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onsemi NCP752ASN28T1G
- Part No.:
- NCP752ASN28T1G
- Manufacturer:
- onsemi
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
NCP752ASN28T1G.pdf
- Description:
- IC REG LINEAR 2.8V 200MA 5TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,433
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Product details
Overview
NCP752ASN28T1G from onsemi is a 200 mA ultra-low-noise, ultra-low-quiescent-current LDO voltage regulator with fixed 2.8 V output, designed for RF-sensitive power domains in portable electronics. It delivers ±2% output accuracy across load/line/temperature, achieves 11.5 µVRMS noise (100 Hz–100 kHz), and maintains 68 dB PSRR at 1 kHz - enabling clean biasing of power amplifiers in satellite radios and infotainment systems.
For engineers reviewing the NCP752ASN28T1G datasheet, pinout, applications, or equivalent options, key selection criteria include its 12 µA quiescent current in active mode, 130 mV dropout at 200 mA, active output discharge, open-drain Power Good flag, and stability with only a 1 µF ceramic output capacitor - critical for battery-powered medical devices and wireless handsets requiring low EMI and fast turn-off.
Technical Context
The NCP752ASN28T1G employs a PMOS pass transistor architecture with adaptive ground current control to sustain ultra-low IQ (12 µA typ.) across input voltages from 2.0 V to 5.5 V. Its internal bandgap reference and error amplifier deliver tight regulation while supporting dynamic load steps up to 200 mA with <±90 mV transient deviation.
It integrates an enable-controlled auto low-power mode, thermal shutdown (160°C trip), current limiting (~400 mA), and a dedicated open-drain PG output that asserts when VOUT reaches 92–96% of nominal and de-asserts at 90–94%, with 2% hysteresis - enabling precise system power sequencing and fault monitoring in compact layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.8 V ±2% over load/line/temperature - ensures stable core bias for 2.8 V logic rails without external feedback. |
| Max Output Current | 200 mA continuous - sufficient for powering RF front-end ICs, Bluetooth transceivers, or sensor signal chains. |
| Quiescent Current | 12 µA typical at no load - extends battery life in always-on wearable and IoT edge nodes. |
| Noise Performance | 11.5 µVRMS (100 Hz–100 kHz) - eliminates need for external noise-bypass capacitors in sensitive RF supply paths. |
| Dropout Voltage | 130 mV typical at 200 mA - enables operation from single-cell Li-ion (3.0 V min) down to 2.93 V under full load. |
| PSRR | 68 dB at 1 kHz - suppresses switching noise from upstream DC-DC converters feeding the LDO input. |
| Power Good Threshold | 92–96% VOUT rising / 90–94% VOUT falling - provides reliable reset signaling for microcontrollers and baseband processors. |
Pinout & Package
Package: XDFN-6 (1.5 mm × 1.5 mm, 0.5 mm pitch, Case 711AE), thermally enhanced with exposed pad for PCB heat sinking.
| 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 transient immunity. |
| 2 (PG) | Open-drain Power Good output | Pulls low when VOUT drops below 90–94%; requires external pull-up for MCU reset or status monitoring. |
| 3 (GND) | Ground reference and thermal path | Connected to die via lead frame; soldered to large copper pour for effective thermal dissipation (RJA = 149 °C/W). |
| 4 (EN) | Enable control input | Active-high logic: >0.9 V enables regulator; <0.4 V disables it and activates output discharge (1 kΩ path to GND). |
| 5 (N/C) | No-connect terminal | Internally unconnected; may be tied to GND to improve thermal performance 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. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low noise without bypass cap | 11.5 µVRMS noise (100 Hz–100 kHz) - eliminates BOM cost and board space for external RC filters in RF supply rails. |
| Auto low-power mode | 12 µA IQ at zero load - reduces standby power in battery-backed systems like GPS trackers and smart sensors. |
| Active output discharge | 1 kΩ internal discharge path activated during disable - ensures rapid VOUT decay (<1 ms) for safe multi-rail sequencing. |
| Stable with minimal capacitance | Works with 1 µF ceramic COUT (min 500 nF) - simplifies layout and avoids tantalum capacitor reliability risks. |
| Integrated protection | Thermal shutdown (160°C), current limit (~400 mA), and UVLO (1.2–1.9 V) - prevents damage during fault conditions without external circuitry. |
Applications
| Wireless Handset Power Management | Portable Medical Sensor Biasing |
|---|---|
|
Use Scenario: Supplying low-noise bias to 2.8 V RF power amplifiers and transceiver ICs in Bluetooth/Wi-Fi modules. IC Role / Device Role / Timing Role: Primary clean LDO for PA VCC, rejecting noise from shared battery rail and DC-DC converters. Use Value: 68 dB PSRR at 1 kHz and 11.5 µVRMS noise prevent AM-to-PM distortion and EVM degradation in 2.4 GHz transmission. |
Use Scenario: Providing regulated 2.8 V to analog front-ends (AFE) and precision ADCs in handheld ECG or pulse oximeters. IC Role / Device Role / Timing Role: Low-drift, low-noise voltage source for sensor excitation and signal chain reference. Use Value: ±2% accuracy over temperature and 130 mV dropout enable accurate measurements even as Li-ion voltage declines from 4.2 V to 3.0 V. |
| Smartphone Camera Module | GPS Receiver Core Supply |
|
Use Scenario: Powering image sensor ISPs and autofocus drivers requiring stable 2.8 V with fast transient response. IC Role / Device Role / Timing Role: Dedicated LDO for camera subsystem, decoupled from noisy main SoC rail. Use Value: <±90 mV load transient deviation (1 mA ↔ 200 mA) prevents image artifacts during burst capture or flash activation. |
Use Scenario: Delivering ultra-clean 2.8 V to GNSS RF front-ends and baseband processors in automotive and asset-tracking GPS units. IC Role / Device Role / Timing Role: Low-phase-noise supply for LNA and mixer stages in satellite signal reception. Use Value: No external noise-bypass capacitor needed - reduces component count and improves time-to-market for compact GPS modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7A0528PDBVR | 200 mA, 2.8 V fixed, 25 µA IQ, 15 µVRMS noise, SOT-23-5 package | Larger footprint (SOT-23 vs XDFN-6); higher IQ increases battery drain in ultra-low-power modes | Choose if SOT-23 compatibility is required and 13 µA higher IQ is acceptable for system duty cycle. |
| MCP1700T-2802E/TT | 250 mA, 2.8 V fixed, 1.6 µA IQ, 30 µVRMS noise, SOT-23-3 package | No PG or EN pins; no active discharge; higher noise limits RF use; smaller package lacks thermal pad | Choose only for cost-sensitive, non-RF, non-sequencing applications where 1.6 µA IQ outweighs missing features. |
Compared with TPS7A0528PDBVR and MCP1700T-2802E/TT, the NCP752ASN28T1G uniquely balances ultra-low noise (11.5 µVRMS), ultra-low IQ (12 µA), integrated PG/EN, and active discharge in a thermally optimized 1.5×1.5 mm XDFN - making it the only option qualified for noise-critical RF and battery-constrained portable designs requiring full sequencing control.
Availability
NCP752ASN28T1G is available at Aetrix Electronics and suitable for wireless handsets, portable medical sensors, and GPS receivers requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for NCP752ASN28T1G 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 NCP752ASN28T1G belongs to onsemi's high-performance LDO family engineered specifically for noise-sensitive, battery-powered RF and portable electronics - emphasizing ultra-low IQ, ultra-low noise, and robust protection in miniature packages.
FAQ
What is the maximum input voltage rating for the NCP752ASN28T1G?
The NCP752ASN28T1G has an absolute maximum input voltage of 6 V. Operation is specified over 2.0 V to 5.5 V, with undervoltage lockout (UVLO) engaging below 1.2 V (typical) to prevent erratic behavior during brown-out conditions. Exceeding 6 V risks permanent device damage per the Absolute Maximum Ratings table.
Does the NCP752ASN28T1G require an external noise-bypass capacitor?
No, the NCP752ASN28T1G does not require an external noise-bypass capacitor. Its 11.5 µVRMS output noise (100 Hz–100 kHz) is achieved internally, eliminating the need for additional RC filtering - a key advantage for space-constrained RF applications like satellite radio front-ends and Bluetooth modules.
How does the Power Good (PG) pin function on the NCP752ASN28T1G?
The PG pin on the NCP752ASN28T1G is an open-drain output that goes low when VOUT falls below 90–94% of 2.8 V and goes high-impedance when VOUT rises above 92–96%. It includes 2% hysteresis and requires an external pull-up resistor. This enables precise power sequencing and system reset assertion in microcontroller-based designs using the NCP752ASN28T1G.
What thermal performance can be expected from the NCP752ASN28T1G in a standard PCB layout?
In a standard layout with 1 oz FR-4 PCB and 645 mm² copper area, the NCP752ASN28T1G exhibits a junction-to-air thermal resistance (RJA) of 149 °C/W in its XDFN-6 package. This allows sustained 200 mA operation at ambient temperatures up to +85°C when VIN = 3.8 V and VOUT = 2.8 V, assuming proper thermal pad soldering per onsemi's recommended footprint.
Is the NCP752ASN28T1G compatible with ceramic output capacitors smaller than 1 µF?
Yes - the NCP752ASN28T1G remains stable with output capacitance as low as 500 nF (0.5 µF), though 1 µF is recommended for full safety margin across voltage bias, temperature, and tolerance variations. Stability is independent of ESR, but maximum ESR must not exceed 700 mΩ; tantalum capacitors are discouraged due to high/variable ESR.
NCP752ASN28T1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SOT-23-5 Thin, TSOT-23-5
- 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):
- 2.8V
- 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:
- 5-TSOP
NCP752ASN28T1G FAQ
1.How can I place an order for NCP752ASN28T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP752ASN28T1G 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 NCP752ASN28T1G reliable?
The price and inventory of NCP752ASN28T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP752ASN28T1G is usually 5 days.
3.What payment methods are accepted for NCP752ASN28T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP752ASN28T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP752ASN28T1G?
NCP752ASN28T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP752ASN28T1G 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 NCP752ASN28T1G?
For technical support, including NCP752ASN28T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP752ASN28T1G requirements.
6.How does Aetrix verify that NCP752ASN28T1G is sourced from the original manufacturer or authorized distributors?
All NCP752ASN28T1G 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 NCP752ASN28T1G meets industry standards.
7.What is the process for return or replacement of NCP752ASN28T1G?
All NCP752ASN28T1G units undergo pre-shipment inspection (PSI). If there is an issue with NCP752ASN28T1G, 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 NCP752ASN28T1G part is unused and in its original packaging.
Return procedure for NCP752ASN28T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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