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onsemi NCP115CMX110TCG
- Part No.:
- NCP115CMX110TCG
- Manufacturer:
- onsemi
- Package:
- 4-XDFN Exposed Pad
- Datasheet:
-
NCP115CMX110TCG.pdf
- Description:
- IC REG LINEAR 1.1V 300MA 4XDFN
- Quantity:
- Payment:
- Shipping:
Inventory:132,000
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Product details
Overview
NCP115CMX110TCG from onsemi is a 300 mA low-dropout linear regulator with 1.1 V fixed output, ±1% accuracy at room temperature, 70 dB PSRR at 1 kHz, and 50 µA typical quiescent current - designed for noise-sensitive, space-constrained battery-powered applications such as smartphone baseband processors and camera sensor power rails.
For engineers reviewing the NCP115CMX110TCG datasheet, pinout, applications, or equivalent options, this page delivers verified package mapping (XDFN4), confirmed slow-slew-rate soft-start behavior (20 mV/s), active output discharge (100 Ω), thermal shutdown (160°C), and real-world load regulation performance (30 mV max over 1–300 mA).
Technical Context
The NCP115CMX110TCG implements a PMOS pass transistor architecture with dynamic quiescent current adjustment to maintain ultra-low IQ across load conditions. Its internal bandgap reference and error amplifier deliver tight output regulation under line and load transients, while integrated enable logic controls both regulator activation and active output discharge.
This variant belongs to the "C" version family, featuring slow VOUT slew rate (20 mV/s) and guaranteed active discharge during shutdown - distinct from "A/B" versions with normal slew rate (190 mV/s) and identical discharge capability. It operates across 1.7–5.5 V input and supports stable regulation with only 1 µF ceramic output capacitance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.1 V ±1% at +25°C; maintains stability across −40°C to +85°C junction temperature range. |
| Max Output Current | 300 mA continuous; internal current limit protects up to 600 mA (typ) without external components. |
| Dropout Voltage | 560 mV max at 300 mA and VOUT = 1.1 V (XDFN4 package); enables operation with minimal VIN headroom. |
| PSRR | 70 dB at 1 kHz; suppresses ripple from noisy battery or switching supply inputs in RF/analog subsystems. |
| Quiescent Current | 50 µA typ at no load; drops to 0.01 µA in shutdown, extending battery life in always-on sensor nodes. |
| Soft-Start Slew Rate | 20 mV/s (slow mode); prevents inrush current and voltage overshoot when powering sensitive image sensors. |
| Active Discharge | 100 Ω pull-down on OUT during disable; ensures rapid VOUT decay to GND for sequencing-critical systems. |
Pinout & Package
XDFN4 (Case 711AJ), 1.0 mm × 1.0 mm, 0.65 mm pitch, exposed thermal pad (EPAD) connected to GND. Compact footprint ideal for high-density mobile PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Input voltage supply | Accepts 1.7–5.5 V; requires ≥1 µF ceramic capacitor close to pin for transient immunity and stability. |
| 2 (GND) | Power ground reference | Primary return path; EPAD must be soldered directly to large GND copper plane for thermal management. |
| 3 (EN) | Enable control input | Logic-high (>0.9 V) enables regulation; logic-low (<0.4 V) disables regulator and activates discharge transistor. |
| 4 (OUT) | Regulated output | Delivers stable 1.1 V; requires ≥1 µF X5R/X7R ceramic capacitor to ground for loop stability and transient response. |
Key Features
| Feature | Design Value |
|---|---|
| Dynamic IQ Adjustment | Maintains ~50 µA quiescent current at zero load and scales minimally under 300 mA, optimizing battery runtime. |
| Slow Slew-Rate Soft-Start | 20 mV/s VOUT ramp-up prevents inrush-induced rail collapse in camera modules and audio codecs. |
| Active Output Discharge | 100 Ω internal FET pulls OUT to GND within microseconds of EN deactivation, enabling precise power sequencing. |
| Thermal Shutdown + Hysteresis | Shuts down at 160°C (typ) and re-enables only after cooling to 140°C (20°C hysteresis), preventing thermal oscillation. |
| Stable with Minimal Capacitance | Guaranteed stability with 1 µF ceramic COUT - eliminates need for larger, costly, or less reliable tantalum capacitors. |
Applications
| Smartphone Baseband Power | Camera Sensor Bias Rail |
|---|---|
|
Use Scenario: Powers ARM-based application processor core voltage domain requiring clean, sequenced 1.1 V supply. IC Role / Device Role / Timing Role: Primary LDO delivering regulated 1.1 V with active discharge for controlled power-down during sleep mode transitions. Use Value: 70 dB PSRR rejects noise from shared PMIC switchers; 50 µA IQ extends standby time; slow slew avoids sensor reset glitches. |
Use Scenario: Supplies analog front-end and image signal processor in dual-camera smartphones. IC Role / Device Role / Timing Role: Low-noise bias rail with programmable soft-start timing to prevent image artifacts during wake-up. Use Value: 20 mV/s slew rate eliminates VOUT overshoot; 1.1 V ±1% accuracy ensures consistent ADC reference; 1 µF COUT saves board area. |
| Wearable Heart Rate Monitor | Bluetooth LE Audio Earbud MCU Core |
|
Use Scenario: Powers photodiode amplifier and ADC in optical PPG sensor module. IC Role / Device Role / Timing Role: Ultra-low-noise 1.1 V supply with fast enable/disable for duty-cycled sensing bursts. Use Value: 70 µVrms output noise (10 Hz–100 kHz) preserves signal integrity; 0.01 µA shutdown current minimizes idle drain. |
Use Scenario: Supplies 32-bit BLE SoC core logic operating at 1.1 V in compact earbud PCBs. IC Role / Device Role / Timing Role: Space-optimized LDO with XDFN4 footprint and integrated sequencing via EN pin. Use Value: 1.0 × 1.0 mm package fits under SoC; active discharge ensures safe state before firmware reload; 300 mA headroom supports burst processing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7A0511PDBVR | 200 mA max output; 25 µA IQ; no active discharge; 1.1 V fixed; SOT-23-5 package. | Lacks active discharge and slow slew rate; unsuitable for strict sequencing or camera sensor use. | Select when board space allows SOT-23 and discharge/soft-start features are unnecessary. |
| MCP1700T-1102E/TT | 250 mA max; 1.6 µA IQ; no active discharge; 1.1 V fixed; SOT-23-3 package. | Ultra-low IQ but no enable pin or discharge; limited PSRR (60 dB @ 1 kHz); not suitable for RF/noisy environments. | Prefer for ultra-long-life coin-cell applications where sequencing and noise rejection are secondary. |
Compared with TPS7A0511PDBVR and MCP1700T-1102E/TT, the NCP115CMX110TCG uniquely combines 300 mA drive, active discharge, slow-slew soft-start, and 70 dB PSRR in a 1.0×1.0 mm XDFN4 - making it the only choice for compact, noise-sensitive, and sequenced 1.1 V rails in modern mobile imaging systems.
Availability
NCP115CMX110TCG is available at Aetrix Electronics and suitable for smartphone baseband power, wearable optical sensor biasing, and Bluetooth LE audio SoC core supply requiring stable component supply, long-term lifecycle support, and Pb-free compliance.
Supply support for NCP115CMX110TCG 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 (Semiconductor Components Industries, LLC) is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The NCP115 series was engineered specifically for battery-powered portable electronics - emphasizing ultra-low quiescent current, high PSRR, small-footprint packaging, and robust protection features for next-generation mobile and wearable platforms.
FAQ
What is the output voltage tolerance of the NCP115CMX110TCG over temperature?
The NCP115CMX110TCG maintains ±1% output voltage accuracy at room temperature (+25°C). Over the full operating junction temperature range (−40°C to +85°C), its output voltage deviation is specified as ±40 mV for VOUT ≤ 2.0 V - meaning the 1.1 V output stays within 1.06 V to 1.14 V across temperature. This is confirmed in the Electrical Characteristics table on page 3 of the datasheet under "Output Voltage Accuracy".
Does the NCP115CMX110TCG support active output discharge, and how does it behave?
Yes, the NCP115CMX110TCG supports active output discharge. When the EN pin voltage falls below 0.4 V, the internal 100 Ω discharge FET connects OUT to GND, pulling the output voltage rapidly to ground. This feature is explicitly enabled in all "C" and "A" variants per the datasheet's PIN FUNCTION DESCRIPTION and Figure 2 block diagram. The NCP115CMX110TCG implements this function identically to other "C"-suffix parts.
What is the maximum allowable input voltage for the NCP115CMX110TCG?
The absolute maximum input voltage for the NCP115CMX110TCG is 6 V, as stated in the Absolute Maximum Ratings table (page 2). However, the recommended operating input voltage range is 1.7 V to 5.5 V. Operation above 5.5 V risks permanent damage even if brief, and the device is not characterized or guaranteed beyond that limit.
Can the NCP115CMX110TCG operate stably with less than 1 µF output capacitance?
No - the NCP115CMX110TCG is designed and characterized for stability with a minimum 1 µF ceramic output capacitor (X5R or X7R dielectric). The datasheet states on page 12: "The recommended capacitor value is 1 µF" and confirms stability down to 0.47 µF only when accounting for DC bias and temperature derating of small-case capacitors. Using <0.47 µF risks oscillation or poor transient response.
Is the NCP115CMX110TCG pin-compatible with other NCP115 variants in XDFN4 package?
Yes, all NCP115 variants in the XDFN4 package (including NCP115AMX110TCG and NCP115CMX110TCG) share identical pinout: Pin 1 = IN, Pin 2 = GND, Pin 3 = EN, Pin 4 = OUT. This is confirmed in the "PIN CONNECTIONS" section (page 1) and "PIN FUNCTION DESCRIPTION" table (page 2). Functionality differs only in slew rate and marking - not pin assignment or package outline.
NCP115CMX110TCG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 4-XDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.1V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- Current - Output:
- 300mA
- Current - Quiescent (Iq):
- 95 µA
- Current - Supply (Max):
- -
- PSRR:
- 70dB (1kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 85°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 4-XDFN (1x1)
NCP115CMX110TCG FAQ
1.How can I place an order for NCP115CMX110TCG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP115CMX110TCG 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 NCP115CMX110TCG reliable?
The price and inventory of NCP115CMX110TCG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP115CMX110TCG is usually 5 days.
3.What payment methods are accepted for NCP115CMX110TCG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP115CMX110TCG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP115CMX110TCG?
NCP115CMX110TCG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP115CMX110TCG 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 NCP115CMX110TCG?
For technical support, including NCP115CMX110TCG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP115CMX110TCG requirements.
6.How does Aetrix verify that NCP115CMX110TCG is sourced from the original manufacturer or authorized distributors?
All NCP115CMX110TCG 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 NCP115CMX110TCG meets industry standards.
7.What is the process for return or replacement of NCP115CMX110TCG?
All NCP115CMX110TCG units undergo pre-shipment inspection (PSI). If there is an issue with NCP115CMX110TCG, 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 NCP115CMX110TCG part is unused and in its original packaging.
Return procedure for NCP115CMX110TCG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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