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onsemi NCP4587DMX12TCG
- Part No.:
- NCP4587DMX12TCG
- Manufacturer:
- onsemi
- Package:
- 6-XFDFN
- Datasheet:
-
NCP4587DMX12TCG.pdf
- Description:
- IC REG LINEAR 1.2V 150MA 6XDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,803
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Product details
Overview
NCP4587DMX12TCG from onsemi is a 150 mA tri-mode CMOS LDO voltage regulator with 1.2 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-discharge functionality. It serves as a low-noise, high-PSRR power supply for image sensors and portable camera modules.
For engineers reviewing the NCP4587DMX12TCG datasheet, pinout, applications, or equivalent options, key selection criteria include its tri-mode operation (low-power/fast/standby), 1.0 µA quiescent current in low-power mode, 55 µA fast-mode supply current, AE pin-controlled mode selection, and guaranteed stability with 1 µF ceramic output capacitors.
Technical Context
The NCP4587DMX12TCG implements a CMOS-based LDO architecture with integrated N-channel pass transistor, enabling very low dropout and compatibility with ceramic output capacitors. Its tri-mode control logic dynamically switches between low-power mode (1.0 µA IQ) below 2 mA load and fast-response mode above 8 mA load - or locks into permanent fast mode via the AE pin.
It features an internal auto-discharge transistor between VOUT and GND activated during shutdown, ensuring rapid output capacitor discharge to prevent system latch-up. The device supports input voltages from 1.4 V to 5.25 V and delivers 1.2 V output with ±1% initial accuracy (VOUT > 2 V), ±50 ppm/°C temperature coefficient, and 70 dB PSRR at 1 kHz in fast mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.2 V ±1% (at TJ = 25°C, IOUT = 5 mA), enabling precise core biasing for low-voltage image sensors. |
| Max Output Current | 150 mA continuous, supporting peak loads in compact camera modules without thermal derating under typical PCB layout. |
| Dropout Voltage | 120 mV typical at 150 mA (VIN ≥ 2.6 V), allowing operation from single-cell Li-ion (3.0 V min) with ≥1.8 V headroom. |
| Quiescent Current | 1.0 µA in low-power mode (IOUT < 2 mA), extending battery life in always-on imaging subsystems. |
| PSRR | 70 dB at 1 kHz in fast mode, suppressing switching noise from adjacent DC-DC converters in mixed-signal camera PCBs. |
| Thermal Resistance | RJA = 250 °C/W (XDFN), requiring minimal copper area for thermal management in space-constrained modules. |
| Auto-Discharge | Integrated VOUT-to-GND discharge path activated during CE = low, eliminating external bleed resistors and reducing BOM count. |
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 (AOI) and high-density portable PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input supply connection | Accepts 1.4–5.25 V; requires local 1 µF ceramic decoupling to minimize line transients and EMI coupling. |
| GND | Power ground reference | Must be connected to low-impedance ground plane; shared return path for VIN, VOUT, CE, and AE pins. |
| CE | Chip enable (active-high) | Pulled internally low; tie to VIN if always-on operation required; enables system-level power sequencing control. |
| VOUT | Regulated output | Delivers stable 1.2 V; connects directly to load and 1 µF ceramic capacitor; includes internal discharge transistor. |
| AE | Auto Eco mode select | Logic-high forces permanent fast mode (55 µA IQ); floating or low enables automatic tri-mode switching. |
| NC | No connection | Internally unconnected terminal; must remain unconnected per datasheet to avoid parametric shift or reliability risk. |
Key Features
| Feature | Design Value |
|---|---|
| Tri-mode dynamic operation | Automatically transitions between 1.0 µA low-power mode (IOUT < 2 mA) and 55 µA fast mode (IOUT > 8 mA), optimizing efficiency vs. transient response. |
| Ultra-low-profile XDFN package | 1.2 × 1.2 × 0.4 mm footprint enables placement beneath camera modules or in stacked-die assemblies where Z-height is constrained. |
| Integrated auto-discharge | Eliminates need for external 10–100 kΩ discharge resistor, reducing component count and board area while ensuring safe VOUT ramp-down during shutdown. |
| Ceramic-capacitor stability | Stable with ≥1 µF X5R/X7R ceramic output capacitor (ESR < 10 mΩ), avoiding costly tantalum or polymer alternatives. |
| High PSRR at audio frequencies | 70 dB rejection at 1 kHz suppresses ripple from buck converter switching harmonics, critical for analog sensor signal integrity. |
Applications
| Mobile Camera Modules | Wearable Image Sensors |
|---|---|
|
Use Scenario: Powering CIS (CMOS Image Sensor) analog and digital cores in smartphone rear/front cameras. IC Role / Device Role / Timing Role: Primary 1.2 V LDO supplying sensor pixel array and ADC interface, synchronized with frame capture timing. Use Value: Tri-mode operation extends standby battery life while maintaining fast load transient response (<10 µs recovery) during burst capture sequences. |
Use Scenario: Biasing miniature image sensors in AR glasses or fitness trackers with strict size and thermal limits. IC Role / Device Role / Timing Role: Compact, low-Z-height power source for always-on vision processing units operating in intermittent wake/sleep cycles. Use Value: XDFN-6 package fits within 1.5 mm² board area; 1.0 µA quiescent current enables multi-week battery runtime in motion-triggered capture mode. |
| Industrial Machine Vision Sensors | Medical Endoscopic Imaging |
|
Use Scenario: Providing clean 1.2 V rail for high-speed global-shutter sensors in factory automation cameras. IC Role / Device Role / Timing Role: Low-noise, high-PSRR regulator isolating sensor analog front-end from noisy industrial DC bus supplies. Use Value: 70 dB PSRR at 1 kHz prevents switching noise from 24 V DC-DC converters from degrading SNR in 12-bit+ image data paths. |
Use Scenario: Powering miniaturized CMOS sensors in disposable endoscopes with single-cell coin-cell batteries. IC Role / Device Role / Timing Role: Safety-critical regulated supply enabling rapid sensor startup and controlled shutdown with auto-discharge. Use Value: Integrated VOUT discharge ensures no residual voltage remains after power-off, meeting IEC 60601-1 leakage current requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6210B122MR-G | 150 mA, 1.2 V fixed, SOT-25 package (2.9 × 2.8 mm), no AE pin or auto-discharge; 2.5 µA IQ in standby. | Lacks tri-mode control and VOUT discharge; suitable only where board space permits larger SOT-25 and external discharge is acceptable. | Select when cost sensitivity outweighs size/feature requirements and system design accommodates external discharge circuitry. |
| Richtek RT9080L-12PU5 | 200 mA, 1.2 V fixed, DFN-6 (1.5 × 1.5 mm), no AE pin, 0.5 µA IQ, but no auto-discharge and lower PSRR (60 dB @ 1 kHz). | Higher current rating but larger footprint and weaker noise rejection; lacks integrated discharge path. | Prefer for higher-current sensor rails where PSRR > 65 dB is not mandatory and board area allows 1.5 mm² footprint. |
Compared with Torex XC6210B122MR-G and Richtek RT9080L-12PU5, the NCP4587DMX12TCG uniquely combines XDFN-6 miniaturization, tri-mode IQ optimization, and integrated auto-discharge - making it the only option meeting simultaneous constraints of sub-1.5 mm² area, <2 µA standby, and safe shutdown in space-limited imaging systems.
Availability
NCP4587DMX12TCG is available at Aetrix Electronics and suitable for mobile camera modules, wearable image sensors, industrial machine vision sensors, and medical endoscopic imaging requiring stable component supply across high-mix, low-volume production runs.
Supply support for NCP4587DMX12TCG 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 focused on energy-efficient electronics, delivering silicon solutions for automotive, industrial, cloud, and sensing applications.
The NCP4587DMX12TCG belongs to onsemi's precision LDO family designed specifically for battery-powered imaging and portable RF-sensitive systems demanding ultra-low IQ, fast transient response, and minimal board area.
FAQ
What is the function of the AE pin on the NCP4587DMX12TCG?
The AE (Auto Eco) pin on the NCP4587DMX12TCG controls operational mode: when pulled low or left floating, the device automatically switches between low-power mode (1.0 µA IQ) and fast mode based on load current; when driven high, it locks into permanent fast mode (55 µA IQ) for consistent transient response. This pin enables system-level trade-off tuning between battery life and dynamic performance without firmware intervention.
Does the NCP4587DMX12TCG require an external discharge resistor?
No, the NCP4587DMX12TCG does not require an external discharge resistor. It integrates an internal N-channel transistor between VOUT and GND that activates automatically when the CE pin is driven low, discharging the output capacitor rapidly. This eliminates BOM cost and board area associated with discrete discharge networks while ensuring predictable shutdown behavior in safety-critical imaging systems.
What is the minimum input voltage required for stable 1.2 V output from the NCP4587DMX12TCG?
The NCP4587DMX12TCG requires a minimum input voltage of 1.4 V, but stable 1.2 V regulation demands sufficient headroom above dropout. With 120 mV typical dropout at 150 mA (for VOUT > 2.6 V), and extrapolated ~150 mV at 1.2 V, VIN must be ≥1.35 V under light load and ≥1.45 V at full 150 mA load to maintain regulation - verified across −40°C to +85°C operating range.
Can the NCP4587DMX12TCG operate with a 1 µF ceramic output capacitor?
Yes, the NCP4587DMX12TCG is explicitly characterized and guaranteed stable with a 1 µF X5R or X7R ceramic output capacitor (ESR < 10 mΩ), as confirmed in the datasheet's APPLICATION INFORMATION section. Using smaller or higher-ESR capacitors may cause oscillation or degraded transient response; parallel ceramic capacitors are discouraged due to potential instability from distributed capacitance effects.
What is the thermal resistance (RJA) of the NCP4587DMX12TCG in its XDFN-6 package?
The NCP4587DMX12TCG in XDFN-6 package has a junction-to-air thermal resistance (RJA) of 250 °C/W, measured under standard JEDEC test conditions (1s2 pad, no airflow). This value assumes minimal copper pour; adding thermal vias to inner ground planes reduces effective RJA by up to 40%, enabling full 150 mA output at ambient temperatures up to 70°C in typical 4-layer PCB layouts.
NCP4587DMX12TCG 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):
- 1.2V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.4V @ 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)
NCP4587DMX12TCG FAQ
1.How can I place an order for NCP4587DMX12TCG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP4587DMX12TCG 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 NCP4587DMX12TCG reliable?
The price and inventory of NCP4587DMX12TCG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP4587DMX12TCG is usually 5 days.
3.What payment methods are accepted for NCP4587DMX12TCG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP4587DMX12TCG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP4587DMX12TCG?
NCP4587DMX12TCG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP4587DMX12TCG 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 NCP4587DMX12TCG?
For technical support, including NCP4587DMX12TCG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP4587DMX12TCG requirements.
6.How does Aetrix verify that NCP4587DMX12TCG is sourced from the original manufacturer or authorized distributors?
All NCP4587DMX12TCG 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 NCP4587DMX12TCG meets industry standards.
7.What is the process for return or replacement of NCP4587DMX12TCG?
All NCP4587DMX12TCG units undergo pre-shipment inspection (PSI). If there is an issue with NCP4587DMX12TCG, 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 NCP4587DMX12TCG part is unused and in its original packaging.
Return procedure for NCP4587DMX12TCG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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