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onsemi NCP4589DMX18TCG
- Part No.:
- NCP4589DMX18TCG
- Manufacturer:
- onsemi
- Package:
- 6-XFDFN
- Datasheet:
-
NCP4589DMX18TCG.pdf
- Description:
- IC REG LINEAR 1.8V 300MA 6XDFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,514
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Product details
Overview
NCP4589DMX18TCG from onsemi is a 300 mA tri-mode CMOS LDO voltage regulator with 1.8 V fixed output, operating from 1.4 V to 5.25 V input. It features automatic switching between low-power (1.0 µA quiescent current at VOUT ≤ 1.85 V), fast-response (55 µA), and standby (0.1 µA) modes based on load current, and includes Auto Eco (AE) and chip enable (CE) control pins. It is used in portable image sensors and battery-powered camera modules where ultra-low quiescent current and fast transient response are critical.
For engineers reviewing the NCP4589DMX18TCG datasheet, pinout, applications, or equivalent options, key selection criteria include its 230 mV dropout at 300 mA/2.8 V, ±1% output accuracy above 2 V, 70 dB PSRR at 1 kHz in fast mode, stable operation with ceramic capacitors, and XDFN-6 1.2×1.2×0.4 mm package for space-constrained designs.
Technical Context
The NCP4589DMX18TCG implements a tri-mode architecture: low-power mode activates below ~1–2 mA load (quiescent current ≤1.0 µA), fast mode engages above ~8 mA (supply current 55 µA, PSRR 70 dB @ 1 kHz), and standby mode applies when CE = 0 V (0.1 µA). Mode transition thresholds are asymmetric-switch-over from light to heavy load occurs at IOUTH = 8.0 mA (typ.), while return to low-power mode triggers at IOUTL = 1.0–2.0 mA (typ.).
It integrates fold-back current limiting, output discharge capability (D-version), and operates stably with ≥1 µF ceramic output capacitance. The AE pin allows forced entry into fast mode (AE ≥ 1.0 V) or auto-eco operation (AE ≤ 0.4 V), decoupling dynamic performance from enable control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.8 V, ±1% accuracy (VOUT > 2 V, TJ = 25 °C); ±1.5% over −40 °C to +85 °C |
| Max Output Current | 300 mA continuous; short-circuit current limit of 50 mA protects against sustained overload |
| Dropout Voltage | 230 mV typical at IOUT = 300 mA, VOUT = 2.8 V; enables regulation from VIN as low as 2.03 V |
| Quiescent Current | 1.0 µA in low-power mode (VOUT ≤ 1.85 V); 55 µA in fast mode; 0.1 µA in standby |
| PSRR | 70 dB at 1 kHz in fast mode; ensures robust noise rejection for sensitive analog/RF rails |
| Line Regulation | 0.02%/V typical in fast mode; minimizes output variation across wide input range (1.4–5.25 V) |
| Thermal Resistance | RJA = 250 °C/W (XDFN-6); requires minimal PCB copper for thermal management at full load |
Pinout & Package
XDFN-6 package: 1.2 mm × 1.2 mm × 0.4 mm body, 0.4 mm pitch, wettable flank terminals, Pb-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input supply pin | Accepts 1.4–5.25 V; requires local 1 µF ceramic decoupling capacitor |
| GND | Ground reference | Common return for input, output, and internal circuitry; must be low-impedance |
| CE | Chip enable control | Active-high logic input; internal pull-down; tie to VIN if always enabled |
| VOUT | Regulated output | Delivers stable 1.8 V; supports ≥1 µF ceramic output capacitor for stability |
| AE | Auto Eco mode select | Forces fast mode if ≥1.0 V; enables auto-switching if ≤0.4 V; no external pull required |
| NC | No connection | Terminal 5 is unconnected; must not be soldered or biased |
Key Features
| Feature | Design Value |
|---|---|
| Tri-mode power optimization | Automatically selects low-power (1.0 µA), fast (55 µA), or standby (0.1 µA) mode to minimize total system energy use across dynamic load profiles |
| Ultra-thin XDFN-6 package | 1.2×1.2×0.4 mm footprint enables integration into compact camera modules and wearable image sensor assemblies |
| Fast transient response | Sub-10 µs recovery from 1–50 mA load steps (AE = VIN) ensures stable power for high-speed image capture circuits |
| Stable with ceramic capacitors | Eliminates need for tantalum or electrolytic output caps-reducing BOM cost, size, and aging-related failure risk |
| Integrated output discharge | D-version includes active VOUT-to-GND transistor, enabling rapid output discharge during shutdown for safe sequencing |
Applications
| Image Sensor Power | Portable Camera Module |
|---|---|
Use Scenario: Powering CMOS image sensors (e.g., Sony IMX series) in smartphones and action cameras requiring clean, low-noise 1.8 V bias. IC Role / Device Role / Timing Role: Primary LDO delivering regulated 1.8 V core voltage with high PSRR to suppress digital switching noise from SoC or ISP. Use Value: 70 dB PSRR at 1 kHz prevents pixel noise and banding artifacts; 230 mV dropout enables longer battery runtime from single-cell Li-ion. | Use Scenario: Supplying autofocus actuators and ISP interface logic in compact USB or MIPI camera modules. IC Role / Device Role / Timing Role: Secondary LDO providing tightly regulated 1.8 V for high-speed serial interfaces (MIPI D-PHY, CSI-2). Use Value: Fast mode activation under burst data transfer ensures stable signal integrity; XDFN-6 footprint matches module height constraints (<0.5 mm). |
| Wearable Biometric Sensor | Low-Power IoT Edge Node |
Use Scenario: Powering optical heart-rate monitoring (PPG) sensors in smartwatches with multi-day battery life requirements. IC Role / Device Role / Timing Role: Always-on LDO supplying 1.8 V to analog front-end and ADC, operating primarily in low-power mode. Use Value: 1.0 µA quiescent current extends shelf life and operational duration; AE pin enables firmware-controlled performance scaling. | Use Scenario: Regulating power for BLE SoCs (e.g., nRF52840) and environmental sensors in battery-operated edge nodes. IC Role / Device Role / Timing Role: System LDO managing sleep/wake transitions-low-power mode during deep sleep, fast mode during radio transmission. Use Value: Asymmetric mode switching (1 mA exit, 8 mA entry) prevents oscillation near threshold; CE pin enables synchronized system-level power gating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO voltage regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1804T-1802I/OT | Fixed 1.8 V, 150 mA max, 1.8 µA IQ, no tri-mode or AE pin | Lacks auto-switching and fast transient capability; suited for static low-current loads only | Select when cost sensitivity outweighs dynamic performance needs and load < 150 mA |
| TPL7407LPGEDR | 1.8 V, 300 mA, 25 µA IQ, no low-power mode or AE control | Single-mode design; higher IQ than NCP4589DMX18TCG low-power mode; no output discharge | Choose for simpler enable-only control and where 25 µA standby is acceptable |
Compared with MCP1804T-1802I/OT and TPL7407LPGEDR, the NCP4589DMX18TCG uniquely delivers sub-µA quiescent current *with* 300 mA capability and adaptive tri-mode operation-enabling both ultra-long battery life and responsive performance in the same design.
Availability
NCP4589DMX18TCG is available at Aetrix Electronics and suitable for portable imaging systems, wearable biometric monitors, and battery-powered IoT edge nodes requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for NCP4589DMX18TCG 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, with leadership in power management, analog, and sensor technologies.
The NCP4589 family is part of onsemi's precision LDO portfolio designed specifically for ultra-low-power, high-transient-performance applications in portable imaging, wearables, and battery-constrained edge devices.
FAQ
What is the output voltage tolerance of the NCP4589DMX18TCG over temperature?
The NCP4589DMX18TCG provides ±1% output voltage accuracy at TJ = 25 °C for VOUT > 2 V. For the 1.8 V version, the datasheet specifies ±20 mV at 25 °C and ±30 mV over −40 °C to +85 °C ambient. This corresponds to ±1.11% and ±1.67% tolerance respectively-tight enough for image sensor core rail requirements without external trimming.
Does the NCP4589DMX18TCG require an external resistor to set output voltage?
No, the NCP4589DMX18TCG is a fixed-output device with factory-trimmed 1.8 V regulation. It does not support adjustable output via external resistors. All variants-including NCP4589DMX18TCG-are preset at manufacture and verified per Electrical Characteristics tables in the datasheet.
How does the AE pin affect transient response in the NCP4589DMX18TCG?
When AE is pulled high (≥1.0 V), the NCP4589DMX18TCG remains in fast mode regardless of load, delivering 70 dB PSRR and sub-10 µs load transient recovery. When AE is low (≤0.4 V), it auto-switches to low-power mode below ~2 mA, increasing transient settling time but reducing IQ to 1.0 µA-enabling optimal trade-off between efficiency and responsiveness.
Is the NCP4589DMX18TCG compatible with 1 µF ceramic output capacitors?
Yes, the NCP4589DMX18TCG is explicitly characterized and guaranteed stable with ≥1 µF ceramic output capacitors, as confirmed in the Application Information section and Typical Characteristics (e.g., Figure 51–70 load transients). Tantalum or high-ESR capacitors are discouraged due to potential instability.
What is the thermal performance of the NCP4589DMX18TCG in its XDFN-6 package?
The NCP4589DMX18TCG in XDFN-6 has a junction-to-air thermal resistance (RJA) of 250 °C/W. At 300 mA output and 230 mV dropout (70 mW dissipation), this yields ~17.5 °C rise above ambient-well within the −40 °C to +85 °C operating range without heatsinking, assuming standard 2-layer PCB layout with adequate copper pour.
NCP4589DMX18TCG 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):
- 0.5V @ 300mA
- Current - Output:
- 300mA
- 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)
NCP4589DMX18TCG FAQ
1.How can I place an order for NCP4589DMX18TCG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP4589DMX18TCG 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 NCP4589DMX18TCG reliable?
The price and inventory of NCP4589DMX18TCG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP4589DMX18TCG is usually 5 days.
3.What payment methods are accepted for NCP4589DMX18TCG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP4589DMX18TCG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP4589DMX18TCG?
NCP4589DMX18TCG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP4589DMX18TCG 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 NCP4589DMX18TCG?
For technical support, including NCP4589DMX18TCG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP4589DMX18TCG requirements.
6.How does Aetrix verify that NCP4589DMX18TCG is sourced from the original manufacturer or authorized distributors?
All NCP4589DMX18TCG 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 NCP4589DMX18TCG meets industry standards.
7.What is the process for return or replacement of NCP4589DMX18TCG?
All NCP4589DMX18TCG units undergo pre-shipment inspection (PSI). If there is an issue with NCP4589DMX18TCG, 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 NCP4589DMX18TCG part is unused and in its original packaging.
Return procedure for NCP4589DMX18TCG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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