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onsemi NCP603SN130T1G
- Part No.:
- NCP603SN130T1G
- Manufacturer:
- onsemi
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
NCP603SN130T1G.pdf
- Description:
- IC REG LINEAR 1.3V 300MA 5TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,087
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Product details
Overview
NCP603SN130T1G from onsemi is a fixed-output 1.3 V, 300 mA low-dropout (LDO) linear regulator in TSOP-5 package, featuring 175 mV typical dropout at 150 mA, ±2% output voltage accuracy over −40 °C to 125 °C, and 50 µVrms output noise (10 Hz–100 kHz). It delivers stable power for noise-sensitive RF stages and portable computing subsystems requiring low quiescent current and fast enable response.
For engineers reviewing the NCP603SN130T1G datasheet, pinout, applications, or equivalent options, key selection criteria include guaranteed 1.3 V output tolerance across temperature, thermal shutdown at 175 °C, ESD robustness (HBM 3.5 kV), compatibility with ceramic output capacitors ≥1.0 µF, and enable functionality with 0.9 V logic-high threshold.
Technical Context
The NCP603SN130T1G implements a CMOS-based LDO architecture with internal P-channel pass transistor, enabling low dropout and high PSRR (62 dB at 120 Hz). Its enable input controls full device activation with 15 µs turn-on time and sub-1 µA disable current, supporting battery-powered systems requiring dynamic power gating.
It integrates thermal shutdown (175 °C trip, 10 °C hysteresis) and current limiting (300–900 mA), operates from 1.75 V to 6.0 V input, and maintains regulation down to 1.3 V output with no minimum ESR requirement on the output capacitor-enabling use of low-ESR ceramic capacitors for compact, stable designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.3 V ±2% (−40 °C to 125 °C), ensuring stable core bias for low-voltage logic and analog circuits |
| Max Output Current | 300 mA continuous, sufficient for powering microcontroller I/O banks or sensor interfaces |
| Dropout Voltage | 175 mV typical at 150 mA, enabling operation from 1.475 V input while maintaining 1.3 V output |
| Noise Voltage | 50 µVrms (10 Hz–100 kHz), critical for powering VCOs and RF front-ends without added filtering |
| PSRR | 62 dB at 120 Hz, suppressing ripple from upstream switching regulators in post-regulation applications |
| Enable Threshold | 0.9 V logic-high, compatible with 1.8 V/3.3 V GPIO without level-shifting |
| ESD Protection | HBM 3.5 kV / MM 200 V, meeting industrial handling requirements without external protection |
Pinout & Package
TSOP-5 (Case 483, 3.00 × 1.50 × 0.95 mm, 0.95 mm pitch) surface-mount package with exposed pad not electrically connected. Pin 1 = VIN, Pin 2 = GND, Pin 3 = ENABLE, Pin 4 = NC (no connection), Pin 5 = VOUT.
| 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 |
| 2 - GND | Power ground and substrate reference | Must connect to low-impedance ground plane; shared return for input/output paths |
| 3 - ENABLE | Logic-controlled regulator activation | Pull ≥0.9 V to enable; ≤0.4 V to enter standby (<1 µA IDIS) |
| 4 - NC | No connection | Not bonded internally; PCB trace may be routed but must remain floating |
| 5 - VOUT | Regulated 1.3 V output | Drives load up to 300 mA; requires ≥1.0 µF ceramic output capacitor |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise regulation | 50 µVrms output noise without bypass capacitor, eliminating need for external noise-reduction networks |
| Fast enable response | 15 µs output rise time enables rapid power sequencing in multi-rail systems |
| Thermal protection | 175 °C junction shutdown with 10 °C hysteresis prevents permanent damage during overload or poor heatsinking |
| Ceramic capacitor compatibility | Stable with ≥1.0 µF ceramic output capacitors regardless of ESR, reducing BOM count and board area |
| Pb-free construction | RoHS-compliant TSOP-5 package with SnAgCu termination, qualified for lead-free reflow |
Applications
| Portable Audio Power | Noise-Sensitive RF Bias |
|---|---|
Use Scenario: Powering DACs, headphone amplifiers, and audio codecs in Bluetooth earbuds and portable players. IC Role / Device Role / Timing Role: Primary 1.3 V LDO supplying analog signal chain components requiring ultra-low noise and tight voltage tolerance. Use Value: 50 µVrms noise ensures no audible hiss or distortion; ±2% output stability preserves SNR across temperature. | Use Scenario: Biasing VCOs, LNA stages, and mixer cores in cellular IoT modules and GPS receivers. IC Role / Device Role / Timing Role: Clean, low-dropout supply for RF analog blocks where supply ripple directly modulates carrier phase. Use Value: 62 dB PSRR at 120 Hz suppresses switching noise from PMICs; 175 mV dropout enables operation from single-cell Li-ion under discharge. |
| SMPS Post-Regulation | Microcontroller Core Supply |
Use Scenario: Final-stage regulation after buck converters in industrial controllers and smart sensors. IC Role / Device Role / Timing Role: Low-noise, high-PSRR post-regulator improving transient response and ripple rejection of switched-mode supplies. Use Value: Eliminates need for additional LC filters; 15 µs enable timing supports synchronized power-up with system controller. | Use Scenario: Supplying 1.3 V I/O or core rails for ARM Cortex-M0+ and RISC-V microcontrollers in wearables. IC Role / Device Role / Timing Role: Fixed-output LDO delivering precise voltage to digital logic domains with fast enable for sleep/wake cycles. Use Value: Sub-1 µA disable current extends battery life; thermal shutdown protects during firmware lockup or short-circuit events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7A0513PDBVR | 1.3 V fixed, 200 mA max, 170 mV dropout @ 150 mA, 30 µVrms noise, SOT-23-5 | Lower current rating and noise; lacks thermal hysteresis specification | Select when lower noise and smaller footprint are prioritized over 300 mA capability and explicit thermal recovery behavior |
| MCP1700T-1302E/TT | 1.3 V fixed, 250 mA max, 600 mV dropout @ 250 mA, 30 µVrms noise, SOT-23-3 | Higher dropout, no enable pin, 3-pin package limits flexibility in power sequencing | Choose for cost-sensitive, non-sequenced applications where 600 mV dropout is acceptable and enable control is unnecessary |
Compared with TPS7A0513PDBVR and MCP1700T-1302E/TT, the NCP603SN130T1G provides higher output current (300 mA vs. 200/250 mA), tighter thermal protection (175 °C trip + 10 °C hysteresis), and integrated enable functionality-making it suitable for systems demanding robust power sequencing and sustained load capability.
Availability
NCP603SN130T1G is available at Aetrix Electronics and suitable for portable audio power, noise-sensitive RF bias, and SMPS post-regulation requiring stable component supply across industrial and consumer design cycles.
Supply support for NCP603SN130T1G 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 focused on energy-efficient electronics, delivering power management, analog, and sensing solutions for automotive, industrial, and cloud infrastructure markets.
The NCP603 series is designed for portable battery-powered applications requiring high-performance LDO regulation-emphasizing low noise, fast enable, low dropout, and ceramic capacitor compatibility in space-constrained designs.
FAQ
What is the guaranteed output voltage tolerance for NCP603SN130T1G across temperature?
The NCP603SN130T1G guarantees ±2% output voltage tolerance over the full operating temperature range of −40 °C to 125 °C, with typical output of 1.3 V and min/max values of 1.270 V and 1.326 V respectively at 1.0–150 mA load. This specification is validated per onsemi's Electrical Characteristics table and applies to all units shipped in the TSOP-5 package.
Does NCP603SN130T1G require an external bypass capacitor for noise reduction?
No, the NCP603SN130T1G does not require an external bypass capacitor for noise reduction. Its internal design achieves 50 µVrms output noise (10 Hz–100 kHz) without any additional capacitor, unlike many competing LDOs that mandate external noise-reduction pins or capacitors. This simplifies layout and reduces BOM count while maintaining performance.
What is the maximum input voltage the NCP603SN130T1G can withstand?
The NCP603SN130T1G has an absolute maximum input voltage rating of 6.5 V. However, its recommended operating input voltage range is 1.75 V to 6.0 V. Operation above 6.0 V is outside the specified functional range and may compromise reliability or parametric performance-even if within absolute maximum limits.
How does the enable function behave on NCP603SN130T1G, and what happens when it's left unconnected?
The ENABLE pin on NCP603SN130T1G asserts logic-high (≥0.9 V) to activate regulation and logic-low (≤0.4 V) to enter standby mode (<1 µA disable current). If unused, the pin must be tied directly to VIN per datasheet guidance; floating the pin risks undefined operation due to noise susceptibility and potential partial enable states.
Is NCP603SN130T1G compatible with ceramic output capacitors, and what is the minimum value required?
Yes, the NCP603SN130T1G is fully compatible with ceramic output capacitors and requires a minimum of 1.0 µF. Unlike older LDO architectures, it imposes no minimum ESR requirement, allowing use of low-ESR X5R/X7R ceramics without stability risk-verified across temperature and load conditions in Figure 28 of the datasheet.
NCP603SN130T1G 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):
- 1.3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.48V @ 300mA
- Current - Output:
- 300mA
- Current - Quiescent (Iq):
- 180 µA
- Current - Supply (Max):
- -
- PSRR:
- 62dB ~ 38dB (120Hz ~ 10kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Transient Voltage
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 5-TSOP
NCP603SN130T1G FAQ
1.How can I place an order for NCP603SN130T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP603SN130T1G 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 NCP603SN130T1G reliable?
The price and inventory of NCP603SN130T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP603SN130T1G is usually 5 days.
3.What payment methods are accepted for NCP603SN130T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP603SN130T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP603SN130T1G?
NCP603SN130T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP603SN130T1G 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 NCP603SN130T1G?
For technical support, including NCP603SN130T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP603SN130T1G requirements.
6.How does Aetrix verify that NCP603SN130T1G is sourced from the original manufacturer or authorized distributors?
All NCP603SN130T1G 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 NCP603SN130T1G meets industry standards.
7.What is the process for return or replacement of NCP603SN130T1G?
All NCP603SN130T1G units undergo pre-shipment inspection (PSI). If there is an issue with NCP603SN130T1G, 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 NCP603SN130T1G part is unused and in its original packaging.
Return procedure for NCP603SN130T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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