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onsemi NCP584LSN12T1G
- Part No.:
- NCP584LSN12T1G
- Manufacturer:
- onsemi
- Package:
- SC-74A, SOT-753
- Datasheet:
-
NCP584LSN12T1G.pdf
- Description:
- IC REG LINEAR 1.2V 200MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,081
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Product details
Overview
NCP584LSN12T1G from onsemi is a tri-mode CMOS low-dropout (LDO) voltage regulator delivering 1.2 V at up to 200 mA, featuring active-low enable (CE), Fast Transient (FT) and Low Power (LP) modes controlled via the ECO pin, with 300 mV dropout at full load and ±2% output accuracy - used in portable instrumentation and battery-powered imaging systems.
For engineers reviewing the NCP584LSN12T1G datasheet, pinout, applications, or equivalent options, key selection considerations include mode-selectable quiescent current (40 µA FT / 3.5 µA LP), input voltage range (1.4–6.0 V), SOT23-5 footprint compatibility, and ECO-pin logic mapping for power-state control.
Technical Context
The NCP584LSN12T1G implements a CMOS-based LDO architecture with internal bandgap reference and foldback current limiting. Its tri-mode operation is determined by ECO pin voltage: VECO = Vin enables Fast Transient mode (40 µA IQ, 20 mV load regulation); VECO = GND activates Low Power mode (3.5 µA IQ, 10 mV load regulation).
It supports active-low chip enable (CE) with TTL-compatible thresholds (VTHL ≤ 0.3 V, VTHH ≥ 1.0 V), operates across −40°C to +85°C ambient, and maintains 75 dB PSRR at 1 kHz - all within a 250 mW power dissipation limit in the SOT23-5 package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 1.2 V nominal, ±2% accuracy (±3% in LP mode) - ensures stable core supply for 1.2 V logic rails |
| Max Output Current | 200 mA - sufficient for microcontroller cores, sensors, and low-power RF ICs |
| Dropout Voltage | 300 mV at 200 mA - enables operation with input as low as 1.5 V, extending battery life |
| Quiescent Current | 40 µA (FT mode), 3.5 µA (LP mode) - selectable ultra-low IQ for standby vs. dynamic response trade-offs |
| PSRR | 75 dB at 1 kHz - suppresses switching noise from upstream DC/DC converters |
| Line Regulation | 0.05%/V (FT), 0.10%/V (LP) - minimizes output drift during battery discharge |
| Shutdown Current | 0.1 µA - near-zero leakage when disabled, critical for long-term storage |
Pinout & Package
SOT23-5 package (Case 1212), 2.8 × 2.5 mm footprint, 1.0–1.3 mm height, Pb-free, tape-and-reel (3000 pcs).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: Vin | Input power supply | Accepts 1.4–6.0 V; requires 1.0 µF input decoupling to prevent instability |
| 2: GND | Power ground reference | Common return path for input/output currents; must be low-impedance PCB plane |
| 3: CE | Active-low chip enable | Pull high (>1.0 V) to enable; pull low (<0.3 V) to shut down regulator (0.1 µA ISD) |
| 4: ECO | Mode selection control | Connect to Vin for FT mode (40 µA IQ); connect to GND for LP mode (3.5 µA IQ) |
| 5: Vout | Regulated output | Delivers 1.2 V ±2%; requires 2.2 µF or higher low-ESR output capacitor for stability |
Key Features
| Feature | Design Value |
|---|---|
| Tri-mode operation (CE/FT/LP) | Enables dynamic power-state adaptation: fast transient response or ultra-low IQ based on system activity |
| Foldback current protection | Limiting reduces output current during short-circuit to ~50 mA, preventing thermal runaway |
| Low temperature drift | 100 ppm/°C output voltage drift - maintains accuracy across industrial temperature range |
| High ripple rejection | 75 dB at 1 kHz and 65 dB at 10 kHz - preserves clean supply for noise-sensitive analog circuits |
| Input voltage range | 1.4–6.0 V - supports single-cell Li-ion, multi-cell alkaline, and USB-powered designs |
Applications
| Portable Medical Sensors | Handheld Test Meters |
|---|---|
Use Scenario: Battery-powered glucose monitors and pulse oximeters requiring precise analog front-end biasing. IC Role / Device Role / Timing Role: Primary 1.2 V supply for ADC reference and microcontroller core. Use Value: ±2% output accuracy and 100 ppm/°C drift ensure consistent measurement calibration across operating temperatures. | Use Scenario: Portable multimeters with LCD display and auto-ranging circuitry. IC Role / Device Role / Timing Role: Regulated 1.2 V rail for precision op-amps and digital logic. Use Value: 75 dB PSRR suppresses switching noise from internal DC/DC converter, preserving measurement resolution. |
| Digital Camcorders | IoT Edge Node Controllers |
Use Scenario: Compact camcorders using CMOS image sensors and video processors. IC Role / Device Role / Timing Role: Low-noise 1.2 V supply for sensor interface and ISP core logic. Use Value: Fast Transient mode (40 µA IQ) delivers rapid load-step response during burst capture, minimizing voltage droop. | Use Scenario: Battery-operated environmental sensor nodes transmitting via BLE or LoRa. IC Role / Device Role / Timing Role: Ultra-low-power 1.2 V supply enabling >5-year battery life in sleep mode. Use Value: Low Power mode (3.5 µA IQ) extends standby duration while maintaining regulated output for wake-up circuitry. |
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 | Fixed 1.2 V, 250 mA, 6 µA IQ (no tri-mode), SOT23-3 package | Lacks ECO-controlled mode switching; simpler enable-only control | Choose for cost-sensitive, single-mode designs where ultra-low IQ suffices without dynamic adjustment |
| Torex XC6209F122MR-G | 1.2 V, 300 mA, 1.0 µA IQ (LP only), SOT23-5, no FT mode | No Fast Transient capability; lower max current but deeper sleep IQ | Prefer when lowest possible standby current is critical and transient load demands are minimal |
Compared with MCP1700T-1202E/TT and XC6209F122MR-G, the NCP584LSN12T1G uniquely provides on-the-fly trade-off between 40 µA (FT) and 3.5 µA (LP) quiescent current via ECO pin, enabling adaptive power management unattainable with fixed-IQ alternatives.
Availability
NCP584LSN12T1G is available at Aetrix Electronics and suitable for portable medical sensors, handheld test meters, digital camcorders, and IoT edge node controllers requiring stable component supply with guaranteed Pb-free compliance and SOT23-5 footprint consistency.
Supply support for NCP584LSN12T1G 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 sensing solutions for automotive, industrial, and portable electronics.
The NCP584 series belongs to onsemi's precision LDO portfolio, designed specifically for battery-powered devices demanding adaptive power states, tight output tolerance, and robust noise immunity in space-constrained layouts.
FAQ
What is the maximum input voltage rating for the NCP584LSN12T1G?
The NCP584LSN12T1G has an absolute maximum input voltage (Vin) rating of 6.5 V. However, the recommended operating input range is 1.4 V to 6.0 V per electrical characteristics testing conditions. Exceeding 6.5 V risks permanent damage. For reliable operation with 1.2 V output, minimum valid input is 1.5 V to maintain regulation under 200 mA load due to its 300 mV dropout specification.
How does the ECO pin determine operating mode in the NCP584LSN12T1G?
The ECO pin selects between Fast Transient (FT) and Low Power (LP) modes in the NCP584LSN12T1G: connecting ECO to Vin activates FT mode (40 µA quiescent current, 20 mV load regulation); connecting ECO to GND enables LP mode (3.5 µA IQ, 10 mV load regulation). This dual-mode capability allows dynamic optimization of response speed versus standby power without changing external components.
What output capacitor value and type are required for stable operation of the NCP584LSN12T1G?
The NCP584LSN12T1G requires a minimum 2.2 µF tantalum capacitor on Vout for stable operation in both FT and LP modes. Ceramic capacitors may be used if series resistance (~1 Ω) is added to emulate ESR; minimum ESR is 40 mΩ in LP mode and varies with load in FT mode (e.g., 100 mΩ at 200 mA for 1.2 V output). Placement must be adjacent to the Vout pin with short traces.
Is the NCP584LSN12T1G pin-compatible with other variants in the NCP584 family?
Yes, all NCP584 variants including NCP584LSN12T1G use identical SOT23-5 pinout (Vin, GND, CE, ECO, Vout) and share the same footprint, thermal pad layout, and electrical interface. Voltage variants (e.g., 0.9 V, 1.5 V, 1.8 V) and enable polarity variants (HSN vs. LSN) are mechanically and electrically interchangeable - only output voltage and CE polarity differ.
Does the NCP584LSN12T1G include overtemperature protection?
The NCP584LSN12T1G incorporates thermal shutdown protection that disables the output when junction temperature exceeds approximately 150°C. Recovery occurs automatically once temperature falls below the hysteresis threshold (~135°C). This complements its foldback current limiting (50 mA short-circuit current), providing dual-layer thermal safety during overload or poor heatsinking conditions.
NCP584LSN12T1G 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):
- 6V
- Voltage - Output (Min/Fixed):
- 1.2V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.5V @ 200mA
- Current - Output:
- 200mA
- Current - Quiescent (Iq):
- 70 µA
- Current - Supply (Max):
- -
- PSRR:
- -
- 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
NCP584LSN12T1G FAQ
1.How can I place an order for NCP584LSN12T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP584LSN12T1G 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 NCP584LSN12T1G reliable?
The price and inventory of NCP584LSN12T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP584LSN12T1G is usually 5 days.
3.What payment methods are accepted for NCP584LSN12T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP584LSN12T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP584LSN12T1G?
NCP584LSN12T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP584LSN12T1G 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 NCP584LSN12T1G?
For technical support, including NCP584LSN12T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP584LSN12T1G requirements.
6.How does Aetrix verify that NCP584LSN12T1G is sourced from the original manufacturer or authorized distributors?
All NCP584LSN12T1G 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 NCP584LSN12T1G meets industry standards.
7.What is the process for return or replacement of NCP584LSN12T1G?
All NCP584LSN12T1G units undergo pre-shipment inspection (PSI). If there is an issue with NCP584LSN12T1G, 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 NCP584LSN12T1G part is unused and in its original packaging.
Return procedure for NCP584LSN12T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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