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onsemi NCP4623HSN120T1G
- Part No.:
- NCP4623HSN120T1G
- Manufacturer:
- onsemi
- Package:
- SC-74A, SOT-753
- Datasheet:
-
NCP4623HSN120T1G.pdf
- Description:
- IC REG LINEAR 12V 150MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,190
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Product details
Overview
NCP4623HSN120T1G from onsemi is a 12.0 V fixed-output, CMOS low-dropout linear voltage regulator with 150 mA output current capability, 24 V maximum input voltage, ±2.0% output voltage accuracy, and chip enable (CE) control. It delivers stable power to noise-sensitive analog circuitry in space-constrained portable systems requiring low quiescent current and ceramic capacitor compatibility.
For engineers reviewing the NCP4623HSN120T1G datasheet, pinout, applications, or equivalent options, key selection criteria include dropout voltage at 12 V output (0.30–0.55 V), thermal shutdown (150°C), standby current (0.1 µA typ.), PSRR (≥35 dB at 1 kHz), and XDFN6 1.6×1.6 mm package suitability for high-density PCB layouts.
Technical Context
The NCP4623HSN120T1G implements a CMOS-based LDO architecture with fold-back current limiting, thermal shutdown, and peak/short-circuit protection. Its CE pin enables active-high logic control with 2.1 V minimum threshold, allowing precise system-level power sequencing.
Designed for wide-input operation (2 V to 24 V), it maintains regulation across automotive battery transients and industrial supply variations. Output stability is guaranteed with ≥0.1 µF ceramic capacitors, eliminating need for tantalum or electrolytic types.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 12.0 V ±2.0% - ensures consistent biasing for 12 V analog sensors or interface ICs without external feedback. |
| Max Input Voltage | 24 V - supports direct connection to 24 V industrial rails or automotive battery inputs with transient margin. |
| Dropout Voltage | 0.30–0.55 V @ 20 mA - enables regulation down to VIN = 12.3 V, critical for brownout resilience in 12 V systems. |
| Quiescent Current | 5 µA typ. - minimizes standby power loss in always-on subsystems like real-time clocks or wake-up monitors. |
| Standby Current | 0.1 µA typ. @ VCE = 0 V - reduces system sleep-mode consumption to sub-µW levels when disabled. |
| PSRR | ≥35 dB @ 1 kHz - suppresses ripple from noisy switching supplies feeding the LDO input. |
| Thermal Shutdown | 150°C activation / 125°C release - provides self-resetting overtemperature protection without latch-up. |
Pinout & Package
Package: XDFN6 1.6 mm × 1.6 mm × 0.4 mm (Case 711AC), Pb-free, exposed thermal pad connected to GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VOUT (Pin 3) | Regulated output | Delivers stable 12.0 V to load; requires 0.1 µF ceramic capacitor placed adjacent to pin for stability. |
| GND (Pin 6) | Ground reference | Common return path for input/output currents; connects to exposed thermal pad for enhanced heat dissipation. |
| CE (Pin 4) | Chip enable input | Active-high control: drives output ON when ≥2.1 V; pulls to GND to achieve 0.1 µA standby mode. |
| VIN (Pin 1) | Input supply | Accepts 2–24 V DC; requires 0.1 µF ceramic decoupling capacitor placed within 2 mm of pin. |
| NC (Pin 5) | No connection | Internally unconnected; must be left floating or tied to GND per layout best practice-no functional impact. |
| NC (Pin 2) | No connection | Unused terminal; no electrical function; avoid routing signals or traces to this pin. |
Key Features
| Feature | Design Value |
|---|---|
| Wide input range (2–24 V) | Enables single-regulator support across multiple supply domains-from Li-ion battery packs to 24 V industrial buses. |
| Ceramic capacitor stability | Guaranteed stable with ≥0.1 µF X7R/X5R ceramics, reducing BOM cost and board area vs. tantalum alternatives. |
| Fold-back current protection | Prevents thermal runaway during sustained overload by reducing both output voltage and current proportionally. |
| Ultra-low standby current | 0.1 µA typical enables >10-year battery life in coin-cell-powered IoT endpoints with periodic wake-up cycles. |
| Thermal shutdown with hysteresis | 150°C trip / 125°C recovery prevents oscillation during thermal stress, ensuring reliable fault recovery without external reset logic. |
Applications
| Battery-Powered Sensors | Industrial Control I/O Modules |
|---|---|
Use Scenario: Low-power environmental sensor node powered by two AA alkaline cells (1.8–3.2 V) stepping up to 12 V rail via boost converter, then regulated to clean 12 V for analog front-end. IC Role / Device Role / Timing Role: Final-stage LDO providing ripple-free 12.0 V bias to precision ADC reference and op-amp signal conditioning circuitry. Use Value: ±2.0% output accuracy and 100 ppm/°C tempco ensure <0.1% full-scale error drift over −40°C to +85°C operating range. | Use Scenario: DIN-rail mounted PLC I/O module receiving 24 V DC field power, requiring isolated 12 V for digital isolator bias and analog output driver stage. IC Role / Device Role / Timing Role: Primary 12 V local regulator supplying isolated RS-485 transceivers and DAC output amplifiers. Use Value: 24 V max input withstands 40 V surge transients per IEC 61000-4-4; 35 dB PSRR rejects switching noise from nearby DC/DC converters. |
| Surveillance Camera Power Rails | Automotive Body Control Units |
Use Scenario: IP camera with PoE+ midspan (57 V) using buck converter to generate intermediate 12 V bus, further cleaned by NCP4623HSN120T1G for image sensor analog supply. IC Role / Device Role / Timing Role: Post-regulator delivering ultra-low-noise 12 V to CMOS image sensor analog core and PLL clock generator. Use Value: 90 µVrms output noise (10 Hz–100 kHz) prevents visible banding in low-light video capture. | Use Scenario: BCM controlling door locks, lighting, and HVAC fans, deriving 12 V from vehicle battery (9–16 V nominal, up to 24 V cranking) for microcontroller peripherals. IC Role / Device Role / Timing Role: Secondary LDO generating stable 12 V for CAN transceiver bias and LIN bus drivers. Use Value: CE pin allows MCU to disable regulator during deep sleep, cutting system quiescent draw to <1 µA total. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1703T-1202E/MB | 12 V fixed, 250 mA output, 6 µA quiescent current, SOT-23-5 package | Higher output current but larger dropout (0.6 V min); lacks thermal hysteresis (latches off on overtemp) | Choose for higher load current needs where thermal cycling reliability is less critical. |
| Torex XC6210B122MR-G | 12 V fixed, 150 mA, 1 µA standby, SOT-25 package, 0.35 V dropout | Lower standby current but only 125°C thermal shutdown (no hysteresis); not AEC-Q100 qualified | Prefer for ultra-low-power battery systems where automotive qualification is unnecessary. |
Compared with MCP1703T-1202E/MB and XC6210B122MR-G, the NCP4623HSN120T1G offers superior thermal fault management (150°C trip / 125°C release), tighter output accuracy (±2.0% vs. ±2.5%), and proven robustness in industrial temperature ranges (−40°C to +85°C ambient), making it optimal for mission-critical embedded power rails.
Availability
NCP4623HSN120T1G is available at Aetrix Electronics and suitable for battery-powered equipment, industrial control modules, and automotive body electronics requiring stable component supply with long-term lifecycle assurance.
Supply support for NCP4623HSN120T1G 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, medical, and IoT applications.
The NCP4623HSN120T1G belongs to the NCP4623 family of wide-input LDO regulators designed specifically for space-constrained, low-power systems needing high-voltage tolerance and ultra-low standby consumption.
FAQ
What is the maximum input voltage rating for the NCP4623HSN120T1G?
The NCP4623HSN120T1G has an absolute maximum input voltage rating of 26.0 V, with recommended continuous operation up to 24 V. This allows safe use in 24 V industrial systems and automotive environments where load-dump transients may reach 25 V. Exceeding 26 V risks permanent damage per the Absolute Maximum Ratings table in the datasheet.
Does the NCP4623HSN120T1G require external components to operate stably?
Yes - the NCP4623HSN120T1G requires two 0.1 µF ceramic capacitors: one between VIN and GND, and another between VOUT and GND, both placed as close as possible to their respective pins. These are mandatory for stability and transient response; omitting them causes oscillation or poor line/load regulation.
What is the dropout voltage of the NCP4623HSN120T1G at full 150 mA load?
The datasheet specifies dropout voltage for the 12.0 V version as 0.30–0.55 V at 20 mA. At 150 mA, measured curves (Figure 11) show ~0.45 V typical at 25°C. For design margin, use 0.55 V - meaning VIN must be ≥12.55 V to maintain regulation under full load at elevated temperature.
Can the NCP4623HSN120T1G be used with tantalum output capacitors?
No - the NCP4623HSN120T1G is optimized for ceramic capacitors ≥0.1 µF. Tantalum capacitors with high ESR can cause loop instability and oscillation, as explicitly warned in the Application Information section. Only X5R/X7R ceramic types are validated for stable operation.
How does the CE pin function on the NCP4623HSN120T1G?
The CE pin is an active-high enable input: applying ≥2.1 V turns the regulator ON; pulling ≤0.3 V disables it, reducing quiescent current to 0.1 µA typ. The pin must never float - tie to GND or controlled logic to prevent undefined output states and internal leakage paths.
NCP4623HSN120T1G 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):
- 24V
- Voltage - Output (Min/Fixed):
- 12V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.5V @ 20mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 10 µA
- Current - Supply (Max):
- -
- PSRR:
- 35dB (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
NCP4623HSN120T1G FAQ
1.How can I place an order for NCP4623HSN120T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP4623HSN120T1G 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 NCP4623HSN120T1G reliable?
The price and inventory of NCP4623HSN120T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP4623HSN120T1G is usually 5 days.
3.What payment methods are accepted for NCP4623HSN120T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP4623HSN120T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP4623HSN120T1G?
NCP4623HSN120T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP4623HSN120T1G 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 NCP4623HSN120T1G?
For technical support, including NCP4623HSN120T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP4623HSN120T1G requirements.
6.How does Aetrix verify that NCP4623HSN120T1G is sourced from the original manufacturer or authorized distributors?
All NCP4623HSN120T1G 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 NCP4623HSN120T1G meets industry standards.
7.What is the process for return or replacement of NCP4623HSN120T1G?
All NCP4623HSN120T1G units undergo pre-shipment inspection (PSI). If there is an issue with NCP4623HSN120T1G, 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 NCP4623HSN120T1G part is unused and in its original packaging.
Return procedure for NCP4623HSN120T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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