants; used only in adjustable versions (e.g., RAA230153) to set VOUT via resistor divider. |
| 3: VREG | Internal LDO output | Supplies 5.0 V (±3%) bias for internal circuitry; requires 1 µF ceramic capacitor to GND. |
| 4: EN | Enable control input | Active-high logic: drives high (>1.3 V) to enable operation; pulled low to enter 1 µA shutdown state. |
| 5: GND | Power and signal ground | Common return path for power stage, control logic, and thermal pad connection; must be tied to exposed pad. |
| 6: LX | Switch node | Connects to inductor; carries high di/dt switching current; requires low-inductance layout to minimize EMI. |
| 7: Boost | Bootstrap supply input | Connects 0.1 µF ceramic capacitor to LX to generate gate drive voltage for high-side MOSFET. |
| 8: VIN | Main power input | Accepts 7–28 V; requires ≥10 µF input capacitance placed close to pin to suppress ripple and transients. |
Key Features
| Feature | Design Value |
|---|---|
| Auto PFM Mode | Automatically switches between PFM (light load) and PWM (heavy load) to maintain >85% efficiency from 1 mA to 3 A output current. |
| Integrated Power Stage | On-chip high-side (220 mΩ) and low-side (170 mΩ) N-MOSFETs eliminate external switch requirements and simplify BOM. |
| Rapid Discharge Circuit | Internally discharges output capacitors when EN is deasserted-no external FET needed-reducing residual voltage within milliseconds. |
| Stable Compensation | Factory-tuned internal phase compensator ensures stable regulation with ≥44 µF ceramic output capacitance; no external compensation required. |
| Robust Protection Suite | Latch-type SCP responds within microseconds to output shorts; thermal shutdown (165°C) and UVLO (3.9 V turn-on) prevent damage under abnormal conditions. |
Applications
| Industrial Surveillance Camera | Smart Electricity Meter |
|---|---|
|
Use Scenario: Powers image sensor, ISP, and communication module in outdoor IP cameras operating from 24 V DC PoE or solar-battery hybrid sources. IC Role / Device Role / Timing Role: Primary 3.3 V power regulator delivering clean, stable voltage with fast transient response to burst-mode imaging loads. Use Value: Auto PFM maintains >90% efficiency at standby (µA-level current), extending battery life in solar-powered deployments. |
Use Scenario: Supplies 3.3 V to metrology ADC, real-time clock, and NB-IoT modem in utility-grade smart meters with long-term field deployment. IC Role / Device Role / Timing Role: Main DC/DC converter providing isolated, regulated power with latch protection against line surges and ESD events. Use Value: 1 µA shutdown current and thermal shutdown ensure reliability over 15+ year service life in unventilated enclosures. |
| Home Gateway Router | Building Security Controller |
|
Use Scenario: Powers baseband processor and Wi-Fi 6 RF front-end in residential broadband gateways powered from 12 V wall adapters. IC Role / Device Role / Timing Role: High-efficiency buck converter enabling compact heatsink-free design while meeting ENERGY STAR standby requirements. Use Value: 1.1 MHz switching allows use of small 3.3 µH inductors and 44 µF ceramic output caps-reducing board area by >30% vs. lower-frequency alternatives. |
Use Scenario: Provides 3.3 V to access control MCU, biometric sensor, and RS-485 transceiver in fire-rated security panels with 24 V backup battery input. IC Role / Device Role / Timing Role: Core power management IC ensuring continuous operation during AC mains failure via rapid discharge control and stable regulation. Use Value: Integrated discharge circuit clears output voltage within 10 ms of disable-preventing brownout resets during switchover to battery backup. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down DC/DC converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS54332DR | 3.5 A max output, 3.5–28 V input, adjustable VOUT only; requires external feedback resistors and compensation. | Lacks fixed 3.3 V option and Auto PFM; higher quiescent current (48 µA) limits ultra-low-power use cases. | Choose when adjustable output or higher current margin is required; avoid if fixed 3.3 V and minimal BOM are priorities. |
| MP2332GJ-Z | 3 A max output, 4.5–28 V input, fixed 3.3 V option; 500 kHz switching; no integrated discharge circuit. | Lower switching frequency increases inductor size; lacks rapid output discharge and latch-type SCP. | Select for cost-sensitive designs where thermal performance and fast shutdown recovery are secondary to BOM cost. |
Compared with TPS54332DR and MP2332GJ-Z, RAA230151GSB#HA0 uniquely combines fixed 3.3 V output, Auto PFM for sub-mA efficiency, integrated discharge, and latch-type protection in an 8-pin HLSOP-reducing design effort and improving reliability in space-constrained industrial endpoints.
Availability
RAA230151GSB#HA0 is available at Aetrix Electronics and suitable for industrial surveillance cameras, smart electricity meters, home gateway routers, and building security controllers requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for RAA230151GSB#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 specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RAA23015x series is part of Renesas' high-efficiency DC/DC converter portfolio, designed specifically for industrial and infrastructure applications demanding wide-input, fixed-output, and robust protection in compact packages.
FAQ
What is the output voltage configuration of the RAA230151GSB#HA0?
The RAA230151GSB#HA0 provides a factory-trimmed fixed 3.3 V output. Unlike adjustable variants (e.g., RAA230153), it does not require external feedback resistors-FB pin remains open. This simplifies layout and improves accuracy by eliminating resistor tolerance effects, making RAA230151GSB#HA0 ideal for systems where 3.3 V rail stability is critical.
Does the RAA230151GSB#HA0 support automatic mode switching between PFM and PWM?
Yes, the RAA230151GSB#HA0 operates exclusively in Auto PFM mode-automatically transitioning between pulse-frequency modulation at light loads (<10 mA) and fixed-frequency PWM at heavier loads. This behavior is inherent to the device and cannot be disabled, unlike the RAA23014x family which includes an x_AutoPFM pin for manual control.
What thermal performance can be expected from the RAA230151GSB#HA0 in an 8-pin HLSOP package?
In a standard 4-layer PCB with 50% copper coverage, the RAA230151GSB#HA0 delivers 2600 mW total power dissipation at +25°C ambient, derating linearly at –26.0 mW/°C above that temperature. Its exposed thermal pad must be soldered to a GND plane to achieve this rating-ensuring reliable 3 A operation up to +85°C ambient without forced airflow.
How does the RAA230151GSB#HA0 handle output short-circuit faults?
The RAA230151GSB#HA0 implements latch-type short-circuit protection: when FB voltage drops below 0.35 V due to overload or short, the output shuts down permanently until EN is cycled low-to-high or VIN falls below UVLO stop threshold (3.7 V). This prevents thermal runaway and enables deterministic fault recovery in safety-critical systems using RAA230151GSB#HA0.
What external components are mandatory for basic operation of the RAA230151GSB#HA0?
Four external components are mandatory: (1) ≥10 µF input capacitor between VIN and GND, (2) 0.1 µF bootstrap capacitor between Boost and LX, (3) 1 µF ceramic capacitor between VREG and GND, and (4) ≥44 µF output capacitor between VOUT and GND. Inductor selection depends on ripple target but ≥3.3 µH is typical for 3 A operation at 1.1 MHz-no feedback resistors or compensation network needed for RAA230151GSB#HA0.
RAA230151GSB#HA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 7V
- Voltage - Input (Max):
- 28V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Current - Output:
- 3A
- Frequency - Switching:
- 1.1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-HLSOP
RAA230151GSB#HA0 FAQ
1.How can I place an order for RAA230151GSB#HA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for RAA230151GSB#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 RAA230151GSB#HA0 reliable?
The price and inventory of RAA230151GSB#HA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RAA230151GSB#HA0 is usually 5 days.
3.What payment methods are accepted for RAA230151GSB#HA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RAA230151GSB#HA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RAA230151GSB#HA0?
RAA230151GSB#HA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RAA230151GSB#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 RAA230151GSB#HA0?
For technical support, including RAA230151GSB#HA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RAA230151GSB#HA0 requirements.
6.How does Aetrix verify that RAA230151GSB#HA0 is sourced from the original manufacturer or authorized distributors?
All RAA230151GSB#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 RAA230151GSB#HA0 meets industry standards.
7.What is the process for return or replacement of RAA230151GSB#HA0?
All RAA230151GSB#HA0 units undergo pre-shipment inspection (PSI). If there is an issue with RAA230151GSB#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 RAA230151GSB#HA0 part is unused and in its original packaging.
Return procedure for RAA230151GSB#HA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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