My Inquiry
My Account
onsemi NCP4589DMX28TCG
- Part No.:
- NCP4589DMX28TCG
- Manufacturer:
- onsemi
- Package:
- 6-XFDFN
- Datasheet:
-
NCP4589DMX28TCG.pdf
- Description:
- IC REG LINEAR 2.8V 300MA 6XDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,824
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
NCP4589DMX28TCG from onsemi is a 300 mA tri-mode CMOS LDO voltage regulator with 2.8 V fixed output, operating from 1.4 V to 5.25 V input, featuring auto-eco mode switching at light loads (≤2 mA), fast-response mode above 8 mA, and pin-selectable permanent fast mode via AE pin. It delivers ±1% output accuracy at 25°C and supports battery-powered imaging systems requiring low quiescent current and stable low-noise power.
For engineers reviewing the NCP4589DMX28TCG datasheet, pinout, applications, or equivalent options, key selection criteria include dropout voltage (230 mV typ. at 300 mA), PSRR (70 dB at 1 kHz in fast mode), ceramic capacitor compatibility, thermal performance in XDFN package, and tri-mode current consumption trade-offs between 0.1 µA standby, 1.0 µA low-power, and 55 µA fast mode.
Technical Context
The NCP4589DMX28TCG implements a CMOS-based pass transistor architecture with integrated fold-back current limiting and internal reference regulation. Its tri-mode operation is governed by real-time load monitoring: automatic transition between low-power mode (1.0 µA IQ) and fast-response mode (55 µA IGND) occurs at IOUTL = 1–2 mA (light-to-heavy) and IOUTH = 8.0 mA (heavy-to-light), with AE pin enabling forced fast mode independent of load.
It features a dedicated Auto Eco (AE) pin for manual mode control and Chip Enable (CE) pin with 0.4 V/1.0 V logic thresholds, supporting system-level power sequencing. The device maintains stability with ≥1 µF ceramic output capacitors and achieves 70 dB PSRR at 1 kHz only in fast mode, while low-power mode prioritizes ultra-low supply current over transient response.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.8 V with ±1% accuracy at TJ = 25°C, enabling precise biasing of image sensors and RF front-ends. |
| Max Output Current | 300 mA continuous, supporting moderate-power analog/digital subsystems without external boost circuitry. |
| Dropout Voltage | 230 mV typical at 300 mA and 2.8 V output, allowing operation from 3.03 V input - critical for single-cell Li-ion or Li-poly systems. |
| Quiescent Current | 1.0 µA in low-power mode (VOUT ≤ 1.85 V), 55 µA in fast mode, and 0.1 µA in standby - optimized for always-on sensor nodes. |
| PSRR | 70 dB at 1 kHz in fast mode, suppressing switching noise from upstream DC-DC converters in mixed-signal applications. |
| Operating Input Range | 1.4 V to 5.25 V, accommodating wide-input battery chemistries including NiMH, LiFePO₄, and regulated 3.3 V/5 V rails. |
| Thermal Resistance | RJA = 250 °C/W (XDFN package), requiring minimal PCB copper area for thermal management in space-constrained modules. |
Pinout & Package
Package: XDFN6 (1.2 mm × 1.2 mm × 0.4 mm, case 711AA), ultra-thin leadless package with wettable flanks for automated optical inspection and high-density layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input supply connection | Accepts 1.4–5.25 V input; requires local 1 µF ceramic decoupling placed adjacent to pin for line transient immunity. |
| GND | Power ground reference | Common return path for VIN, VOUT, CE, and AE; must be low-impedance plane to minimize noise coupling. |
| CE | Chip enable control | Active-high logic input (VCEH = 1.0 V min); internal pull-down enables default ON operation when tied to VIN. |
| VOUT | Regulated output | Delivers stable 2.8 V; connects to 1 µF ceramic capacitor near pin to ensure loop stability and load transient response. |
| AE | Auto Eco mode select | Logic-controlled mode selector: low = auto eco (low-IQ), high = forced fast mode (high PSRR/transient response). |
| NC | No connection | Internally unconnected terminal; must remain floating - no routing or soldering required. |
Key Features
| Feature | Design Value |
|---|---|
| Tri-mode dynamic operation | Automatically optimizes IQ vs. transient response: switches between 1.0 µA low-power and 55 µA fast mode based on real-time load current thresholds (1–2 mA / 8 mA). |
| Ceramic capacitor stability | Stable with ≥1 µF X5R/X7R ceramic output capacitor - eliminates need for higher-ESR tantalum, reducing BOM cost and board area. |
| Fold-back current protection | Prevents thermal runaway during short-circuit: output voltage and current collapse progressively rather than sustaining fault current. |
| Ultra-thin XDFN package | 1.2 × 1.2 × 0.4 mm footprint enables integration into slim camera modules and wearable sensors where height is constrained to <0.5 mm. |
| Auto-discharge function (D version) | Integrated VOUT-to-GND discharge transistor activates during shutdown, rapidly draining output capacitance to meet system-level power sequencing timing requirements. |
Applications
| Image Sensor Power Supply | Portable Medical Imaging |
|---|---|
Use Scenario: Powering CMOS image sensors in smartphone rear cameras requiring clean, low-noise 2.8 V bias under variable illumination conditions. IC Role / Device Role / Timing Role: Primary LDO delivering regulated 2.8 V to sensor analog core and I/O interface, with AE pin synchronized to frame capture timing to optimize IQ during idle periods. Use Value: Tri-mode operation reduces average system IQ by >95% during sensor standby, extending battery life without compromising startup latency or image quality during active capture. | Use Scenario: Supplying low-power ultrasound transducer arrays in handheld diagnostic devices where EMI-sensitive analog front-ends coexist with digital processors. IC Role / Device Role / Timing Role: Noise-suppressing LDO for analog signal chain, leveraging 70 dB PSRR in fast mode during echo acquisition and dropping to 1.0 µA IQ during data processing intervals. Use Value: Enables simultaneous low-noise analog performance and extended runtime - critical for FDA-cleared portable diagnostics meeting strict battery-life specifications. |
| Wearable Biometric Monitoring | Industrial IoT Edge Node |
Use Scenario: Powering optical heart-rate monitors (PPG) in fitness trackers with tight height constraints (<0.5 mm) and multi-day battery life targets. IC Role / Device Role / Timing Role: Compact 2.8 V regulator for LED driver and photodiode amplifier, using XDFN package to meet mechanical envelope and AE pin to gate fast mode only during pulse measurement bursts. Use Value: 1.2 × 1.2 mm XDFN footprint allows placement directly beneath optical sensor stack; sub-µA standby current extends charge cycle duration beyond 7 days. | Use Scenario: Providing stable 2.8 V rail to LoRaWAN or NB-IoT modem ICs in battery-operated smart metering endpoints deployed in remote locations. IC Role / Device Role / Timing Role: System power manager that enters 0.1 µA standby during deep sleep (CE = low) and transitions to fast mode only during radio transmission bursts. Use Value: Combines ultra-low standby current with rapid wake-up capability (<10 µs), ensuring reliable wireless reporting while achieving >10-year battery life on primary lithium cells. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO voltage regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1826-2802E/DB | Fixed 2.8 V, 300 mA, 200 mV dropout, 50 µA IQ (no tri-mode), SOT-23-5 package | Lacks auto eco/fast mode switching; simpler control but higher static current in light-load scenarios | Select when design prioritizes lowest possible BOM count and does not require dynamic IQ optimization. |
| TPL7407LADGNR | 2.8 V, 300 mA, 250 mV dropout, 2.5 µA IQ (low-power only), MSOP-8 package | Single-mode ultra-low-IQ regulator; no fast mode or PSRR specification - optimized purely for standby efficiency | Select when system operates almost exclusively at microamp loads and transient response is non-critical. |
Compared with MCP1826-2802E/DB and TPL7407LADGNR, the NCP4589DMX28TCG uniquely balances ultra-low IQ (1.0 µA), high PSRR (70 dB), and dynamic mode switching - making it optimal for battery-powered imaging and sensing systems requiring both long idle life and responsive active performance.
Availability
NCP4589DMX28TCG is available at Aetrix Electronics and suitable for portable medical imaging, wearable biometric monitoring, industrial IoT edge nodes, and camera module designs requiring stable component supply with consistent parametric performance across production lots.
Supply support for NCP4589DMX28TCG 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 intelligent power systems.
The NCP4589DMX28TCG belongs to onsemi's precision low-dropout regulator product line, engineered specifically for space-constrained, battery-powered imaging and sensing applications demanding dynamic power optimization and ultra-thin packaging.
FAQ
What is the output voltage tolerance of the NCP4589DMX28TCG over temperature?
The NCP4589DMX28TCG provides ±1% output voltage accuracy at TJ = 25°C for VOUT > 2 V. Over the full operating temperature range (−40°C to +85°C), the output voltage variation is ±2.5% (±25 mV for 2.8 V nominal), as specified in the Electrical Characteristics table under "Output Voltage" test conditions at TA = −40°C to 85°C.
Does the NCP4589DMX28TCG require an external resistor network to set output voltage?
No, the NCP4589DMX28TCG is a fixed-output LDO with factory-trimmed 2.8 V regulation. It does not support adjustable output via external feedback resistors. The output voltage is internally set and verified during production test; no external components are needed to configure VOUT.
How does the AE pin affect the NCP4589DMX28TCG's quiescent current and transient response?
When the AE pin is pulled low (≤0.4 V), the NCP4589DMX28TCG operates in auto-eco mode, automatically switching between 1.0 µA low-power and 55 µA fast mode based on load current. When AE is pulled high (≥1.0 V), it forces permanent fast mode - maintaining 55 µA IQ and full 70 dB PSRR regardless of load, optimizing transient response at the cost of higher static current.
Can the NCP4589DMX28TCG be used with a 10 µF ceramic output capacitor?
Yes, the NCP4589DMX28TCG is stable with ceramic output capacitors ≥1 µF, including 10 µF X5R/X7R types. Larger values improve load transient response and reduce output ripple, but must be placed as close as possible to VOUT and GND pins. Avoid parallel combinations of multiple ceramics, which may cause instability per the Application Information section.
What is the maximum allowable input voltage for the NCP4589DMX28TCG?
The absolute maximum input voltage rating for the NCP4589DMX28TCG is 6.0 V, as stated in the Absolute Maximum Ratings table. However, the recommended operating input voltage 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 parametric performance or reliability.
NCP4589DMX28TCG 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):
- 2.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.35V @ 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)
NCP4589DMX28TCG FAQ
1.How can I place an order for NCP4589DMX28TCG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP4589DMX28TCG 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 NCP4589DMX28TCG reliable?
The price and inventory of NCP4589DMX28TCG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP4589DMX28TCG is usually 5 days.
3.What payment methods are accepted for NCP4589DMX28TCG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP4589DMX28TCG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP4589DMX28TCG?
NCP4589DMX28TCG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP4589DMX28TCG 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 NCP4589DMX28TCG?
For technical support, including NCP4589DMX28TCG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP4589DMX28TCG requirements.
6.How does Aetrix verify that NCP4589DMX28TCG is sourced from the original manufacturer or authorized distributors?
All NCP4589DMX28TCG 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 NCP4589DMX28TCG meets industry standards.
7.What is the process for return or replacement of NCP4589DMX28TCG?
All NCP4589DMX28TCG units undergo pre-shipment inspection (PSI). If there is an issue with NCP4589DMX28TCG, 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 NCP4589DMX28TCG part is unused and in its original packaging.
Return procedure for NCP4589DMX28TCG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NCP4589DMX28TCG Tags
-
MIC5504-1.8YM5-TR
Microchip Technology
-
MIC5504-3.3YM5-TR
Microchip Technology
-
MIC5365-3.0YC5-TR
Microchip Technology
-
MIC5365-1.8YC5-TR
Microchip Technology
-
MIC5365-2.5YC5-TR
Microchip Technology
-
MIC5365-3.3YC5-TR
Microchip Technology
-
MIC5365-3.3YD5-TR
Microchip Technology
-
MIC5317-3.3YM5-TR
Microchip Technology
-
TLV1117LV33DCYR
Texas Instruments
-
MIC5317-3.3YMT-TZ
Microchip Technology
-
MIC5528-3.3YMT-TR
Microchip Technology
-
TLV75801PDRVR
Texas Instruments
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
