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onsemi NCP4587DMX31TCG
- Part No.:
- NCP4587DMX31TCG
- Manufacturer:
- onsemi
- Package:
- 6-XFDFN
- Datasheet:
-
NCP4587DMX31TCG.pdf
- Description:
- IC REG LINEAR 3.1V 150MA 6XDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,503
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Product details
Overview
NCP4587DMX31TCG from onsemi is a 150 mA tri-mode CMOS LDO voltage regulator with auto-eco/fast/standby operation modes, 3.1 V fixed output, 120 mV typical dropout at 150 mA (VOUT ≥ 2.6 V), ±1% output accuracy (TA = 25°C), and stable operation with ceramic capacitors. It serves as a low-noise power supply for image sensors and portable camera modules requiring precise, low-quiescent-current regulation.
For engineers reviewing the NCP4587DMX31TCG datasheet, pinout, applications, or equivalent options, key selection criteria include tri-mode current consumption (1.0 µA low-power / 55 µA fast / 0.1 µA standby), AE-pin-controlled mode selection, auto-discharge capability, and XDFN-6 1.2×1.2 mm ultra-thin package compatibility with space-constrained PCB layouts.
Technical Context
The NCP4587DMX31TCG implements a CMOS-based LDO architecture with integrated N-channel pass transistor, fold-back current limiting, and dual-mode control via AE pin (low = Auto Eco, high = permanent Fast mode). Its internal reference and error amplifier enable ±1% output accuracy over temperature and line variations.
It supports dynamic load transient response optimization through mode switching: Fast mode activates above 8 mA output load (IOUTH) and deactivates below 1–2 mA (IOUTL), while CE pin enables full shutdown with 0.1 µA standby current. The device includes an internal output discharge transistor (D-version feature) activated during disable.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.1 V - eliminates external resistor network; ensures stable bias for 3.3 V-tolerant analog front-ends in image sensors. |
| Max Output Current | 150 mA - sufficient to power single-lane MIPI CSI-2 sensor interfaces or low-power FPGA I/O banks. |
| Dropout Voltage | 120 mV typ. at 150 mA (VOUT ≥ 2.6 V) - enables regulation from 3.22 V input, preserving battery runtime in 3.3 V systems. |
| Quiescent Current | 1.0 µA (Low Power Mode) - extends shelf life and standby time in always-on camera wake-on-motion applications. |
| PSRR | 70 dB at 1 kHz (Fast Mode) - suppresses switching noise from adjacent DC-DC converters feeding digital cores. |
| Accuracy | ±1% at TA = 25°C (VOUT > 2 V) - meets tight tolerance requirements for ADC reference buffers and precision analog signal chains. |
| Package | XDFN-6 (1.2 × 1.2 × 0.4 mm) - ultra-low profile footprint compatible with 0.4 mm pitch assembly and thin mobile camera modules. |
Pinout & Package
XDFN-6 package: 1.2 mm × 1.2 mm body, 0.4 mm height, 0.4 mm pitch, wettable flank terminals, Pb-free plating. Exposed thermal pad (pin 5) connected to GND for enhanced thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Input supply connection | Accepts 1.4–5.25 V input; requires local 1 µF ceramic decoupling to minimize line transients. |
| GND (Pin 2) | Power ground reference | Common return path for VIN, VOUT, CE, and AE; must be low-impedance and tied to thermal pad. |
| CE (Pin 3) | Chip enable (active-high) | Pull-down current source (0.1 µA); connect to VIN if always-on operation required. |
| VOUT (Pin 4) | Regulated output | Delivers 3.1 V ±1%; requires 1 µF ceramic capacitor placed adjacent to pin for stability. |
| AE (Pin 5) | Auto Eco mode select | Low = Auto Eco (1.0 µA IQ); high = permanent Fast mode (55 µA IQ, optimized transient response). |
| NC (Pin 6) | No connection | Not internally bonded; must remain unconnected and unpopulated on PCB. |
Key Features
| Feature | Design Value |
|---|---|
| Tri-mode operation | Automatically switches between Low Power (1.0 µA), Fast (55 µA), and Standby (0.1 µA) based on load and AE pin state - balances efficiency and responsiveness. |
| Auto-discharge function | Integrated N-channel discharge transistor pulls VOUT to GND during CE deactivation - prevents residual voltage hold-up in multi-rail camera systems. |
| Ceramic-capacitor stability | Stable with ≥0.47 µF X5R/X7R ceramics (no ESR requirement) - simplifies BOM and reduces board area vs. tantalum alternatives. |
| Ultra-thin XDFN package | 0.4 mm max height - enables integration into <1.0 mm total thickness camera modules without mechanical interference. |
| High PSRR in Fast mode | 70 dB @ 1 kHz - maintains clean 3.1 V supply for analog pixel readout circuits amid noisy SoC power domains. |
Applications
| Image Sensor Biasing | Portable Camera Core Supply |
|---|---|
Use Scenario: Powering analog front-end (AFE) and PLL circuits of CMOS image sensors in smartphones and action cameras. IC Role / Device Role / Timing Role: Primary 3.1 V LDO delivering low-noise, tightly regulated bias for sensor pixel arrays and timing generators. Use Value: ±1% accuracy and 70 dB PSRR ensure minimal clock jitter and consistent analog gain across operating temperature (−40°C to +85°C). |
Use Scenario: Supplying core logic and interface I/O of compact camera modules with MIPI CSI-2 output. IC Role / Device Role / Timing Role: Secondary LDO providing clean 3.1 V rail isolated from noisy main system DC-DC converter. Use Value: Tri-mode operation extends battery life during preview mode (low-power mode) and ensures fast transient recovery during video capture bursts. |
| Always-On Motion Detection | Low-Power IoT Vision Node |
Use Scenario: Continuous power to PIR+image sensor fusion circuitry in smart doorbells and security cameras. IC Role / Device Role / Timing Role: Always-on 3.1 V regulator enabling wake-on-motion with sub-µA quiescent current in standby. Use Value: 0.1 µA standby current (CE = low) and fast wake-up (<100 µs) support multi-year battery operation in lithium primary cells. |
Use Scenario: Power management for edge AI vision nodes using ultra-low-power microcontrollers and tiny cameras. IC Role / Device Role / Timing Role: Compact, thermally efficient LDO supplying 3.1 V to MCU core and sensor interface in space-constrained enclosures. Use Value: XDFN-6 package (1.2×1.2 mm) and 0.4 mm height allow placement directly beneath camera lens barrels without height penalty. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO voltage regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1703T-3102E/MB | Fixed 3.1 V, 250 mA, 6 µA IQ, SOT-23-5 - no tri-mode or auto-discharge; higher quiescent current than NCP4587DMX31TCG low-power mode. | Lacks AE-controlled mode switching and output discharge; suitable only where constant-fast-response is acceptable and board space permits larger SOT-23. | Select when design prioritizes higher output current headroom over ultra-low IQ and compact packaging. |
| Torex XC6219B312MR-G | Fixed 3.1 V, 150 mA, 1.0 µA IQ, SOT-25 - no AE pin, no auto-discharge, no Fast mode; single low-power mode only. | Missing tri-mode flexibility and output discharge; limited to static low-IQ applications without dynamic load transitions. | Select when system load is constant and discharge functionality is handled externally, and SOT-25 footprint is preferred. |
Compared with MCP1703T-3102E/MB and XC6219B312MR-G, the NCP4587DMX31TCG uniquely delivers sub-µA quiescent current *with* fast transient recovery and integrated discharge - critical for battery-powered vision systems requiring both longevity and responsiveness.
Availability
NCP4587DMX31TCG is available at Aetrix Electronics and suitable for portable camera modules, image sensor biasing, and always-on motion detection systems requiring stable component supply, long-term lifecycle support, and Pb-free XDFN packaging.
Supply support for NCP4587DMX31TCG 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, sensing, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The NCP4587DMX31TCG belongs to onsemi's high-efficiency LDO family designed specifically for ultra-low-power, space-constrained portable imaging and sensor applications demanding precision regulation and intelligent power-state management.
FAQ
What is the output voltage tolerance of the NCP4587DMX31TCG over temperature?
The NCP4587DMX31TCG provides ±1% output voltage accuracy at TA = 25°C for VOUT > 2 V. Over the full operating temperature range (−40°C to +85°C), accuracy degrades to ±1.5% (−2.5% to +1.5%) for VOUT > 2 V. This is confirmed in the Electrical Characteristics table on page 3 of the datasheet under "Output Voltage" test conditions.
Does the NCP4587DMX31TCG require an external resistor divider for output voltage setting?
No, the NCP4587DMX31TCG is a fixed-output LDO with factory-trimmed 3.1 V regulation. It does not use an external feedback network - the output voltage is internally set and requires no external resistors, simplifying layout and reducing BOM count.
How does the AE pin affect the NCP4587DMX31TCG's quiescent current and transient response?
When AE is low or floating, the NCP4587DMX31TCG operates in Auto Eco mode (1.0 µA IQ) and switches to Fast mode only during load steps >8 mA. When AE is high, it remains permanently in Fast mode (55 µA IQ), delivering superior load transient response at the cost of higher static current.
Is the NCP4587DMX31TCG's output discharge function enabled by default?
Yes - the "D" suffix in NCP4587DMX31TCG denotes the auto-discharge version. When CE is pulled low to disable the regulator, an internal transistor actively discharges the VOUT capacitor to GND, preventing residual voltage that could interfere with system reset sequencing.
What is the minimum input voltage required for the NCP4587DMX31TCG to maintain regulation at full load?
At 150 mA output current and 3.1 V nominal output, the NCP4587DMX31TCG requires VIN ≥ 3.22 V (3.1 V + 120 mV typical dropout) to maintain regulation. The absolute minimum input is 1.4 V, but dropout increases significantly below VOUT + 0.2 V - verified in Figure 5 and Figure 6 (Dropout vs. IOUT).
NCP4587DMX31TCG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 6-XFDFN
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.25V
- Voltage - Output (Min/Fixed):
- 3.1V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.18V @ 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)
NCP4587DMX31TCG FAQ
1.How can I place an order for NCP4587DMX31TCG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP4587DMX31TCG 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 NCP4587DMX31TCG reliable?
The price and inventory of NCP4587DMX31TCG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP4587DMX31TCG is usually 5 days.
3.What payment methods are accepted for NCP4587DMX31TCG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP4587DMX31TCG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP4587DMX31TCG?
NCP4587DMX31TCG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP4587DMX31TCG 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 NCP4587DMX31TCG?
For technical support, including NCP4587DMX31TCG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP4587DMX31TCG requirements.
6.How does Aetrix verify that NCP4587DMX31TCG is sourced from the original manufacturer or authorized distributors?
All NCP4587DMX31TCG 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 NCP4587DMX31TCG meets industry standards.
7.What is the process for return or replacement of NCP4587DMX31TCG?
All NCP4587DMX31TCG units undergo pre-shipment inspection (PSI). If there is an issue with NCP4587DMX31TCG, 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 NCP4587DMX31TCG part is unused and in its original packaging.
Return procedure for NCP4587DMX31TCG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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