My Inquiry
My Account
onsemi NCP582DSQ30T1G
- Part No.:
- NCP582DSQ30T1G
- Manufacturer:
- onsemi
- Package:
- SC-82A, SOT-343
- Datasheet:
-
NCP582DSQ30T1G.pdf
- Description:
- IC REG LINEAR 3V 150MA SC82AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,396
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
NCP582DSQ30T1G from onsemi is an ultra-fast, low-noise 150 mA CMOS LDO regulator with active-high enable and auto-discharge functionality, delivering a precise 3.0 V output voltage with ±2% accuracy, 220 mV dropout at 150 mA, and 30 µVRMS output noise (10 Hz–100 kHz). It operates from 2.0 V to 6.0 V input and supports portable battery-powered systems requiring stable low-power rail generation.
For engineers reviewing the NCP582DSQ30T1G datasheet, pinout, applications, or equivalent options, key selection criteria include its SC-82AB package footprint, 75 µA quiescent current, 70 dB PSRR at 1 kHz, 100 ppm/°C temperature coefficient, and compatibility with 0.47 µF ceramic output capacitance for 3.0 V operation.
Technical Context
The NCP582DSQ30T1G implements a CMOS-based LDO architecture with internal bandgap reference, error amplifier, and P-channel pass transistor-enabling ultra-low dropout and fast transient response. Its active-high CE pin integrates auto-discharge via an internal N-channel switch that discharges VOUT when disabled.
Designed for high ripple rejection in noise-sensitive analog and RF subsystems, it achieves 70 dB PSRR at 1 kHz and maintains <22 mV load regulation across 1–150 mA output current. The device supports input voltages up to 6.0 V and guarantees operation over −40°C to +85°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.0 V ±2% - tightly regulated rail for MCU cores, sensors, or RF front-ends requiring stable bias. |
| Max Output Current | 150 mA - sufficient for single-core microcontrollers, low-power ADCs, or Bluetooth SoCs. |
| Dropout Voltage | 220 mV at 150 mA - enables operation down to Vin = 3.22 V, extending battery life in 3.3 V Li-ion or 2-cell alkaline systems. |
| Quiescent Current | 75 µA typical - minimizes standby power loss in always-on sensor nodes or wearables. |
| PSRR @ 1 kHz | 70 dB - suppresses switching noise from DC-DC converters feeding the LDO input. |
| Output Noise | 30 µVRMS (10 Hz–100 kHz) - suitable for precision analog circuits without external noise-reduction capacitors. |
| Temp Coefficient | 100 ppm/°C - ensures <±3 mV output drift over −40°C to +85°C, critical for measurement accuracy. |
| Enable Threshold | VENH = 1.5 V min, VENL = 0.3 V max - compatible with 1.8 V and 3.3 V logic-level control signals. |
Pinout & Package
Package: SC-82AB (Case 419C), 4-pin surface-mount package with 1.8 × 1.15 mm footprint, 0.65 mm pitch, and exposed pad not present. RoHS-compliant and Pb-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Vin) | Input power supply | Accepts 2.0–6.0 V; requires 1.0 µF ceramic decoupling capacitor placed close to pin. |
| 2 (GND) | Power ground | Primary ground return path; connects to system ground plane with low-inductance trace. |
| 3 (Vout) | Regulated output | Delivers 3.0 V ±2%; requires 0.47 µF ceramic capacitor (low ESR) adjacent to pin for stability. |
| 4 (CE) | Active-high enable | Pull ≥1.5 V to enable regulator; internal auto-discharge activates when pulled low to discharge Vout. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 220 mV at full 150 mA load - preserves headroom in single-cell Li-ion (3.0–3.6 V) applications. |
| Low-noise regulation | 30 µVRMS output noise without external bypass cap - eliminates need for RC filters in audio/RF signal chains. |
| Auto-discharge function | Internal 60 Ω N-channel switch discharges Vout within microseconds upon disable - prevents floating outputs and latch-up in multi-rail systems. |
| High PSRR | 70 dB at 1 kHz, 60 dB at 10 kHz - rejects noise from upstream switching regulators without additional filtering. |
| Fast dynamic response | Load transient recovery <10 µs (Iout step 1–150 mA) - maintains regulation during burst-mode MCU operation. |
| Thermal protection | Fold-back current limiting and thermal shutdown - prevents damage during sustained overload or poor PCB heatsinking. |
Applications
| Portable Medical Sensors | Wearable Fitness Trackers |
|---|---|
|
Use Scenario: Continuous glucose monitor (CGM) using low-power analog front-end and BLE radio. IC Role / Device Role / Timing Role: Primary 3.0 V LDO supplying ADC reference, op-amps, and BLE SoC I/O domain. Use Value: 30 µVRMS noise ensures sub-10 µV measurement resolution; 75 µA Iq extends battery life beyond 7 days on coin cell. |
Use Scenario: Heart rate monitor with optical sensor, accelerometer, and Bluetooth LE connectivity. IC Role / Device Role / Timing Role: Stable 3.0 V rail for photodiode transimpedance amplifier and sensor hub MCU. Use Value: 100 ppm/°C tempco maintains calibration accuracy across body-worn temperature range; auto-discharge prevents sensor ghosting during sleep mode. |
| Industrial Handheld Scanners | Smart Home Motion Sensors |
|
Use Scenario: Battery-operated barcode scanner with laser diode driver and image sensor. IC Role / Device Role / Timing Role: Low-noise 3.0 V supply for CMOS image sensor analog chain and laser driver bias. Use Value: 70 dB PSRR isolates image sensor from DC-DC converter ripple; 220 mV dropout allows operation until battery reaches 3.22 V. |
Use Scenario: PIR-based occupancy sensor with ultra-low-power MCU and RF transmitter. IC Role / Device Role / Timing Role: Always-on 3.0 V regulator powering PIR signal conditioning and wake-up circuitry. Use Value: 0.1 µA shutdown current enables >2-year battery life; fast turn-on (<5 µs) ensures immediate response to motion events. |
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, 6 µA Iq, no enable pin, SOT-23-5 package | Lacks CE and auto-discharge; better for always-on, ultra-low-Iq use cases only | Select if shutdown control is unnecessary and 300 mA headroom is required. |
| Torex XC6206P302MR-G | 150 mA, 1.0 µA Iq, no enable, SOT-23-3 package, 350 mV dropout | No enable/auto-discharge; higher dropout limits usable input range | Choose only for cost-sensitive, non-controlled-enable designs where lowest Iq dominates. |
Compared with MCP1700T-3002E/MB and XC6206P302MR-G, the NCP582DSQ30T1G uniquely combines active-high enable with auto-discharge, 220 mV dropout, and 30 µVRMS noise-making it optimal for battery-powered systems requiring controlled power sequencing and analog signal integrity.
Availability
NCP582DSQ30T1G is available at Aetrix Electronics and suitable for portable medical sensors, wearable fitness trackers, and industrial handheld scanners requiring stable component supply, long-term lifecycle support, and Pb-free compliance.
Supply support for NCP582DSQ30T1G 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, sensor, and connectivity solutions for automotive, industrial, cloud, and IoT applications.
The NCP582 series belongs to onsemi's precision low-dropout regulator product line, engineered specifically for portable battery-powered equipment demanding high accuracy, ultra-low noise, and fast transient response under light-to-moderate loads.
FAQ
What is the recommended input and output capacitance for NCP582DSQ30T1G?
For NCP582DSQ30T1G, a 1.0 µF ceramic capacitor is required between Vin and GND. Since the output voltage is 3.0 V (>2.5 V), a 0.47 µF ceramic capacitor is recommended at Vout. Both capacitors must be low-ESR X5R/X7R types and placed as close as possible to their respective pins to ensure stability and optimal transient response. The NCP582DSQ30T1G datasheet confirms these values in the Application Information section.
Does NCP582DSQ30T1G support auto-discharge, and how does it work?
Yes, NCP582DSQ30T1G features integrated auto-discharge via an internal 60 Ω N-channel MOSFET connected between Vout and GND. When the CE pin is driven low (disable state), this switch turns on and actively discharges the output capacitor, preventing residual voltage from interfering with downstream circuitry. This behavior is confirmed in the Pin Function Description and Electrical Characteristics tables of the NCP582DSQ30T1G datasheet.
What is the maximum junction temperature and thermal derating behavior of NCP582DSQ30T1G?
The NCP582DSQ30T1G has a maximum junction temperature (TJ(max)) of 125°C and is rated for operation from −40°C to +85°C ambient. Its SC-82AB package provides 230°C/W junction-to-ambient thermal resistance (θJA). Power dissipation must be limited to ≤150 mW at room temperature, derating linearly above 25°C per the Thermal Characteristics table in the NCP582DSQ30T1G datasheet.
Can NCP582DSQ30T1G be used with input voltages below 2.0 V?
No. The NCP582DSQ30T1G specifies a minimum input voltage of 2.0 V in its Recommended Operating Conditions. Operation below this violates the guaranteed performance envelope: output regulation, PSRR, and dropout behavior are not characterized or assured. The NCP582DSQ30T1G Electrical Characteristics table explicitly defines Vin ≥ 2.0 V for all parametric testing.
Is NCP582DSQ30T1G pin-compatible with other variants in the NCP582 family?
Yes - all SC-82AB packaged NCP582 variants (e.g., NCP582DSQ15T1G, NCP582LSQ30T1G) share identical pinout (Vin, GND, Vout, CE) and mechanical footprint. However, enable polarity differs: "D" suffix denotes active-high CE with auto-discharge, while "L" suffix uses active-low CE without auto-discharge. Thus, NCP582DSQ30T1G is mechanically and electrically pin-compatible only with other "DSQ" variants.
NCP582DSQ30T1G 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):
- 6V
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.35V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 95 µA
- Current - Supply (Max):
- -
- PSRR:
- 70dB ~ 60dB (1kHz ~ 10kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-82AB
NCP582DSQ30T1G FAQ
1.How can I place an order for NCP582DSQ30T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP582DSQ30T1G 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 NCP582DSQ30T1G reliable?
The price and inventory of NCP582DSQ30T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP582DSQ30T1G is usually 5 days.
3.What payment methods are accepted for NCP582DSQ30T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP582DSQ30T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP582DSQ30T1G?
NCP582DSQ30T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP582DSQ30T1G 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 NCP582DSQ30T1G?
For technical support, including NCP582DSQ30T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP582DSQ30T1G requirements.
6.How does Aetrix verify that NCP582DSQ30T1G is sourced from the original manufacturer or authorized distributors?
All NCP582DSQ30T1G 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 NCP582DSQ30T1G meets industry standards.
7.What is the process for return or replacement of NCP582DSQ30T1G?
All NCP582DSQ30T1G units undergo pre-shipment inspection (PSI). If there is an issue with NCP582DSQ30T1G, 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 NCP582DSQ30T1G part is unused and in its original packaging.
Return procedure for NCP582DSQ30T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NCP582DSQ30T1G 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
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…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
