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onsemi NCP623MN-28R2G
- Part No.:
- NCP623MN-28R2G
- Manufacturer:
- onsemi
- Package:
- 6-VDFN Exposed Pad
- Datasheet:
-
NCP623MN-28R2G.pdf
- Description:
- IC REG LINEAR 2.8V 150MA 6DFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
NCP623MN-28R2G from onsemi is a 2.8 V, 150 mA ultra-low-noise low-dropout linear regulator in DFN6 (3×3 mm) package, featuring 137 mV typical dropout at 100 mA, 25 µVRMS output noise (100 Hz–100 kHz) with 10 nF bypass capacitor, and logic-level ON/OFF control - ideal for battery-powered portable systems requiring stable, quiet voltage regulation.
For engineers reviewing the NCP623MN-28R2G datasheet, pinout, applications, or equivalent options, key selection considerations include its 2.8 V fixed output, −40°C to +85°C operating range, thermal shutdown protection, compatibility with ceramic output capacitors (0–3.0 Ω ESR), and ultra-low quiescent current (170 µA in ON mode, 100 nA in OFF mode).
Technical Context
The NCP623MN-28R2G employs a bandgap reference-based LDO architecture with internal antisaturation and current-limit protection. Its control loop maintains tight line regulation (−90 dB typical) and load regulation (20 mV typical at 150 mA), enabling stable operation under dynamic load and input transients.
It integrates thermal shutdown (150°C trip point), short-circuit protection, and TTL/CMOS-compatible ON/OFF control. The device supports external bypass capacitor filtering (10 nF optimal for 25 µVRMS noise), and operates with input voltages up to 12 V while sustaining regulation down to 137 mV VIN–VOUT differential at 100 mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.8 V ±2% (2.74–2.86 V at 25°C, 2.70–2.90 V over −40°C to +85°C) |
| Max Output Current | 150 mA continuous; current limit ≥175 mA ensures safe overload handling |
| Dropout Voltage | 137 mV typical at 100 mA - enables extended battery runtime in low-VIN conditions |
| Output Noise | 25 µVRMS (100 Hz–100 kHz) with 10 nF bypass capacitor - suitable for RF, audio, and precision analog circuits |
| Quiescent Current | 170 µA typical in ON state (no load); 100 nA in OFF state - critical for long-term battery life |
| Ripple Rejection | −70 dB at 1.0 kHz - suppresses switching noise from upstream DC/DC converters |
| Operating Temp Range | −40°C to +85°C - qualified for industrial and consumer portable environments |
Pinout & Package
Package: DFN6 (3 mm × 3 mm, 0.75 mm height), Case 488AE, exposed thermal pad, Pb-free, RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VIN | Input power supply | Accepts 2.9 V to 12 V; must be decoupled with ≥1.0 µF ceramic capacitor near pin |
| 2 - GND | Ground reference | Common return for input, output, and bypass; connects to exposed thermal pad for thermal dissipation |
| 3 - VOUT | Regulated output | Delivers stable 2.8 V; supports 0–3.0 Ω ESR output capacitors (≥1.0 µF ceramic recommended) |
| 4 - ON/OFF | Enable/disable control | TTL/CMOS-compatible; <0.3 V = OFF (100 nA IQ), >2.2 V = ON (170 µA IQ); no pull-up required |
| 5 - GND | Second ground terminal | Reduces ground impedance; must be connected to same ground plane as Pin 2 and exposed pad |
| 6 - Bypass | Noise filter node | Connects to 10 nF capacitor to reduce output noise to 25 µVRMS; optional for faster startup (20 µs without) |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low output noise | 25 µVRMS (100 Hz–100 kHz) with 10 nF bypass - meets stringent requirements of RF receivers and ADC reference supplies |
| Low dropout performance | 137 mV typical at 100 mA - extends usable battery voltage range in single-cell Li-ion or alkaline systems |
| Sub-µA shutdown current | 100 nA OFF-state IQ - preserves battery charge during system sleep modes |
| Ceramic capacitor compatibility | Stable with 0–3.0 Ω ESR output capacitors - eliminates need for costly tantalum or polymer caps |
| Integrated protections | Thermal shutdown (150°C) and current limiting (≥175 mA) - prevents damage during fault conditions without external circuitry |
Applications
| Wireless Headset Power Management | Portable Medical Sensor Node |
|---|---|
|
Use Scenario: Compact Bluetooth headset requiring clean 2.8 V supply for RF transceiver and MEMS microphone preamp. IC Role / Device Role / Timing Role: Primary LDO delivering regulated 2.8 V from 3.0–4.2 V Li-ion battery; ON/OFF controlled by host MCU to manage power states. Use Value: 25 µVRMS noise prevents audible hiss in audio path; 137 mV dropout extends talk time by >12% vs. higher-dropout alternatives. |
Use Scenario: Wearable ECG patch powered by coin cell, needing stable low-noise bias for analog front-end and ADC. IC Role / Device Role / Timing Role: Low-quiescent LDO supplying 2.8 V to signal chain; enabled only during measurement bursts to conserve energy. Use Value: 100 nA OFF-state current enables multi-month shelf life; ceramic capacitor compatibility reduces BOM cost and board area. |
| Smart Remote Control IC Supply | IoT Edge Node Microcontroller Core |
|
Use Scenario: Sub-GHz remote with 2.8 V logic rail for MCU and transceiver, powered by two AA batteries. IC Role / Device Role / Timing Role: Main voltage regulator enabling deep-sleep operation; ON/OFF synchronized with button press wake-up events. Use Value: 170 µA ON-state IQ minimizes active-mode drain; −70 dB ripple rejection suppresses noise from IR LED switching. |
Use Scenario: Battery-operated environmental sensor node using ARM Cortex-M0+ MCU with 2.8 V core requirement. IC Role / Device Role / Timing Role: Core power regulator feeding MCU VDD and integrated ADC/DAC; bypassed for lowest noise during sampling. Use Value: Tight load regulation (20 mV at 150 mA) ensures consistent digital timing across load transients; DFN6 footprint saves space in compact PCB layout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-noise LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700-2802E/TO | 2.8 V fixed, 250 mA, 6 µA IQ, 170 mV dropout @ 250 mA, no bypass pin, SOIC-8 package | Larger footprint, higher dropout, no ultra-low-noise capability (80 µVRMS) | Choose for cost-sensitive, non-noise-critical applications where SOIC-8 is acceptable and higher IQ is tolerable. |
| TLC7701QD | 2.8 V fixed, 100 mA, 12 µA IQ, 350 mV dropout @ 100 mA, no bypass option, SOIC-8, automotive-grade | Lower current, higher dropout, no noise optimization - designed for basic reset supervisor + LDO integration | Prefer when AEC-Q100 qualification is mandatory and ultra-low noise is not required; avoid for RF/audio use cases. |
Compared with MCP1700-2802E/TO and TLC7701QD, the NCP623MN-28R2G delivers superior noise performance (25 µVRMS vs. ≥80 µVRMS), lower dropout (137 mV vs. ≥170 mV), and dedicated bypass functionality - making it the only viable choice for noise-sensitive portable electronics where space, battery life, and signal integrity are jointly constrained.
Availability
NCP623MN-28R2G is available at Aetrix Electronics and suitable for wireless headsets, portable medical sensors, smart remotes, and IoT edge nodes requiring stable component supply with guaranteed long-term manufacturability and consistent parametric performance.
Supply support for NCP623MN-28R2G 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 specializing in energy-efficient power management, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The NCP623MN-28R2G belongs to onsemi's NCP623 ultra-low-noise LDO family, engineered specifically for portable, battery-powered applications where minimal output noise, low quiescent current, and small form factor are essential design constraints.
FAQ
What is the output voltage tolerance of the NCP623MN-28R2G over temperature?
The NCP623MN-28R2G delivers a nominal 2.8 V output with ±2% initial tolerance at 25°C. Over the full operating range (−40°C to +85°C), the output remains within 2.70 V to 2.90 V at 100 mA load, as confirmed by electrical characteristics tables in the official datasheet. This stability is achieved via precision bandgap reference and robust internal compensation.
Does the NCP623MN-28R2G require an external bypass capacitor to meet its 25 µVRMS noise specification?
Yes - the 25 µVRMS output noise (100 Hz–100 kHz) specified for the NCP623MN-28R2G requires a 10 nF ceramic capacitor connected to the Bypass pin. Without it, noise rises to 65 µVRMS. The datasheet confirms this dependency in Figures 6–7 and Section "Noise Performances", and explicitly states "With Cbypass = 10 nF" for the 25 µVRMS value.
Can the NCP623MN-28R2G operate with zero-ESR ceramic output capacitors?
Yes - the NCP623MN-28R2G is explicitly designed to remain stable with ceramic output capacitors having ESR from 0 Ω up to 3.0 Ω, as stated in both the Features list and Application Hints section. Stability is verified across temperature and load in Figures 26–31, confirming unconditional compatibility with standard X5R/X7R MLCCs.
What is the maximum input voltage rating for the NCP623MN-28R2G?
The absolute maximum input voltage for the NCP623MN-28R2G is 12 V, per the "Maximum Ratings" table on page 2 of the datasheet. Operation above this level risks permanent damage. For reliable long-term use, input should be kept ≤12 V and derated per thermal limits - e.g., at 150 mA load and 25°C ambient, max practical VIN is ~6.5 V to stay within thermal limits.
Is the NCP623MN-28R2G pin-compatible with other variants in the NCP623 family?
Yes - all NCP623 variants (e.g., NCP623MN-25R2G, NCP623MN-33R2G) share identical DFN6 (3×3 mm) package, pinout, and footprint (Case 488AE). The only differences are output voltage and top-side marking; electrical behavior, thermal design, and PCB layout are fully interchangeable across the family.
NCP623MN-28R2G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 6-VDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 12V
- Voltage - Output (Min/Fixed):
- 2.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.26V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 200 µA
- Current - Supply (Max):
- -
- PSRR:
- 70dB (1kHz)
- Control Features:
- Enable
- Protection Features:
- Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-DFN (3x3)
NCP623MN-28R2G FAQ
1.How can I place an order for NCP623MN-28R2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP623MN-28R2G 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 NCP623MN-28R2G reliable?
The price and inventory of NCP623MN-28R2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP623MN-28R2G is usually 5 days.
3.What payment methods are accepted for NCP623MN-28R2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP623MN-28R2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP623MN-28R2G?
NCP623MN-28R2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP623MN-28R2G 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 NCP623MN-28R2G?
For technical support, including NCP623MN-28R2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP623MN-28R2G requirements.
6.How does Aetrix verify that NCP623MN-28R2G is sourced from the original manufacturer or authorized distributors?
All NCP623MN-28R2G 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 NCP623MN-28R2G meets industry standards.
7.What is the process for return or replacement of NCP623MN-28R2G?
All NCP623MN-28R2G units undergo pre-shipment inspection (PSI). If there is an issue with NCP623MN-28R2G, 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 NCP623MN-28R2G part is unused and in its original packaging.
Return procedure for NCP623MN-28R2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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