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onsemi NCP2860DMADJR2G
- Part No.:
- NCP2860DMADJR2G
- Manufacturer:
- onsemi
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
NCP2860DMADJR2G.pdf
- Description:
- IC REG LIN POS ADJ 300MA 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,248
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Product details
Overview
NCP2860DMADJR2G from onsemi is an adjustable-output, 300 mA low-noise, low-dropout linear regulator in Micro8 package, delivering 1.25 V to 5.80 V output with 60 µVrms noise (10 Hz–100 kHz), 150 mV dropout at 300 mA, and integrated FAULT indicator - designed for audio amplifier drivers and noise-sensitive portable power rails.
For engineers reviewing the NCP2860DMADJR2G datasheet, pinout, applications, or equivalent options, key selection criteria include programmable output voltage range, ultra-low shutdown current (10 nA), thermal/short-circuit protection, PSRR of 60 dB @ 1 kHz, and Micro8 footprint compatibility with space-constrained handheld designs.
Technical Context
The NCP2860DMADJR2G uses a P-channel MOSFET pass device enabling near-zero gate drive current and sub-µA quiescent operation during regulation. Its transconductance error amplifier maintains output stability without external compensation, while the SET pin accepts resistor-divider feedback to program output voltage via internal 1.244 V reference.
Fault detection monitors input-to-output differential voltage relative to load current, pulling the open-drain FAULT pin low when dropout conditions threaten regulation. Shutdown mode disables bias circuitry and reduces total supply current to 10 nA, with hysteresis-enabled STDWN pin threshold (0.63 V to 2.65 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage Range | 1.25 V to 5.80 V - programmable via external resistor divider on SET pin |
| Max Output Current | 300 mA - sufficient for audio amplifiers and RF front-end biasing |
| Dropout Voltage | 150 mV @ 300 mA - enables operation from 3.0 V input to 2.77 V output rail |
| Output Noise | 60 µVrms (10 Hz–100 kHz) - preserves signal integrity in analog audio paths |
| PSRR | 60 dB @ 1 kHz - suppresses switching noise from upstream DC/DC converters |
| Shutdown Current | 10 nA - extends battery life in always-on portable systems |
| Thermal Shutdown | 170°C threshold with 30°C hysteresis - prevents permanent damage during sustained overload |
Pinout & Package
Package: Micro8 (Case 846A), Pb-free, surface-mount, 3.0 mm × 3.0 mm footprint with 0.65 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4 - OUT | Regulated output node | Delivers stable voltage; requires ≥2.2 µF low-ESR capacitor for stability |
| 2 - IN | Input power supply connection | Accepts 3.0–6.0 V; bypassed with 2.2 µF capacitor to reduce ripple |
| 3 - GND | Analog and power ground reference | Common return path for feedback, bias, and load current |
| 5 - SET | Feedback reference input | Connects to resistor divider to set output; leakage ≤200 nA minimizes programming error |
| 6 - N.C. | No-connect terminal | Not internally bonded; must remain unconnected per datasheet |
| 7 - STDWN | Active-low enable/shutdown control | Pull low to enter 10 nA shutdown; hysteresis prevents chatter near threshold |
| 8 - FAULT | Open-drain fault indicator | Sinks current when dropout occurs; requires external pull-up for logic-level signaling |
Key Features
| Feature | Design Value |
|---|---|
| Adjustable output voltage | 1.25–5.80 V via two-resistor divider on SET pin, referenced to 1.244 V internal bandgap |
| Low-noise regulation | 60 µVrms noise (10 Hz–100 kHz) enables clean power for audio DACs and op-amps |
| Integrated fault reporting | Open-drain FAULT pin asserts low when VIN−VOUT falls below dynamic dropout threshold |
| Soft-start behavior | Controlled 60–80 µs startup time prevents inrush current spikes into large output capacitors |
| Robust protection suite | Thermal shutdown (170°C), short-circuit current limit (465 mA typ), and foldback during startup |
Applications
| Cellular Phone Power Management | Handheld Instrument Bias Rails |
|---|---|
Use Scenario: Providing clean, low-noise bias to RF transceivers and audio codecs in LTE/5G smartphones with tight PCB area constraints. IC Role / Device Role / Timing Role: Primary LDO for sensitive analog subsystems, replacing noisier switching regulators in final-stage filtering. Use Value: 60 µVrms noise and 60 dB PSRR prevent AM/FM receiver desensitization and audio SNR degradation. | Use Scenario: Supplying precision voltage references and sensor interface ICs in portable multimeters and oscilloscopes. IC Role / Device Role / Timing Role: Adjustable LDO generating 3.3 V or 5.0 V rails from single-cell Li-ion (3.0–4.2 V) input. Use Value: 150 mV dropout allows full regulation down to 3.0 V input, maximizing usable battery capacity. |
| Audio Amplifier Driver | Wearable Device Core Logic |
Use Scenario: Powering Class AB headphone amplifiers where supply ripple directly modulates output signal. IC Role / Device Role / Timing Role: Low-noise post-regulator downstream of buck converter, decoupling digital switching noise. Use Value: 60 µVrms noise ensures >100 dB THD+N performance; FAULT pin alerts host MCU of brownout risk. | Use Scenario: Delivering stable 1.8 V core voltage to Bluetooth SoCs and MEMS sensors in hearables and fitness trackers. IC Role / Device Role / Timing Role: Always-on LDO with 10 nA shutdown current, enabling multi-week standby battery life. Use Value: Ultra-low shutdown current eliminates parasitic drain; Micro8 package fits <10 mm² board area budgets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar adjustable-output LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSP53025DRVR | Fixed 2.5 V output only; 200 mA max; 35 µVrms noise; no FAULT pin | Lacks programmability and fault reporting; suited for non-critical fixed-rail use | Select only if output voltage is fixed and fault monitoring is unnecessary |
| MCP1826T-ADJ/DC | 300 mA; 45 µVrms noise; no FAULT pin; 250 mV dropout @ 300 mA | Higher dropout limits usable input range; missing fault diagnostics for predictive maintenance | Prefer when lower noise is critical but fault awareness is not required |
Compared with NCP2860DMADJR2G, TSP53025DRVR offers lower noise but sacrifices adjustability and system-level fault visibility, while MCP1826T-ADJ/DC provides similar current capability but lacks integrated fault indication and has higher dropout - making NCP2860DMADJR2G optimal for compact, diagnostic-aware audio and portable designs.
Availability
NCP2860DMADJR2G is available at Aetrix Electronics and suitable for cellular phone power management, handheld instrument bias rails, and audio amplifier driver applications requiring stable component supply, long-term lifecycle support, and Pb-free compliance.
Supply support for NCP2860DMADJR2G 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, and sensor solutions for automotive, industrial, and portable electronics.
The NCP2860DMADJR2G belongs to onsemi's high-performance LDO family engineered for noise-sensitive analog subsystems in battery-powered devices - emphasizing ultra-low noise, low dropout, and integrated diagnostics.
FAQ
What output voltage range does the NCP2860DMADJR2G support?
The NCP2860DMADJR2G supports an adjustable output voltage range from 1.25 V to 5.80 V, set by an external resistor divider connected to the SET pin. Its internal reference voltage is 1.244 V (typ), and the formula VOUT = 1.244 × (1 + R1/R2) applies, with leakage current correction recommended for high-impedance dividers. This makes NCP2860DMADJR2G suitable for diverse rail requirements across portable electronics.
How does the FAULT pin function on the NCP2860DMADJR2G?
The FAULT pin on the NCP2860DMADJR2G is an open-drain output that pulls low when the input-to-output differential voltage drops below the dynamic dropout threshold - indicating imminent regulation loss. During normal operation or shutdown, it remains high-impedance. An external pull-up resistor (typically 100 kΩ) is required to generate a logic-high signal. This feature enables real-time health monitoring in systems using NCP2860DMADJR2G.
What is the dropout voltage specification for the NCP2860DMADJR2G at full load?
The NCP2860DMADJR2G exhibits a dropout voltage of 150 mV (typ) at 300 mA load current, defined as the minimum VIN−VOUT difference needed to maintain regulation. At lighter loads (1 mA), dropout drops to 0.6 mV. This low dropout enables efficient operation from 3.0 V inputs down to 2.77 V outputs - a key advantage of NCP2860DMADJR2G in single-cell Li-ion applications.
Does the NCP2860DMADJR2G require external compensation components?
No, the NCP2860DMADJR2G does not require external compensation components. Its transconductance error amplifier and internal P-channel MOSFET pass device are designed for unconditional stability with standard 2.2 µF ceramic output capacitors (ESR < 0.5 Ω). This simplifies layout and reduces BOM count - a verified design feature confirmed in the NCP2860DMADJR2G datasheet's "Regulation" section.
What protection features are integrated into the NCP2860DMADJR2G?
The NCP2860DMADJR2G integrates thermal overload protection (170°C trip with 30°C hysteresis), short-circuit current limiting (465 mA typical), and foldback current limiting during startup (220 mA). It also features a dedicated FAULT pin for dropout detection and an active-low STDWN pin with hysteresis for controlled shutdown. These protections ensure robust operation of NCP2860DMADJR2G in unpredictable load and thermal environments.
NCP2860DMADJR2G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Adjustable
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 1.25V
- Voltage - Output (Max):
- 5.8V
- Voltage Dropout (Max):
- 0.2V @ 300mA
- Current - Output:
- 300mA
- Current - Quiescent (Iq):
- 900 µA
- Current - Supply (Max):
- 1.4 mA
- PSRR:
- 69dB (1kHz)
- Control Features:
- Enable, Fault Output
- Protection Features:
- Over Temperature, Short Circuit, Soft Start
- Operating Temperature:
- -25°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
NCP2860DMADJR2G FAQ
1.How can I place an order for NCP2860DMADJR2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP2860DMADJR2G 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 NCP2860DMADJR2G reliable?
The price and inventory of NCP2860DMADJR2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP2860DMADJR2G is usually 5 days.
3.What payment methods are accepted for NCP2860DMADJR2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP2860DMADJR2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP2860DMADJR2G?
NCP2860DMADJR2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP2860DMADJR2G 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 NCP2860DMADJR2G?
For technical support, including NCP2860DMADJR2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP2860DMADJR2G requirements.
6.How does Aetrix verify that NCP2860DMADJR2G is sourced from the original manufacturer or authorized distributors?
All NCP2860DMADJR2G 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 NCP2860DMADJR2G meets industry standards.
7.What is the process for return or replacement of NCP2860DMADJR2G?
All NCP2860DMADJR2G units undergo pre-shipment inspection (PSI). If there is an issue with NCP2860DMADJR2G, 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 NCP2860DMADJR2G part is unused and in its original packaging.
Return procedure for NCP2860DMADJR2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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