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onsemi NCP584HSN18T1
- Part No.:
- NCP584HSN18T1
- Manufacturer:
- onsemi
- Package:
- SC-74A, SOT-753
- Datasheet:
-
NCP584HSN18T1.pdf
- Description:
- IC REG LINEAR 1.8V 200MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,620
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Product details
Overview
NCP584HSN18T1 from onsemi is a 3-mode, 200 mA low-dropout linear regulator with fixed 1.8 V output, designed for portable battery-powered systems requiring high ripple rejection (≥70 dB at 1 kHz), ±2% output accuracy in CE/FT mode, and ultra-low quiescent current (3.5 µA in LP mode). It operates across −40°C to +85°C and supports fast transient response in FT mode or extended battery life in LP mode via ECO pin control.
For engineers reviewing the NCP584HSN18T1 datasheet, pinout, applications, or equivalent options, key selection criteria include dropout voltage at 200 mA (≤200 mV), dual-mode supply current trade-off (40 µA vs. 3.5 µA), SOT23-5 package footprint compatibility, and enable-controlled power sequencing in space-constrained handheld devices.
Technical Context
The NCP584HSN18T1 implements a three-state operational architecture: Chip Enable (CE) mode for full regulation, Fast Transient (FT) mode (ECO = Vin) for high PSRR and dynamic load response, and Low Power (LP) mode (ECO = GND) for minimal quiescent draw. Its internal reference and error amplifier maintain tight line/load regulation (≤0.20%/V and ≤40 mV respectively) across input voltages from 1.4 V to 6.0 V.
Dropout behavior is output-voltage-dependent: at 1.8 V output, typical dropout is 200 mV at 200 mA (ECO = Vin) and 300 mV (ECO = GND), verified per Figure 23. The device features active current limiting (50 mA short-circuit protection) and thermal shutdown, with stable operation using ≥1.0 µF ceramic output capacitance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.8 V ±2% (CE/FT mode); ±3% (LP mode) - ensures stable core logic or RF bias rail without external feedback. |
| Max Output Current | 200 mA - sufficient for microcontroller cores, sensors, or low-power RF ICs in portable designs. |
| Dropout Voltage | 200 mV @ 200 mA (FT mode), 300 mV @ 200 mA (LP mode) - enables operation from single-cell Li-ion (3.0 V min) or two-cell alkaline (3.2 V min) with margin. |
| Quiescent Current | 40 µA (FT mode), 3.5 µA (LP mode) - extends battery runtime in always-on sensor nodes or standby subsystems. |
| PSRR | ≥70 dB @ 1 kHz (Iout = 30 mA) - suppresses switching noise from DC-DC converters feeding adjacent analog or RF circuitry. |
| Operating Temp | −40°C to +85°C - qualified for industrial-grade portable instrumentation and consumer camcorders. |
| Input Voltage Range | 1.4 V to 6.0 V - supports direct connection to Li-ion, Li-Po, or multi-cell alkaline/NiMH sources without pre-regulation. |
Pinout & Package
SOT23-5 package (Case 1212-01), 2.8 mm × 2.5 mm footprint, 1.0–1.3 mm height, with gull-wing leads and exposed pad not present. Compatible with standard reflow profiles and manual soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: Vin | Power input | Accepts 1.4–6.0 V unregulated supply; requires local 1.0 µF ceramic decoupling. |
| 2: GND | Ground reference | Common return for input/output paths and ECO/CE logic; must be low-impedance. |
| 3: CE | Chip enable input | Active-high digital control: logic high enables regulation; logic low disables output (Iq < 1 µA). |
| 4: ECO | Mode selection input | High = FT mode (40 µA, high PSRR); low = LP mode (3.5 µA, reduced transient response). |
| 5: Vout | Regulated output | Delivers stable 1.8 V ±2%; requires ≥1.0 µF ceramic output capacitor for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Three operational modes | CE/FT/LP modes selectable via dedicated pins-enables dynamic trade-off between efficiency and performance without firmware changes. |
| Low dropout at 200 mA | 200 mV (FT) / 300 mV (LP) at 1.8 V output-maximizes usable battery voltage range in compact portable devices. |
| High PSRR | ≥70 dB at 1 kHz-prevents noise coupling from switching regulators into sensitive analog or RF signal chains. |
| Precision output accuracy | ±2% over temperature and line/load-eliminates need for post-regulation trimming in cost-sensitive consumer applications. |
| Thermal & current protection | Internal thermal shutdown and 50 mA short-circuit current limit-ensures robustness during fault conditions without external components. |
Applications
| Portable Medical Sensors | Handheld Test Equipment |
|---|---|
Use Scenario: Continuous glucose monitor with Bluetooth LE radio and low-power MCU operating from coin-cell or rechargeable Li-ion. IC Role / Device Role / Timing Role: Primary 1.8 V LDO supplying MCU core, BLE transceiver I/O, and analog front-end ADC reference. Use Value: LP mode (3.5 µA) extends battery life beyond 6 months; FT mode enables fast wake-up response during sensor sampling bursts. | Use Scenario: Battery-powered multimeter with LCD display, precision op-amps, and microcontroller-based measurement engine. IC Role / Device Role / Timing Role: Stable 1.8 V rail for MCU core logic and analog signal conditioning circuitry. Use Value: ±2% output accuracy ensures consistent ADC reference voltage; 70 dB PSRR prevents switching noise from backlight DC-DC from corrupting measurement integrity. |
| Digital Camcorders | Wearable Fitness Trackers |
Use Scenario: HD video capture device powered by single-cell Li-ion, requiring clean power for image sensor and video encoder ASICs. IC Role / Device Role / Timing Role: Dedicated 1.8 V LDO for image sensor digital interface and memory controller I/O. Use Value: 200 mV dropout preserves headroom during high-current video encoding; fast transient response (FT mode) maintains regulation during burst pixel readout. | Use Scenario: Always-on activity tracker with heart-rate sensor, accelerometer, and BLE connectivity running on thin-film battery. IC Role / Device Role / Timing Role: Ultra-low-quiescent 1.8 V supply for sensor hub MCU and analog sensor biasing. Use Value: 3.5 µA LP mode current minimizes self-discharge; CE pin allows synchronized shutdown of entire sensor subsystem during sleep intervals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-1802E/TT | Fixed 1.8 V, 250 mA, 6 µA IQ, no ECO mode - single-mode ultra-low-IQ design. | Lacks dynamic mode switching; better for static low-power apps where FT response is unnecessary. | Select when only LP-mode efficiency matters and transient performance is secondary. |
| Torex XC6206P182MR-G | Fixed 1.8 V, 250 mA, 1 µA IQ, no enable or mode pin - minimal-feature LDO with lowest quiescent current. | No CE or ECO control; requires external MOSFET for enable if sequencing needed. | Choose for simplest bill-of-materials in always-on, non-sequenced subsystems. |
Compared with MCP1700T-1802E/TT and XC6206P182MR-G, the NCP584HSN18T1 uniquely delivers programmable performance trade-offs (FT vs. LP) within one footprint, enabling adaptive power management without layout changes or additional discrete components.
Availability
NCP584HSN18T1 is available at Aetrix Electronics and suitable for portable medical sensors, handheld test equipment, digital camcorders, and wearable fitness trackers requiring stable component supply across long production cycles and evolving battery chemistries.
Supply support for NCP584HSN18T1 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 NCP584 series belongs to onsemi's precision analog LDO portfolio, engineered specifically for battery-constrained portable electronics demanding configurable efficiency-performance balance and high reliability in small form factors.
FAQ
What output voltage does the NCP584HSN18T1 provide?
The NCP584HSN18T1 provides a fixed 1.8 V regulated output with ±2% accuracy in CE/FT mode and ±3% in LP mode, verified across −40°C to +85°C junction temperature and 1.4–6.0 V input range. This output is internally trimmed and requires no external resistors, making it ideal for powering 1.8 V logic cores, sensor interfaces, and RF I/O rails in portable designs.
How does the ECO pin affect NCP584HSN18T1 operation?
The ECO pin on the NCP584HSN18T1 selects between Fast Transient (ECO = Vin) and Low Power (ECO = GND) modes. In FT mode, supply current is 40 µA and PSRR exceeds 70 dB; in LP mode, supply current drops to 3.5 µA but transient response slows. This pin enables real-time adaptation of power-performance trade-offs without changing firmware or hardware layout.
What is the minimum input voltage required for NCP584HSN18T1 to regulate 1.8 V?
The NCP584HSN18T1 requires a minimum input voltage of 1.4 V to initiate regulation, but stable 1.8 V output at 200 mA load demands Vin ≥ 2.0 V in FT mode (200 mV dropout) or Vin ≥ 2.1 V in LP mode (300 mV dropout). Operation below these margins results in dropout and unregulated output, as confirmed in the Electrical Characteristics table and Figure 23.
Can NCP584HSN18T1 be used with ceramic output capacitors?
Yes, the NCP584HSN18T1 is stable with ≥1.0 µF ceramic output capacitors, as validated in Figures 29–30 (transient response tests using 1.0 µF, 2.2 µF, and 4.7 µF X7R ceramics). No ESR requirements apply, simplifying layout and reducing BOM count compared to tantalum- or aluminum-electrolytic-dependent LDOs.
What protection features are integrated into the NCP584HSN18T1?
The NCP584HSN18T1 integrates thermal shutdown and current limiting: output short-circuit current is clamped to 50 mA (typical), and junction temperature exceeding safe limits triggers automatic shutdown. These protections operate independently of CE/ECO states and require no external components, ensuring robust operation in handheld devices subject to mechanical stress or thermal enclosure constraints.
NCP584HSN18T1 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):
- 1.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.3V @ 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
NCP584HSN18T1 FAQ
1.How can I place an order for NCP584HSN18T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP584HSN18T1 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 NCP584HSN18T1 reliable?
The price and inventory of NCP584HSN18T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP584HSN18T1 is usually 5 days.
3.What payment methods are accepted for NCP584HSN18T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP584HSN18T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP584HSN18T1?
NCP584HSN18T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP584HSN18T1 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 NCP584HSN18T1?
For technical support, including NCP584HSN18T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP584HSN18T1 requirements.
6.How does Aetrix verify that NCP584HSN18T1 is sourced from the original manufacturer or authorized distributors?
All NCP584HSN18T1 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 NCP584HSN18T1 meets industry standards.
7.What is the process for return or replacement of NCP584HSN18T1?
All NCP584HSN18T1 units undergo pre-shipment inspection (PSI). If there is an issue with NCP584HSN18T1, 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 NCP584HSN18T1 part is unused and in its original packaging.
Return procedure for NCP584HSN18T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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