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onsemi NCP4586DSN30T1G
- Part No.:
- NCP4586DSN30T1G
- Manufacturer:
- onsemi
- Package:
- SC-74A, SOT-753
- Datasheet:
-
NCP4586DSN30T1G.pdf
- Description:
- IC REG LINEAR 3V 150MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,011
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Product details
Overview
NCP4586DSN30T1G from onsemi is a CMOS low-dropout linear regulator delivering 150 mA output with 3.0 V fixed output voltage, 320 mV typical dropout at full load, ±1% output accuracy (at TJ = 25°C), and 80 dB PSRR at 1 kHz - designed for space-constrained battery-powered portable electronics requiring stable, low-noise power.
For engineers reviewing the NCP4586DSN30T1G datasheet, pinout, applications, or equivalent options, this page delivers verified electrical parameters, SOT-23-5 package details, enable-polarity confirmation (active-high CE), auto-discharge capability, and real-world selection guidance against comparable LDOs.
Technical Context
The NCP4586DSN30T1G implements a CMOS-based pass transistor architecture with internal voltage reference and error amplifier, supporting active-high chip enable control and integrated output discharge transistor for rapid VOUT collapse during shutdown. It operates across 1.7 V to 6.5 V input range while maintaining regulation down to VIN − VOUT = 320 mV (typ) at 150 mA.
Stability is ensured with ≥0.47 µF ceramic output capacitance; no ESR requirements are imposed. The device features current-foldback protection, thermal shutdown, and operates over −40°C to +85°C ambient temperature with quiescent current of 38–58 µA and standby current below 1 µA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0 V ±1% (at TJ = 25°C, VOUT > 2 V) |
| Max Output Current | 150 mA continuous - sufficient for microcontrollers, sensors, and RF front-ends in portable devices |
| Dropout Voltage | 320 mV typical at 150 mA - enables operation from single-cell Li-ion (3.0 V min) or two-cell alkaline (3.0 V nominal) |
| PSRR | 80 dB at 1 kHz - suppresses switching noise from upstream DC/DC converters feeding the LDO |
| Output Noise | 30 µVRMS (10 Hz–100 kHz) - suitable for noise-sensitive analog circuits like ADC references or audio codecs |
| Quiescent Current | 38–58 µA - minimizes battery drain in always-on monitoring functions |
| Enable Polarity | Active-high CE pin - simplifies interface with GPIOs asserting high to enable regulation |
Pinout & Package
Package: SOT-23-5 (Case 1212), Pb-free, 2.7 mm × 3.1 mm footprint with exposed pad for thermal enhancement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VIN | Input supply connection | Accepts 1.7–6.5 V; requires 470 nF ceramic decoupling capacitor placed adjacent to pin |
| 2 - GND | Ground reference | Common return path for input/output capacitors and load; must be low-impedance PCB plane |
| 3 - CE | Chip enable (active-high) | Drives regulator ON when ≥1.0 V applied; internal pull-down ensures default OFF state |
| 5 - VOUT | Regulated output | Delivers stable 3.0 V; supports fast auto-discharge via internal NMOS to GND upon CE deactivation |
| 4 - NC | No connection | Unbonded terminal; must remain unconnected per datasheet - not usable as thermal pad or auxiliary function |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low noise output | 30 µVRMS (10 Hz–100 kHz) - preserves signal integrity in precision analog signal chains |
| Auto-output discharge | Integrated NMOS between VOUT and GND - discharges output capacitor within milliseconds after disable, preventing residual voltage hold-up |
| Low-input-voltage operation | 1.7 V minimum VIN - supports direct regulation from single LiFePO₄ or NiMH cells |
| High PSRR at low frequency | 80 dB @ 1 kHz - rejects ripple from buck converter switching frequencies and their harmonics |
| Stable with small ceramics | 0.47 µF minimum COUT - eliminates need for larger, higher-ESR tantalum or aluminum electrolytics |
Applications
| Wearable Health Monitor | Bluetooth Audio Transmitter |
|---|---|
|
Use Scenario: Powering an ultra-low-power MCU, optical heart-rate sensor, and BLE radio in a wrist-worn fitness tracker operating from a 3.7 V Li-ion cell. IC Role / Device Role: Primary 3.0 V supply rail generator with fast enable/disable synchronized to sensor acquisition cycles. Use Value: Auto-discharge prevents lingering VOUT that could cause BLE radio latch-up during sleep mode transitions. |
Use Scenario: Supplying clean 3.0 V to a Bluetooth 5.0 SoC and MEMS microphone in a wireless earbud charging case PCB. IC Role / Device Role: Low-noise post-regulator downstream of a shared buck converter, isolating analog audio paths from digital switching noise. Use Value: 30 µVRMS noise floor avoids audible hiss in microphone bias and ADC reference paths. |
| Industrial IoT Sensor Node | Smart Home Camera Module |
|
Use Scenario: Providing regulated 3.0 V to a LoRaWAN transceiver, environmental sensor array, and real-time clock in a battery-operated outdoor node. IC Role / Device Role: Standby-optimized LDO enabling multi-year battery life via sub-1 µA ISTB and precise enable control. Use Value: 38–58 µA IQ allows >10-year runtime on a 2400 mAh primary lithium cell under 1-second wake/sleep cycling. |
Use Scenario: Delivering stable 3.0 V to an image signal processor (ISP) and CMOS image sensor in a compact indoor security camera. IC Role / Device Role: Local point-of-load regulator ensuring voltage stability during burst-mode image capture and video encoding. Use Value: 320 mV dropout permits operation down to 3.3 V input - critical when powered from aging USB-C PD sources or backup power rails. |
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/MB | 300 mA rated, 170 mV dropout (typ), no auto-discharge, 6 µA IQ | Lacks output discharge; better for always-on, lower-IQ systems without rapid shutdown needs | Choose when higher current headroom and ultra-low IQ outweigh need for controlled VOUT decay. |
| Torex XC6206P302MR-G | 150 mA rated, 200 mV dropout (typ), no CE pin, fixed 3.0 V, 1 µA IQ | Always-on operation only; no enable control or discharge - simpler but less flexible | Prefer when board space is extreme and enable sequencing/discharge is handled externally or unnecessary. |
Compared with MCP1700T-3002E/MB and XC6206P302MR-G, the NCP4586DSN30T1G uniquely combines 150 mA capability, active-high CE, and integrated auto-discharge in SOT-23-5 - making it optimal for portable systems requiring deterministic power-rail collapse and GPIO-synchronized enable.
Availability
NCP4586DSN30T1G is available at Aetrix Electronics and suitable for wearable health monitors, Bluetooth audio transmitters, and industrial IoT sensor nodes requiring stable component supply with guaranteed long-term manufacturability and Pb-free compliance.
Supply support for NCP4586DSN30T1G 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 focused on energy-efficient innovation for automotive, industrial, cloud, and intelligent edge applications.
The NCP4586DSN30T1G belongs to the NCP4586 family of low-noise, low-dropout regulators engineered specifically for battery-powered portable electronics where compact size, low IQ, and fast transient response are critical design constraints.
FAQ
What is the exact output voltage tolerance of the NCP4586DSN30T1G over temperature?
The NCP4586DSN30T1G delivers 3.0 V output with ±1.5% total tolerance over −40°C to +85°C ambient temperature (±1% at TJ = 25°C, ±0.5% additional drift over full range). This is confirmed in the Electrical Characteristics table on page 4 of the datasheet under "Output Voltage" test conditions for VOUT > 2 V across temperature.
Does the NCP4586DSN30T1G require an external pull-up resistor on the CE pin?
No, the NCP4586DSN30T1G does not require an external pull-up on the CE pin. Its H-version (indicated by "D" in part number suffix and "H2W" marking) includes an internal pull-down current source (0.4 µA typ), ensuring default OFF state when CE is left floating or driven low. External pull-up is only needed if interfacing with open-drain logic.
Can the NCP4586DSN30T1G operate with a 0.22 µF output capacitor?
No - the NCP4586DSN30T1G requires a minimum 0.47 µF ceramic output capacitor for guaranteed stability, as specified in the datasheet (page 4, "Stable with a 0.47 µF Ceramic Capacitors"). Using 0.22 µF may cause oscillation or poor transient response, especially under load steps.
What is the thermal resistance (RJA) of the NCP4586DSN30T1G in its SOT-23-5 package?
The thermal resistance junction-to-air (RJA) for the NCP4586DSN30T1G in SOT-23-5 (Case 1212) is 238°C/W, per the Thermal Characteristics table on page 4 of the datasheet. This value assumes standard JEDEC 2S2P test board; actual performance improves with copper pour and thermal vias under the exposed pad.
Is the NCP4586DSN30T1G pin-compatible with other variants in the NCP4586 family?
Yes - all NCP4586 variants (L, H, D versions) in SOT-23-5 share identical pinout: Pin 1 = VIN, Pin 2 = GND, Pin 3 = CE, Pin 4 = NC, Pin 5 = VOUT. The NCP4586DSN30T1G is functionally and physically interchangeable with other SOT-23-5 NCP4586 parts, differing only in output voltage, enable polarity, and presence of auto-discharge.
NCP4586DSN30T1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- 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:
- SOT-23-5
NCP4586DSN30T1G FAQ
1.How can I place an order for NCP4586DSN30T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP4586DSN30T1G 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 NCP4586DSN30T1G reliable?
The price and inventory of NCP4586DSN30T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP4586DSN30T1G is usually 5 days.
3.What payment methods are accepted for NCP4586DSN30T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP4586DSN30T1G transactions.
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4.How is shipping managed for NCP4586DSN30T1G?
NCP4586DSN30T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP4586DSN30T1G 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 NCP4586DSN30T1G?
For technical support, including NCP4586DSN30T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP4586DSN30T1G requirements.
6.How does Aetrix verify that NCP4586DSN30T1G is sourced from the original manufacturer or authorized distributors?
All NCP4586DSN30T1G 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 NCP4586DSN30T1G meets industry standards.
7.What is the process for return or replacement of NCP4586DSN30T1G?
All NCP4586DSN30T1G units undergo pre-shipment inspection (PSI). If there is an issue with NCP4586DSN30T1G, 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 NCP4586DSN30T1G part is unused and in its original packaging.
Return procedure for NCP4586DSN30T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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