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onsemi NCP512SQ13T1G
- Part No.:
- NCP512SQ13T1G
- Manufacturer:
- onsemi
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
NCP512SQ13T1G.pdf
- Description:
- IC REG LINEAR 1.3V 80MA SC88A
- Quantity:
- Payment:
- Shipping:
Inventory:4,314
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Product details
Overview
NCP512SQ13T1G from onsemi is a fixed-output 1.3 V CMOS low-quiescent-current linear voltage regulator in SC-88A (SOT-353) package, featuring 40 µA typical quiescent current, 180 mV dropout at 80 mA, and ±2.0% output voltage accuracy - designed for battery-powered handheld instruments requiring stable low-voltage supply.
For engineers reviewing the NCP512SQ13T1G datasheet, pinout, applications, or equivalent options, key selection criteria include ultra-low IQ, SC-88A footprint compatibility, enable-controlled standby mode, and ceramic-capacitor stability without ESR constraints.
Technical Context
The NCP512SQ13T1G integrates a PMOS pass transistor, precision voltage reference, error amplifier, and thermal/current-limit protection. Its enable input provides logic-level control of output regulation, with threshold voltages of 1.3 V (turn-on) and 0.3 V (turn-off).
Designed for low-noise, low-power operation, it delivers 80 mA output current with 180 mV dropout at 3.0 V output and supports input voltages up to 6.0 V. Output voltage noise is 180 µVRMS (100 Hz–100 kHz), and ripple rejection reaches 50 dB at 1 kHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.3 V ±2.0% over −40 °C to +85 °C - ensures stable core/bias rail for ultra-low-power microcontrollers. |
| Quiescent Current | 40 µA typical (IOUT = 1–80 mA) - enables multi-year battery life in always-on sensor nodes. |
| Dropout Voltage | 180 mV at 80 mA and 3.0 V VOUT - allows operation down to ~1.48 V input, maximizing usable battery range. |
| Enable Threshold | 1.3 V (rising edge turn-on), 0.3 V (falling edge turn-off) - compatible with 1.8 V/3.3 V GPIO without level-shifting. |
| Thermal Protection | Internal shutdown at ~160 °C - prevents damage during sustained overload or poor PCB thermal design. |
| Package | SC-88A (SOT-353), 5-pin surface-mount - 2.0 × 2.1 mm footprint ideal for space-constrained portable PCBs. |
| Capacitor Support | Stable with 1.0 µF ceramic or tantalum output capacitor - eliminates need for high-ESR electrolytics or complex compensation. |
Pinout & Package
SC-88A (SOT-353) package: 5-pin, 2.0 mm × 2.1 mm × 0.9 mm body, 0.65 mm pitch, Pb-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Vin | Positive input supply (0–6.0 V); requires local 1.0 µF decoupling capacitor. |
| 2 | GND | Power ground reference; must be low-impedance connection to minimize noise coupling. |
| 3 | Enable | Active-high digital control input; pull to Vin for always-on, or drive low for 0.1 µA standby current. |
| 4 | N/C | No internal connection - leave unconnected or float; no routing required. |
| 5 | Vout | Regulated 1.3 V output; connects directly to load and 1.0 µF output capacitor. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 40 µA typical enables >10-year battery life in 10 µA average-load IoT sensors. |
| Low-dropout PMOS architecture | 180 mV dropout at full 80 mA load preserves battery energy in deep-discharge conditions. |
| Enable-controlled shutdown | Reduces total system current to 0.1 µA when disabled - critical for duty-cycled wireless transceivers. |
| ±2.0% output accuracy | Meets tight analog sensor bias and MCU core voltage tolerance requirements without external trimming. |
| Ceramic-capacitor stability | Eliminates ESR dependency - supports low-profile, high-reliability MLCCs instead of bulkier tantalum parts. |
Applications
| Portable Medical Sensors | Wearable Health Monitors |
|---|---|
Use Scenario: Continuous glucose monitor (CGM) using coin-cell battery and low-power ADC. IC Role / Device Role / Timing Role: Provides stable 1.3 V reference and bias voltage for analog front-end and BLE SoC core. Use Value: 40 µA IQ extends single-CR2032 battery life beyond 2 years under typical usage. | Use Scenario: Optical heart-rate sensor in wrist-worn fitness tracker. IC Role / Device Role / Timing Role: Supplies regulated 1.3 V to photodiode amplifier and pulse-width modulated LED driver. Use Value: SC-88A footprint minimizes board area while maintaining 80 mA peak current for LED bursts. |
| Industrial Wireless Nodes | Smart Meter Subsystems |
Use Scenario: LoRaWAN temperature/humidity node powered by AA alkaline cells. IC Role / Device Role / Timing Role: Powers ultra-low-power MCU and RF transceiver during periodic wake-up and transmit cycles. Use Value: Enable pin allows MCU to disable regulator between readings, reducing average current to <1 µA. | Use Scenario: Real-time clock (RTC) and backup memory supply in electricity meter with lithium-thionyl chloride battery. IC Role / Device Role / Timing Role: Delivers precise 1.3 V to RTC IC and SRAM during main power loss. Use Value: ±2.0% output accuracy ensures RTC timing drift remains within ±2 ppm over temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-IQ LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-1302E/TT | 1.3 V output, 1.6 µA IQ, 250 mV dropout at 250 mA - lower IQ but higher dropout and larger SOT-23-5 package. | Preferred for sub-µA standby systems; less suitable for space-constrained layouts due to 2.9 × 1.6 mm footprint. | Select if standby current is primary constraint and board area permits larger package. |
| TPS70613DBVR | 1.3 V output, 1.3 µA IQ, 230 mV dropout at 150 mA - ultra-low IQ but requires minimum 2.2 µF output capacitance and has different enable polarity. | Used in TI-based designs with strict leakage budgets; incompatible with existing NCP512SQ13T1G layout due to pinout mismatch. | Select only for new designs targeting TI ecosystem; not drop-in replaceable. |
Compared with MCP1700T-1302E/TT and TPS70613DBVR, the NCP512SQ13T1G offers optimal balance of ultra-low IQ, compact SC-88A size, and ceramic-capacitor flexibility - making it preferred for cost-sensitive, space-limited battery-powered instrumentation where 40 µA IQ suffices.
Availability
NCP512SQ13T1G is available at Aetrix Electronics and suitable for portable medical sensors, wearable health monitors, and industrial wireless nodes requiring stable component supply with guaranteed long-term sourcing.
Supply support for NCP512SQ13T1G 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 silicon solutions for automotive, industrial, cloud, and IoT applications.
The NCP512 series belongs to onsemi's low-power linear regulator product line, engineered specifically for battery-operated portable equipment demanding minimal quiescent current and small-footprint packaging.
FAQ
What is the maximum input voltage rating for the NCP512SQ13T1G?
The NCP512SQ13T1G has an absolute maximum input voltage (VIN) of 6.0 V, as specified in the Maximum Ratings table. Operation above this voltage risks permanent device damage. For reliable 1.3 V output regulation, input should remain ≥1.48 V (1.3 V + 180 mV dropout) and ≤6.0 V, with recommended derating for thermal safety in high-current applications.
Does the NCP512SQ13T1G require external compensation components?
No, the NCP512SQ13T1G does not require external compensation. It is internally compensated and stable with a minimum 1.0 µF ceramic or tantalum output capacitor - no ESR constraints or additional resistors/capacitors are needed, simplifying design and reducing BOM count.
How does the enable pin function on the NCP512SQ13T1G?
The enable pin (Pin 3) of the NCP512SQ13T1G is active-high: pulling it ≥1.3 V turns the regulator on, while pulling it ≤0.3 V disables output and reduces quiescent current to 0.1 µA. If unused, it must be tied to VIN; floating is not permitted per datasheet guidance.
What is the thermal shutdown threshold for the NCP512SQ13T1G?
The NCP512SQ13T1G incorporates internal thermal protection that activates at approximately 160 °C junction temperature, disabling output until the die cools. This safeguard prevents irreversible damage during sustained overload or inadequate PCB heat sinking, and recovery is automatic upon temperature reduction.
Can the NCP512SQ13T1G be used with a 1.0 µF X5R ceramic capacitor?
Yes, the NCP512SQ13T1G is explicitly characterized and qualified for use with 1.0 µF X5R ceramic capacitors such as TDK C1608X5R1A105K. Its internal compensation ensures stability across the full ESR range (a few mΩ to 5 Ω), eliminating need for high-ESR tantalum or aluminum electrolytic types.
NCP512SQ13T1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- 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):
- 0.7V @ 80mA
- Current - Output:
- 80mA
- Current - Quiescent (Iq):
- 1 µA
- Current - Supply (Max):
- 90 µA
- PSRR:
- 50dB (1kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-88A (SC-70-5/SOT-353)
NCP512SQ13T1G FAQ
1.How can I place an order for NCP512SQ13T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP512SQ13T1G 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 NCP512SQ13T1G reliable?
The price and inventory of NCP512SQ13T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP512SQ13T1G is usually 5 days.
3.What payment methods are accepted for NCP512SQ13T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP512SQ13T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP512SQ13T1G?
NCP512SQ13T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP512SQ13T1G 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 NCP512SQ13T1G?
For technical support, including NCP512SQ13T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP512SQ13T1G requirements.
6.How does Aetrix verify that NCP512SQ13T1G is sourced from the original manufacturer or authorized distributors?
All NCP512SQ13T1G 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 NCP512SQ13T1G meets industry standards.
7.What is the process for return or replacement of NCP512SQ13T1G?
All NCP512SQ13T1G units undergo pre-shipment inspection (PSI). If there is an issue with NCP512SQ13T1G, 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 NCP512SQ13T1G part is unused and in its original packaging.
Return procedure for NCP512SQ13T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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