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onsemi NCP584HSN12T1
- Part No.:
- NCP584HSN12T1
- Manufacturer:
- onsemi
- Package:
- SC-74A, SOT-753
- Datasheet:
-
NCP584HSN12T1.pdf
- Description:
- IC REG LINEAR 1.2V 200MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,014
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Product details
Overview
NCP584HSN12T1 from onsemi is a 3-mode, 200 mA low-dropout (LDO) voltage regulator with fixed 1.2 V output, designed for portable battery-powered systems requiring precise regulation, ultra-low quiescent current, and high ripple rejection. It operates in Chip Enable (CE), Fast Transient (FT), and Low Power (LP) modes controlled via the ECO pin, and delivers ±2% output accuracy in FT mode.
For engineers reviewing the NCP584HSN12T1 datasheet, pinout, applications, or equivalent options, key selection considerations include dropout voltage at 200 mA (200 mV typical for 1.5 V output; extrapolated ~220 mV at 1.2 V), LP-mode supply current (3.5 µA), ECO-pin mode control logic, and SOT23-5 thermal performance under load transients.
Technical Context
The NCP584HSN12T1 integrates a precision bandgap reference, error amplifier, and PMOS pass transistor to achieve low dropout and tight line/load regulation. Its three operational modes are selected by the ECO pin: high for Fast Transient (40 µA supply current, optimized transient response), low for Low Power (3.5 µA, reduced bandwidth), and CE pin-controlled shutdown.
Mode switching alters internal biasing and compensation-FT mode enables faster load step recovery (e.g., 30 mA → 150 mA in <10 µs with 2.2 µF output cap), while LP mode trades speed for ultra-low IQ. The device supports input voltages from 1.4 V to 6.0 V and maintains stability with 1.0–4.7 µF ceramic output capacitors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.2 V ±2% (FT mode), ±3% (LP mode); enables direct powering of 1.2 V core logic without external feedback. |
| Max Output Current | 200 mA continuous; sufficient for microcontroller cores, RF ICs, or sensor signal chains in space-constrained portable designs. |
| Dropout Voltage | 220 mV typ. at 200 mA (extrapolated from 1.5 V data); allows operation down to Vin = 1.42 V while maintaining regulation. |
| Quiescent Current | 3.5 µA in LP mode (VECO = GND); extends battery life in always-on monitoring circuits. |
| Power Supply Rejection | ≥60 dB at 1 kHz (VOUT = 1.2 V, IOUT = 30 mA); suppresses switching noise from upstream DC/DC converters. |
| Line Regulation | 0.20%/V max (LP mode); ensures <±2.4 mV output shift over 1 V input variation-critical for ADC reference stability. |
| Load Regulation | 40 mV max (LP mode, 1–100 mA); holds output within ±3.3% across full LP-mode load range. |
Pinout & Package
SOT23-5 package (Case 1212-01), 2.9 mm × 2.8 mm × 1.15 mm body, surface-mount, lead-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: Vin | Input power supply | Accepts 1.4–6.0 V; requires local 1.0 µF ceramic bypass capacitor for stability. |
| 2: GND | Power ground reference | Must be connected to low-impedance PCB ground plane; shared return for Vin and Vout paths. |
| 3: CE | Chip enable control | Active-high digital input; pulls output to high-impedance when low, reducing total system standby current. |
| 4: ECO | Mode selection control | High = Fast Transient mode (40 µA IQ, fast load response); Low = Low Power mode (3.5 µA IQ, reduced bandwidth). |
| 5: Vout | Regulated output | Delivers stable 1.2 V; requires 1.0–4.7 µF ceramic output capacitor with ≤10 mΩ ESR for phase margin >45°. |
Key Features
| Feature | Design Value |
|---|---|
| Three selectable operating modes | CE pin enables/disables regulation; ECO pin selects between Fast Transient (high PSRR, fast response) and Low Power (3.5 µA IQ) modes-no external components needed. |
| Low dropout at full load | 220 mV typical dropout at 200 mA (1.2 V version); enables use with single-cell Li-ion (3.0–4.2 V) or dual-cell alkaline (2.4–3.2 V) inputs. |
| Ultra-stable output accuracy | ±2% over temperature (−40°C to +85°C) and line/load in FT mode; eliminates need for post-regulation trimming in cost-sensitive consumer designs. |
| High ripple rejection | ≥60 dB at 1 kHz, ≥40 dB at 100 kHz (1.2 V output); mitigates noise coupling from switch-mode power supplies into analog/RF sections. |
| Thermal shutdown protection | Integrated junction temperature sensing disables output above +150°C; prevents damage during sustained overload or poor PCB heatsinking. |
Applications
| Wearable Health Monitor | Digital Camera Sensor Core |
|---|---|
Use Scenario: Continuous ECG signal acquisition powered by coin-cell battery. IC Role / Device Role / Timing Role: Primary 1.2 V supply for ultra-low-power MCU and analog front-end ASIC. Use Value: LP mode draws only 3.5 µA, extending battery life beyond 1 year; ±2% accuracy ensures consistent ADC reference voltage across temperature. | Use Scenario: High-speed image capture where sensor analog core requires clean, stable 1.2 V. IC Role / Device Role / Timing Role: Post-regulator for noise-sensitive image sensor pixel array and column ADC. Use Value: 60 dB PSRR at 1 kHz suppresses switching noise from main DC/DC converter; Fast Transient mode handles rapid current surges during frame readout. |
| Bluetooth LE Audio Earbud | Industrial Handheld Scanner |
Use Scenario: Compact earbud with Bluetooth SoC, MEMS mic, and Class-D amplifier. IC Role / Device Role / Timing Role: Dedicated 1.2 V rail for Bluetooth radio baseband processor core. Use Value: SOT23-5 footprint saves PCB area; ECO pin dynamically switches to FT mode during packet transmission bursts, ensuring voltage stability without undershoot. | Use Scenario: Rugged handheld scanner with barcode imager, laser driver, and ARM Cortex-M4 MCU. IC Role / Device Role / Timing Role: Secondary LDO supplying 1.2 V to MCU core and real-time clock oscillator. Use Value: −40°C to +85°C operating range guarantees reliability in warehouse environments; 200 mV dropout allows operation from partially discharged 3.6 V Li-ion packs. |
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/MB | Fixed 1.2 V, 250 mA, 6 µA IQ (no multi-mode control); SOT23-3 package (no ECO/CE pins). | Lacks programmable mode switching; simpler interface but no Fast Transient optimization. | Select when board space is critical and only basic LDO functionality is required-no dynamic mode adjustment needed. |
| Torex XC6206P122MR-G | Fixed 1.2 V, 250 mA, 1 µA IQ, no ECO pin; SOT23-5 but only CE control (no LP/FT modes). | Lower quiescent current but no transient-optimized mode; limited PSRR (50 dB @ 1 kHz). | Prefer for ultra-long-life battery applications where peak transient performance is secondary to minimum IQ. |
Compared with MCP1700T-1202E/MB and XC6206P122MR-G, the NCP584HSN12T1 uniquely provides on-the-fly trade-off between ultra-low power (3.5 µA) and high-performance transient response (40 µA, fast loop) via a single ECO pin-enabling adaptive power management not available in standard single-mode LDOs.
Availability
NCP584HSN12T1 is available at Aetrix Electronics and suitable for wearable health monitors, Bluetooth LE audio devices, industrial handheld scanners, and digital camera sensor cores requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for NCP584HSN12T1 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 manufacturer specializing in energy-efficient silicon solutions for automotive, industrial, cloud, medical, and IoT applications.
The NCP584 series belongs to onsemi's precision analog power management portfolio, engineered specifically for battery-operated portable electronics demanding high accuracy, low IQ, and dynamic mode adaptability in minimal footprints.
FAQ
What output voltage does the NCP584HSN12T1 regulate to, and how is it set?
The NCP584HSN12T1 regulates to a fixed 1.2 V output. This value is factory-trimmed and non-adjustable-no external resistors are required. The "12" in the part number explicitly denotes the 1.2 V nominal output, confirmed in the Ordering Information table (page 11) and Electrical Characteristics section (page 2) of the datasheet.
How does the ECO pin affect the performance of the NCP584HSN12T1?
The ECO pin selects between two active operating modes: when pulled high (to Vin), it enables Fast Transient mode (40 µA supply current, optimized for load step response); when pulled low (to GND), it activates Low Power mode (3.5 µA supply current, reduced bandwidth). The NCP584HSN12T1 datasheet specifies distinct line/load regulation, PSRR, and dropout values for each mode-ECO is essential for dynamic power optimization.
What is the maximum input voltage rating for the NCP584HSN12T1?
The absolute maximum input voltage (Vin) for the NCP584HSN12T1 is 6.5 V, as stated in the Maximum Ratings table (page 2). For reliable operation, the recommended input voltage range is 1.4 V to 6.0 V per the Electrical Characteristics table-exceeding 6.0 V risks parametric degradation even if below the 6.5 V absolute limit.
Can the NCP584HSN12T1 be used with ceramic output capacitors, and what value is recommended?
Yes, the NCP584HSN12T1 is fully compatible with ceramic output capacitors. The datasheet validates stability with 1.0 µF, 2.2 µF, and 4.7 µF X5R/X7R types (Figures 29–30). A 2.2 µF ceramic capacitor is recommended for general-purpose use-providing optimal balance of transient response, size, and ESR (<10 mΩ) to ensure phase margin >45°.
Does the NCP584HSN12T1 include thermal protection, and how does it behave under overload?
Yes, the NCP584HSN12T1 includes thermal shutdown protection. When the junction temperature exceeds approximately +150°C, the device disables the output to prevent damage. Recovery is automatic once the die cools below the hysteresis threshold (~140°C). This behavior is documented in the Absolute Maximum Ratings (TJ = −40°C to +85°C operating, +150°C storage) and implied by onsemi's standard LDO safety architecture across the NCP584 family.
NCP584HSN12T1 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
NCP584HSN12T1 FAQ
1.How can I place an order for NCP584HSN12T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP584HSN12T1 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 NCP584HSN12T1 reliable?
The price and inventory of NCP584HSN12T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP584HSN12T1 is usually 5 days.
3.What payment methods are accepted for NCP584HSN12T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP584HSN12T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP584HSN12T1?
NCP584HSN12T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP584HSN12T1 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 NCP584HSN12T1?
For technical support, including NCP584HSN12T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP584HSN12T1 requirements.
6.How does Aetrix verify that NCP584HSN12T1 is sourced from the original manufacturer or authorized distributors?
All NCP584HSN12T1 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 NCP584HSN12T1 meets industry standards.
7.What is the process for return or replacement of NCP584HSN12T1?
All NCP584HSN12T1 units undergo pre-shipment inspection (PSI). If there is an issue with NCP584HSN12T1, 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 NCP584HSN12T1 part is unused and in its original packaging.
Return procedure for NCP584HSN12T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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