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onsemi NCP4623HMX033TCG
- Part No.:
- NCP4623HMX033TCG
- Manufacturer:
- onsemi
- Package:
- 6-XFDFN Exposed Pad
- Datasheet:
-
NCP4623HMX033TCG.pdf
- Description:
- IC REG LINEAR 3.3V 150MA 6XDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,454
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Product details
Overview
NCP4623HMX033TCG from onsemi is a 3.3 V fixed-output, 150 mA CMOS low-dropout linear regulator with wide 2 V to 24 V input range, ±2.0% output voltage accuracy, and active-high enable (CE) pin. It delivers stable power to noise-sensitive analog circuitry in space-constrained portable systems using ceramic capacitors as small as 0.1 µF.
For engineers reviewing the NCP4623HMX033TCG datasheet, pinout, applications, or equivalent options, key selection criteria include dropout voltage at 20 mA (0.20–0.40 V), thermal shutdown at 150°C, standby current of 0.1 µA typ., PSRR of 35 dB at 1 kHz, and compatibility with XDFN6 1.6×1.6 mm PCB footprint.
Technical Context
The NCP4623HMX033TCG employs a CMOS pass transistor architecture enabling ultra-low quiescent current (5 µA typ.) and fast transient response. Its internal reference and error amplifier maintain regulation across −40°C to +85°C ambient temperature with ±100 ppm/°C output voltage drift.
Protection features include fold-back current limiting (45 mA short-circuit limit), thermal shutdown with 25°C hysteresis (150°C trip / 125°C release), and peak/short-current protection. The CE pin enables precise system-level power sequencing with 2.1 V typical high-threshold and 0.3 V max low-threshold.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3 V ±2.0% - ensures reliable biasing for 3.3 V logic, ADC references, and RF front-end ICs. |
| Max Input Voltage | 24 V - supports direct connection to 12 V/24 V industrial rails and battery stacks without pre-regulation. |
| Dropout Voltage | 0.20–0.40 V at 20 mA - enables >90% efficiency at light loads and extends battery runtime in 3.3 V systems powered from single Li-ion cells. |
| Quiescent Current | 5 µA typ. - minimizes standby power loss in always-on sensor nodes and IoT edge devices. |
| PSRR | 35 dB at 1 kHz - suppresses ripple from noisy DC-DC converters feeding the LDO input. |
| Thermal Shutdown | 150°C with 25°C hysteresis - prevents permanent damage during sustained overload or poor heatsinking in sealed enclosures. |
| Package | XDFN6 1.6×1.6×0.4 mm - provides 30% smaller footprint than SOT-23-5 while maintaining 156°C/W junction-to-air thermal resistance. |
Pinout & Package
XDFN6 package (Case 711AC) with exposed thermal pad connected to GND; 0.5 mm pitch, 1.6 mm × 1.6 mm body size, 0.4 mm height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VOUT (Pin 3) | Regulated output | Delivers stable 3.3 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 heat dissipation. |
| CE (Pin 4) | Enable control | Active-high logic input; drives device ON when ≥2.1 V, OFF when ≤0.3 V; must not float. |
| 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 | Unused terminal in fixed-output variant; left unconnected per datasheet marking diagram. |
| NC (Pin 2) | No connection | Unused terminal; no internal connection - electrically isolated from die. |
Key Features
| Feature | Design Value |
|---|---|
| Stable with 0.1 µF ceramic caps | Eliminates need for larger, higher-ESR tantalum or aluminum electrolytic capacitors - reduces BOM cost and board area. |
| 0.1 µA standby current | Enables multi-year battery life in maintenance-free remote sensors powered by coin cells or primary lithium batteries. |
| Fold-back current protection | Prevents thermal runaway during output shorts by reducing both voltage and current - avoids latch-up and enables safe auto-recovery. |
| ±100 ppm/°C tempco | Maintains <±0.3% output drift over −40°C to +105°C junction range - critical for precision analog signal chains and reference supplies. |
| Pb-free XDFN6 package | Meets RoHS and JEDEC MSL3 reflow requirements - supports automated SMT assembly without lead contamination risk. |
Applications
| Industrial Sensor Node | USB-Powered Peripheral |
|---|---|
Use Scenario: Battery-operated vibration sensor with MEMS accelerometer, BLE radio, and microcontroller deployed in factory predictive maintenance. IC Role / Device Role / Timing Role: Primary 3.3 V supply for MCU, radio, and analog front-end; regulated rail for ADC reference and I²C bus. Use Value: 5 µA quiescent current extends 2× AA battery life beyond 5 years; 0.2 V dropout enables operation down to 3.5 V battery voltage. | Use Scenario: USB-powered HDMI adapter with integrated level shifters, ESD protection, and display controller ICs. IC Role / Device Role / Timing Role: Clean 3.3 V rail for digital interface logic and PLL reference; isolates noise from upstream 5 V USB VBUS. Use Value: 35 dB PSRR at 1 kHz attenuates switching noise from USB-C PD negotiation circuits; 0.1 µF ceramic stability simplifies layout near high-speed traces. |
| Automotive Cabin Camera | Home Appliance Control Board |
Use Scenario: Rear-view camera module mounted in vehicle trunk, powered from 12 V battery with wide cold-crank and load-dump transients. IC Role / Device Role / Timing Role: Post-regulator supplying image sensor, ISP, and video encoder; withstands 24 V max input during alternator surge. Use Value: 24 V absolute max rating eliminates need for external TVS clamping; thermal shutdown protects against enclosure overheating in sealed housing. | Use Scenario: Smart washing machine main control board with motor driver, touch UI, Wi-Fi SoC, and temperature sensors. IC Role / Device Role / Timing Role: Dedicated 3.3 V supply for Wi-Fi module and capacitive touch controller - isolated from noisy motor drive section. Use Value: Fold-back current protection prevents latch-up during ESD events on touch panel; XDFN6 footprint saves space on dense 4-layer control board. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-3302E/MB | 100 mA output, 6 µA IQ, SOT-23-3 package (no CE pin) | Lacks enable control and thermal shutdown; limited to low-power always-on functions | Select only if system requires minimal quiescent current and no sequencing or fault protection. |
| TLS850B2TE/V2 | 500 mA output, integrated watchdog, AEC-Q100 Grade 1, PG-TO263-7 package | Designed for automotive body electronics; includes reset generation and fail-safe monitoring | Choose for automotive applications requiring functional safety compliance and higher current capability. |
Compared with MCP1700T-3302E/MB and TLS850B2TE/V2, the NCP4623HMX033TCG offers optimal balance of 150 mA output, ultra-low standby current, enable functionality, and compact XDFN6 packaging - making it ideal for industrial and consumer portable designs where space, efficiency, and controllability are jointly critical.
Availability
NCP4623HMX033TCG is available at Aetrix Electronics and suitable for battery-powered equipment, networking infrastructure, and home appliance control boards requiring stable component supply with guaranteed long-term manufacturability.
Supply support for NCP4623HMX033TCG 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 delivering energy-efficient silicon solutions for automotive, industrial, cloud, medical, and IoT applications.
The NCP4623 series belongs to onsemi's precision analog power management portfolio, engineered specifically for wide-input, low-quiescent-current LDO applications in space- and power-constrained portable and embedded systems.
FAQ
What is the maximum input voltage rating for the NCP4623HMX033TCG?
The NCP4623HMX033TCG has an absolute maximum input voltage rating of 26.0 V, with recommended operating range from 2 V to 24 V. This allows direct integration into 12 V and 24 V industrial or automotive power domains without external pre-regulation, while maintaining safe margin against transients.
Does the NCP4623HMX033TCG require external components to operate stably?
Yes - the NCP4623HMX033TCG requires two 0.1 µF ceramic capacitors: one placed between VIN and GND, and another between VOUT and GND, both located as close as possible to their respective pins. These capacitors ensure loop stability, transient response, and noise suppression per the datasheet's application guidelines.
What is the thermal performance of the NCP4623HMX033TCG in its XDFN6 package?
The NCP4623HMX033TCG in XDFN6 package has a junction-to-air thermal resistance (RJA) of 156°C/W. At 150 mA output and 24 V input, worst-case power dissipation is ~3.15 W, resulting in ~490°C rise above ambient - confirming that practical operation requires moderate load, adequate copper pour, or derating per thermal characteristics table.
How does the CE pin function on the NCP4623HMX033TCG?
The CE pin on the NCP4623HMX033TCG is an active-high enable input. When pulled to ≥2.1 V (typ.), the device regulates; when pulled to ≤0.3 V (max), it enters standby mode drawing only 0.1 µA. Leaving the CE pin floating is prohibited - it must be actively driven or pulled to GND via resistor to ensure predictable operation.
Can the NCP4623HMX033TCG be used with adjustable output versions like NCP4623HMXADJTCG?
No - the NCP4623HMX033TCG is a fixed 3.3 V output variant with NC pins replacing the ADJ function. It is not pin-compatible with adjustable versions, which route the ADJ pin to Pin 5 and require external resistor dividers. Substitution would require PCB redesign and firmware validation due to different pin mapping and feedback topology.
NCP4623HMX033TCG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 6-XFDFN Exposed Pad
- 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):
- 3.3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.4V @ 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:
- 6-XDFN (1.6x1.6)
NCP4623HMX033TCG FAQ
1.How can I place an order for NCP4623HMX033TCG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP4623HMX033TCG 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 NCP4623HMX033TCG reliable?
The price and inventory of NCP4623HMX033TCG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP4623HMX033TCG is usually 5 days.
3.What payment methods are accepted for NCP4623HMX033TCG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP4623HMX033TCG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP4623HMX033TCG?
NCP4623HMX033TCG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP4623HMX033TCG 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 NCP4623HMX033TCG?
For technical support, including NCP4623HMX033TCG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP4623HMX033TCG requirements.
6.How does Aetrix verify that NCP4623HMX033TCG is sourced from the original manufacturer or authorized distributors?
All NCP4623HMX033TCG 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 NCP4623HMX033TCG meets industry standards.
7.What is the process for return or replacement of NCP4623HMX033TCG?
All NCP4623HMX033TCG units undergo pre-shipment inspection (PSI). If there is an issue with NCP4623HMX033TCG, 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 NCP4623HMX033TCG part is unused and in its original packaging.
Return procedure for NCP4623HMX033TCG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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