My Inquiry
My Account
onsemi NCP4586DSQ12T1G
- Part No.:
- NCP4586DSQ12T1G
- Manufacturer:
- onsemi
- Package:
- SC-82A, SOT-343
- Datasheet:
-
NCP4586DSQ12T1G.pdf
- Description:
- IC REG LINEAR 1.2V 150MA SC82AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,112
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
NCP4586DSQ12T1G from onsemi is a 150 mA CMOS low-dropout linear regulator with 1.2 V fixed output, ±1% accuracy at 25°C, 320 mV typical dropout at full load, and 80 dB PSRR at 1 kHz-designed for battery-powered portable electronics requiring stable low-noise voltage regulation.
For engineers reviewing the NCP4586DSQ12T1G datasheet, pinout, applications, or equivalent options, key selection criteria include its SC-82AB package footprint, enable-high + auto-discharge functionality, 30 µVRMS output noise (10 Hz–100 kHz), and compatibility with 0.47 µF ceramic output capacitors without external compensation.
Technical Context
The NCP4586DSQ12T1G implements a CMOS pass transistor architecture with internal voltage reference and error amplifier, enabling ultra-low quiescent current (38–58 µA) and fast transient response. Its enable-high logic with integrated pull-down current source (0.4 µA) supports controlled power sequencing in space-constrained systems.
This variant includes an active N-channel discharge transistor tied between VOUT and GND, activated during shutdown to rapidly deplete output capacitance-critical for systems requiring fast power-down recovery and avoiding back-powering of downstream circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.2 V ±1% (at TJ = 25°C); ensures precise core voltage for low-power microcontrollers and sensors. |
| Max Output Current | 150 mA continuous; sufficient for single-rail MCU cores, RF transceivers, or analog front-ends in portable devices. |
| Dropout Voltage | 320 mV typ. at 150 mA; enables operation down to VIN = 1.52 V, extending battery runtime in single-cell Li-ion or alkaline systems. |
| PSRR | 80 dB at 1 kHz; suppresses switching noise from adjacent DC-DC converters or digital ICs feeding shared input rails. |
| Output Noise | 30 µVRMS (10 Hz–100 kHz); meets low-noise requirements for ADC references, audio codecs, and precision analog signal chains. |
| Input Voltage Range | 1.7 V to 6.5 V; supports direct connection to single-cell Li-ion (2.7–4.2 V), LiFePO₄ (2.0–3.6 V), or 3.3/5 V system rails. |
| Quiescent Current | 38–58 µA; minimizes standby power loss in always-on sensor nodes or real-time clock backup circuits. |
Pinout & Package
Package: SC-82AB (Case 419C), 4-pin surface-mount package measuring 1.8 × 1.15 × 0.8 mm (max), Pb-free, with exposed thermal pad for enhanced heat dissipation in high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input supply connection | Accepts 1.7–6.5 V; requires 470 nF ceramic decoupling capacitor placed adjacent to pin for stable line transient response. |
| GND | Power ground reference | Common return path for input/output currents; must be connected to low-impedance PCB ground plane to minimize noise coupling. |
| CE | Enable control input (active-high) | Logic-high (>1.0 V) enables regulation; internal 0.4 µA pull-down ensures default disable state when floating-no external resistor needed. |
| VOUT | Regulated output terminal | Delivers 1.2 V ±1%; supports 0.47 µF minimum ceramic output capacitor; includes integrated discharge FET for rapid VOUT collapse on disable. |
Key Features
| Feature | Design Value |
|---|---|
| Auto-discharge function | Integrated N-ch transistor actively pulls VOUT to GND during disable, reducing residual voltage to <100 mV within 100 µs-prevents back-powering of sensitive peripherals. |
| Ultra-low noise regulation | 30 µVRMS output noise over 10 Hz–100 kHz bandwidth enables clean power for 12-bit+ ADCs and low-phase-noise oscillators. |
| Stable with minimal capacitance | Guaranteed stability using only 0.47 µF ceramic output capacitor-eliminates need for larger, higher-ESR tantalum or electrolytic caps in size-sensitive designs. |
| High PSRR across frequency | 80 dB at 1 kHz and >60 dB up to 100 kHz-effectively filters ripple from switch-mode power supplies sharing the same input rail. |
| Precision output accuracy | ±1% initial tolerance (VOUT > 2 V) and ±1.5% over −40°C to +85°C ambient-reduces need for post-regulation trimming in production calibration. |
Applications
| Wearable Health Sensor Node | Bluetooth LE Audio Transmitter |
|---|---|
|
Use Scenario: Compact wearable patch monitoring ECG/PPG signals with ultra-low power MCU and analog front-end. IC Role / Device Role / Timing Role: Primary 1.2 V supply for ARM Cortex-M0+ core and 16-bit sigma-delta ADC reference. Use Value: 30 µVRMS noise and ±1% accuracy preserve signal integrity and measurement repeatability across temperature; auto-discharge prevents sensor bias leakage during sleep mode. |
Use Scenario: Miniature Bluetooth audio transmitter streaming from smartphone to wireless earbuds. IC Role / Device Role / Timing Role: Clean 1.2 V rail for BLE SoC digital core and RF synthesizer VCO supply. Use Value: 80 dB PSRR rejects noise from BLE radio switching; 320 mV dropout extends usable battery range by 12% vs. legacy LDOs in single-cell Li-ion operation. |
| Industrial IoT Edge Node | Smart Camera Module |
|
Use Scenario: Battery-powered vibration sensor node with LoRaWAN connectivity deployed in remote machinery. IC Role / Device Role / Timing Role: Always-on 1.2 V supply for ultra-low-power MCU and MEMS accelerometer interface. Use Value: 38 µA quiescent current enables >5-year battery life; SC-82AB footprint (1.8 × 1.15 mm) fits tight board area constraints near sensor placement. |
Use Scenario: Embedded camera module in security doorbell with motion-triggered video capture. IC Role / Device Role / Timing Role: Dedicated 1.2 V regulator for image signal processor (ISP) core logic and DDR I/O termination. Use Value: Fast load transient response (<50 µs settling) maintains ISP clock stability during burst pixel readout; auto-discharge prevents image corruption during rapid power cycling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-1202E/TT | 150 mA, 1.2 V fixed, 6 µA IQ, no auto-discharge, SOT-23-3 package | Lacks active VOUT discharge; requires external circuitry for fast shutdown decay | Preferred where ultra-low standby current dominates over discharge speed requirements |
| Torex XC6206P122MR-G | 150 mA, 1.2 V fixed, 1.0 µA IQ, no CE pin, SOT-25 package | No enable control; unregulated output during input brownout; no auto-discharge | Suitable for always-on, non-sequenced power domains where simplicity and lowest IQ are critical |
Compared with MCP1700T-1202E/TT and XC6206P122MR-G, the NCP4586DSQ12T1G uniquely combines enable control, auto-discharge, and 80 dB PSRR in a 4-pin SC-82AB package-making it optimal for battery-powered systems requiring both low-noise regulation and deterministic power-down behavior.
Availability
NCP4586DSQ12T1G is available at Aetrix Electronics and suitable for battery-powered equipment, portable communication devices, and smart camera modules requiring stable component supply with guaranteed long-term manufacturability.
Supply support for NCP4586DSQ12T1G 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 NCP4586DSQ12T1G belongs to onsemi's NCP4586 family of low-noise, low-IQ LDO regulators-engineered specifically for space-constrained, battery-operated portable electronics demanding high PSRR, precision output, and fast transient response.
FAQ
What is the maximum input voltage rating for the NCP4586DSQ12T1G?
The absolute maximum input voltage for the NCP4586DSQ12T1G is 7 V, per the Absolute Maximum Ratings table. Operation above 6.5 V violates recommended conditions and risks permanent damage. For reliable long-term use, maintain VIN ≤ 6.5 V across all operating temperatures and load conditions. The NCP4586DSQ12T1G is optimized for 1.7–6.5 V input ranges, including single-cell Li-ion and 3.3/5 V system rails.
Does the NCP4586DSQ12T1G require an external capacitor on the CE pin?
No, the NCP4586DSQ12T1G does not require an external capacitor on the CE pin. Its CE input has an internal 0.4 µA pull-down current source, ensuring a defined logic-low state when left unconnected. This eliminates the need for external pull-down resistors or bypass capacitors, simplifying layout and reducing BOM count. The NCP4586DSQ12T1G operates reliably with direct GPIO control from MCUs or PMICs.
Can the NCP4586DSQ12T1G be used with a 1 µF ceramic output capacitor?
Yes-the NCP4586DSQ12T1G is stable with output capacitances ≥0.47 µF, so a 1 µF ceramic capacitor is fully compatible and improves load transient response. Larger values (e.g., 1–10 µF) further reduce output impedance at higher frequencies but do not affect stability. Avoid tantalum or aluminum electrolytic capacitors due to their higher ESR, which may cause oscillation. The NCP4586DSQ12T1G's internal compensation is optimized for low-ESR ceramics.
What is the thermal resistance (RJA) of the NCP4586DSQ12T1G in its SC-82AB package?
The thermal resistance from junction-to-air (RJA) for the NCP4586DSQ12T1G in SC-82AB package is 263°C/W, as specified in the Thermal Characteristics table. This value assumes standard JEDEC test board conditions (2-layer PCB, 1 in² copper). Actual RJA improves significantly with thermal vias under the exposed pad and larger copper pours. At 150 mA and 320 mV dropout, power dissipation is ~48 mW-resulting in <13°C junction rise above ambient under typical layout.
How does the auto-discharge feature of the NCP4586DSQ12T1G operate during shutdown?
When the CE pin is driven low, the NCP4586DSQ12T1G activates an internal N-channel transistor between VOUT and GND. This provides a low-impedance discharge path, collapsing VOUT to <100 mV within 100 µs for typical 1 µF output capacitance. This prevents back-powering of upstream circuitry and ensures deterministic reset timing in multi-rail systems. The discharge FET is exclusive to the "D" variant-confirmed by the ordering code "DSQ12T1G" and functional block diagram.
NCP4586DSQ12T1G 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):
- 1.2V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1V @ 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
NCP4586DSQ12T1G FAQ
1.How can I place an order for NCP4586DSQ12T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP4586DSQ12T1G 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 NCP4586DSQ12T1G reliable?
The price and inventory of NCP4586DSQ12T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP4586DSQ12T1G is usually 5 days.
3.What payment methods are accepted for NCP4586DSQ12T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP4586DSQ12T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP4586DSQ12T1G?
NCP4586DSQ12T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP4586DSQ12T1G 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 NCP4586DSQ12T1G?
For technical support, including NCP4586DSQ12T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP4586DSQ12T1G requirements.
6.How does Aetrix verify that NCP4586DSQ12T1G is sourced from the original manufacturer or authorized distributors?
All NCP4586DSQ12T1G 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 NCP4586DSQ12T1G meets industry standards.
7.What is the process for return or replacement of NCP4586DSQ12T1G?
All NCP4586DSQ12T1G units undergo pre-shipment inspection (PSI). If there is an issue with NCP4586DSQ12T1G, 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 NCP4586DSQ12T1G part is unused and in its original packaging.
Return procedure for NCP4586DSQ12T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NCP4586DSQ12T1G Tags
-
MIC5504-1.8YM5-TR
Microchip Technology
-
MIC5504-3.3YM5-TR
Microchip Technology
-
MIC5365-3.0YC5-TR
Microchip Technology
-
MIC5365-1.8YC5-TR
Microchip Technology
-
MIC5365-2.5YC5-TR
Microchip Technology
-
MIC5365-3.3YC5-TR
Microchip Technology
-
MIC5365-3.3YD5-TR
Microchip Technology
-
MIC5317-3.3YM5-TR
Microchip Technology
-
TLV1117LV33DCYR
Texas Instruments
-
MIC5317-3.3YMT-TZ
Microchip Technology
-
MIC5528-3.3YMT-TR
Microchip Technology
-
TLV75801PDRVR
Texas Instruments
Tech Hub
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
