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onsemi NCP500SN30T1
- Part No.:
- NCP500SN30T1
- Manufacturer:
- onsemi
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
NCP500SN30T1.pdf
- Description:
- IC REG LINEAR 3V 150MA 5TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,047
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Product details
Overview
NCP500SN30T1 from onsemi is a fixed-output, low-noise, low-dropout linear regulator delivering 150 mA with 3.0 V output, ultra-low dropout (170 mV at 150 mA), 2.5% output accuracy, and no external bypass capacitor required - ideal for noise-sensitive RF and portable battery-powered systems.
For engineers reviewing the NCP500SN30T1 datasheet, pinout, applications, or equivalent options, key selection criteria include dropout voltage at full load, enable logic compatibility down to 1.0 V, RMS noise performance (50 µV, 10 Hz–100 kHz), thermal shutdown behavior, and TSOP-5 package footprint compatibility.
Technical Context
The NCP500SN30T1 uses a PMOS pass transistor architecture enabling ultra-low dropout and fast 20 µs enable turn-on time. It integrates current limit, thermal shutdown, and precision voltage reference without requiring external compensation.
Designed for ceramic-capacitor stability, it operates across 1.8 V–6.0 V input with 1.0 µF minimum input/output capacitance and achieves 62 dB ripple rejection at 1 kHz - critical for post-regulation in SMPS systems and analog signal chains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.0 V ±2.5% (2.925–3.075 V over −40°C to +85°C, 1–150 mA load) |
| Max Output Current | 150 mA continuous; short-circuit protected with infinite duration rating |
| Dropout Voltage | 170 mV at 150 mA (measured at Vout −2.0%), enabling operation with Vin as low as 3.17 V |
| Noise Performance | 50 µV RMS (10 Hz–100 kHz, no bypass capacitor required) |
| Enable Threshold | Logic-high turn-on at ≥0.9 V; logic-low turn-off at ≤0.15 V - compatible with 1.0 V logic systems |
| Quiescent Current | 185 µA typical at 150 mA load and 0.9 V enable; 0.01 µA in shutdown |
| Ripple Rejection | 62 dB at 1 kHz (Vin = Vout + 1.0 V + 0.5 Vpp, Io = 60 mA) |
Pinout & Package
Package: TSOP-5 (Case 483), 5-pin surface-mount, Pb-free, 2.0 mm × 2.5 mm footprint with exposed thermal pad (not electrically connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Vin | Positive power supply input; supports 1.8–6.0 V; requires 1.0 µF ceramic decoupling close to pin |
| 2 | GND | Power ground reference; must be low-impedance connection to minimize noise coupling |
| 3 | Enable | Active-high digital control; driven directly by 1.0 V logic; tie to Vin if unused |
| 4 | Vout | Regulated 3.0 V output; stable with ≥1.0 µF ceramic capacitor; no ESR requirement |
| 5 | N/C | No internal connection; left floating or grounded per layout best practice (no electrical function) |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 170 mV @ 150 mA enables single-cell Li-ion (3.0 V nominal) and 3.3 V rail post-regulation |
| Low-noise operation | 50 µV RMS noise without bypass capacitor simplifies BOM and improves startup reliability |
| Fast enable response | 20 µs turn-on time supports dynamic power sequencing in multi-rail embedded systems |
| Wide input range | 1.8–6.0 V input accommodates diverse sources: Li-ion, NiMH, USB, and SMPS outputs |
| Automotive-ready variant | NCV500 series available AEC-Q100 qualified; NCP500SN30T1 shares same core design and pinout |
Applications
| RF Power Amplifier Biasing | VCO Supply Regulation |
|---|---|
Use Scenario: Providing clean, stable bias to GaAs or SiGe RF power amplifiers in cellular handsets and IoT transceivers. IC Role / Device Role / Timing Role: Low-noise LDO supplying 3.0 V bias under dynamic load (1–150 mA), rejecting switching noise from adjacent DC/DC converters. Use Value: 50 µV RMS noise prevents phase noise degradation; 170 mV dropout preserves headroom during battery discharge. | Use Scenario: Powering voltage-controlled oscillators in PLL-based clock generators and wireless receivers. IC Role / Device Role / Timing Role: Precision 3.0 V reference source with <2.5% tolerance and minimal line/load regulation drift. Use Value: 1.0 mV line regulation and 15 mV load regulation ensure VCO tuning voltage stability across operating conditions. |
| SMPS Post-Regulation | Portable Medical Sensor Front-End |
Use Scenario: Final-stage regulation after a buck converter in battery-powered instrumentation with strict EMI limits. IC Role / Device Role / Timing Role: Low-ESR-stable LDO filtering high-frequency ripple (62 dB rejection at 1 kHz) from upstream switcher. Use Value: Eliminates need for ferrite beads or LC filters; reduces board area and cost while meeting CISPR-22 Class B emissions. | Use Scenario: Supplying analog front-end (AFE) ICs and ADCs in handheld ECG or pulse oximetry devices. IC Role / Device Role / Timing Role: Ultra-low-noise 3.0 V rail powering precision op-amps and reference buffers with sub-mV offset stability. Use Value: 50 µV RMS noise avoids signal-to-noise ratio degradation in 16-bit+ data acquisition paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-noise LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-3002E/TT | 250 mA rated, 175 mV dropout at 250 mA, 65 µV RMS noise, SOT-23-5 package | Higher max current but larger dropout at 150 mA; requires 1.0 µF ceramic output cap | Preferred when >150 mA margin or SOT-23 layout reuse is needed; not pin-compatible with TSOP-5 |
| TLC7603-30IDBVR | 200 mA rated, 220 mV dropout at 150 mA, 40 µV RMS noise, 62 dB PSRR, SOT-23-5 | Lower noise but higher dropout; tighter 1% initial accuracy; no enable pin | Selected for ultra-low-noise priority where enable control is unnecessary and PCB space allows SOT-23-5 |
Compared with MCP1700T-3002E/TT and TLC7603-30IDBVR, the NCP500SN30T1 offers the lowest dropout at 150 mA and integrated enable functionality in TSOP-5 - making it optimal for space-constrained, battery-voltage-sensitive designs requiring dynamic power control.
Availability
NCP500SN30T1 is available at Aetrix Electronics and suitable for RF front-ends, portable medical sensors, and SMPS post-regulation requiring stable component supply, long-term lifecycle support, and automotive-grade traceability options.
Supply support for NCP500SN30T1 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 supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The NCP500 series was designed specifically for portable, battery-powered systems demanding low noise, fast enable response, and ultra-low dropout - targeting RF, sensor, and precision analog subsystems.
FAQ
What is the maximum input voltage for NCP500SN30T1?
The absolute maximum input voltage for NCP500SN30T1 is 6.0 V. Operation above this level risks permanent damage. For reliable 3.0 V output, minimum input is 3.17 V (3.0 V + 170 mV dropout); recommended operating range is 3.3 V to 5.5 V to maintain margin across temperature and load.
Does NCP500SN30T1 require an external bypass capacitor?
No, NCP500SN30T1 does not require an external noise bypass capacitor. Its internal low-noise architecture delivers 50 µV RMS noise (10 Hz–100 kHz) without one - reducing BOM count, PCB area, and startup delay versus traditional LDOs.
What is the thermal shutdown threshold of NCP500SN30T1?
NCP500SN30T1 features internal thermal shutdown that activates at approximately 160°C junction temperature. Once triggered, the device disables output until junction temperature falls below the hysteresis threshold (~140°C), protecting against sustained overloads or poor PCB thermal design.
Can NCP500SN30T1 be used with 1.0 V logic enable signals?
Yes, NCP500SN30T1 supports direct interface with 1.0 V logic: its enable threshold is guaranteed ≥0.9 V for turn-on and ≤0.15 V for turn-off, providing robust noise margin and eliminating need for level-shifting circuitry in ultra-low-voltage systems.
Is NCP500SN30T1 compatible with ceramic output capacitors?
Yes, NCP500SN30T1 is fully stable with ceramic output capacitors ≥1.0 µF and zero minimum ESR requirement. This eliminates reliance on tantalum or aluminum electrolytic caps, improving reliability, temperature stability, and transient response in portable designs.
NCP500SN30T1 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):
- 6V
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.24V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 1 µA
- Current - Supply (Max):
- 300 µA
- PSRR:
- 62dB (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:
- 5-TSOP
NCP500SN30T1 FAQ
1.How can I place an order for NCP500SN30T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP500SN30T1 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 NCP500SN30T1 reliable?
The price and inventory of NCP500SN30T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP500SN30T1 is usually 5 days.
3.What payment methods are accepted for NCP500SN30T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP500SN30T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP500SN30T1?
NCP500SN30T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP500SN30T1 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 NCP500SN30T1?
For technical support, including NCP500SN30T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP500SN30T1 requirements.
6.How does Aetrix verify that NCP500SN30T1 is sourced from the original manufacturer or authorized distributors?
All NCP500SN30T1 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 NCP500SN30T1 meets industry standards.
7.What is the process for return or replacement of NCP500SN30T1?
All NCP500SN30T1 units undergo pre-shipment inspection (PSI). If there is an issue with NCP500SN30T1, 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 NCP500SN30T1 part is unused and in its original packaging.
Return procedure for NCP500SN30T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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