My Inquiry
My Account
onsemi NCP717CMX320TCG
- Part No.:
- NCP717CMX320TCG
- Manufacturer:
- onsemi
- Package:
- 4-XDFN Exposed Pad
- Datasheet:
-
NCP717CMX320TCG.pdf
- Description:
- IC REG LINEAR 3.2V 300MA 4XDFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,397
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
NCP717CMX320TCG from onsemi is a 300 mA, fixed 3.2 V output low-dropout (LDO) regulator with 25 µA typical quiescent current, 22 µVRMS output noise (100 Hz–100 kHz), and 165 mV typical dropout at 300 mA - designed for space-constrained, battery-powered portable electronics requiring stable, low-noise voltage regulation.
For engineers reviewing the NCP717CMX320TCG datasheet, pinout, applications, or equivalent options, key selection criteria include its XDFN4 1.0×1.0 mm package, active output discharge (120 Ω), ±2% output accuracy over load/line/temperature, and compatibility with 1 µF ceramic output capacitors.
Technical Context
The NCP717CMX320TCG integrates a PMOS pass transistor with adaptive ground current control to maintain ultra-low IQ across input voltage and temperature. Its internal bandgap reference and error amplifier deliver tight regulation under dynamic load conditions.
It features logic-level enable (EN) with 0.4 V low-threshold shutdown and 0.9 V high-threshold activation, plus built-in thermal shutdown (160°C) and current limiting (379 mA typ). The C-version includes active output discharge via a 120 Ω internal FET to rapidly pull VOUT to GND during disable.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.2 V ±2% over −40°C to +125°C, load 0–300 mA, line 3.7–5.5 V |
| Quiescent Current | 25 µA typical at no-load; enables multi-year battery life in always-on IoT sensors |
| Dropout Voltage | 165 mV typical at 300 mA; supports operation down to VIN = 3.365 V while maintaining regulation |
| Output Noise | 22 µVRMS (100 Hz–100 kHz); suitable for RF power amplifiers and precision ADC references |
| PSRR | 70 dB at 1 kHz; suppresses switching noise from upstream DC-DC converters |
| Enable Threshold | VEN_HI = 0.9 V, VEN_LO = 0.4 V; compatible with 1.8 V and 3.3 V GPIOs without level-shifting |
| Active Discharge | 120 Ω internal path (C-version only); discharges 1 µF output cap in <1 ms after shutdown |
Pinout & Package
XDFN4 1.0 × 1.0 mm, 0.65 mm pitch, exposed pad (EPAD) thermally connected to GND. RoHS-compliant, Pb-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT | Regulated output | Delivers stable 3.2 V; requires ≥1 µF ceramic capacitor to GND for stability |
| 2 - GND | Power ground | Reference node for regulation; EPAD must be soldered to large PCB ground plane for thermal performance |
| 3 - EN | Enable control | Logic input: >0.9 V enables regulator; <0.4 V disables and activates 120 Ω discharge path |
| 4 - IN | Input supply | Accepts 1.8–5.5 V; requires ≥1 µF ceramic capacitor close to pin for transient immunity |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low IQ with dynamic adjustment | Maintains 25 µA no-load current across full temperature range and input voltage (1.8–5.5 V) |
| Low-noise regulation | 22 µVRMS noise enables clean power for RF transceivers and high-resolution analog circuits |
| Stable with minimal capacitance | Guaranteed stability with 1 µF ceramic output capacitor - reduces BOM count and board area |
| Integrated active output discharge | 120 Ω internal discharge path (C-version) prevents floating outputs and ensures fast power-down sequencing |
| Fully protected operation | Thermal shutdown (160°C), current limit (379 mA), and short-circuit robustness eliminate need for external protection |
Applications
| Smartphone Baseband Power | Wearable Sensor Hub |
|---|---|
Use Scenario: Powers baseband processor core voltage in LTE/5G smartphones where standby current and noise directly impact battery life and signal integrity. IC Role / Device Role / Timing Role: Primary 3.2 V LDO for application processor I/O or modem subsystem requiring tight regulation and fast transient response. Use Value: 25 µA IQ extends standby time; 22 µVRMS noise avoids desensitizing adjacent RF receivers. | Use Scenario: Supplies 3.2 V to MEMS inertial sensors and ultra-low-power microcontrollers in fitness trackers and hearables. IC Role / Device Role / Timing Role: Always-on rail for sensor fusion algorithms, enabling wake-on-motion with sub-µA system sleep current. Use Value: Active discharge (120 Ω) clears residual charge before deep-sleep entry, preventing false wake events. |
| Bluetooth Audio SoC Core | Portable Medical Glucose Monitor |
Use Scenario: Provides clean 3.2 V bias to Bluetooth LE audio SoCs (e.g., CSR8675, DA14585) during streaming and advertising states. IC Role / Device Role / Timing Role: Low-noise post-regulator downstream of buck converter, filtering switcher ripple before sensitive DAC and RF stages. Use Value: 70 dB PSRR at 1 kHz attenuates 1 MHz–10 MHz switching harmonics; 165 mV dropout allows use with single-cell Li-ion (3.4 V min). | Use Scenario: Powers electrochemical glucose sensor interface and 16-bit ADC in handheld diagnostic devices operating from coin-cell batteries. IC Role / Device Role / Timing Role: Precision analog rail delivering stable 3.2 V for reference and signal chain, immune to battery voltage sag. Use Value: ±2% accuracy over temperature ensures consistent calibration; 1 µF stability enables miniaturized 0402 capacitor layout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6210B322MR-G | 300 mA, 3.2 V fixed, 25 µA IQ, but no active discharge; SOT-25 package (2.9 × 2.8 mm) | Lacks output discharge; larger footprint; lower thermal performance (RJA ≈ 280°C/W vs. 250°C/W) | Select when board space permits larger package and discharge is handled externally. |
| Richtek RT9080-32PU | 300 mA, 3.2 V fixed, 30 µA IQ, 25 µVRMS noise, active discharge (200 Ω), same XDFN1010-4 package | Higher IQ (30 µA), slightly higher noise, 200 Ω discharge vs. 120 Ω - slower discharge time | Choose for second-source flexibility with near-identical form, fit, and function in compact designs. |
Compared with XC6210B322MR-G and RT9080-32PU, the NCP717CMX320TCG offers the lowest active discharge resistance (120 Ω), fastest discharge speed, and best thermal resistance in the smallest footprint - critical for wearables and hearing aids where rapid power-state transitions and thermal headroom are constrained.
Availability
NCP717CMX320TCG is available at Aetrix Electronics and suitable for smartphone baseband power, wearable sensor hubs, Bluetooth audio SoC core supplies, portable medical glucose monitors, and other battery-powered applications requiring stable component supply with guaranteed long-term continuity.
Supply support for NCP717CMX320TCG 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 innovation for automotive, industrial, cloud, and IoT applications.
The NCP717 series is part of onsemi's precision analog portfolio, engineered specifically for ultra-low-power, noise-sensitive portable electronics - emphasizing minimal IQ, small footprint, and integrated protection.
FAQ
What is the output voltage tolerance of the NCP717CMX320TCG over temperature and load?
The NCP717CMX320TCG maintains ±2% output voltage accuracy across −40°C to +125°C junction temperature, 0–300 mA load, and input voltage from 3.7 V to 5.5 V. This is verified per Electrical Characteristics table on page 3 of the datasheet, with min/max values specified at temperature extremes.
Does the NCP717CMX320TCG require an external capacitor on the EN pin for noise immunity?
No - the NCP717CMX320TCG includes built-in 56 mV hysteresis and deglitch timing in the EN block, eliminating need for external RC filtering. The internal 180 nA pull-down also ensures reliable default-off behavior when EN is left floating, as confirmed in the Applications Information section (page 13).
Can the NCP717CMX320TCG operate with a 0.47 µF output capacitor?
No - the NCP717CMX320TCG requires a minimum of 1.0 µF ceramic output capacitor for guaranteed stability, as stated in both Features and Applications Information (pages 1 and 13). Using 0.47 µF risks oscillation or poor transient response, especially under load steps.
What is the maximum input voltage rating for the NCP717CMX320TCG?
The absolute maximum input voltage for the NCP717CMX320TCG is 6 V, per Absolute Maximum Ratings (page 2). For continuous operation, the recommended maximum is 5.5 V - exceeding this may cause permanent damage or degraded reliability.
How does the active output discharge function work in the NCP717CMX320TCG?
When EN falls below 0.4 V, the NCP717CMX320TCG disables the pass transistor and turns on an internal 120 Ω discharge FET between OUT and GND. This actively pulls the output voltage to ground within ~1 ms for a 1 µF capacitor, preventing floating nodes and ensuring deterministic power-down sequencing - a feature exclusive to 'C'-suffix variants like NCP717CMX320TCG.
NCP717CMX320TCG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 4-XDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 3.2V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.235V @ 300mA
- Current - Output:
- 300mA
- Current - Quiescent (Iq):
- 35 µA
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 4-XDFN (1x1)
NCP717CMX320TCG FAQ
1.How can I place an order for NCP717CMX320TCG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP717CMX320TCG 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 NCP717CMX320TCG reliable?
The price and inventory of NCP717CMX320TCG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP717CMX320TCG is usually 5 days.
3.What payment methods are accepted for NCP717CMX320TCG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP717CMX320TCG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP717CMX320TCG?
NCP717CMX320TCG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP717CMX320TCG 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 NCP717CMX320TCG?
For technical support, including NCP717CMX320TCG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP717CMX320TCG requirements.
6.How does Aetrix verify that NCP717CMX320TCG is sourced from the original manufacturer or authorized distributors?
All NCP717CMX320TCG 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 NCP717CMX320TCG meets industry standards.
7.What is the process for return or replacement of NCP717CMX320TCG?
All NCP717CMX320TCG units undergo pre-shipment inspection (PSI). If there is an issue with NCP717CMX320TCG, 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 NCP717CMX320TCG part is unused and in its original packaging.
Return procedure for NCP717CMX320TCG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NCP717CMX320TCG 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…
