My Inquiry
My Account
onsemi NCP103AMX220TCG
- Part No.:
- NCP103AMX220TCG
- Manufacturer:
- onsemi
- Package:
- 4-UDFN Exposed Pad
- Datasheet:
-
NCP103AMX220TCG.pdf
- Description:
- IC REG LINEAR 2.2V 150MA 4UDFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,120
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
NCP103AMX220TCG from onsemi is a 150 mA CMOS low-dropout linear regulator with fixed 2.2 V output, designed for space-constrained, noise-sensitive battery-powered systems. It delivers ±1% output accuracy at room temperature, 75 mV typical dropout at 150 mA, and 75 dB PSRR at 1 kHz - enabling stable power delivery in portable medical devices, GPS modules, and Bluetooth/Wi-Fi handsets.
For engineers reviewing the NCP103AMX220TCG datasheet, pinout, applications, or equivalent options, key selection criteria include active output discharge capability (enabled in "A"-suffix variants), ultra-low 50 µA quiescent current at no-load, thermal shutdown protection, and stability with only 1 µF ceramic output capacitor in the uDFN4 1.0×1.0 mm package.
Technical Context
The NCP103AMX220TCG employs a PMOS pass transistor architecture with dynamic quiescent current adjustment to minimize IQ across load conditions. Its internal bandgap reference and error amplifier enable precise regulation under line/load transients, while integrated thermal shutdown (160°C trip) and current limiting (550 mA typ.) ensure robust operation during fault events.
Unlike standard LDOs, this variant includes an active output discharge function activated during shutdown (EN < 0.4 V), pulling VOUT to GND via a 100 Ω internal resistor. The EN pin features a 0.9 V turn-on threshold and 0.4 V turn-off threshold, with 300 nA internal pull-down to guarantee default-off behavior when unconnected.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.2 V ±1% at room temperature - ensures consistent biasing for RF front-ends and precision analog sensors without external feedback. |
| Max Output Current | 150 mA continuous - sufficient for powering single-core microcontrollers, BLE SoCs, or low-power ADCs in compact wearables. |
| Dropout Voltage | 75 mV typical at 150 mA (VOUT = 2.2 V) - enables operation down to VIN = 2.275 V, extending battery runtime in single-cell Li-ion or alkaline systems. |
| Quiescent Current | 50 µA typical at no-load - critical for maintaining >1-year shelf life in always-on IoT sensors and remote monitors. |
| PSRR | 75 dB at 1 kHz - suppresses switching noise from adjacent DC-DC converters, preserving signal integrity in audio and RF signal chains. |
| Stability | Guaranteed with ≥1 µF X5R/X7R ceramic output capacitor - eliminates need for tantalum or electrolytic caps, reducing board area and cost. |
| Enable Threshold | 0.9 V high / 0.4 V low - compatible with 1.8 V and 3.3 V GPIOs without level-shifting, simplifying host MCU interface design. |
Pinout & Package
Package: uDFN4 1.0×1.0 mm, 0.65 mm pitch, exposed pad (Case 517CU). Requires solder connection of EPAD to GND plane for thermal performance (RJA = 170°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT | Regulated output voltage node | Connect ≥1 µF ceramic cap directly to GND; output discharge path active during shutdown (100 Ω to GND). |
| 2 - GND | Power ground reference | Primary return path for load current and IC bias; EPAD must be soldered to same GND plane for thermal relief. |
| 3 - EN | Enable control input | Logic-high (>0.9 V) enables regulation; logic-low (<0.4 V) disables output and activates discharge; internal 300 nA pull-down ensures safe default-off state. |
| 4 - IN | Input voltage supply | Accepts 1.7–5.5 V; requires ≥1 µF ceramic decoupling close to pin to suppress trace inductance during load transients. |
Key Features
| Feature | Design Value |
|---|---|
| Active Output Discharge | 100 Ω internal discharge path engages automatically during shutdown (EN < 0.4 V), preventing floating outputs in multi-rail systems. |
| Ultra-Low Quiescent Current | 50 µA typical at zero load - reduces standby power loss by >90% vs. legacy LDOs, enabling multi-year battery life in coin-cell applications. |
| High PSRR at Low Frequencies | 75 dB @ 1 kHz - mitigates ripple from buck converter switching frequencies, eliminating need for additional LC filtering in sensitive analog stages. |
| Thermal Shutdown Protection | 160°C trip with 20°C hysteresis - prevents permanent damage during sustained overload or poor PCB heatsinking without requiring external circuitry. |
| Stable with Minimal Capacitance | Works with 1 µF ceramic output cap (X5R/X7R) - avoids costly, bulky tantalum capacitors and simplifies layout in 0402/0603 footprints. |
Applications
| Portable Medical Sensors | Bluetooth LE Wearables |
|---|---|
|
Use Scenario: Powering ECG front-end amplifiers and 16-bit ADCs in patch-style cardiac monitors. IC Role / Device Role / Timing Role: Provides ultra-low-noise 2.2 V bias with <60 µVrms output noise (10 Hz–100 kHz), ensuring sub-µV signal fidelity. Use Value: Eliminates need for post-regulation RC filtering, reducing BOM count and PCB area while meeting IEC 60601-1 leakage current limits. |
Use Scenario: Supplying 2.2 V to Nordic nRF52832 BLE SoC RF section and sensor interface peripherals. IC Role / Device Role / Timing Role: Delivers fast load transient response (<30 mV deviation) during BLE packet transmission bursts (150 mA peak). Use Value: Maintains RF output power stability and receiver sensitivity without degrading link budget or increasing packet error rate. |
| GPS/GLONASS Tracking Modules | Smart Home Sensor Nodes |
|
Use Scenario: Regulating power to u-blox MAX-M8Q GNSS receivers operating from single-cell Li-ion (3.0–4.2 V). IC Role / Device Role / Timing Role: Supplies 2.2 V with 75 mV dropout, enabling continuous operation down to 2.275 V battery voltage. Use Value: Extends time-to-empty by >12% compared to 2.5 V LDOs, supporting longer location logging intervals in asset trackers. |
Use Scenario: Powering TI CC2652R multiprotocol SoC and Bosch BME280 environmental sensors in battery-operated thermostats. IC Role / Device Role / Timing Role: Provides 2.2 V with 50 µA quiescent current and active discharge, enabling rapid system reset after wake-up from deep sleep. Use Value: Reduces average system current to <1 µA in sleep mode, achieving >5-year battery life on two AA cells. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-2202E/MB | No active output discharge; 2.5 µA IQ (lower than NCP103AMX220TCG's 50 µA); 250 mV dropout at 250 mA. | Suitable for ultra-low-IQ applications where output discharge is unnecessary (e.g., simple microcontroller rails). | Select when minimizing standby current is primary goal and discharge is not required for system sequencing. |
| Torex XC6206P222MR-G | 200 mA output; no EN pin; 1 µA IQ; 350 mV dropout at 100 mA; no thermal shutdown. | Better for cost-sensitive, non-critical applications without enable control or fault protection (e.g., LED backlight bias). | Choose only if EN functionality, thermal protection, and active discharge are not needed - not drop-in compatible. |
Compared with MCP1700T-2202E/MB and XC6206P222MR-G, the NCP103AMX220TCG uniquely combines active output discharge, 150 mA current capability with low dropout, and full fault protection - making it optimal for sequenced, safety-aware portable electronics where controlled power-down is mandatory.
Availability
NCP103AMX220TCG is available at Aetrix Electronics and suitable for portable medical sensors, Bluetooth LE wearables, and GPS tracking modules requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for NCP103AMX220TCG 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 NCP103 series was developed specifically for ultra-low-power, noise-sensitive portable electronics - emphasizing minimal quiescent current, high PSRR, and small-footprint packaging for space-constrained designs.
FAQ
What is the output voltage tolerance of the NCP103AMX220TCG over temperature?
The NCP103AMX220TCG maintains ±1% output voltage accuracy at room temperature (25°C). Over the full operating junction temperature range (−40°C to +85°C), output voltage drift is specified as ±40 mV for VOUT ≤ 2.0 V - and since the NCP103AMX220TCG is a 2.2 V part, its tolerance remains within ±2% across temperature per the datasheet's "VOUT > 2.0 V" row in Electrical Characteristics.
Does the NCP103AMX220TCG require an input capacitor, and what value is recommended?
Yes, the NCP103AMX220TCG requires an input capacitor. The datasheet recommends at least a 1 µF ceramic (X5R or X7R) capacitor placed as close as possible to the IN pin. This minimizes AC noise coupling and limits voltage spikes caused by trace inductance during fast load transients - critical for stable operation in noisy switcher-based power systems.
How does the active output discharge function work in the NCP103AMX220TCG?
In the NCP103AMX220TCG, when the EN pin voltage drops below 0.4 V, the regulator shuts down and an internal 100 Ω discharge transistor connects the OUT pin to GND. This actively pulls the output voltage to ground within milliseconds, preventing unintended back-powering of upstream circuits or latch-up in multi-rail systems - a feature absent in "B"-suffix variants like NCP103BMX220TCG.
Can the NCP103AMX220TCG operate with a 1.7 V input voltage while delivering 2.2 V output?
No - the NCP103AMX220TCG cannot regulate 2.2 V output from a 1.7 V input. Its minimum input voltage is 1.7 V, but the dropout voltage at 150 mA is 75 mV (typical), meaning VIN must be ≥ VOUT + VDO = 2.275 V to maintain regulation. At 1.7 V input, the device enters dropout and output collapses; it is rated for inputs up to 5.5 V.
Is the NCP103AMX220TCG RoHS compliant and lead-free?
Yes, the NCP103AMX220TCG is RoHS compliant and Pb-free, as confirmed in the onsemi datasheet (page 1) and ordering information (page 13). It uses halogen-free/BFR-free materials and is packaged in a uDFN4 1.0×1.0 mm lead-free package (suffix "G" denotes Pb-free).
NCP103AMX220TCG 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):
- 2.2V
- 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)
NCP103AMX220TCG FAQ
1.How can I place an order for NCP103AMX220TCG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP103AMX220TCG 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 NCP103AMX220TCG reliable?
The price and inventory of NCP103AMX220TCG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP103AMX220TCG is usually 5 days.
3.What payment methods are accepted for NCP103AMX220TCG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP103AMX220TCG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP103AMX220TCG?
NCP103AMX220TCG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP103AMX220TCG 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 NCP103AMX220TCG?
For technical support, including NCP103AMX220TCG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP103AMX220TCG requirements.
6.How does Aetrix verify that NCP103AMX220TCG is sourced from the original manufacturer or authorized distributors?
All NCP103AMX220TCG 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 NCP103AMX220TCG meets industry standards.
7.What is the process for return or replacement of NCP103AMX220TCG?
All NCP103AMX220TCG units undergo pre-shipment inspection (PSI). If there is an issue with NCP103AMX220TCG, 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 NCP103AMX220TCG part is unused and in its original packaging.
Return procedure for NCP103AMX220TCG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NCP103AMX220TCG 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…
