onsemi NCP717CMX150TCG
- Part No.:
- NCP717CMX150TCG
- Manufacturer:
- onsemi
- Package:
- 4-XDFN Exposed Pad
- Datasheet:
-
NCP717CMX150TCG.pdf
- Description:
- IC REG LINEAR 1.5V 300MA 4XDFN
- Quantity:
- Payment:

- Shipping:

Inventory:3,848
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
NCP717CMX150TCG from onsemi is a 300 mA, fixed 1.5 V output low-dropout (LDO) regulator with ultra-low quiescent current (25 µA typ.), 22 µVRMS output noise (100 Hz–100 kHz), and 175 mV typical dropout at 300 mA. It features active output discharge (120 Ω), thermal shutdown, current limiting, and stable operation with only 1 µF ceramic output capacitance - ideal for space-constrained, battery-powered portable electronics requiring clean, precise voltage regulation.
For engineers reviewing the NCP717CMX150TCG datasheet, pinout, applications, or equivalent options, key selection criteria include its 1.5 V fixed output, XDFN4 1.0×1.0 mm package, EN-controlled enable/disable with active discharge, ±2% output accuracy over load/line/temperature, and suitability for noise-sensitive RF and medical subsystems where low IQ and high PSRR (70 dB @ 1 kHz) are critical.
Technical Context
The NCP717CMX150TCG employs a PMOS pass transistor architecture enabling reverse-current blocking and low dropout performance across its 1.8–5.5 V input range. Its adaptive quiescent current circuitry dynamically reduces ground current to 25 µA at no-load while maintaining regulation, optimizing battery life in standby modes.
It integrates an internal bandgap reference, error amplifier, MOSFET driver with current limit, thermal shutdown logic, and an enable-controlled active discharge path (120 Ω) - confirmed exclusive to "C"-suffix variants like NCP717CMX150TCG per datasheet Section "PIN FUNCTION DESCRIPTION" and "APPLICATIONS INFORMATION".
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5 V ±2% over load/line/temperature - ensures stable core or I/O rail for low-voltage microcontrollers and sensors. |
| Max Output Current | 300 mA continuous - supports moderate-power peripherals such as Bluetooth transceivers or display drivers without external heatsinking. |
| Quiescent Current | 25 µA typical at no-load - extends battery runtime in always-on wearable or IoT edge nodes. |
| Dropout Voltage | 175 mV typical at 300 mA - enables operation down to ~1.675 V input, compatible with single-cell Li-ion or Li-poly discharged states. |
| Output Noise | 22 µVRMS (100 Hz–100 kHz) - meets stringent noise requirements for RF front-ends, ADC references, and precision analog signal chains. |
| PSRR | 70 dB at 1 kHz - suppresses switching regulator ripple and digital supply noise before sensitive analog stages. |
| Enable Threshold | VEN_HI = 0.9 V, VEN_LO = 0.4 V - compatible with standard GPIO logic levels and provides 56 mV hysteresis to reject EN pin noise. |
| Active Discharge | 120 Ω pull-down (C-version only) - rapidly discharges output during shutdown, preventing floating voltages in multi-rail systems. |
Pinout & Package
XDFN4 1.0 × 1.0 mm, 0.65 mm pitch, exposed pad (EPAD) thermally connected to GND - optimized for minimal PCB area and efficient heat dissipation in dense portable layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT | Regulated output | Delivers stable 1.5 V; requires ≥1 µF ceramic capacitor to GND for stability and transient response. |
| 2 - GND | Power ground | Main return path; EPAD must be soldered directly to large GND copper plane for thermal and electrical integrity. |
| 3 - EN | Enable control input | Logic-high (>0.9 V) enables regulator; logic-low (<0.4 V) disables it and activates 120 Ω output discharge. |
| 4 - IN | Input supply | Accepts 1.8–5.5 V; requires ≥1 µF ceramic capacitor close to pin to suppress input ripple and EMI. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low IQ | 25 µA typ. at no-load - enables >1-year battery life in coin-cell-powered sensors with periodic wake-up. |
| Low-noise regulation | 22 µVRMS output noise - eliminates need for post-LDO filtering in audio codec or RF synthesizer power rails. |
| Active output discharge | 120 Ω internal pull-down (C-version only) - prevents unintended biasing of downstream circuitry during power sequencing. |
| Stable with small capacitors | Guaranteed stability with 1 µF ceramic COUT - reduces BOM count and board space vs. legacy LDOs requiring 10–22 µF tantalum. |
| Robust protection suite | Thermal shutdown (160°C), current limit (379 mA typ.), and short-circuit immunity - eliminates need for external fault management in consumer designs. |
Applications
| Wireless Handset Power Rail | Portable Medical Sensor Node |
|---|---|
Use Scenario: Powers baseband processor I/O and RF transceiver bias rails in compact cellular handsets. IC Role / Device Role / Timing Role: Primary 1.5 V LDO delivering clean, low-noise supply to noise-sensitive RF sections and digital interfaces. Use Value: 22 µVRMS noise and 70 dB PSRR prevent RX desensitization and maintain EVM compliance under dynamic load conditions. | Use Scenario: Supplies analog front-end (AFE) and low-power MCU in handheld ECG or pulse oximeter units. IC Role / Device Role / Timing Role: Precision 1.5 V reference rail for ADCs and op-amps, with ultra-low IQ extending single AAA battery life beyond 6 months. Use Value: ±2% output accuracy and <10 µV/mA load regulation ensure consistent sensor measurement fidelity across battery discharge. |
| Bluetooth® LE Module Core Supply | Smart Wearable Display Backlight Driver Bias |
Use Scenario: Provides regulated 1.5 V to Bluetooth Low Energy SoC cores and radio PHY in hearables and trackers. IC Role / Device Role / Timing Role: Always-on LDO supporting deep-sleep mode with 25 µA IQ, enabling fast wake-up without voltage settling delay. Use Value: Internal soft-start and monotonic ramp-up prevent brown-out resets during BLE connection bursts. | Use Scenario: Generates stable 1.5 V bias for white LED driver ICs in OLED/LCD smartwatch displays. IC Role / Device Role / Timing Role: Low-noise, low-dropout supply decoupling switching noise from display driver ICs and touch controller. Use Value: 175 mV dropout allows operation from partially discharged 2.0 V coin cell, maximizing usable battery capacity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-1502E/TT | 250 mA max output, 1.8–6.0 V input, 4 µA IQ, no active discharge, SOT-23-5 package | Lacks active discharge and has lower current rating; suitable only for non-sequencing, low-IQ applications | Select when ultra-low IQ dominates over output current and discharge requirements. |
| Torex XC6210B152MR-G | 300 mA, 1.8–6.0 V input, 35 µA IQ, 25 µVRMS noise, SOT-25 package, no active discharge | Higher IQ and no discharge function; slightly larger footprint than XDFN4 | Choose if board layout permits SOT-25 and active discharge is not required for system-level power sequencing. |
Compared with MCP1700T-1502E/TT and XC6210B152MR-G, the NCP717CMX150TCG uniquely combines 300 mA capability, 25 µA IQ, 22 µVRMS noise, and 120 Ω active discharge in a 1.0×1.0 mm XDFN4 package - making it optimal for miniaturized, multi-rail portable systems demanding tight power sequencing and long battery life.
Availability
NCP717CMX150TCG is available at Aetrix Electronics and suitable for wireless handsets, portable medical sensors, Bluetooth LE modules, and smart wearables requiring stable component supply, guaranteed Pb-free compliance, and full traceability through production lifecycles.
Supply support for NCP717CMX150TCG 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 edge applications.
The NCP717 series is designed specifically for ultra-low-power, noise-sensitive portable electronics - emphasizing minimal quiescent current, high PSRR, and compact packaging for next-generation wearables, IoT endpoints, and medical devices.
FAQ
What is the output voltage tolerance of the NCP717CMX150TCG over temperature and load?
The NCP717CMX150TCG maintains ±2% output voltage accuracy across −40°C to +125°C junction temperature, full 0–300 mA load range, and input voltage from VOUT(nom)+0.5 V to 5.5 V. This is verified in the Electrical Characteristics table (page 3) and confirmed by output voltage vs. temperature plots (Figures 1–5) showing ≤30 mV deviation for 1.5 V output under worst-case conditions.
Does the NCP717CMX150TCG support active output discharge, and how does it work?
Yes - the "C" suffix in NCP717CMX150TCG explicitly denotes active output discharge functionality. When EN is driven below 0.4 V, an internal 120 Ω transistor pulls OUT to GND, discharging external capacitance rapidly. This behavior is documented in the PIN FUNCTION DESCRIPTION section (page 2) and APPLICATIONS INFORMATION (page 13), distinguishing it from "A" (1.2 kΩ) and "B" (no discharge) variants.
What is the minimum output capacitor required for stability with the NCP717CMX150TCG?
The NCP717CMX150TCG is stable with a minimum 1.0 µF ceramic (X5R/X7R) output capacitor, as stated in the Features list (page 1) and APPLICATIONS INFORMATION (page 13). The datasheet confirms stability down to 100 nF effective capacitance, but 1.0 µF is the recommended minimum for full transient and PSRR performance across temperature and voltage ranges.
Can the NCP717CMX150TCG operate from a 1.8 V input supply?
Yes - the NCP717CMX150TCG operates from 1.8 V to 5.5 V input, as specified in the Absolute Maximum Ratings and Electrical Characteristics tables (pages 2–3). At 1.8 V input and 1.5 V output, the dropout margin is 300 mV, well above the 175 mV typical dropout at 300 mA, ensuring reliable regulation even at light loads.
What thermal protection features does the NCP717CMX150TCG include?
The NCP717CMX150TCG incorporates thermal shutdown at 160°C (typ.) with 20°C hysteresis, disabling the regulator until junction temperature falls below ~140°C. This is documented in the Electrical Characteristics table (page 3) and APPLICATIONS INFORMATION (page 13), providing fail-safe protection against sustained overload or inadequate PCB copper area.
NCP717CMX150TCG 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):
- 1.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- 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)
NCP717CMX150TCG FAQ
1.How can I place an order for NCP717CMX150TCG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP717CMX150TCG 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 NCP717CMX150TCG reliable?
The price and inventory of NCP717CMX150TCG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP717CMX150TCG is usually 5 days.
3.What payment methods are accepted for NCP717CMX150TCG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP717CMX150TCG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP717CMX150TCG?
NCP717CMX150TCG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP717CMX150TCG 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 NCP717CMX150TCG?
For technical support, including NCP717CMX150TCG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP717CMX150TCG requirements.
6.How does Aetrix verify that NCP717CMX150TCG is sourced from the original manufacturer or authorized distributors?
All NCP717CMX150TCG 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 NCP717CMX150TCG meets industry standards.
7.What is the process for return or replacement of NCP717CMX150TCG?
All NCP717CMX150TCG units undergo pre-shipment inspection (PSI). If there is an issue with NCP717CMX150TCG, 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 NCP717CMX150TCG part is unused and in its original packaging.
Return procedure for NCP717CMX150TCG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NCP717CMX150TCG 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…

