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onsemi NCP103AMX260TCG
- Part No.:
- NCP103AMX260TCG
- Manufacturer:
- onsemi
- Package:
- 4-UDFN Exposed Pad
- Datasheet:
-
NCP103AMX260TCG.pdf
- Description:
- IC REG LINEAR 2.6V 150MA 4UDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,659
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Product details
Overview
NCP103AMX260TCG from onsemi is a 150 mA CMOS low-dropout (LDO) regulator with fixed 2.6 V output, active output discharge function, and ultra-low quiescent current (50 µA typ.)-designed for space-constrained, noise-sensitive battery-powered systems such as GPS modules and portable medical devices.
For engineers reviewing the NCP103AMX260TCG datasheet, pinout, applications, or equivalent options, key selection criteria include dropout voltage at full load (70 mV typ. at 150 mA), ±1% output accuracy over −40°C to +85°C, PSRR of 75 dB at 1 kHz, and stable operation with only 1 µF ceramic output capacitor.
Technical Context
The NCP103AMX260TCG employs a PMOS pass transistor architecture enabling low dropout and inherent reverse-current protection. Its dynamic quiescent current adjustment reduces IQ to 50 µA at no-load while maintaining regulation under 150 mA load.
It integrates thermal shutdown (160°C trip), current limiting (550 mA typ.), and an enable-controlled active output discharge path (100 Ω typical) - features confirmed for the "A" variant per datasheet Section 1 (PIN FUNCTION DESCRIPTION) and Table on page 3 (ELECTRICAL CHARACTERISTICS).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.6 V ±1% at room temperature; ensures stable power rail for 2.6 V–biased analog sensors or RF front-ends. |
| Max Output Current | 150 mA continuous; sufficient for powering single-core microcontrollers or BLE transceivers in portable designs. |
| Dropout Voltage | 70 mV typical at 150 mA (VOUT = 2.6 V); enables regulation down to VIN = 2.67 V, extending battery runtime in Li-ion or coin-cell applications. |
| Quiescent Current | 50 µA typical at no load; critical for multi-year operation in always-on IoT edge nodes. |
| PSRR | 75 dB at 1 kHz; suppresses switching noise from adjacent DC-DC converters feeding the LDO input. |
| Output Capacitor | Stable with ≥1 µF X5R/X7R ceramic; eliminates need for tantalum or large electrolytics, reducing board area and cost. |
| Enable Threshold | VEN_HI = 0.9 V, VEN_LO = 0.4 V; compatible with 1.8 V/3.3 V GPIOs without level-shifting. |
Pinout & Package
Package: uDFN4 1.0 × 1.0 mm, 0.65 mm pitch, exposed pad (Case 517CU). Thermal resistance RJA = 170 °C/W on 1 oz FR-4 with 645 mm² copper area.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: OUT | Regulated output | Connects to load; requires ≥1 µF ceramic capacitor to GND for stability and transient response. |
| 2: GND | Power ground | Reference for all internal circuitry; must be tied directly to PCB ground plane and exposed pad. |
| 3: EN | Enable control input | Logic-high (>0.9 V) enables regulation; logic-low (<0.4 V) disables regulator and activates 100 Ω output discharge path. |
| 4: IN | Input supply | Accepts 1.7–5.5 V; requires local 1 µF ceramic capacitor to suppress high-frequency noise and trace inductance effects. |
| EPAD | Exposed thermal pad | Must be soldered to GND plane for thermal relief; improves power dissipation capability and long-term reliability. |
Key Features
| Feature | Design Value |
|---|---|
| Active output discharge | 100 Ω typical pull-down when disabled-ensures rapid, controlled VOUT decay to prevent latch-up in downstream logic. |
| Ultra-low IQ | 50 µA typical at zero load-enables >10-year battery life in energy-harvesting or coin-cell-powered sensors. |
| High PSRR | 75 dB @ 1 kHz-rejects ripple from noisy switchers, eliminating need for additional LC filtering stages. |
| Thermal & current protection | 160°C shutdown with 20°C hysteresis and 550 mA current limit-guarantees safe operation under overload or ambient extremes. |
| Small footprint | 1.0 × 1.0 mm uDFN4 package-fits within tight spacing constraints of wearable and hearable form factors. |
Applications
| GPS Module Power Supply | Wireless Sensor Node Core Rail |
|---|---|
|
Use Scenario: Powers GNSS receiver IC (e.g., u-blox NEO-M8) requiring clean, stable 2.6 V from a 3.0–4.2 V Li-ion cell. IC Role / Device Role / Timing Role: Primary LDO delivering regulated bias to RF frontend and baseband processor. Use Value: 75 dB PSRR prevents GPS signal desensitization from switching noise; 70 mV dropout extends usable battery range by ~150 mV. |
Use Scenario: Supplies 2.6 V to ultra-low-power MCU (e.g., Silicon Labs EFM32) and sub-GHz transceiver in battery-operated environmental sensor. IC Role / Device Role / Timing Role: System-level power manager enabling deep-sleep mode with 50 µA quiescent draw. Use Value: Active discharge clears VOUT within milliseconds after shutdown, preventing back-powering of MCU I/O pins during reset sequences. |
| Portable Medical Pulse Oximeter | Bluetooth LE Audio Earbud Bias |
|
Use Scenario: Provides precision 2.6 V rail to analog front-end (AFE) and optical driver in Class II medical-grade pulse oximeter. IC Role / Device Role / Timing Role: Low-noise analog supply generator with <60 µVRMS output noise (10 Hz–100 kHz). Use Value: ±1% output accuracy ensures consistent LED current calibration across temperature; 1 µF stability simplifies layout in compact PCBs. |
Use Scenario: Powers DSP and Bluetooth radio in true wireless stereo (TWS) earbuds operating from 3.7 V Li-Po cells. IC Role / Device Role / Timing Role: Secondary LDO isolating noise-sensitive audio codec from digital switching domains. Use Value: uDFN4 footprint saves >0.5 mm² vs. SOT-23; 170 °C/W thermal resistance allows full 150 mA load without derating in sealed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-2602E/TT | No active output discharge; higher dropout (115 mV @ 250 mA); 2.5 µA IQ. | Suitable for simpler always-on sensors where fast VOUT decay is unnecessary. | Choose if lowest possible standby current outweighs need for discharge control. |
| Torex XC6206P262MR-G | Fixed 2.6 V; no EN pin; 1 µA IQ; 300 mA max; 350 mV dropout @ 100 mA. | Used in cost-sensitive consumer wearables where enable control and low dropout are secondary. | Choose for non-enabling, ultra-low-IQ applications with relaxed dropout and no sequencing requirements. |
Compared with MCP1700T-2602E/TT and XC6206P262MR-G, the NCP103AMX260TCG uniquely combines active discharge, 70 mV dropout, and 50 µA IQ in a 1.0×1.0 mm package-making it optimal for sequenced, space-constrained, battery-critical systems requiring both low noise and controlled power-down behavior.
Availability
NCP103AMX260TCG is available at Aetrix Electronics and suitable for GPS modules, portable medical equipment, wireless sensor nodes, and Bluetooth LE audio devices requiring stable component supply with guaranteed long-term manufacturability.
Supply support for NCP103AMX260TCG 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 focused on energy-efficient innovation for automotive, industrial, cloud, and IoT applications.
The NCP103AMX260TCG belongs to onsemi's precision analog LDO family, engineered specifically for ultra-low-power, noise-sensitive portable electronics where battery life, small size, and robust protection are mandatory design requirements.
FAQ
What is the output voltage tolerance of the NCP103AMX260TCG over temperature?
The NCP103AMX260TCG maintains ±1% output voltage accuracy across −40°C to +85°C junction temperature. This is verified in the Electrical Characteristics table (page 3 of datasheet), where VOUT error is specified as ±2% for VOUT > 2.0 V-equivalent to ±26 mV for the 2.6 V nominal output. The tighter ±1% spec applies at room temperature, with worst-case drift bounded within the ±2% limit over full operating range.
Does the NCP103AMX260TCG require an external resistor to enable the active output discharge function?
No. The active output discharge function is intrinsic to the NCP103AMX260TCG "A" variant and activates automatically when the EN pin voltage falls below 0.4 V. No external components are needed-the internal 100 Ω discharge path connects OUT to GND during shutdown, as confirmed in the PIN FUNCTION DESCRIPTION (page 2) and Electrical Characteristics table (RDIS = 100 Ω typ., page 3).
Can the NCP103AMX260TCG operate with input voltages below 1.7 V?
No. The absolute minimum input voltage is 1.7 V, as stated in the Absolute Maximum Ratings (page 2) and Operating Input Voltage specification (page 3). Operation below 1.7 V may result in loss of regulation, increased dropout, or undefined behavior. For sub-1.7 V inputs, a different LDO or buck-boost solution is required.
Is the NCP103AMX260TCG RoHS compliant and halogen-free?
Yes. The NCP103AMX260TCG is explicitly marked Pb-Free, Halogen Free/BFR Free, and RoHS compliant in the Features section (page 1) and Ordering Information table (page 13). It meets EU RoHS Directive 2011/65/EU and JEDEC J-STD-609A standard for halogen content.
What is the maximum allowable output capacitor ESR for stable operation of the NCP103AMX260TCG?
The NCP103AMX260TCG has no minimum ESR requirement but specifies a maximum ESR of 3 Ω for the output capacitor, as noted in the Applications Information section (page 12). Exceeding 3 Ω risks instability or degraded transient response; ceramic capacitors (X5R/X7R) are recommended due to their inherently low ESR.
NCP103AMX260TCG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 4-UDFN 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):
- 2.6V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 95 µA
- Current - Supply (Max):
- -
- PSRR:
- 75dB (1kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 4-UDFN (1.0x1.0)
NCP103AMX260TCG FAQ
1.How can I place an order for NCP103AMX260TCG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP103AMX260TCG 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 NCP103AMX260TCG reliable?
The price and inventory of NCP103AMX260TCG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP103AMX260TCG is usually 5 days.
3.What payment methods are accepted for NCP103AMX260TCG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP103AMX260TCG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP103AMX260TCG?
NCP103AMX260TCG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP103AMX260TCG 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 NCP103AMX260TCG?
For technical support, including NCP103AMX260TCG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP103AMX260TCG requirements.
6.How does Aetrix verify that NCP103AMX260TCG is sourced from the original manufacturer or authorized distributors?
All NCP103AMX260TCG 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 NCP103AMX260TCG meets industry standards.
7.What is the process for return or replacement of NCP103AMX260TCG?
All NCP103AMX260TCG units undergo pre-shipment inspection (PSI). If there is an issue with NCP103AMX260TCG, 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 NCP103AMX260TCG part is unused and in its original packaging.
Return procedure for NCP103AMX260TCG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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