My Inquiry
My Account
onsemi NCP4589DMX33TCG
- Part No.:
- NCP4589DMX33TCG
- Manufacturer:
- onsemi
- Package:
- 6-XFDFN
- Datasheet:
-
NCP4589DMX33TCG.pdf
- Description:
- IC REG LINEAR 3.3V 300MA 6XDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,314
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
NCP4589DMX33TCG from onsemi is a 300 mA tri-mode CMOS LDO voltage regulator with fixed 3.3 V output, ultra-low quiescent current (1.0 µA in low-power mode), 230 mV dropout at 300 mA, and ±1% output accuracy. It operates from 1.4 V to 5.25 V input and is designed for power-sensitive portable imaging systems requiring fast transient response and automatic eco-mode switching.
For engineers reviewing the NCP4589DMX33TCG datasheet, pinout, applications, or equivalent options, key selection criteria include tri-mode current consumption (1.0 µA / 55 µA / 0.1 µA), XDFN-6 package thermal performance (RJA = 250 °C/W), 70 dB PSRR at 1 kHz, and auto-eco/fast mode transition thresholds (IOUTL = 1.0–2.0 mA, IOUTH = 8.0 mA).
Technical Context
The NCP4589DMX33TCG implements a CMOS-based LDO architecture with dual operational modes controlled by the AE pin: Auto Eco mode (ultra-low IQ) and Fast mode (high PSRR, rapid load transient response). Its internal N-channel pass transistor enables low dropout and stable operation with 1 µF ceramic output capacitors.
Mode switching is fully autonomous-transitioning to Fast mode when load exceeds 8 mA and reverting to Auto Eco below 2 mA-while the CE pin provides external enable/disable control. The device includes fold-back current limiting and an integrated output discharger for fast shutdown discharge in D-version variants like this one.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3 V ±1% (at VOUT > 2 V, TJ = 25 °C) |
| Max Output Current | 300 mA continuous; supports peak loads without thermal shutdown under typical PCB layout |
| Dropout Voltage | 230 mV typical at 300 mA, enabling regulation from 3.53 V input down to 3.3 V output |
| Quiescent Current | 1.0 µA (low-power mode, VOUT ≤ 1.85 V); 55 µA (fast mode); 0.1 µA (standby) |
| PSRR | 70 dB at 1 kHz in Fast mode-critical for noise-sensitive analog/RF subsystems |
| Operating Input Range | 1.4 V to 5.25 V-compatible with single-cell Li-ion, Li-poly, and multi-cell alkaline/battery stacks |
| Thermal Resistance | RJA = 250 °C/W (XDFN-6 package)-requires minimal copper area for 300 mA full-load operation |
Pinout & Package
XDFN-6 package: 1.2 mm × 1.2 mm × 0.4 mm ultra-thin footprint with wettable flanks; thermally enhanced exposed pad (pin 5) connected to GND for optimal heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 4) | Input supply connection | Accepts 1.4–5.25 V; requires local 1 µF ceramic decoupling capacitor |
| GND (Pin 2) | Ground reference and thermal path | Shared return for all circuitry; connects to exposed thermal pad (Pin 5) |
| CE (Pin 3) | Chip enable control | Active-high logic input; internal pull-down allows direct tie-to-VIN for always-on operation |
| VOUT (Pin 6) | Regulated output | Delivers stable 3.3 V; supports 1 µF ceramic output capacitor for stability |
| AE (Pin 1) | Auto Eco mode select | Low = Auto Eco (1.0 µA IQ); high = forced Fast mode (55 µA IQ, 70 dB PSRR) |
| NC (Pin 5) | No connection | Exposed thermal pad-must be soldered to GND plane for thermal performance |
Key Features
| Feature | Design Value |
|---|---|
| Tri-mode operation | Automatically switches between ultra-low-IQ (1.0 µA), high-PSRR (70 dB), and zero-IQ standby (0.1 µA) based on real-time load demand |
| Stable with 1 µF ceramic output cap | Eliminates need for larger, higher-ESR tantalum capacitors-reducing BOM cost and board space |
| Integrated output discharger | Actively pulls VOUT to GND during disable, preventing hold-up voltage that could delay system reset or cause latch-up |
| ±1% output accuracy | Ensures reliable logic-level compliance for 3.3 V I/O interfaces across −40 °C to +85 °C ambient |
| Current fold-back protection | Prevents thermal runaway during short-circuit events by reducing output current as voltage collapses |
Applications
| Portable Image Sensors | Low-Power IoT Edge Nodes |
|---|---|
Use Scenario: Powering CMOS image sensors in battery-operated security cameras with intermittent capture duty cycles. IC Role / Device Role / Timing Role: Primary 3.3 V supply for sensor analog front-end and digital interface; regulates from single-cell Li-ion (3.0–4.2 V). Use Value: Tri-mode operation reduces average system IQ by >95% during idle periods while maintaining <10 µs load transient recovery when capture triggers. | Use Scenario: Supplying microcontroller, BLE radio, and environmental sensors in coin-cell–powered asset trackers. IC Role / Device Role / Timing Role: Main system LDO delivering regulated 3.3 V to mixed-signal SoC during active sensing bursts and deep-sleep states. Use Value: 1.0 µA quiescent current extends 220 mAh coin-cell life to >5 years in 1-minute wake-up intervals. |
| Wearable Health Monitors | Industrial Handheld Scanners |
Use Scenario: Powering optical heart-rate monitoring (PPG) modules with strict EMI and ripple requirements. IC Role / Device Role / Timing Role: Low-noise 3.3 V rail for photodiode amplifier and ADC; rejects switching noise from nearby DC-DC converters. Use Value: 70 dB PSRR at 1 kHz suppresses 2 MHz DC-DC ripple harmonics, reducing ADC quantization error by 8 bits. | Use Scenario: Regulating power for laser diode drivers and barcode decode processors in rugged handheld scanners. IC Role / Device Role / Timing Role: High-current-capable LDO supporting 300 mA pulsed laser drive while maintaining tight 3.3 V tolerance. Use Value: 230 mV dropout enables full 300 mA output even as battery voltage drops to 3.53 V-extending usable runtime per charge cycle. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1804T-3302I/OT | Fixed 3.3 V, 150 mA max, 3.5 µA IQ, no auto-tri-mode; SOT-23-5 package | Limited to lower-current peripherals; lacks fast transient response and eco-mode automation | Select when cost sensitivity outweighs current capability and dynamic efficiency needs |
| TZB73330020000 | 3.3 V, 300 mA, 2.5 µA IQ, no AE pin or tri-mode; XDFN-6, same footprint but no mode control | Requires external logic to toggle between low-IQ and high-performance states | Choose only if board layout must retain identical XDFN-6 placement but mode control is handled externally |
Compared with MCP1804T-3302I/OT and TZB73330020000, the NCP4589DMX33TCG uniquely delivers 300 mA output with sub-µA eco-mode IQ and autonomous fast/eco switching-enabling longer battery life and faster wake-up response without firmware or external control overhead.
Availability
NCP4589DMX33TCG is available at Aetrix Electronics and suitable for portable imaging systems, wearable health monitors, industrial handheld scanners, and low-power IoT edge nodes requiring stable component supply with guaranteed long-term manufacturability.
Supply support for NCP4589DMX33TCG 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 series belongs to onsemi's precision low-dropout regulator product line, engineered specifically for battery-powered portable equipment where adaptive power efficiency and small-footprint thermal performance are critical design constraints.
FAQ
What is the maximum output current capability of the NCP4589DMX33TCG?
The NCP4589DMX33TCG delivers up to 300 mA continuous output current under typical thermal conditions (TA ≤ 85 °C, 1-in² 2-oz copper). Its 230 mV dropout at 300 mA and 250 °C/W junction-to-air thermal resistance allow sustained operation without thermal shutdown when properly mounted on a standard PCB with GND-connected thermal pad.
How does the AE pin function on the NCP4589DMX33TCG?
The AE (Auto Eco) pin on the NCP4589DMX33TCG controls operational mode: pulled low (≤0.4 V), it enables automatic tri-mode switching between low-power and fast-response states based on load current; pulled high (≥1.0 V), it forces permanent Fast mode. This pin directly configures the internal bias network-no external resistor or logic is required for basic mode selection.
Is the NCP4589DMX33TCG compatible with ceramic output capacitors?
Yes-the NCP4589DMX33TCG is explicitly designed and characterized for stable operation with 1 µF ceramic output capacitors, as confirmed in the datasheet's APPLICATION INFORMATION section. Using larger values or parallel ceramics may degrade phase margin; tantalum capacitors are discouraged due to ESR-related instability risks.
What is the purpose of the NC pin (Pin 5) in the XDFN-6 package of the NCP4589DMX33TCG?
Pin 5 of the NCP4589DMX33TCG is the exposed thermal pad, designated "NC" (No Connection) electrically but required to be soldered to a GND plane for thermal conduction. It is not a signal pin-its sole function is mechanical attachment and heat dissipation, reducing RJA from 250 °C/W to ~120 °C/W with adequate copper area.
Does the NCP4589DMX33TCG include output discharge functionality?
Yes-the NCP4589DMX33TCG is the "D" version of the family and integrates an active output discharge transistor between VOUT and GND. When the CE pin is driven low, this transistor turns on to rapidly discharge the output capacitor, preventing residual voltage from interfering with downstream logic sequencing or causing unintended wake-up events.
NCP4589DMX33TCG 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):
- 3.3V
- 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)
NCP4589DMX33TCG FAQ
1.How can I place an order for NCP4589DMX33TCG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP4589DMX33TCG 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 NCP4589DMX33TCG reliable?
The price and inventory of NCP4589DMX33TCG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP4589DMX33TCG is usually 5 days.
3.What payment methods are accepted for NCP4589DMX33TCG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP4589DMX33TCG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP4589DMX33TCG?
NCP4589DMX33TCG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP4589DMX33TCG 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 NCP4589DMX33TCG?
For technical support, including NCP4589DMX33TCG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP4589DMX33TCG requirements.
6.How does Aetrix verify that NCP4589DMX33TCG is sourced from the original manufacturer or authorized distributors?
All NCP4589DMX33TCG 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 NCP4589DMX33TCG meets industry standards.
7.What is the process for return or replacement of NCP4589DMX33TCG?
All NCP4589DMX33TCG units undergo pre-shipment inspection (PSI). If there is an issue with NCP4589DMX33TCG, 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 NCP4589DMX33TCG part is unused and in its original packaging.
Return procedure for NCP4589DMX33TCG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NCP4589DMX33TCG 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…
