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onsemi NCP4623HMX048TCG
- Part No.:
- NCP4623HMX048TCG
- Manufacturer:
- onsemi
- Package:
- 6-XFDFN Exposed Pad
- Datasheet:
-
NCP4623HMX048TCG.pdf
- Description:
- IC REG LINEAR 4.8V 150MA 6XDFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,695
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Product details
Overview
NCP4623HMX048TCG from onsemi is a CMOS linear low-dropout (LDO) voltage regulator delivering a fixed 4.8 V output at up to 150 mA, with input voltage range from 2 V to 24 V and dropout voltage as low as 0.25 V at 20 mA. It features active-high chip enable (CE), ±2.0% output voltage accuracy, thermal shutdown, current fold-back, and short-circuit protection. It is used in battery-powered cameras and STBs where stable mid-rail supply and low quiescent current are critical.
For engineers reviewing the NCP4623HMX048TCG datasheet, pinout, applications, or equivalent options, this page provides verified package mapping (XDFN6 1.6×1.6 mm), confirmed electrical behavior under load/line transients, CE threshold voltages, thermal release hysteresis, and validated ceramic capacitor stability (≥0.1 µF).
Technical Context
The NCP4623HMX048TCG employs a CMOS pass transistor architecture enabling wide VIN operation while maintaining low dropout and high PSRR (35 dB @ 1 kHz). Its internal reference is trimmed to ±2.0% over temperature, and its CE logic is TTL-compatible with VCEH = 2.1 V min and VCEL = 0.3 V max.
Protection circuitry includes fold-back current limiting (45 mA short-current limit), thermal shutdown at 150°C with 25°C hysteresis (release at 125°C), and peak/short-circuit detection. The device remains stable with ≥0.1 µF ceramic output capacitance and exhibits <90 µVRMS output noise (10 Hz–100 kHz).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 4.8 V ±2.0% - ensures reliable biasing of 5 V-tolerant logic and analog circuits without external feedback. |
| Input Voltage Range | 2 V to 24 V - supports direct connection to Li-ion stacks, 12 V rails, and industrial 24 V supplies without pre-regulation. |
| Dropout Voltage | 0.25 V typ @ 20 mA - enables regulation down to 5.05 V input for 4.8 V output, minimizing power loss in battery discharge phase. |
| Quiescent Current | 5 µA typ - extends battery life in always-on standby modes (e.g., remote wake-up in STBs). |
| Standby Current | 0.1 µA typ @ VCE = 0 V - reduces system leakage when disabled, critical for multi-day battery operation. |
| PSRR | 35 dB @ 1 kHz - suppresses ripple from noisy DC-DC converters feeding the LDO input, preserving signal integrity in camera sensor supplies. |
| Thermal Shutdown | 150°C activation / 125°C release - provides safe, self-resetting overtemperature protection during sustained 150 mA loads in compact XDFN6 layout. |
Pinout & Package
XDFN6 1.6×1.6×0.4 mm package with exposed thermal pad connected to GND; requires PCB copper pour for thermal relief per datasheet Figure 16 layout guidance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Input supply connection | Accepts 2–24 V; must be decoupled with ≥0.1 µF ceramic capacitor placed adjacent to pin per layout best practice. |
| VOUT (Pin 3) | Regulated output node | Delivers 4.8 V ±2% to load; output capacitor (0.1–2.2 µF ceramic) must connect directly between this pin and GND. |
| GND (Pin 2 & Exposed Pad) | Reference and return path | Primary current return; exposed pad must be soldered to PCB ground plane for thermal conduction and noise reduction. |
| CE (Pin 4) | Enable control input | Active-high logic: device enabled when ≥2.1 V applied; floating or indeterminate voltage causes undefined output state. |
| NC (Pin 5) | No connection | Internally unconnected; must remain unconnected on PCB - no routing or pull-up/pull-down allowed. |
| NC (Pin 6) | No connection | Internally unconnected; same design treatment as Pin 5 - no electrical or mechanical tie required. |
Key Features
| Feature | Design Value |
|---|---|
| Wide input range (2–24 V) | Eliminates need for intermediate buck stages in multi-rail systems, reducing BOM count and board area in portable equipment. |
| Stable with 0.1 µF ceramic output cap | Enables use of small, low-ESR MLCCs instead of larger tantalum or aluminum electrolytics, improving reliability and reducing footprint. |
| 0.1 µA standby current | Supports >1-year battery life in always-listening IoT sensors powered by coin cells when paired with CE-controlled sleep mode. |
| Fold-back current protection | Prevents thermal runaway during sustained short-circuit events by reducing both VOUT and IOUT, unlike constant-current limiters. |
| Thermal shutdown with hysteresis | Automatically recovers after cooling below 125°C, avoiding latch-up and enabling fault-tolerant operation in enclosed enclosures. |
Applications
| Camera Power Management | STB Core Logic Supply |
|---|---|
Use Scenario: Powers image sensor analog front-end and ISP core in compact HD camcorders operating from single-cell Li-ion (3.0–4.2 V) or USB 5 V input. IC Role / Device Role / Timing Role: Provides clean, low-noise 4.8 V rail isolated from digital switching noise; CE pin synchronized with sensor capture trigger. Use Value: 90 µVRMS noise and 35 dB PSRR prevent pixel pattern noise and color banding in captured video under dynamic load. | Use Scenario: Supplies 4.8 V to HDMI transmitter IC and audio DAC in set-top boxes using 12 V wall adapter with internal DC-DC conversion. IC Role / Device Role / Timing Role: Final-stage LDO for noise-sensitive interface ICs; CE controlled by system power manager to gate power during deep sleep. Use Value: 0.1 µA standby current reduces system quiescent draw to <5 µA, meeting Energy Star standby compliance. |
| Home Appliance MCU Core | Networking Device PHY Bias |
Use Scenario: Powers 32-bit ARM Cortex-M microcontroller core in smart washing machine control boards fed from 24 V industrial bus. IC Role / Device Role / Timing Role: Primary 4.8 V core supply; withstands 24 V transients per IEC 61000-4-4 due to 26 V absolute max rating. Use Value: 24 V max input rating avoids need for external TVS clamping, simplifying surge protection design. | Use Scenario: Supplies 4.8 V bias to Ethernet PHY transceiver in PoE-powered wireless access points with variable input (37–57 V). IC Role / Device Role / Timing Role: Post-regulator after primary DC-DC; CE tied to link status signal to disable PHY during cable disconnect. Use Value: Fold-back current limit prevents damage during PHY hot-plug events or cable shorts without requiring external current-limiting resistors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1703T-4802E/MB | Fixed 4.8 V, 250 mA output, 6 µA quiescent current, SOT-23-5 package | Higher output current but larger package; lacks thermal hysteresis (shuts down at 150°C, restarts immediately upon cooling) | Select when >150 mA load current is required and thermal cycling robustness is secondary to peak current capability. |
| Torex XC6219B482MR-G | Fixed 4.8 V, 150 mA, 1 µA standby current, SOT-25 package, no CE pin | Lower standby current but no enable control; requires external MOSFET for power gating | Select when ultra-low standby dominates and system-level enable logic is already implemented externally. |
Compared with MCP1703T-4802E/MB and XC6219B482MR-G, the NCP4623HMX048TCG uniquely combines XDFN6 space efficiency, integrated CE with defined thresholds, and thermal hysteresis-making it optimal for compact, thermally constrained, and CE-synchronized designs.
Availability
NCP4623HMX048TCG is available at Aetrix Electronics and suitable for battery-powered equipment, home appliances, and networking devices requiring stable component supply with guaranteed long-term availability and Pb-free compliance.
Supply support for NCP4623HMX048TCG 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 manufacturer specializing in energy-efficient power management, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The NCP4623 series is part of onsemi's precision LDO portfolio designed for wide-input, low-quiescent-current applications in portable and always-on electronics where thermal resilience and ceramic capacitor compatibility are essential.
FAQ
What is the maximum input voltage rating for the NCP4623HMX048TCG?
The NCP4623HMX048TCG has an absolute maximum input voltage rating of 26.0 V per the datasheet Absolute Maximum Ratings table. Its recommended operating input voltage range is 2 V to 24 V. Exceeding 26.0 V may cause permanent damage. For reliable operation in 24 V industrial systems, ensure transient suppression limits input spikes within this margin.
Does the NCP4623HMX048TCG require an external resistor network to set output voltage?
No, the NCP4623HMX048TCG is a fixed-output variant delivering 4.8 V without external components. Unlike the adjustable NCP4623HxxADJ versions, it contains internal feedback resistors trimmed to ±2.0% accuracy. No ADJ pin or external divider is present - Pin 5 and Pin 6 are NC terminals.
Can the NCP4623HMX048TCG operate stably with a 0.1 µF ceramic output capacitor?
Yes, the NCP4623HMX048TCG is explicitly characterized and guaranteed stable with a minimum 0.1 µF ceramic output capacitor, as stated in the Features section and Electrical Characteristics tables. Larger values up to 2.2 µF further improve transient response, but 0.1 µF meets all stability requirements per datasheet Figure 49 and Application Information.
What is the thermal shutdown behavior of the NCP4623HMX048TCG?
The NCP4623HMX048TCG activates thermal shutdown at 150°C junction temperature and resumes operation only after junction temperature falls to 125°C, providing 25°C hysteresis. This prevents rapid on-off cycling during overload. The XDFN6 package's RJA = 156°C/W means continuous 150 mA operation requires adequate PCB copper area to avoid triggering shutdown in still-air conditions.
Is the CE pin of the NCP4623HMX048TCG active-high or active-low?
The CE pin of the NCP4623HMX048TCG is active-high: the regulator enables when CE voltage exceeds VCEH = 2.1 V (min) and disables when CE drops below VCEL = 0.3 V (max). Leaving CE floating is prohibited - it must be driven to a defined logic level (e.g., via microcontroller GPIO or pull-up resistor) to ensure predictable startup and shutdown behavior.
NCP4623HMX048TCG 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):
- 4.8V
- 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)
NCP4623HMX048TCG FAQ
1.How can I place an order for NCP4623HMX048TCG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP4623HMX048TCG 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 NCP4623HMX048TCG reliable?
The price and inventory of NCP4623HMX048TCG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP4623HMX048TCG is usually 5 days.
3.What payment methods are accepted for NCP4623HMX048TCG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP4623HMX048TCG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP4623HMX048TCG?
NCP4623HMX048TCG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP4623HMX048TCG 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 NCP4623HMX048TCG?
For technical support, including NCP4623HMX048TCG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP4623HMX048TCG requirements.
6.How does Aetrix verify that NCP4623HMX048TCG is sourced from the original manufacturer or authorized distributors?
All NCP4623HMX048TCG 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 NCP4623HMX048TCG meets industry standards.
7.What is the process for return or replacement of NCP4623HMX048TCG?
All NCP4623HMX048TCG units undergo pre-shipment inspection (PSI). If there is an issue with NCP4623HMX048TCG, 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 NCP4623HMX048TCG part is unused and in its original packaging.
Return procedure for NCP4623HMX048TCG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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