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onsemi NCP4626HMX030TCG
- Part No.:
- NCP4626HMX030TCG
- Manufacturer:
- onsemi
- Package:
- 6-XFDFN Exposed Pad
- Datasheet:
-
NCP4626HMX030TCG.pdf
- Description:
- IC REG LINEAR 3V 300MA 6XDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,992
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Product details
Overview
NCP4626HMX030TCG from onsemi is a CMOS 300 mA 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 NCP4626HMX030TCG 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 protection, thermal shutdown at 150°C, and compatibility with 2.2 µF input / 4.7 µF output ceramic capacitors.
Technical Context
The NCP4626HMX030TCG integrates a precision bandgap reference, fold-back current limiting, reverse current detection circuitry, and thermal shutdown. 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 short-circuit protection, stable operation with minimal external components, and reverse current blocking when VOUT > VIN - critical for battery backup circuits where backfeed must be prevented without external diodes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0 V ±1.5% (fast mode), ±2.5% (low-power mode) |
| Max Output Current | 300 mA continuous; supports load transients up to 300 mA with <±30 mV regulation deviation |
| Dropout Voltage | 550 mV typ. at 300 mA, 3.0 V output, fast mode; enables operation with VIN as low as 3.55 V |
| Quiescent Current | 6 µA typ. in low-power mode; reduces standby power in always-on systems |
| PSRR | 60 dB at 1 kHz (5.0 V version); suppresses ripple from noisy DC-DC stages |
| Reverse Current | ≤0.1 µA when VOUT > VIN; eliminates need for external blocking diode in backup paths |
| Thermal Shutdown | Activates at 150°C junction temperature; auto-restarts at 130°C, preventing permanent damage |
Pinout & Package
Package: XDFN6 (1.6 mm × 1.6 mm, 0.5 mm pitch), Pb-free, exposed thermal pad connected to GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (ECO) | Mode select input | H = fast mode (low dropout, high PSRR); L = low-power mode (6 µA IQ); must not float |
| 3 (VIN) | Input supply | Accepts 3.5–16 V; absolute max 18 V; requires 2.2 µF ceramic decoupling |
| 4 (VOUT) | Regulated output | 3.0 V fixed; stable with ≥4.7 µF ceramic output capacitor |
| 5 (GND) | Ground reference | Common return for VIN, VOUT, CE, ECO; connects to exposed thermal pad |
| 6 (CE) | Chip enable | Active-high logic; internal pull-down; tie to VIN if always-on operation required |
| 2 (NC) | No connection | Not bonded; no electrical function; leave unconnected |
Key Features
| Feature | Design Value |
|---|---|
| Reverse current protection | Blocks backfeed when VOUT > VIN (e.g., during battery switchover), eliminating external diode |
| Dual-mode ECO control | Enables runtime optimization: fast mode for dynamic loads, low-power mode for standby |
| Fold-back current limiting | Reduces output current and voltage during overload, preventing thermal runaway |
| Stable with small ceramics | Guaranteed stability using only 2.2 µF input and 4.7 µF output X7R/X5R MLCCs |
| Thermal shutdown with hysteresis | Shuts down at 150°C, restarts at 130°C - prevents cycling under marginal heatsinking |
Applications
| Digital Home Appliances | Audio Visual Equipment |
|---|---|
Use Scenario: Powering microcontrollers and sensors in smart refrigerators or washing machines with variable input rails. IC Role / Device Role / Timing Role: Primary 3.0 V LDO supplying logic and interface ICs; reverse protection prevents backfeed from USB or auxiliary supplies. Use Value: Enables single-rail design with robust fault tolerance and <6 µA standby draw in sleep mode. | Use Scenario: Regulating 3.0 V for HDMI receiver ICs and audio DACs in AV receivers subject to line transients. IC Role / Device Role / Timing Role: Low-noise post-regulator after DC-DC converter; PSRR >60 dB at 1 kHz suppresses switching noise. Use Value: Maintains signal integrity by reducing power-supply-induced jitter in high-resolution audio/video paths. |
| Battery Backup Circuits | Industrial Control Interfaces |
Use Scenario: Providing seamless 3.0 V supply during main power loss in security cameras or IoT gateways. IC Role / Device Role / Timing Role: Reverse-current-protected LDO that accepts either main or backup source without diode OR-ing. Use Value: Eliminates voltage drop and heat of Schottky diodes, extending backup runtime and simplifying layout. | Use Scenario: Powering isolated RS-485 transceivers and GPIO expanders in PLC I/O modules with wide input variation. IC Role / Device Role / Timing Role: Input-tolerant (3.5–16 V) LDO delivering stable 3.0 V despite fluctuating 12 V field bus voltage. Use Value: Ensures reliable communication during brownouts or surges without requiring upstream DC-DC redesign. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1703T-3002E/MB | 300 mA, 3.0 V fixed, 6 µA IQ, but no ECO mode or reverse current protection | Lacks dual-mode optimization and backfeed blocking - requires external diode for backup use | Choose when ECO flexibility and reverse protection are unnecessary and cost is primary driver |
| Torex XC6206P302MR-G | 300 mA, 3.0 V, 1 µA IQ, no ECO pin, no reverse current protection, lower PSRR (45 dB @ 1 kHz) | Ultra-low IQ suits long-life battery apps, but unsuitable for VOUT>VIN scenarios or noise-sensitive analog loads | Prefer for coin-cell-powered devices where reverse protection and PSRR are not required |
Compared with MCP1703T-3002E/MB and XC6206P302MR-G, the NCP4626HMX030TCG uniquely combines reverse current blocking, selectable fast/low-power modes, and 60 dB PSRR - making it optimal for mixed-signal systems with backup paths and dynamic load profiles.
Availability
NCP4626HMX030TCG is available at Aetrix Electronics and suitable for digital home appliances, audio visual equipment, and battery backup circuits requiring stable component supply, RoHS-compliant packaging, and long-term industrial availability.
Supply support for NCP4626HMX030TCG 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 (Nasdaq: ON) is a global semiconductor leader delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The NCP4626 series belongs to onsemi's precision analog LDO portfolio, designed specifically for space-constrained, low-noise, and fault-resilient power management in consumer and industrial edge devices.
FAQ
What is the maximum input voltage rating for the NCP4626HMX030TCG?
The NCP4626HMX030TCG has an absolute maximum input voltage rating of 18.0 V. Operation beyond this level risks permanent damage. The recommended operating input range is 3.5 V to 16.0 V, ensuring proper regulation and thermal margin across temperature and load conditions. This rating applies regardless of ECO or CE state.
Does the NCP4626HMX030TCG provide reverse current protection, and how does it work?
Yes, the NCP4626HMX030TCG provides integrated reverse current protection. When VOUT exceeds VIN (e.g., during battery switchover), its 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 and prevents backfeed into upstream supplies - a key feature confirmed in the device's Absolute Maximum Ratings and Application Information sections.
What are the key differences between fast mode and low-power mode on the NCP4626HMX030TCG?
In fast mode (ECO = VIN), the NCP4626HMX030TCG delivers 550 mV typical dropout at 300 mA and ±1.5% output accuracy, optimized for dynamic loads. In low-power mode (ECO = GND), quiescent current drops to 6 µA typ., but dropout rises to 700 mV typ. and accuracy degrades to ±2.5%. These trade-offs are explicitly defined in the Electrical Characteristics table and validated across temperature.
Can the NCP4626HMX030TCG operate with ceramic capacitors, and what values are required?
Yes, the NCP4626HMX030TCG is stable with ceramic capacitors: a minimum 2.2 µF X7R/X5R ceramic capacitor on VIN and 4.7 µF on VOUT. These values are specified in the Electrical Characteristics table and validated in the Application Information section. Larger values improve transient response and PSRR, but are not required for basic stability.
Is the exposed thermal pad on the NCP4626HMX030TCG package electrically connected, and how should it be handled?
Yes, the exposed thermal pad on the NCP4626HMX030TCG's XDFN6 package is internally connected to GND. The datasheet states "Tab is connected to GND" and recommends connecting it to the PCB ground plane for optimal thermal performance and EMI reduction. However, leaving it unconnected is acceptable per the manufacturer's note - though thermal resistance increases from 156°C/W to >200°C/W in that case.
NCP4626HMX030TCG 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):
- 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:
- 6-XDFN (1.6x1.6)
NCP4626HMX030TCG FAQ
1.How can I place an order for NCP4626HMX030TCG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP4626HMX030TCG 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 NCP4626HMX030TCG reliable?
The price and inventory of NCP4626HMX030TCG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP4626HMX030TCG is usually 5 days.
3.What payment methods are accepted for NCP4626HMX030TCG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP4626HMX030TCG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP4626HMX030TCG?
NCP4626HMX030TCG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP4626HMX030TCG 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 NCP4626HMX030TCG?
For technical support, including NCP4626HMX030TCG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP4626HMX030TCG requirements.
6.How does Aetrix verify that NCP4626HMX030TCG is sourced from the original manufacturer or authorized distributors?
All NCP4626HMX030TCG 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 NCP4626HMX030TCG meets industry standards.
7.What is the process for return or replacement of NCP4626HMX030TCG?
All NCP4626HMX030TCG units undergo pre-shipment inspection (PSI). If there is an issue with NCP4626HMX030TCG, 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 NCP4626HMX030TCG part is unused and in its original packaging.
Return procedure for NCP4626HMX030TCG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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