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onsemi NCP4625HSN30T1G
- Part No.:
- NCP4625HSN30T1G
- Manufacturer:
- onsemi
- Package:
- -
- Datasheet:
-
NCP4625HSN30T1G.pdf
- Description:
- IC REG LINEAR 3V 300MA SOT23-5
- Quantity:
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Inventory:3,726
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Product details
Overview
NCP4625HSN30T1G from onsemi is a 3.0 V, 300 mA CMOS low-dropout linear regulator in SOT-23-5 package, operating from 2.6 V to 10 V input, with ±1% output voltage accuracy at +25°C, 770 mV dropout at 300 mA, and 70 dB PSRR at 1 kHz-designed for power management in space-constrained portable electronics.
For engineers reviewing the NCP4625HSN30T1G datasheet, pinout, applications, or equivalent options, key selection considerations include its fixed 3.0 V output, chip-enable functionality, thermal shutdown (165°C), current fold-back protection, and stable operation with 1 µF ceramic output capacitors.
Technical Context
The NCP4625HSN30T1G implements a CMOS-based LDO architecture with an internal N-channel pass transistor, enabling low quiescent current (23 µA) and fast enable/disable response. Its feedback loop is internally compensated for stability with 1 µF ceramic output capacitance.
It features active-high Chip Enable (CE) with 1.7 V threshold, internal pull-down current (0.3 µA), and no auto-discharge circuit-distinguishing it from the "D" variant (e.g., NCP4625DSN30T1G). Thermal shutdown releases at 110°C after activation at 165°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0 V ±1% at +25°C; ±2.6% over −40°C to +85°C-ensures stable core/sensor rail under temperature variation. |
| Max Output Current | 300 mA continuous-supports moderate-power microcontrollers, RF front-ends, or camera modules without external heat sinking. |
| Dropout Voltage | 770 mV at 300 mA (VIN = 2.8 V)-enables regulation from two Li-ion cells (down to ~2.8 V) while maintaining 3.0 V output. |
| PSRR | 70 dB at 1 kHz-effectively suppresses switching noise from upstream DC-DC converters in mixed-signal systems. |
| Quiescent Current | 23 µA typical-minimizes battery drain in always-on or low-duty-cycle portable applications. |
| Line Regulation | 0.02%/V typical-maintains tight output voltage despite input fluctuations common in battery-powered systems. |
| Thermal Shutdown | Activates at 165°C junction temperature; releases at 110°C-provides robust overtemperature protection without latch-up. |
Pinout & Package
SOT-23-5 package (Case 1212), 2.7 mm × 2.5 mm footprint, 1.3 mm height, Pb-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input supply connection | Accepts 2.6–10 V; requires local 1 µF ceramic decoupling capacitor for transient immunity and stability. |
| GND | Ground reference | Common return path for input/output/enable; must be low-impedance and routed wide to minimize noise coupling. |
| CE | Chip Enable control | Active-high logic input (VIH = 1.7 V min); internal 0.3 µA pull-down allows direct tie-to-VIN if unused. |
| VOUT | Regulated output | Delivers fixed 3.0 V; stable with ≥1 µF ceramic capacitor; no auto-discharge (unlike D-version). |
| NC | No connection | Internally unconnected pin; must remain floating-no PCB trace or solder mask opening required. |
Key Features
| Feature | Design Value |
|---|---|
| Low dropout operation | 770 mV at full 300 mA load enables use with depleting batteries or low-headroom supplies. |
| CMOS pass element | Enables 23 µA quiescent current-critical for multi-year battery life in IoT sensors and wearables. |
| High PSRR (70 dB @ 1 kHz) | Rejects ripple from switching regulators, preserving signal integrity in audio, ADC, and RF subsystems. |
| Thermal + current protection | Combines fold-back current limiting and 165°C thermal shutdown to prevent damage during overload or poor heatsinking. |
| Single-supply enable interface | CE pin operates from same VIN rail with defined 1.7 V threshold-eliminates need for level-shifting logic. |
Applications
| Portable Medical Sensors | Wi-Fi/BLE IoT Modules |
|---|---|
Use Scenario: Powering ultra-low-power PPG or ECG analog front-ends in wearable health monitors powered by coin-cell or single Li-ion batteries. IC Role / Device Role / Timing Role: Provides clean, stable 3.0 V bias for precision op-amps and ADCs, rejecting battery voltage sag and RF coupling. Use Value: 70 dB PSRR and ±1% output accuracy ensure <1 LSB error in 12-bit medical-grade ADC conversions across battery discharge cycle. |
Use Scenario: Supplying 3.0 V to Wi-Fi SoCs (e.g., ESP32-WROOM) and BLE transceivers in battery-operated smart home devices. IC Role / Device Role / Timing Role: Regulates noisy switched-mode supply output to meet RF IC supply rejection and sleep-current requirements. Use Value: 23 µA quiescent current and CE-controlled shutdown reduce system standby power to <10 µA, extending battery life beyond 1 year. |
| Digital Cameras & DVRs | Industrial Handheld Terminals |
Use Scenario: Delivering regulated 3.0 V to image sensor interfaces and ISP processors in compact action cameras and dashcams. IC Role / Device Role / Timing Role: Supplies low-noise power to high-speed MIPI CSI-2 receivers and clock buffers during burst capture. Use Value: Stable 3.0 V output with <0.5% line/load regulation prevents frame drop or color shift during motor-driven lens actuation or flash charging. |
Use Scenario: Powering ARM Cortex-M microcontrollers and touch-screen controllers in ruggedized warehouse scanners and field meters. IC Role / Device Role / Timing Role: Acts as primary post-regulator for 3.3 V → 3.0 V conversion where precise voltage tolerance is required for USB PHY or SDIO timing. Use Value: 0.02%/V line regulation ensures consistent USB enumeration success and SD card read/write reliability across 9–36 V industrial input range via upstream buck converter. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-3002E/MB | 250 mA max output, 6 µA IQ, SOT-23-3 (no CE pin), 600 mV dropout at 250 mA | Lacks enable control and current capability; suited only for simpler, lower-current loads | Select when ultra-low IQ dominates over enable flexibility and 300 mA headroom. |
| Torex XC6206P302MR-G | 300 mA, 15 µA IQ, SOT-23-5, but no CE pin and only 50 dB PSRR at 1 kHz | Missing active enable and lower noise rejection-unsuitable for dynamic-load or RF-sensitive designs | Choose only for cost-sensitive, static-load applications where CE and PSRR are non-critical. |
Compared with MCP1700T-3002E/MB and XC6206P302MR-G, the NCP4625HSN30T1G uniquely balances 300 mA drive, 23 µA IQ, active-high CE, and 70 dB PSRR in a standard SOT-23-5 footprint-making it optimal for battery-powered systems requiring both efficiency and controllability.
Availability
NCP4625HSN30T1G is available at Aetrix Electronics and suitable for portable medical sensors, Wi-Fi/BLE IoT modules, digital cameras & DVRs, and industrial handheld terminals requiring stable component supply with guaranteed long-term manufacturability.
Supply support for NCP4625HSN30T1G 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, delivering silicon solutions for automotive, industrial, cloud, and intelligent edge applications.
The NCP4625HSN30T1G belongs to onsemi's precision LDO family designed specifically for space-constrained, battery-powered consumer and industrial devices requiring low IQ, high accuracy, and robust protection features.
FAQ
What is the output voltage tolerance of the NCP4625HSN30T1G over temperature?
The NCP4625HSN30T1G delivers 3.0 V output with ±1% tolerance at +25°C and ±2.6% over the full −40°C to +85°C operating range. This is specified in the Electrical Characteristics table (page 3 of the datasheet) under "Output Voltage" test conditions for VOUT > 1.5 V across temperature. The device achieves this using a precision bandgap reference and low-drift amplifier.
Does the NCP4625HSN30T1G include an auto-discharge function?
No, the NCP4625HSN30T1G does not include an auto-discharge function. It is the "H" (standard) variant, distinct from the "D" (discharge) variant such as NCP4625DSN30T1G. When disabled via the CE pin, the NCP4625HSN30T1G disconnects the pass transistor but leaves VOUT floating-external discharge circuitry is required if rapid output decay is needed.
What minimum output capacitance is required for stability with the NCP4625HSN30T1G?
The NCP4625HSN30T1G is stable with a minimum 1 µF ceramic capacitor on the VOUT pin, as confirmed in the Application Information section (page 13). Tantalum capacitors are discouraged due to potential ESR-induced oscillation. The capacitor must be placed as close as possible to the VOUT and GND pins to maintain loop stability under dynamic load conditions.
Can the NCP4625HSN30T1G operate from a single Li-ion cell?
No-the NCP4625HSN30T1G requires a minimum input voltage of 2.6 V and has a 770 mV dropout at 300 mA, meaning it needs at least 3.77 V input to sustain 3.0 V output at full load. A single Li-ion cell (2.7–4.2 V) falls below this margin near end-of-discharge; it is designed for two-cell Li-ion (5.4–8.4 V) or regulated 5 V/3.3 V supplies stepped down to ≥2.8 V.
What is the thermal resistance (RJA) of the NCP4625HSN30T1G in its SOT-23-5 package?
The NCP4625HSN30T1G in SOT-23-5 (Case 1212) has a junction-to-air thermal resistance (RJA) of 238°C/W, as specified in the Thermal Characteristics table (page 3). This value assumes standard JEDEC 2S2P board layout; actual performance improves with copper pour, thermal vias, and proper pad design per the manufacturer's recommended footprint (page 17).
NCP4625HSN30T1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- *
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- -
- Output Type:
- -
- Number of Regulators:
- -
- Voltage - Input (Max):
- -
- Voltage - Output (Min/Fixed):
- -
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- Current - Output:
- -
- Current - Quiescent (Iq):
- -
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- -
- Protection Features:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
NCP4625HSN30T1G FAQ
1.How can I place an order for NCP4625HSN30T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP4625HSN30T1G 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 NCP4625HSN30T1G reliable?
The price and inventory of NCP4625HSN30T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP4625HSN30T1G is usually 5 days.
3.What payment methods are accepted for NCP4625HSN30T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP4625HSN30T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP4625HSN30T1G?
NCP4625HSN30T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP4625HSN30T1G 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 NCP4625HSN30T1G?
For technical support, including NCP4625HSN30T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP4625HSN30T1G requirements.
6.How does Aetrix verify that NCP4625HSN30T1G is sourced from the original manufacturer or authorized distributors?
All NCP4625HSN30T1G 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 NCP4625HSN30T1G meets industry standards.
7.What is the process for return or replacement of NCP4625HSN30T1G?
All NCP4625HSN30T1G units undergo pre-shipment inspection (PSI). If there is an issue with NCP4625HSN30T1G, 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 NCP4625HSN30T1G part is unused and in its original packaging.
Return procedure for NCP4625HSN30T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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