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onsemi NCP700MN275R2G
- Part No.:
- NCP700MN275R2G
- Manufacturer:
- onsemi
- Package:
- 6-VDFN Exposed Pad
- Datasheet:
-
NCP700MN275R2G.pdf
- Description:
- IC REG LINEAR 2.75V 200MA 6DFN
- Quantity:
- Payment:
- Shipping:
Inventory:9,000
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Product details
Overview
NCP700MN275R2G from onsemi is a 200 mA ultra-low-noise, high-PSRR BiCMOS LDO regulator delivering a precise 2.75 V output with 15 µVRMS noise (typ), 80 dB PSRR (typ at 1 kHz), and 150 mV dropout at 200 mA - engineered for RF power amplifier biasing in cellular handsets and noise-sensitive analog signal chains.
For engineers reviewing the NCP700MN275R2G datasheet, pinout, applications, or equivalent options, key selection criteria include its DFN6 2×2.2 mm package, Cnoise pin for configurable noise reduction, active discharge capability, and guaranteed ±3% output voltage accuracy over −40°C to +85°C.
Technical Context
The NCP700MN275R2G integrates a bipolar-based error amplifier and bandgap reference with CMOS pass transistor control, enabling simultaneous low ground current (70–220 µA) and ultra-low output noise. Its architecture separates the noise-sensitive reference node and exposes it via the dedicated Cnoise pin for external capacitor filtering.
It features logic-level CE control with internal 5 MΩ pull-down, thermal shutdown at 150°C (20°C hysteresis), and current limiting set to ≥200 mA. Stability is ensured with ceramic output capacitors as low as 1 µF and no minimum ESR requirement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.75 V ±3% (guaranteed across −40°C to +85°C, 1–200 mA load) |
| Max Output Current | 200 mA continuous (current-limited; short-circuit protection at 320 mA typ) |
| Output Noise | 15 µVRMS (10 Hz–100 kHz, with 100 nF Cnoise capacitor) |
| PSRR | 80 dB (at 1 kHz, Vin = Vout +1.0 V + 0.5 Vp-p) |
| Dropout Voltage | 150 mV (at 200 mA, TA = 25°C; ≤205 mV at −40°C) |
| Ground Current | 70 µA (Iout = 1 mA); 220 µA (Iout = 200 mA) |
| CE Threshold | 0.4 V (max low); 1.2 V (min high) - compatible with 1.8 V logic |
| Thermal Shutdown | 150°C activation with 20°C hysteresis - protects against sustained overload |
Pinout & Package
Package: DFN6 2×2.2 mm, 0.65 mm pitch, exposed EPAD (pins 2, 5, and EPAD are internally fused to GND).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - CE | Chip Enable input | Logic-controlled on/off; internal 5 MΩ pull-down; tie to Vin for always-on operation |
| 2, 5, EPAD - GND | Power supply ground | Low-inductance thermal and electrical return path; EPAD must be soldered for thermal performance |
| 3 - Vin | Input voltage supply | Accepts 2.5–5.5 V; requires 0.1 µF bypass capacitor near pin |
| 4 - Vout | Regulated output | Delivers stable 2.75 V; supports 1 µF ceramic capacitor with no ESR constraint |
| 6 - Cnoise | Noise reduction node | Direct access to internal reference; connect 10–100 nF to GND to reduce output noise by 5 µVRMS |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low noise regulation | 15 µVRMS output noise enables clean biasing of RF PAs without added filtering |
| High PSRR at RF frequencies | 80 dB rejection at 1 kHz suppresses switching noise from upstream DC/DC converters |
| Active discharge circuit | Fast Vout ramp-down when CE goes low - critical for sequencing in multi-rail systems |
| Stable with minimal capacitance | Guaranteed stability with 1 µF ceramic output cap - reduces BOM count and board area |
| Low sleep-mode current | ≤1 µA disable current enables long battery life in portable standby modes |
| Thermal and current protection | Integrated shutdown and foldback limit prevent damage during fault conditions |
Applications
| Cellular Power Amplifier Bias | Noise-Sensitive Analog Signal Chain |
|---|---|
Use Scenario: Providing clean, stable bias voltage to GaAs or SiGe RF power amplifiers in 4G LTE smartphones. IC Role / Device Role / Timing Role: Low-noise LDO supplying 2.75 V to PA collector/drain rail while rejecting PMIC ripple. Use Value: Enables >30 dB improvement in adjacent channel leakage ratio (ACLR) versus standard LDOs due to 15 µVRMS noise floor. |
Use Scenario: Powering high-resolution ADCs, DACs, and op-amps in portable medical sensors and audio codecs. IC Role / Device Role / Timing Role: Precision analog supply rail decoupled from noisy digital domains using Cnoise pin filtering. Use Value: Maintains ENOB >16 bits in 24-bit sigma-delta converters by limiting supply-induced jitter and quantization noise. |
| Portable GPS Receiver Front-End | Battery-Powered Industrial Sensor Node |
Use Scenario: Supplying LNA and mixer stages in compact GNSS modules where space and EMI are constrained. IC Role / Device Role / Timing Role: Ultra-stable 2.75 V rail with fast turn-on/turn-off for duty-cycled RF front-end operation. Use Value: Achieves <−160 dBm sensitivity with <1 dB NF degradation - validated per GPS L1 band requirements. |
Use Scenario: Regulating sensor excitation and signal conditioning circuits in wireless IoT nodes powered by coin cells. IC Role / Device Role / Timing Role: Low-quiescent LDO enabling >5-year battery life with active discharge for rapid system reset. Use Value: Reduces average system current by 40% vs. legacy regulators due to 70 µA light-load ground current. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6219B275MR-G | 200 mA, 2.75 V, 25 µVRMS noise, no Cnoise pin, 300 mV dropout | Lacks active discharge and reference node access; less suitable for RF PA bias | Lower cost option where PSRR >70 dB and noise <30 µVRMS suffice |
| Analog Devices ADP125ARHZ-2.75-R7 | 500 mA, 2.75 V, 30 µVRMS, 130 mV dropout, no Cnoise pin, higher IQ | Higher current capacity but higher noise and no dedicated noise-reduction path | Preferred when headroom is tight and load exceeds 200 mA, but RF-grade noise performance is secondary |
Compared with the NCP700MN275R2G, the XC6219B275MR-G trades noise performance and active discharge for cost and footprint simplicity, while the ADP125ARHZ-2.75-R7 prioritizes current drive and dropout over RF-specific noise suppression - making the NCP700MN275R2G uniquely suited for noise-critical, space-constrained, battery-operated RF subsystems.
Availability
NCP700MN275R2G is available at Aetrix Electronics and suitable for cellular handset design, portable GNSS receivers, battery-powered medical sensors, and industrial IoT edge nodes requiring stable component supply with full traceability and lifecycle management.
Supply support for NCP700MN275R2G 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 (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power management, analog, sensing, and connectivity solutions for automotive, industrial, and communications markets.
The NCP700MN275R2G belongs to onsemi's NCP700 family of ultra-low-noise BiCMOS LDOs, designed specifically to meet stringent power integrity requirements in RF front-ends and precision analog systems.
FAQ
What is the guaranteed output voltage tolerance for NCP700MN275R2G across temperature and load?
The NCP700MN275R2G guarantees ±3% output voltage accuracy over −40°C to +85°C ambient temperature and 1 mA to 200 mA load current, with typical deviation of ±2% under nominal conditions. This specification is verified per onsemi's Electrical Characteristics table and confirmed in Figures 3–8 showing output voltage vs. temperature for the 2.75 V variant.
Does NCP700MN275R2G require an external capacitor on the Cnoise pin, and what value is recommended?
Yes - the Cnoise pin on the NCP700MN275R2G must be connected to GND via a capacitor to achieve specified noise performance. A 100 nF capacitor yields 15 µVRMS (typ), while 10 nF gives 20 µVRMS (typ). The datasheet explicitly states that noise reduction is achieved "by using 10 nF to 15 µVRMS by using a 100 nF" - confirming both values are valid and application-dependent.
Can NCP700MN275R2G operate with only a 1 µF ceramic output capacitor, and is ESR critical?
Yes - the NCP700MN275R2G is explicitly characterized and guaranteed stable with a 1 µF ceramic output capacitor and no minimum ESR requirement. Figure 23 shows the stable region extends down to 0 Ω ESR for 1 µF, and Application Information confirms "there is no ESR lower limit for stability for the recommended 1 µF output capacitor."
What is the maximum input voltage rating for NCP700MN275R2G, and does it support 5 V input rails?
The absolute maximum input voltage for NCP700MN275R2G is 6 V, and its recommended operating range is 2.5 V to 5.5 V - fully supporting standard 5 V input rails. The Electrical Characteristics table specifies Vin = 2.5–5.5 V under test conditions, and Figure 9 confirms stable regulation up to 6 V input with 2.75 V output.
How does the active discharge feature work on NCP700MN275R2G, and when is it activated?
The active discharge circuit in the NCP700MN275R2G activates immediately when the CE pin is driven low, turning on an internal transistor between Vout and GND to rapidly discharge the output capacitor. As stated in Application Information: "When CE goes low, the active discharge transistor turns on creating a fast discharge of the output voltage," with measured turn-off times of 200–800 µs depending on load and Cnoise configuration.
NCP700MN275R2G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 6-VDFN Exposed Pad
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 2.75V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.205V @ 200mA
- Current - Output:
- 200mA
- Current - Quiescent (Iq):
- 90 µA
- Current - Supply (Max):
- 220 µA
- PSRR:
- 80dB ~ 65dB (120Hz ~ 10kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-DFN (2x2.2)
NCP700MN275R2G FAQ
1.How can I place an order for NCP700MN275R2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP700MN275R2G 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 NCP700MN275R2G reliable?
The price and inventory of NCP700MN275R2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP700MN275R2G is usually 5 days.
3.What payment methods are accepted for NCP700MN275R2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP700MN275R2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP700MN275R2G?
NCP700MN275R2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP700MN275R2G 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 NCP700MN275R2G?
For technical support, including NCP700MN275R2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP700MN275R2G requirements.
6.How does Aetrix verify that NCP700MN275R2G is sourced from the original manufacturer or authorized distributors?
All NCP700MN275R2G 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 NCP700MN275R2G meets industry standards.
7.What is the process for return or replacement of NCP700MN275R2G?
All NCP700MN275R2G units undergo pre-shipment inspection (PSI). If there is an issue with NCP700MN275R2G, 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 NCP700MN275R2G part is unused and in its original packaging.
Return procedure for NCP700MN275R2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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