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onsemi NCP752AMX28TCG
- Part No.:
- NCP752AMX28TCG
- Manufacturer:
- onsemi
- Package:
- 6-XFDFN
- Datasheet:
-
NCP752AMX28TCG.pdf
- Description:
- IC REG LINEAR 2.8V 200MA 6XDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,040
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Product details
Overview
NCP752AMX28TCG from onsemi is a 200 mA ultra-low-noise, ultra-low-quiescent-current LDO voltage regulator with fixed 2.8 V output, Power Good (PG) flag, and active output discharge. It operates from 2.0 V to 5.5 V input, delivers ±2% output accuracy over load/line/temperature, achieves 11.5 µVRMS noise (100 Hz–100 kHz), and maintains 130 mV typical dropout at 200 mA - ideal for RF power amplifiers in satellite radios and precision instrumentation.
For engineers reviewing the NCP752AMX28TCG datasheet, pinout, applications, or equivalent options, key selection criteria include its 12 µA quiescent current in auto low-power mode, 68 dB PSRR at 1 kHz, stable operation with 1 µF ceramic output capacitor, open-drain PG threshold at 92–96% VOUT, and thermal shutdown at 160°C.
Technical Context
The NCP752AMX28TCG integrates a PMOS pass transistor with adaptive ground current control to achieve ultra-low IQ, an internal bandgap reference with ±2% accuracy, and a dedicated open-drain Power Good comparator monitoring output regulation. Its Auto Low-Power Function dynamically reduces quiescent current under light load without compromising transient response.
It features internal soft-start to limit inrush current, active output discharge via 1 kΩ pull-down during disable, and comprehensive protection including thermal shutdown (160°C trip, 20°C hysteresis), current limiting (400 mA typ.), and undervoltage lockout (1.2–1.9 V). The device requires no external noise-bypass capacitor to meet ultra-low-noise specs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.8 V ±2% over full load/line/temperature range - ensures stable bias for RF PA stages without external feedback. |
| Max Output Current | 200 mA continuous - sufficient for powering single-channel RF ICs or sensor signal chains in portable devices. |
| Quiescent Current | 12 µA typical at no load - extends battery life in always-on IoT sensors and wearable medical monitors. |
| Output Noise | 11.5 µVRMS (100 Hz–100 kHz) - eliminates need for external RC filtering in noise-sensitive RF supply rails. |
| PSRR | 68 dB at 1 kHz - suppresses switching noise from upstream DC-DC converters feeding the LDO input. |
| Dropout Voltage | 130 mV typical at 200 mA - enables operation from single-cell Li-ion (3.0 V min) while maintaining regulation down to 2.93 V input. |
| Power Good Threshold | 92–96% of VOUT rising/falling - provides reliable system reset signaling with 2% hysteresis to prevent chatter. |
Pinout & Package
Package: XDFN-6 (1.5 mm × 1.5 mm, 0.5 mm pitch, Case 711AE), thermally enhanced with exposed thermal pad soldered to PCB copper plane for effective heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Input voltage supply | Accepts 2.0–5.5 V; requires ≥1 µF ceramic capacitor to GND for stability and EMI suppression. |
| 2 (PG) | Open-drain Power Good output | Asserts low when VOUT is within 92–96% of nominal; must be pulled up externally to enable system monitoring. |
| 3 (GND) | Power ground reference | Connected directly to die via lead frame; soldering thermal pad to PCB plane improves thermal resistance by ~50%. |
| 4 (EN) | Enable control input | Logic-high (>0.9 V) enables regulation; logic-low (<0.4 V) disables output and activates active discharge. |
| 5 (N/C) | No-connect terminal | Internally unconnected; may be tied to GND to improve thermal conduction without electrical impact. |
| 6 (OUT) | Regulated output voltage | Delivers 2.8 V ±2%; stable with 1 µF ceramic capacitor; supports fast load transients up to 200 mA step. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low noise without bypass cap | 11.5 µVRMS noise achieved with internal design - eliminates BOM cost and board space for external RC filter. |
| Auto Low-Power Mode | Reduces IQ to 12 µA at zero load - critical for multi-year battery life in remote sensing nodes. |
| Active output discharge | Pulls OUT to GND via 1 kΩ during disable - ensures fast, controlled turn-off for sequencing-critical systems. |
| Stable with 1 µF ceramic COUT | No minimum ESR requirement - compatible with low-cost, high-reliability X5R/X7R MLCCs across temperature. |
| Thermal shutdown with hysteresis | 160°C trip / 140°C reset - prevents thermal runaway while avoiding oscillation near threshold. |
Applications
| Satellite Radio Power Amplifier Supply | Portable Medical Sensor Bias Rail |
|---|---|
Use Scenario: Clean, stable 2.8 V supply for GaAs-based RF power amplifier in handheld satellite radio receivers. IC Role / Device Role / Timing Role: Primary low-noise post-regulator delivering ultra-clean bias to PA stage, replacing noisy switcher output. Use Value: 11.5 µVRMS noise and 68 dB PSRR prevent AM-to-PM distortion and adjacent channel interference in narrowband RF links. | Use Scenario: Precision analog front-end power for ECG/PPG sensor ASIC in battery-powered wearable health monitor. IC Role / Device Role / Timing Role: Low-drift, low-noise LDO supplying ADC reference and op-amp rails in signal chain. Use Value: ±2% output accuracy and <1 µV/mA load regulation ensure consistent gain and offset calibration across battery discharge cycle. |
| Smartphone RF Transceiver Core Supply | Bluetooth LE Audio Earbud Codec Supply |
Use Scenario: Dedicated 2.8 V rail for LTE/WCDMA transceiver core logic and PLL circuits in multi-band smartphones. IC Role / Device Role / Timing Role: High-PSRR LDO isolating sensitive RF synthesizer from noisy SoC domain supplies. Use Value: 130 mV dropout enables operation from shared 3.3 V PMIC rail while maintaining regulation during 200 mA TX bursts. | Use Scenario: Low-IQ bias supply for Bluetooth LE audio codec and Class-D amplifier in true wireless stereo earbuds. IC Role / Device Role / Timing Role: Always-on LDO supporting ultra-low-power listening mode and fast wake-up response. Use Value: 12 µA quiescent current and 200 µs EN turn-on time enable sub-10 µA system standby and <1 ms audio playback startup. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6210B282MR-G | 200 mA, 2.8 V fixed, 25 µA IQ, no PG output, no active discharge | Lacks Power Good flag and active discharge - unsuitable for sequenced power systems requiring status signaling or fast turn-off. | Select when PG and discharge are unnecessary and lowest possible BOM cost is prioritized. |
| Richtek RT9080-28GB | 300 mA, 2.8 V fixed, 2.5 µA IQ, PG output, no active discharge, 200 mV dropout @ 300 mA | Higher current rating but no active discharge; lower IQ benefits ultra-long-life applications, but lacks fast turn-off capability. | Select when >200 mA headroom is needed and active discharge is not required for system timing. |
Compared with XC6210B282MR-G and RT9080-28GB, the NCP752AMX28TCG uniquely combines ultra-low 12 µA IQ, integrated PG flag with hysteresis, and active output discharge - making it optimal for battery-powered RF systems demanding precise power sequencing, noise immunity, and rapid state transitions.
Availability
NCP752AMX28TCG is available at Aetrix Electronics and suitable for satellite communications equipment, portable medical diagnostics, and Bluetooth LE audio devices requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for NCP752AMX28TCG 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 is a global semiconductor leader delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The NCP752 series is designed specifically for noise-sensitive RF and portable battery-powered systems, emphasizing ultra-low IQ, ultra-low noise, and robust protection - targeting applications where power integrity directly impacts signal fidelity and battery runtime.
FAQ
What is the maximum input voltage rating for the NCP752AMX28TCG?
The NCP752AMX28TCG has an absolute maximum input voltage rating of 6 V. However, its recommended operating input voltage range is 2.0 V to 5.5 V. Operation above 5.5 V risks permanent damage, and sustained operation near 6 V is not advised due to reduced reliability margin and potential thermal stress under load. The device's UVLO circuit activates below 1.2 V to prevent erratic behavior during power-up.
Does the NCP752AMX28TCG require an external noise-bypass capacitor to achieve its specified 11.5 µVRMS output noise?
No, the NCP752AMX28TCG does not require an external noise-bypass capacitor to achieve its specified 11.5 µVRMS output noise (100 Hz–100 kHz). This performance is achieved through internal design optimizations, including low-noise bandgap and PMOS pass transistor architecture. Adding external capacitors beyond the required 1 µF output capacitor provides no measurable noise improvement and may risk instability if ESR exceeds 700 mΩ.
How does the active output discharge function operate in the NCP752AMX28TCG?
When the EN pin voltage falls below 0.4 V, the NCP752AMX28TCG disables the pass transistor and activates an internal 1 kΩ pull-down between OUT and GND. This discharges the output capacitor rapidly, ensuring VOUT falls to near-zero within microseconds - critical for safe power sequencing in multi-rail systems. The discharge path remains active until EN rises above 0.9 V, at which point the pull-down is disabled and regulation resumes.
What is the thermal resistance (RJA) of the NCP752AMX28TCG in its XDFN-6 package?
The NCP752AMX28TCG in the XDFN-6 (Case 711AE) package has a thermal resistance RJA of 149 °C/W when mounted on a standard 1 oz FR-4 PCB with 645 mm² copper area. This value assumes the exposed thermal pad is fully soldered to the PCB ground plane. Without thermal pad connection, RJA degrades significantly - proper layout per onsemi's recommended footprint is essential to maintain thermal performance and avoid derating above 125°C junction temperature.
Can the NCP752AMX28TCG be used with a 0.5 µF output capacitor?
No, the NCP752AMX28TCG is not guaranteed stable with a 0.5 µF output capacitor. The datasheet specifies a minimum effective output capacitance of 500 nF (0.5 µF) only as an absolute lower bound under ideal conditions; the recommended minimum is 1.0 µF ceramic (X5R/X7R) to ensure stability across voltage, temperature, and DC bias variations. Using 0.5 µF risks oscillation or poor transient response, especially at high ambient temperatures or near maximum load.
NCP752AMX28TCG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 6-XFDFN
- 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):
- 2.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- Current - Output:
- 200mA
- Current - Quiescent (Iq):
- 25 µA
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- Enable, Power Good
- Protection Features:
- Over Current, Over Temperature, Under Voltage Lockout (UVLO)
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-XDFN (1.5x1.5)
NCP752AMX28TCG FAQ
1.How can I place an order for NCP752AMX28TCG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP752AMX28TCG 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 NCP752AMX28TCG reliable?
The price and inventory of NCP752AMX28TCG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP752AMX28TCG is usually 5 days.
3.What payment methods are accepted for NCP752AMX28TCG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP752AMX28TCG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP752AMX28TCG?
NCP752AMX28TCG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP752AMX28TCG 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 NCP752AMX28TCG?
For technical support, including NCP752AMX28TCG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP752AMX28TCG requirements.
6.How does Aetrix verify that NCP752AMX28TCG is sourced from the original manufacturer or authorized distributors?
All NCP752AMX28TCG 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 NCP752AMX28TCG meets industry standards.
7.What is the process for return or replacement of NCP752AMX28TCG?
All NCP752AMX28TCG units undergo pre-shipment inspection (PSI). If there is an issue with NCP752AMX28TCG, 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 NCP752AMX28TCG part is unused and in its original packaging.
Return procedure for NCP752AMX28TCG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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