onsemi NCP600SN250T1G
- Part No.:
- NCP600SN250T1G
- Manufacturer:
- onsemi
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
NCP600SN250T1G.pdf
- Description:
- IC REG LINEAR 2.5V 150MA 5TSOP
- Quantity:
- Payment:

- Shipping:

Inventory:2,444
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Product details
Overview
NCP600SN250T1G from onsemi is a fixed-output 2.5 V, 150 mA low-dropout (LDO) linear regulator in TSOP-5 package, featuring 150 mV dropout at full load, ±2% output voltage tolerance over −40 °C to +125 °C, and 50 µVrms output noise - designed for noise-sensitive portable battery-powered systems including RF front-ends and camera modules.
For engineers reviewing the NCP600SN250T1G datasheet, pinout, applications, or equivalent options, key selection criteria include guaranteed 2.5 V output accuracy under load/temperature variation, fast 15 µs enable turn-on time, thermal shutdown at 175 °C, compatibility with low-ESR ceramic capacitors, and Pb-free TSOP-5 packaging suitable for space-constrained handheld instrumentation.
Technical Context
The NCP600SN250T1G implements a PNP pass transistor architecture enabling ultra-low dropout and stable operation with 1.0 µF ceramic input/output capacitors. Its internal bandgap reference and error amplifier maintain regulation across input voltages from 1.75 V to 6.0 V and output currents up to 150 mA.
It integrates enable-controlled sleep mode (IDIS ≤ 1.0 µA), thermal shutdown with 10 °C hysteresis, current limiting (~550 mA typical short-circuit current), and an overshoot clamp circuit active during load transients - all without requiring external compensation components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5 V ±2% over −40 °C to +125 °C and 1–150 mA load - ensures stable core supply for 2.5 V logic and analog circuits without trimming. |
| Dropout Voltage | 100 mV typical / 150 mV max at 150 mA - enables operation from 2.6 V input, critical for single-cell Li-ion or dual-cell alkaline systems. |
| Ground Current | 140 µA typical at 150 mA load - minimizes quiescent power loss in always-on subsystems like sensor wake-up paths. |
| PSRR | 62 dB @ 120 Hz, 55 dB @ 1 kHz - suppresses switching noise from upstream DC-DC converters in mixed-signal applications. |
| Output Noise | 50 µVrms (10 Hz–100 kHz) - meets low-noise requirements for VCO biasing, ADC reference supplies, and RF LNA stages. |
| Enable Threshold | VTH(HI) = 0.9 V min, VTH(LO) = 0.4 V max - compatible with 1.8 V/3.3 V GPIOs and supports direct tie-to-VIN for always-on use. |
| Thermal Shutdown | Activates at 175 °C with 10 °C hysteresis - protects against sustained overload or poor PCB thermal design without latch-up. |
Pinout & Package
Package: TSOP-5 (Case 483), 3.00 × 1.50 × 0.95 mm, Pb-free, surface-mount. Exposed pad not present - thermal path relies on copper traces connected to GND pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VIN | Positive power supply input | Accepts 1.75–6.0 V; requires local 1.0 µF ceramic decoupling; trace width impacts noise immunity and thermal rise. |
| 2 - GND | Power ground and substrate reference | Primary return path for input/output current; must connect to low-impedance system ground plane to ensure stability and PSRR. |
| 3 - ENABLE | Logic-controlled enable input | Pull ≥0.9 V to activate regulator; pull ≤0.4 V to enter <1.0 µA disable state; tie to VIN if unused. |
| 4 - VOUT | Regulated 2.5 V output | Delivers up to 150 mA; requires 1.0 µF ceramic output capacitor placed adjacent to pin for transient response and stability. |
| 5 - NC | No connection (fixed-voltage version) | Not bonded internally; no PCB trace or component should connect to this pin - avoids unintended parasitic coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 100 mV typical at 150 mA - extends battery runtime in 2.5 V systems powered by aging or low-VOC cells. |
| Fast enable response | 15 µs typical turn-on time - supports rapid power sequencing in multi-rail embedded systems and camera auto-focus timing. |
| Low-noise regulation | 50 µVrms without bypass capacitor - eliminates need for external noise-reduction networks in RF/analog signal chains. |
| Thermal protection | 175 °C shutdown with 10 °C hysteresis - prevents permanent damage during sustained overload or inadequate heatsinking. |
| Ceramic capacitor compatibility | Stable with 1.0 µF ceramic output cap (no ESR requirement) - reduces BOM cost and board area vs. tantalum alternatives. |
Applications
| SMPS Post-Regulation | Noise-Sensitive RF Circuits |
|---|---|
Use Scenario: Clean 2.5 V supply for FPGA I/O banks following a noisy buck converter. IC Role / Device Role / Timing Role: Final-stage LDO providing ripple-free, low-noise power to digital interface circuitry. Use Value: 62 dB PSRR at 120 Hz suppresses switching artifacts from upstream DC-DC, preventing bit errors in high-speed SerDes links. |
Use Scenario: Bias supply for VCO and LNA in 2.4 GHz Wi-Fi transceiver module. IC Role / Device Role / Timing Role: Ultra-low-noise voltage source stabilizing oscillator frequency and amplifier gain. Use Value: 50 µVrms output noise directly limits phase noise floor - critical for meeting IEEE 802.11ac EVM specs. |
| Hand-Held Instrumentation | Camcorders and Cameras |
Use Scenario: Powering precision ADC reference and op-amp signal chain in portable multimeter. IC Role / Device Role / Timing Role: Low-drift, low-noise 2.5 V rail for analog front-end calibration and measurement accuracy. Use Value: ±2% output tolerance over temperature ensures consistent full-scale range without software recalibration. |
Use Scenario: Supplying image sensor analog core and autofocus motor driver in compact camcorder. IC Role / Device Role / Timing Role: Compact, thermally robust regulator supporting burst-mode imaging and real-time video processing. Use Value: 150 mA capability and 15 µs enable time allow synchronized power-up of sensor and ISP, reducing startup latency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-2502E/TT | 250 mA output, 175 mV dropout at 250 mA, 1.6 µA quiescent current - higher IQ but lower dropout at lighter loads. | Better suited for ultra-low-power always-on sensors; less optimal for 150 mA continuous loads due to thermal derating in SOT-23. | Select when <2 µA sleep current is mandatory and peak load ≤100 mA; verify thermal performance in target PCB layout. |
| Torex XC6206P252MR-G | 150 mA output, 160 mV dropout at 150 mA, 1.0 µA IQ, SOT-25 package - smaller footprint but lower PSRR (50 dB @ 1 kHz). | Preferred for size-constrained wearables; insufficient PSRR for post-regulating high-frequency SMPS in RF modules. | Choose for minimal board area where moderate noise rejection suffices; avoid in RF bias or high-precision analog applications. |
Compared with MCP1700T-2502E/TT and XC6206P252MR-G, the NCP600SN250T1G delivers superior PSRR and thermal robustness in TSOP-5, making it optimal for noise-critical 2.5 V rails where 150 mA load and fast enable timing are required - without compromising on industrial temperature range or ceramic capacitor simplicity.
Availability
NCP600SN250T1G is available at Aetrix Electronics and suitable for portable instrumentation, RF front-end biasing, and camera module power management requiring stable component supply across automotive-grade temperature ranges and long production lifecycles.
Supply support for NCP600SN250T1G 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, and sensing solutions for automotive, industrial, and consumer markets.
The NCP600 series was developed for portable battery-powered applications demanding high accuracy, low noise, and fast enable response - targeting handheld medical devices, wireless sensors, and imaging systems where reliability and small form factor are essential.
FAQ
What is the maximum input voltage for the NCP600SN250T1G?
The NCP600SN250T1G supports an absolute maximum input voltage of 6.5 V, with recommended operating range from 1.75 V to 6.0 V. Operation above 6.5 V risks permanent damage. For reliable 2.5 V output, minimum input must be ≥2.6 V (2.5 V + 100 mV typical dropout) - verified across −40 °C to +125 °C ambient.
Does the NCP600SN250T1G require an external bypass capacitor for noise reduction?
No, the NCP600SN250T1G does not require an external noise-reduction capacitor. Its internal design achieves 50 µVrms output noise (10 Hz–100 kHz) without one - unlike many competing LDOs that mandate a 10 nF–100 nF capacitor on the ADJ pin. This simplifies layout and eliminates startup delay penalties associated with external caps.
What is the function of Pin 5 (NC) on the NCP600SN250T1G TSOP-5 package?
Pin 5 on the NCP600SN250T1G is a true no-connect (NC) terminal - not bonded internally and electrically isolated. It must remain unconnected on the PCB; routing traces or placing components to this pin may introduce parasitic coupling or mechanical stress. This distinguishes it from the adjustable-version NCP600SNADJT1G, where Pin 5 is the ADJ input.
Can the NCP600SN250T1G be used with ceramic output capacitors?
Yes, the NCP600SN250T1G is fully stable with 1.0 µF ceramic output capacitors and imposes no minimum ESR requirement. This eliminates reliance on larger, more expensive tantalum or aluminum electrolytic capacitors - reducing cost, size, and failure risk while improving transient response in portable designs.
What thermal derating applies to the NCP600SN250T1G in its TSOP-5 package?
In TSOP-5 (RJA = 215 °C/W), the NCP600SN250T1G dissipates up to ~320 mW at 25 °C ambient before reaching 125 °C junction limit. At 85 °C ambient, maximum safe dissipation drops to ~175 mW - corresponding to ~70 mA at 2.5 V output with 3.3 V input. Layout with wider GND traces improves thermal performance significantly.
NCP600SN250T1G 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):
- 2.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 175 µA
- Current - Supply (Max):
- -
- PSRR:
- 62dB ~ 38dB (120Hz ~ 10kHz)
- Control Features:
- -
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 5-TSOP
NCP600SN250T1G FAQ
1.How can I place an order for NCP600SN250T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP600SN250T1G 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 NCP600SN250T1G reliable?
The price and inventory of NCP600SN250T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP600SN250T1G is usually 5 days.
3.What payment methods are accepted for NCP600SN250T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP600SN250T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP600SN250T1G?
NCP600SN250T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP600SN250T1G 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 NCP600SN250T1G?
For technical support, including NCP600SN250T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP600SN250T1G requirements.
6.How does Aetrix verify that NCP600SN250T1G is sourced from the original manufacturer or authorized distributors?
All NCP600SN250T1G 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 NCP600SN250T1G meets industry standards.
7.What is the process for return or replacement of NCP600SN250T1G?
All NCP600SN250T1G units undergo pre-shipment inspection (PSI). If there is an issue with NCP600SN250T1G, 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 NCP600SN250T1G part is unused and in its original packaging.
Return procedure for NCP600SN250T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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