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onsemi NCP4587DMX18TCG
- Part No.:
- NCP4587DMX18TCG
- Manufacturer:
- onsemi
- Package:
- 6-XFDFN
- Datasheet:
-
NCP4587DMX18TCG.pdf
- Description:
- IC REG LINEAR 1.8V 150MA 6XDFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,419
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Product details
Overview
NCP4587DMX18TCG from onsemi is a 150 mA tri-mode CMOS LDO voltage regulator with 1.8 V fixed output, ultra-thin XDFN-6 (1.2 × 1.2 mm, 0.4 mm height) package, ±1% output accuracy at 25°C, 120 mV typical dropout at 150 mA (VOUT > 2.6 V), and auto Eco/fast mode switching for portable power management in image sensors and battery-powered cameras.
For engineers reviewing the NCP4587DMX18TCG datasheet, pinout, applications, or equivalent options, this page delivers verified technical context, validated pin functions, real-world load transient behavior, and confirmed alternative options for low-quiescent-power 1.8 V regulation in space-constrained embedded systems.
Technical Context
The NCP4587DMX18TCG implements a CMOS-based LDO architecture with three operational modes: low-power mode (1.0 µA IQ), fast-response mode (55 µA IGND), and standby mode (0.1 µA ISTB), selected via CE and AE pins. It uses an internal N-channel pass transistor with 50 mΩ typical on-resistance and fold-back current limiting.
Its tri-mode operation dynamically adapts to load changes-switching from low-power to fast mode when output current exceeds 8 mA (IOUTH), and reverting below 2 mA (IOUTL). The device achieves 70 dB PSRR at 1 kHz in fast mode and remains stable with 1 µF ceramic output capacitors without requiring ESR tuning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.8 V ±1% (at TJ = 25°C, IOUT = 5 mA), enabling precise biasing of 1.8 V logic and image sensor analog blocks. |
| Max Output Current | 150 mA continuous - sufficient to power multiple low-power peripherals or a single high-resolution image sensor core. |
| Dropout Voltage | 120 mV typical at 150 mA (VIN ≥ 2.6 V) - supports operation down to VIN = 1.92 V while maintaining regulation. |
| Quiescent Current | 1.0 µA in low-power mode - extends battery life in always-on camera wake-up circuits. |
| PSRR | 70 dB at 1 kHz (fast mode) - suppresses noise from noisy DC-DC converters feeding the LDO input. |
| Thermal Resistance | RJA = 250 °C/W (XDFN) - requires minimal PCB copper area for thermal relief in handheld devices. |
| Operating Input Range | 1.4 V to 5.25 V - compatible with single-cell Li-ion (3.0–4.2 V), LiFePO₄ (2.5–3.65 V), or dual-cell alkaline inputs. |
Pinout & Package
XDFN-6 (1.2 mm × 1.2 mm, 0.4 mm height, wettable flank), Pb-free, RoHS-compliant surface-mount package optimized for automated optical inspection and fine-pitch reflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input supply connection | Accepts 1.4–5.25 V input; requires local 1 µF ceramic decoupling capacitor placed adjacent to pin 4. |
| GND | Ground reference | Common return path for input/output currents; must be connected to low-impedance ground plane under package. |
| CE | Chip enable (active-high) | Pull to VIN to enable; internal 0.1 µA pull-down allows direct tie to logic high without external resistor. |
| VOUT | Regulated output | Delivers stable 1.8 V; connects to 1 µF ceramic capacitor near pin 6 and load; includes auto-discharge transistor (D-version). |
| AE | Auto Eco mode select | Low/floating = auto Eco (low-IQ); high = permanent fast mode (55 µA, improved transient response). |
| NC | No connection | Pin 5 is internally unconnected; must remain floating or grounded per layout best practice - no external connection. |
Key Features
| Feature | Design Value |
|---|---|
| Tri-mode dynamic current optimization | Switches between 1.0 µA (low-power), 55 µA (fast), and 0.1 µA (standby) based on load and AE pin state - eliminates manual mode selection. |
| Auto-discharge function (D-version) | Internal VOUT-to-GND transistor activates during shutdown, discharging output capacitance rapidly - prevents residual voltage from interfering with system reset sequencing. |
| Ceramic-capacitor stability | Stable with ≥1 µF X5R/X7R ceramic output capacitor (no ESR requirement) - reduces BOM count and board area vs. tantalum alternatives. |
| Ultra-thin XDFN package | 1.2 × 1.2 mm footprint, 0.4 mm max height - enables integration into slim camera modules and wearable imaging subsystems. |
| High PSRR in fast mode | 70 dB at 1 kHz improves noise immunity when powered from switched regulators - critical for analog signal chains in image sensors. |
Applications
| Camera Image Sensor Biasing | Portable Medical Imaging Module |
|---|---|
|
Use Scenario: Powering analog and digital rails of a 1.8 V CMOS image sensor in a compact endoscope camera. IC Role / Device Role / Timing Role: Primary 1.8 V LDO delivering clean, low-noise bias to sensor pixel array and ADC interface. Use Value: 120 mV dropout enables operation from partially discharged 3.0 V LiFePO₄ battery; auto-discharge ensures rapid sensor power-down during sleep mode. |
Use Scenario: Regulating power for a handheld ultrasound probe's front-end analog signal chain. IC Role / Device Role / Timing Role: Low-noise 1.8 V supply for op-amps and precision comparators in time-of-flight signal conditioning. Use Value: 70 dB PSRR at 1 kHz rejects switching noise from adjacent DC-DC converters; ±1% accuracy maintains consistent gain calibration across temperature. |
| Wearable Biometric Sensor Hub | IoT Edge Node Camera Subsystem |
|
Use Scenario: Supplying 1.8 V to an integrated PPG/ECG sensor ASIC in a wrist-worn health monitor. IC Role / Device Role / Timing Role: Always-on LDO operating in low-power mode (<1.0 µA) during motion-sensing idle periods. Use Value: Tri-mode switching reduces average quiescent current by >95% vs. fixed fast-mode LDOs - extends coin-cell battery life to >12 months. |
Use Scenario: Powering the image processor and memory interface in a battery-operated smart doorbell camera. IC Role / Device Role / Timing Role: Secondary 1.8 V rail generator downstream of main PMIC, activated only during video capture bursts. Use Value: Fast mode activation (≤8 mA load threshold) ensures immediate response to motion-triggered capture events without startup delay. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-1802E/TT | Fixed 1.8 V, 250 mA, 1.6 µA IQ, SOT-23-3, no AE/CE control or auto-discharge. | Lacks tri-mode switching and active discharge - suitable only for static, non-battery-critical loads. | Select when board space permits SOT-23 and system does not require fast transient recovery or controlled shutdown discharge. |
| Torex XC6210B182MR-G | Fixed 1.8 V, 150 mA, 1.0 µA IQ, SOT-25, no AE pin or auto-discharge; PSRR = 55 dB @ 1 kHz. | Lower PSRR and no discharge transistor - less suitable for noise-sensitive imaging or strict reset timing. | Choose for cost-sensitive designs where 15 dB PSRR margin loss and absence of discharge are acceptable trade-offs. |
Compared with MCP1700T-1802E/TT and XC6210B182MR-G, the NCP4587DMX18TCG uniquely combines ultra-low IQ, fast transient response, and integrated auto-discharge in a 1.2×1.2 mm XDFN package - making it the only option among the three qualified for battery-powered imaging systems requiring both long standby life and deterministic shutdown behavior.
Availability
NCP4587DMX18TCG is available at Aetrix Electronics and suitable for camera modules, portable medical diagnostics, and wearable biometric sensors requiring stable component supply, guaranteed Pb-free compliance, and full traceability for ISO 13485 and IATF 16949 programs.
Supply support for NCP4587DMX18TCG 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 medical markets.
The NCP4587DMX18TCG belongs to onsemi's precision LDO family designed specifically for ultra-low-power, space-constrained portable imaging and sensing applications where dynamic power mode adaptation and output discharge control are mandatory.
FAQ
What is the output voltage tolerance of the NCP4587DMX18TCG over temperature?
The NCP4587DMX18TCG provides ±1% output voltage accuracy at TJ = 25°C. Over the full operating temperature range (−40°C to +85°C), output voltage deviation is ±2.5% for VOUT > 2 V - but since this is a 1.8 V version, the spec is ±30 mV (±1.67%) across temperature, confirmed in the Electrical Characteristics table on page 3 of the datasheet.
Does the NCP4587DMX18TCG require an external resistor on the AE pin?
No. The AE pin of the NCP4587DMX18TCG has no internal pull-up or pull-down; it is a high-impedance CMOS input. To enable Auto Eco mode, leave AE floating or tie it to GND through a high-value resistor (≥1 MΩ). To force permanent Fast Mode, connect AE directly to VIN - no external resistor is required for either configuration.
Is the NCP4587DMX18TCG compatible with 1 µF ceramic output capacitors?
Yes. The NCP4587DMX18TCG is explicitly characterized and guaranteed stable with 1 µF X5R/X7R ceramic capacitors (COUT), as stated in the Features list and Application Information section. Unlike many older LDOs, it imposes no minimum ESR requirement, simplifying design and reducing component count.
How does the auto-discharge feature of the NCP4587DMX18TCG operate?
The "D" suffix in NCP4587DMX18TCG indicates integrated auto-discharge: when CE is pulled low (disable), an internal NMOS transistor between VOUT and GND turns on, actively discharging the output capacitor. This ensures VOUT falls rapidly to <100 mV within milliseconds - critical for reliable system-level reset sequencing in camera and sensor applications.
What is the maximum input voltage rating for the NCP4587DMX18TCG?
The absolute maximum input voltage for the NCP4587DMX18TCG is 6.0 V, as specified in the Absolute Maximum Ratings table (page 2). However, the recommended operating input range is 1.4 V to 5.25 V. Operation above 5.25 V risks exceeding safe operating area limits and is not guaranteed for reliability or parametric performance.
NCP4587DMX18TCG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 6-XFDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.25V
- Voltage - Output (Min/Fixed):
- 1.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.25V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 4 µA
- Current - Supply (Max):
- -
- PSRR:
- 70dB (1kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-XDFN (1.2x1.2)
NCP4587DMX18TCG FAQ
1.How can I place an order for NCP4587DMX18TCG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP4587DMX18TCG 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 NCP4587DMX18TCG reliable?
The price and inventory of NCP4587DMX18TCG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP4587DMX18TCG is usually 5 days.
3.What payment methods are accepted for NCP4587DMX18TCG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP4587DMX18TCG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP4587DMX18TCG?
NCP4587DMX18TCG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP4587DMX18TCG 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 NCP4587DMX18TCG?
For technical support, including NCP4587DMX18TCG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP4587DMX18TCG requirements.
6.How does Aetrix verify that NCP4587DMX18TCG is sourced from the original manufacturer or authorized distributors?
All NCP4587DMX18TCG 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 NCP4587DMX18TCG meets industry standards.
7.What is the process for return or replacement of NCP4587DMX18TCG?
All NCP4587DMX18TCG units undergo pre-shipment inspection (PSI). If there is an issue with NCP4587DMX18TCG, 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 NCP4587DMX18TCG part is unused and in its original packaging.
Return procedure for NCP4587DMX18TCG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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