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onsemi NCP4586DSQ30T1G
- Part No.:
- NCP4586DSQ30T1G
- Manufacturer:
- onsemi
- Package:
- SC-82A, SOT-343
- Datasheet:
-
NCP4586DSQ30T1G.pdf
- Description:
- IC REG LINEAR 3V 150MA SC82AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,000
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Product details
Overview
NCP4586DSQ30T1G from onsemi is a CMOS 150 mA low-dropout linear regulator with 3.0 V fixed output, ±1% accuracy at 25°C, 320 mV typical dropout at full load, 80 dB PSRR at 1 kHz, and stable operation with 0.47 µF ceramic output capacitors. It serves as a precision local voltage source in space-constrained portable electronics requiring low noise and high ripple rejection.
For engineers reviewing the NCP4586DSQ30T1G datasheet, pinout, applications, or equivalent options, key selection criteria include its enable-high + auto-discharge functionality, SC-82AB package footprint, thermal performance (RJA = 263°C/W), and compatibility with 1.7–6.5 V input rails in battery-powered systems.
Technical Context
The NCP4586DSQ30T1G implements a CMOS-based LDO architecture with internal bandgap reference, error amplifier, and P-channel pass transistor. Its enable-high logic and integrated output discharge transistor enable controlled power sequencing and rapid VOUT collapse during shutdown.
It operates across −40°C to +85°C ambient, maintains ±1.5% output accuracy over temperature for 3.0 V output, delivers 30 µVRMS output noise (10 Hz–100 kHz), and achieves 0.32 V typical dropout at 150 mA for VOUT ≥ 2.5 V - enabling efficient regulation from single-cell Li-ion or dual-cell alkaline sources.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0 V ±1% at 25°C; ±1.5% over −40°C to +85°C - ensures stable MCU core or sensor bias under thermal variation. |
| Max Output Current | 150 mA continuous - sufficient for powering low-power microcontrollers, RF transceivers, or analog sensors. |
| Dropout Voltage | 320 mV typ. at 150 mA - allows regulation from 3.3 V input down to ~3.0 V output, maximizing battery runtime. |
| PSRR | 80 dB at 1 kHz - suppresses switching noise from adjacent DC-DC converters in mixed-signal PCBs. |
| Output Noise | 30 µVRMS (10 Hz–100 kHz) - meets low-noise requirements for ADC references and audio codec supplies. |
| Quiescent Current | 38–58 µA - minimizes standby power loss in always-on subsystems like real-time clocks or wake-up controllers. |
| Enable Threshold | VCEH = 1.0 V min - compatible with 1.8 V/3.3 V GPIO without level-shifting. |
Pinout & Package
Package: SC-82AB (Case 419C), 4-pin, 1.8 × 1.15 mm, 0.65 mm pitch, Pb-free, exposed pad optional per layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input supply connection | Accepts 1.7–6.5 V; requires 470 nF ceramic decoupling placed adjacent to pin for transient stability. |
| GND | Power ground reference | Low-impedance return path; must be connected directly to PCB ground plane beneath exposed pad (if used). |
| CE | Enable control input (active-high) | Pulled internally to VIN via 0.4 µA current source; tie to GND to disable, VIN to enable; supports power sequencing. |
| VOUT | Regulated output terminal | Delivers 3.0 V ±1%; requires 470 nF ceramic capacitor to GND within 2 mm for loop stability and load transient response. |
Key Features
| Feature | Design Value |
|---|---|
| Auto-discharge function | Integrated N-ch transistor discharges VOUT to GND within 100 µs upon CE deactivation - prevents floating bias in downstream circuitry. |
| Ultra-low noise output | 30 µVRMS noise enables clean supply for precision analog circuits without external filtering. |
| Stable with minimal capacitance | Guaranteed stability with 0.47 µF ceramic output cap - reduces BOM count and board area vs. traditional LDOs requiring ≥2.2 µF. |
| High PSRR at low frequency | 80 dB rejection at 1 kHz - effectively isolates sensitive loads from low-frequency ripple on shared input rails. |
| Wide input voltage range | 1.7–6.5 V operation supports direct connection to Li-ion (3.0–4.2 V), NiMH (2.4–3.6 V), or regulated 5 V supplies. |
Applications
| Wearable Health Monitor | Bluetooth LE Sensor Node |
|---|---|
Use Scenario: Compact wrist-worn device with optical heart-rate sensor, accelerometer, and BLE radio operating from coin-cell or thin-film battery. IC Role / Device Role: Primary 3.0 V supply for analog front-end and BLE SoC I/O domain. Use Value: Low quiescent current extends battery life; auto-discharge prevents sensor latch-up during sleep mode transitions. |
Use Scenario: Battery-powered environmental sensor node transmitting temperature/humidity data via Bluetooth Low Energy every 5 seconds. IC Role / Device Role: Stable 3.0 V rail for BLE transceiver and microcontroller I/O, decoupled from noisy digital switching. Use Value: 80 dB PSRR rejects noise from RF transmit bursts; 320 mV dropout maximizes usable battery voltage range. |
| Industrial Handheld Scanner | Smart Camera Module |
Use Scenario: Ruggedized barcode scanner with laser diode driver, image sensor, and ARM Cortex-M4 MCU powered by 2×AA batteries. IC Role / Device Role: Local 3.0 V regulator for MCU core and interface logic, isolated from motor and laser supply noise. Use Value: SC-82AB package fits tight PCB real estate; ±1% accuracy ensures reliable USB enumeration and communication timing. |
Use Scenario: Embedded camera module in IoT gateway, using CMOS image sensor and ISP with strict analog supply noise limits. IC Role / Device Role: Dedicated low-noise 3.0 V supply for image sensor analog block and PLL reference. Use Value: 30 µVRMS output noise avoids fixed-pattern noise in captured images; stable with 0.47 µF cap simplifies layout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-3002E/TT | 300 mA rating, 170 µA quiescent current, no auto-discharge, SOT-23-3 package | Lacks enable control and output discharge; suited for simpler always-on rails | Select when higher current headroom is needed and enable/discharge not required. |
| Torex XC6206P302MR-G | 150 mA, 3.0 V, 25 µA IQ, no enable pin, SOT-23-3, no auto-discharge | Fixed-on operation only; lower IQ but no sequencing control | Choose for ultra-low-power always-on bias where active control is unnecessary. |
Compared with MCP1700T-3002E/TT and XC6206P302MR-G, the NCP4586DSQ30T1G uniquely combines enable-high logic, integrated output discharge, SC-82AB compactness, and 30 µVRMS noise - making it optimal for sequenced, noise-sensitive portable designs.
Availability
NCP4586DSQ30T1G is available at Aetrix Electronics and suitable for wearable health monitors, Bluetooth LE sensor nodes, industrial handheld scanners, smart camera modules, and other portable electronics requiring stable component supply with guaranteed long-term sourcing.
Supply support for NCP4586DSQ30T1G 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, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The NCP4586DSQ30T1G belongs to the NCP4586 family of low-noise, low-IQ LDOs designed specifically for battery-powered portable equipment where small size, high accuracy, and fast transient response are critical.
FAQ
What is the correct pin configuration for NCP4586DSQ30T1G in SC-82AB package?
The NCP4586DSQ30T1G in SC-82AB has four pins: Pin 1 = VIN, Pin 2 = GND, Pin 3 = CE (active-high enable), Pin 4 = VOUT. Pin 4 is electrically isolated from the die paddle; the exposed pad (if present) is non-functional and may be left floating or tied to GND for thermal improvement per layout guidelines.
Does NCP4586DSQ30T1G require an external pull-down resistor on the CE pin?
No - the NCP4586DSQ30T1G integrates a 0.4 µA internal pull-down current source on the CE pin. When unused, CE may be left unconnected; however, tying it directly to GND ensures reliable disable state and eliminates noise susceptibility in high-EMI environments.
Can NCP4586DSQ30T1G operate with a 0.22 µF ceramic output capacitor?
No - the NCP4586DSQ30T1G is specified and tested for stability with ≥0.47 µF ceramic output capacitance. Using 0.22 µF risks oscillation under load transients; design must adhere to the 0.47 µF minimum value with X5R/X7R dielectric and ≤100 mΩ ESR.
What is the maximum allowable input voltage for NCP4586DSQ30T1G?
The absolute maximum input voltage for NCP4586DSQ30T1G is 7 V per datasheet Absolute Maximum Ratings. For reliable operation, input must remain within 1.7–6.5 V recommended range; sustained operation above 6.5 V risks parametric shift or premature failure even if below 7 V.
How does the auto-discharge feature of NCP4586DSQ30T1G behave during shutdown?
When CE is driven low, the NCP4586DSQ30T1G activates an internal N-channel transistor between VOUT and GND, discharging the output capacitor to <100 mV within 100 µs (typical). This prevents back-powering of upstream circuitry and ensures deterministic reset behavior in multi-rail systems.
NCP4586DSQ30T1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SC-82A, SOT-343
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6.5V
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.51V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 58 µA
- Current - Supply (Max):
- -
- PSRR:
- 80dB (1kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-82AB
NCP4586DSQ30T1G FAQ
1.How can I place an order for NCP4586DSQ30T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP4586DSQ30T1G 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 NCP4586DSQ30T1G reliable?
The price and inventory of NCP4586DSQ30T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP4586DSQ30T1G is usually 5 days.
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Once your NCP4586DSQ30T1G 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 NCP4586DSQ30T1G?
For technical support, including NCP4586DSQ30T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP4586DSQ30T1G requirements.
6.How does Aetrix verify that NCP4586DSQ30T1G is sourced from the original manufacturer or authorized distributors?
All NCP4586DSQ30T1G 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 NCP4586DSQ30T1G meets industry standards.
7.What is the process for return or replacement of NCP4586DSQ30T1G?
All NCP4586DSQ30T1G units undergo pre-shipment inspection (PSI). If there is an issue with NCP4586DSQ30T1G, 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 NCP4586DSQ30T1G part is unused and in its original packaging.
Return procedure for NCP4586DSQ30T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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