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onsemi NCP103AMX160TCG
- Part No.:
- NCP103AMX160TCG
- Manufacturer:
- onsemi
- Package:
- 4-UDFN Exposed Pad
- Datasheet:
-
NCP103AMX160TCG.pdf
- Description:
- IC REG LINEAR 1.6V 150MA 4UDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,055
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Product details
Overview
NCP103AMX160TCG from onsemi is a 150 mA CMOS low-dropout (LDO) regulator with fixed 1.6 V output, active output discharge function, ±1% output voltage accuracy at room temperature, 75 mV typical dropout at 150 mA (VOUT = 3.1 V), and stable operation with only 1 µF ceramic output capacitor - designed for noise-sensitive, space-constrained battery-powered applications such as GPS modules and Bluetooth handsets.
For engineers reviewing the NCP103AMX160TCG datasheet, pinout, applications, or equivalent options, key selection criteria include its ultra-low quiescent current (50 µA typ.), enable-controlled shutdown (<0.1 µA standby), high PSRR (75 dB @ 1 kHz), thermal shutdown (160°C), and uDFN4 1.0×1.0 mm package with exposed pad for thermal management.
Technical Context
The NCP103AMX160TCG employs a PMOS pass transistor architecture enabling low dropout and inherent reverse-current protection, combined with dynamic quiescent current adjustment to minimize IQ across load conditions. Its internal bandgap reference and error amplifier deliver tight regulation under varying line/load/temperature conditions.
It integrates enable logic with hysteresis (VEN_HI = 0.9 V, VEN_LO = 0.4 V), active output discharge via a 100 Ω internal NMOS switch (enabled only in "A"-suffix variants), and robust protection including current limiting (550 mA typ.) and thermal shutdown with 20°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.6 V ±1% at +25°C; ensures precise biasing for 1.6 V–1.8 V core logic or RF ICs without external feedback. |
| Max Output Current | 150 mA continuous; supports moderate-power peripherals like GPS baseband ICs or BLE SoCs. |
| Dropout Voltage | 120 mV typical at 150 mA (VOUT = 1.6 V); enables operation down to VIN = 1.72 V, extending battery runtime in single-cell Li-ion/Li-poly systems. |
| Quiescent Current | 50 µA typical at no load; critical for always-on subsystems where µA-level leakage determines shelf life. |
| PSRR | 75 dB @ 1 kHz; suppresses switching noise from adjacent DC-DC converters feeding noisy supply rails. |
| Stability | Guaranteed with ≥1 µF X5R/X7R ceramic output capacitor; eliminates need for tantalum or large bulk caps, saving board area. |
| Enable Threshold | VEN_HI = 0.9 V, VEN_LO = 0.4 V; compatible with 1.8 V GPIOs and provides noise margin against digital switching transients. |
Pinout & Package
Package: uDFN4 1.0 × 1.0 mm, 0.65 mm pitch, exposed thermal pad (Case 517CU). Requires solder connection of EPAD to PCB ground plane for thermal performance (RJA = 170°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT | Regulated output voltage node | Connect ≥1 µF ceramic capacitor directly to GND; output impedance <100 mΩ up to 100 kHz ensures clean power for RF/analog circuits. |
| 2 - GND | Power ground reference | Return path for load current and internal bias; must be low-impedance; ties to EPAD for thermal conduction. |
| 3 - EN | Enable control input | Logic-high (>0.9 V) enables regulation; logic-low (<0.4 V) disables LDO and activates 100 Ω active discharge to clear VOUT. |
| 4 - IN | Input voltage supply | Accepts 1.7–5.5 V; requires local 1 µF ceramic decoupling to suppress high-frequency noise and transient currents. |
| EPAD | Exposed thermal pad | Must be soldered to solid GND copper pour; primary thermal path - failure to connect degrades RJA by >50%. |
Key Features
| Feature | Design Value |
|---|---|
| Active Output Discharge | 100 Ω internal NMOS discharges VOUT to GND in shutdown - prevents floating outputs and cross-conduction in multi-rail systems. |
| Ultra-Low IQ Tracking | Dynamic quiescent current adjustment maintains ~50 µA IQ from 0–150 mA load - extends battery life in intermittent wake/sleep cycles. |
| High PSRR at 1 kHz | 75 dB rejection of ripple from upstream switching regulators - avoids additional LC filtering for sensitive analog/RF blocks. |
| Thermal Shutdown w/ Hysteresis | Triggers at 160°C, resets at 140°C - protects against sustained overload or poor heatsinking without oscillation. |
| Stable with Small Ceramic Cap | No ESR requirement; works with 0402/0603 1 µF X7R capacitors - reduces BOM count and PCB footprint vs. legacy LDOs needing 10–22 µF. |
Applications
| GPS Module Power Supply | Bluetooth Audio Transceiver |
|---|---|
|
Use Scenario: Powers GNSS baseband processor and RF front-end in compact wearable GPS trackers. IC Role / Device Role / Timing Role: Primary 1.6 V LDO delivering clean, low-noise supply to GPS correlator and ADC clock domains. Use Value: 60 µVRMS output noise and 75 dB PSRR prevent timing jitter degradation in 1.22 MHz GPS correlation clocks. |
Use Scenario: Supplies 1.6 V core voltage to dual-mode Bluetooth 5.0 SoC during streaming and advertising states. IC Role / Device Role / Timing Role: Enables fast enable/disable cycling synchronized with BLE connection intervals to minimize system IQ. Use Value: 50 µA typical IQ and 0.1 µA shutdown current extend coin-cell battery life beyond 12 months in beacon mode. |
| Portable Medical Sensor Hub | Smartphone Subsystem Rail |
|
Use Scenario: Regulates power for ultra-low-power ECG analog front-end and SAR ADC in handheld diagnostic devices. IC Role / Device Role / Timing Role: Provides precision 1.6 V reference rail with ±1% accuracy over −40°C to +85°C for calibrated measurements. Use Value: Load regulation of ≤30 mV from 1–150 mA ensures consistent ADC LSB size across sensor gain ranges. |
Use Scenario: Generates auxiliary 1.6 V rail for camera ISP or display interface logic in multi-rail smartphone PMIC architectures. IC Role / Device Role / Timing Role: Standalone LDO co-located near load to avoid IR drop and noise coupling from main PMIC. Use Value: uDFN4 1.0×1.0 mm footprint fits in tight spaces between camera module and flex connector; EPAD enables 1.2 W dissipation at 25°C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-1602E/MB | 150 mA, 1.6 V fixed, 6 µA IQ, no active discharge, SOT-23-5 package (2.9×2.8 mm) | Larger footprint, lower IQ, but lacks output discharge - unsuitable for systems requiring rapid VOUT decay. | Select when ultra-low IQ dominates over board area and discharge is unnecessary. |
| Torex XC6210B162MR-G | 150 mA, 1.6 V fixed, 25 µA IQ, 120 mV dropout, SOT-25 package, no active discharge | Similar performance envelope but no EN-controlled discharge; requires external circuitry for safe power sequencing. | Prefer for cost-sensitive designs where active discharge is handled externally or omitted. |
Compared with MCP1700T-1602E/MB and XC6210B162MR-G, the NCP103AMX160TCG uniquely combines sub-100 mV dropout, integrated active discharge, and 1.0×1.0 mm uDFN4 - making it optimal for miniaturized, fast-sequencing portable electronics where board area and controlled power-down are critical.
Availability
NCP103AMX160TCG is available at Aetrix Electronics and suitable for GPS receivers, Bluetooth audio modules, portable medical sensors, and smartphone subsystem rails requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for NCP103AMX160TCG 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, high-performance silicon solutions for automotive, industrial, cloud, and IoT markets.
The NCP103AMX160TCG belongs to onsemi's precision LDO family engineered for ultra-low-power, noise-sensitive portable applications - emphasizing minimal IQ, high PSRR, small footprint, and integrated protection for battery-operated edge devices.
FAQ
What is the output voltage tolerance of the NCP103AMX160TCG over temperature?
The NCP103AMX160TCG maintains ±1% output voltage accuracy at room temperature (+25°C). Over the full operating junction temperature range (−40°C to +85°C), output voltage deviation is specified as ±40 mV for VOUT ≤ 2.0 V - which corresponds to ±2.5% for the 1.6 V nominal output. This ensures reliable operation for 1.6 V logic and analog circuits across industrial environments.
Does the NCP103AMX160TCG require an input capacitor, and what value is recommended?
Yes, the NCP103AMX160TCG requires a minimum 1 µF ceramic (X5R or X7R) capacitor placed as close as possible to the IN pin. This capacitor stabilizes the input rail during load transients and filters high-frequency noise. Larger values may be needed for applications with fast, high-amplitude load steps - but the device remains stable with the 1 µF minimum across its 1.7–5.5 V input range.
How does the active output discharge function work in the NCP103AMX160TCG?
When the EN pin is driven below 0.4 V, the NCP103AMX160TCG disables regulation and activates an internal 100 Ω NMOS transistor between OUT and GND. This actively pulls the output voltage to ground within microseconds, preventing floating nodes and ensuring safe power-down sequencing in multi-rail systems - a feature absent in non-"A" suffix variants like NCP103BMX160TCG.
Can the NCP103AMX160TCG operate with a 1.5 V input supply?
No - the NCP103AMX160TCG has a minimum input voltage of 1.7 V per its Absolute Maximum Ratings and Electrical Characteristics. At 1.5 V input, the device cannot maintain regulation at 1.6 V output due to insufficient headroom; dropout voltage is 120 mV typical at 150 mA, requiring ≥1.72 V input. Operation below 1.7 V risks undefined behavior or shutdown.
What thermal derating applies to the NCP103AMX160TCG in a standard 1 oz FR-4 PCB layout?
On a standard 1 oz FR-4 PCB with 645 mm² copper area, the NCP103AMX160TCG has a junction-to-ambient thermal resistance (RJA) of 170°C/W. At 25°C ambient, maximum continuous power dissipation is ~0.74 W before reaching the 150°C max junction temperature. For 150 mA load at 1.6 V output and 2.5 V input, power dissipation is (2.5 − 1.6) V × 0.15 A = 135 mW - well within safe limits without additional heatsinking.
NCP103AMX160TCG 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):
- 1.6V
- 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)
NCP103AMX160TCG FAQ
1.How can I place an order for NCP103AMX160TCG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP103AMX160TCG 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 NCP103AMX160TCG reliable?
The price and inventory of NCP103AMX160TCG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP103AMX160TCG is usually 5 days.
3.What payment methods are accepted for NCP103AMX160TCG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP103AMX160TCG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP103AMX160TCG?
NCP103AMX160TCG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP103AMX160TCG 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 NCP103AMX160TCG?
For technical support, including NCP103AMX160TCG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP103AMX160TCG requirements.
6.How does Aetrix verify that NCP103AMX160TCG is sourced from the original manufacturer or authorized distributors?
All NCP103AMX160TCG 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 NCP103AMX160TCG meets industry standards.
7.What is the process for return or replacement of NCP103AMX160TCG?
All NCP103AMX160TCG units undergo pre-shipment inspection (PSI). If there is an issue with NCP103AMX160TCG, 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 NCP103AMX160TCG part is unused and in its original packaging.
Return procedure for NCP103AMX160TCG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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