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onsemi NCP4626HSN030T1G
- Part No.:
- NCP4626HSN030T1G
- Manufacturer:
- onsemi
- Package:
- SC-74A, SOT-753
- Datasheet:
-
NCP4626HSN030T1G.pdf
- Description:
- IC REG LINEAR 3V 300MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,478
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Product details
Overview
NCP4626HSN030T1G from onsemi is a 300 mA CMOS low dropout linear regulator with reverse current protection, 3.0 V fixed output, 3.5–16 V input range, ±1.5% output accuracy in fast mode, and dual-mode ECO control (fast/low-power). It operates in digital home appliances and audio-visual equipment where VOUT may exceed VIN.
For engineers reviewing the NCP4626HSN030T1G datasheet, pinout, applications, or equivalent options, key selection criteria include dropout voltage at 300 mA (550 mV typ. in fast mode), quiescent current (6 µA typ. in low-power mode), reverse current blocking (<0.1 µA), thermal shutdown (150°C), and compatibility with 2.2 µF input / 4.7 µF output ceramic capacitors.
Technical Context
The NCP4626HSN030T1G integrates a precision bandgap reference, fold-back current limiting, reverse current detector, and thermal shutdown circuitry. Its ECO pin selects between fast mode (lower dropout, better transient response) and low-power mode (6 µA IQ), enabling dynamic trade-offs between efficiency and performance.
It features internal N-channel pass transistor architecture with reverse current protection activated when VOUT > VIN, eliminating external diode requirements. The device remains stable with minimal external components-only two ceramic capacitors-and supports operation across −40°C to +85°C ambient temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 300 mA max - supports moderate-power microcontrollers and sensors without external boost |
| Dropout Voltage | 550 mV typ. @ 300 mA, 5 V out, fast mode - enables regulation from 3.55 V input for 3.0 V rail |
| Quiescent Current | 6 µA typ. @ 0 mA, low-power mode - extends battery life in always-on standby circuits |
| Output Accuracy | ±1.5% @ 25°C, fast mode - ensures reliable logic-level compliance for 3.0 V I/O domains |
| PSRR | 60 dB @ 1 kHz - suppresses switching noise from upstream DC/DC converters |
| Reverse Current | <0.1 µA @ VOUT > 0.6 V, VIN = 0 V - prevents backfeed during power sequencing or hot-swap events |
| Thermal Shutdown | 150°C trip, 130°C release - provides self-protection during overload or poor PCB heatsinking |
Pinout & Package
Package: SOT-23-5 (Case 1212), Pb-free, 2.7 mm × 2.5 mm footprint with exposed pad connected to GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (ECO) | Mode selector input | H = fast mode (low dropout, high PSRR); L = low-power mode (6 µA IQ); must not float |
| 2 (GND) | Ground reference | Primary return path for load, bias, and thermal conduction via exposed pad |
| 3 (CE) | Chip enable input | Active-high logic control; internal pull-down allows direct VIN tie if unused |
| 4 (VOUT) | Regulated output | 3.0 V fixed, low-noise supply for downstream ICs; requires 4.7 µF ceramic capacitor |
| 5 (VIN) | Input supply | 3.5–16 V input; accepts up to 18 V absolute max; requires 2.2 µF ceramic decoupling |
Key Features
| Feature | Design Value |
|---|---|
| Reverse current protection | Blocks backflow when VOUT > VIN - eliminates need for external blocking diode in backup/battery systems |
| Dual-mode ECO control | Selects between fast mode (550 mV dropout) and low-power mode (6 µA IQ) - adapts to dynamic system power states |
| Stable with small ceramics | Works with 2.2 µF input / 4.7 µF output X7R/X5R ceramics - reduces BOM count and board area vs. tantalum alternatives |
| Thermal and current protection | Fold-back current limit + 150°C thermal shutdown - prevents damage during short-circuit or thermal overload |
| Precision output accuracy | ±1.5% over temperature in fast mode - meets tight tolerance requirements for ADC references and sensor biasing |
Applications
| Digital Home Appliance Power Rail | Audio-Visual Equipment Supply |
|---|---|
Use Scenario: Powering MCU, display driver, and IR receiver in smart TV remote or microwave control panel with shared 5 V bus. IC Role / Device Role / Timing Role: Primary 3.0 V LDO delivering clean, sequenced power; reverse protection prevents backfeed from 3.3 V display interface during main power loss. Use Value: Enables single-supply design with no external diode, reducing component count and improving reliability during brown-out conditions. | Use Scenario: Providing regulated 3.0 V to HDMI CEC controller and audio codec in soundbar or AV receiver. IC Role / Device Role / Timing Role: Low-noise, PSRR-optimized supply isolating analog audio stages from noisy digital subsystems. Use Value: 60 dB PSRR at 1 kHz suppresses ripple from upstream 5 V buck converter, lowering audible noise floor by >15 dB. |
| Battery Backup Circuit | Industrial Sensor Node |
Use Scenario: Maintaining real-time clock and SRAM during AC power failure using coin-cell or supercapacitor backup. IC Role / Device Role / Timing Role: Reverse-current-blocking LDO ensuring backup source powers only its designated load, not main 5 V rail. Use Value: <0.1 µA reverse leakage preserves backup energy for >1 year in low-power sleep states. | Use Scenario: Powering ultra-low-power wireless sensor node (sub-GHz RF + Cortex-M0+) operating intermittently from Li-ion cell. IC Role / Device Role / Timing Role: Dual-mode regulator: low-power mode during 99% sleep time (6 µA IQ), fast mode during 100 ms transmit burst. Use Value: Reduces average system IQ by 85% vs. fixed fast-mode LDO, extending battery life from 6 to >36 months. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-dropout linear regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-3002E/TT | 250 mA output, 6 µA IQ, no ECO mode or reverse current protection | Lacks reverse blocking and dual-mode control - requires external diode for backup scenarios | Choose when cost sensitivity outweighs reverse protection and dynamic mode control needs |
| TLS850F3BVT/V33 | Automotive-grade AEC-Q100, 500 mA, integrated watchdog, higher quiescent current (25 µA) | Qualified for automotive use; overkill for consumer applications due to cost and feature bloat | Choose only for automotive designs requiring ASIL-B compliance and system monitoring features |
Compared with MCP1700T-3002E/TT and TLS850F3BVT/V33, the NCP4626HSN030T1G uniquely combines reverse current blocking, selectable ECO modes, and 300 mA capability in a compact SOT-23-5 package-making it optimal for space-constrained consumer electronics requiring robust power sequencing and low standby power.
Availability
NCP4626HSN030T1G is available at Aetrix Electronics and suitable for digital home appliances, audio-visual equipment, and battery backup circuits requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for NCP4626HSN030T1G 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
onsemi (formerly ON Semiconductor) is a global semiconductor supplier focused on energy-efficient electronics, with leadership in power management, analog, and sensing technologies.
The NCP4626 series belongs to onsemi's precision LDO portfolio designed for consumer and industrial applications demanding reverse-current protection, low IQ, and flexible dynamic performance tuning via ECO mode.
FAQ
What is the maximum input voltage rating for the NCP4626HSN030T1G?
The NCP4626HSN030T1G has an absolute maximum input voltage of 18.0 V. Its recommended operating input range is 3.5 V to 16.0 V. Exceeding 18.0 V risks permanent damage, even momentarily. This rating applies regardless of output load or ECO mode setting, and is verified per onsemi's Absolute Maximum Ratings table.
Does the NCP4626HSN030T1G include reverse current protection, and how does it function?
Yes, the NCP4626HSN030T1G includes integrated reverse current protection. When VOUT exceeds VIN (e.g., during power-down or backup-source activation), the internal circuitry blocks current flow from VOUT to VIN, limiting reverse current to <0.1 µA. This eliminates the need for an external blocking diode in battery backup or hot-swap applications.
What are the key differences between fast mode and low-power mode on the NCP4626HSN030T1G?
In fast mode (ECO = VIN), the NCP4626HSN030T1G delivers 550 mV typical dropout at 300 mA and ±1.5% output accuracy, but draws ~100 µA quiescent current. In low-power mode (ECO = GND), IQ drops to 6 µA typ., but dropout rises to 700 mV typ. and accuracy degrades to ±2.5%. Mode selection is static-not dynamically switchable under load.
Can the NCP4626HSN030T1G be used with ceramic output capacitors, and what value is required?
Yes, the NCP4626HSN030T1G is fully stable with ceramic output capacitors. A minimum of 4.7 µF X7R or X5R ceramic capacitor is required at the VOUT pin, placed as close as possible to the device. Larger values (e.g., 10 µF) improve transient response and PSRR, but are not mandatory for stability.
Is the NCP4626HSN030T1G pin-compatible with other variants in the NCP4626 family?
Yes, all NCP4626 variants-including NCP4626HSN030T1G, NCP4626HSN033T1G, and NCP4626DSN030T1G-share identical SOT-23-5 pinout and footprint. Output voltage and auto-discharge functionality differ by part number, but electrical connections, thermal pad layout, and PCB land pattern are fully interchangeable.
NCP4626HSN030T1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 16V
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1.5V @ 300mA
- Current - Output:
- 300mA
- Current - Quiescent (Iq):
- 100 µA
- Current - Supply (Max):
- -
- PSRR:
- 70dB (1kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
NCP4626HSN030T1G FAQ
1.How can I place an order for NCP4626HSN030T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP4626HSN030T1G 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 NCP4626HSN030T1G reliable?
The price and inventory of NCP4626HSN030T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP4626HSN030T1G is usually 5 days.
3.What payment methods are accepted for NCP4626HSN030T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP4626HSN030T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP4626HSN030T1G?
NCP4626HSN030T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP4626HSN030T1G 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 NCP4626HSN030T1G?
For technical support, including NCP4626HSN030T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP4626HSN030T1G requirements.
6.How does Aetrix verify that NCP4626HSN030T1G is sourced from the original manufacturer or authorized distributors?
All NCP4626HSN030T1G 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 NCP4626HSN030T1G meets industry standards.
7.What is the process for return or replacement of NCP4626HSN030T1G?
All NCP4626HSN030T1G units undergo pre-shipment inspection (PSI). If there is an issue with NCP4626HSN030T1G, 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 NCP4626HSN030T1G part is unused and in its original packaging.
Return procedure for NCP4626HSN030T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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