My Inquiry
My Account
onsemi NCP511SN50T1G
- Part No.:
- NCP511SN50T1G
- Manufacturer:
- onsemi
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
NCP511SN50T1G.pdf
- Description:
- IC REG LINEAR 5V 150MA 5TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,800
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
NCP511SN50T1G from onsemi is a fixed-output, low-dropout linear voltage regulator delivering 5.0 V at up to 150 mA with ultra-low quiescent current (40 µA typical), 100 mV dropout at 100 mA, and ±2.0% output voltage accuracy - designed for battery-powered portable instrumentation requiring stable low-power biasing.
For engineers reviewing the NCP511SN50T1G datasheet, pinout, applications, or equivalent options, key selection criteria include dropout performance at light-to-moderate load, thermal shutdown behavior, enable threshold compatibility with 1.3 V logic high, and TSOP-5 footprint suitability for space-constrained handheld designs.
Technical Context
The NCP511SN50T1G integrates a PMOS pass transistor, precision voltage reference, error amplifier, and protection circuitry (current limit and thermal shutdown) in a single monolithic IC. It operates from 5.3 V to 6.0 V input (for 5.0 V output), with internal regulation maintaining output within ±2.0% across −40°C to +85°C ambient.
Enable control is active-high with 1.3 V turn-on threshold and 0.3 V turn-off threshold; pin 4 is no-connect (N/C). Ground pin current includes both quiescent and load-dependent components, enabling accurate power budgeting in ultra-low-power systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.0 V ±2.0% (1.455–5.100 V over temperature and load) |
| Max Output Current | 150 mA (guaranteed with ≥3% output drop margin) |
| Dropout Voltage | 75 mV typical at 100 mA (enables operation with Vin as low as 5.075 V) |
| Quiescent Current | 40 µA typical (enables >1-year battery life in 1 µA standby systems) |
| Line Regulation | 1.0 mV/V (ensures <10 mV output shift over full 5.3–6.0 V input range) |
| Thermal Shutdown | Activates at ~160°C junction (protects against sustained overload or poor PCB thermal design) |
| Operating Temp | −40°C to +85°C (industrial-grade rating; not automotive-qualified) |
Pinout & Package
The NCP511SN50T1G is housed in a Pb-free TSOP-5 surface-mount package (3.00 × 1.50 × 0.95 mm, 0.95 mm pitch), optimized for compact portable layouts and compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Vin | Positive input supply (max 6.0 V); requires 1.0 µF ceramic decoupling adjacent to pin) |
| 2 | GND | Power ground reference; carries total input current (IOUT + IQ) |
| 3 | Enable | Active-high digital control (1.3 V min logic high); tie to Vin if unused |
| 4 | N/C | No internal connection - must remain unconnected per datasheet |
| 5 | Vout | Regulated 5.0 V output; requires ≥1.0 µF ceramic capacitor (low-ESR preferred) |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 40 µA typical enables multi-year battery life in always-on sensors and meters |
| Low dropout at full load | 75 mV at 100 mA allows operation from single Li-ion cell (≥5.075 V) or 5 V rail with minimal headroom |
| Stable with ceramic capacitors | Zero ESR requirement eliminates need for tantalum; supports 1.0–10 µF ceramic output caps |
| Integrated protection | Current limit (800 mA typ) and thermal shutdown prevent damage during fault conditions |
| Precision output accuracy | ±2.0% over temperature ensures reliable logic-level compliance for 5 V microcontrollers and analog front-ends |
Applications
| Portable Medical Sensors | Handheld Test Meters |
|---|---|
Use Scenario: Battery-powered pulse oximeter with optical front-end and BLE radio. IC Role / Device Role / Timing Role: Primary 5 V bias regulator for analog signal chain and MCU core logic. Use Value: 40 µA quiescent current extends AA/AAA battery life beyond 18 months in sleep mode; 75 mV dropout maintains regulation as battery discharges to 5.075 V. |
Use Scenario: Pocket-sized multimeter with LCD display, ADC, and auto-ranging circuitry. IC Role / Device Role / Timing Role: Stable 5 V supply for precision 16-bit ADC reference and microcontroller I/O. Use Value: ±2.0% output accuracy ensures consistent measurement calibration across −10°C to +50°C operating range; TSOP-5 footprint saves board area in slim enclosure. |
| Wireless IoT Edge Nodes | Industrial Handheld Scanners |
Use Scenario: LoRaWAN sensor node monitoring temperature/humidity with intermittent transmission. IC Role / Device Role / Timing Role: Low-noise 5 V rail for RF transceiver and sensor interface ASIC. Use Value: 110 µVRMS output noise (20 Hz–100 kHz) prevents RF desense; enable pin allows synchronized power gating during deep-sleep cycles. |
Use Scenario: Rugged barcode scanner used in warehouse environments with frequent drop events. IC Role / Device Role / Timing Role: Main 5 V regulator powering CMOS image sensor, laser driver, and decode processor. Use Value: Thermal shutdown (160°C) protects against overheating during extended scanning bursts; −40°C to +85°C rating ensures reliability in unconditioned storage and operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-5002E/TT | 250 mA max output, 1.6 µA quiescent current, SOT-23-3 package (no enable) | Lacks enable control and thermal shutdown; better for ultra-low-IQ but less robust under fault | Choose when lowest possible standby current is critical and enable/control is handled externally |
| TLS850B2TE/V33 | 500 mA output, integrated watchdog, AEC-Q100 Grade 2, PG-SCT595-5 package | Automotive-qualified with supervision features; higher cost and larger footprint | Choose only for automotive or safety-critical industrial systems requiring reset supervision |
Compared with MCP1700T-5002E/TT, the NCP511SN50T1G provides enable control and thermal protection at lower cost; versus TLS850B2TE/V33, it offers smaller size and lower price but lacks watchdog and automotive qualification.
Availability
NCP511SN50T1G is available at Aetrix Electronics and suitable for portable medical sensors, handheld test meters, wireless IoT edge nodes, and industrial handheld scanners requiring stable component supply with tight output tolerance and low quiescent current.
Supply support for NCP511SN50T1G 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, with leadership in power management, analog, and sensing technologies.
The NCP511 series belongs to onsemi's low-power linear regulator product line, engineered specifically for battery-operated portable equipment where ultra-low quiescent current and small footprint are essential.
FAQ
What is the maximum input voltage for the NCP511SN50T1G?
The NCP511SN50T1G has an absolute maximum input voltage of 6.0 V. Operation above this level risks permanent damage. For reliable 5.0 V output, minimum recommended input is 5.075 V (to accommodate 75 mV dropout at 100 mA), and typical operating range is 5.3 V to 6.0 V.
Does the NCP511SN50T1G require an external capacitor on the Enable pin?
No, the NCP511SN50T1G does not require an external capacitor on the Enable pin. The Enable input is CMOS-compatible with 1.3 V logic-high threshold and 0.3 V logic-low threshold. If unused, it must be tied directly to Vin per datasheet guidance - adding capacitance may cause unintended delay or instability.
Can the NCP511SN50T1G be used with a 10 µF ceramic output capacitor?
Yes, the NCP511SN50T1G is stable with ceramic output capacitors ranging from 1.0 µF to 10 µF, including 10 µF X7R types. Larger values improve load transient response and noise rejection without compromising stability - no ESR requirements apply.
Is the NCP511SN50T1G qualified for automotive applications?
No, the NCP511SN50T1G is not automotive-qualified. It is rated for industrial temperature range (−40°C to +85°C) and carries no AEC-Q100 certification. For automotive use, select the NCV511SN50T1G variant, which is AEC-Q100 qualified and PPAP capable.
What is the thermal resistance (RJA) of the NCP511SN50T1G in its TSOP-5 package?
The NCP511SN50T1G has a specified thermal resistance of 250°C/W (junction-to-ambient, RJA) in the TSOP-5 package under standard JEDEC test conditions. Actual RJA depends heavily on PCB copper area and layout; doubling the thermal pad copper can reduce RJA by ~30–50°C/W.
NCP511SN50T1G 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):
- 5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.2V @ 100mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 40 µA
- Current - Supply (Max):
- 100 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:
- 5-TSOP
NCP511SN50T1G FAQ
1.How can I place an order for NCP511SN50T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP511SN50T1G 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 NCP511SN50T1G reliable?
The price and inventory of NCP511SN50T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP511SN50T1G is usually 5 days.
3.What payment methods are accepted for NCP511SN50T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP511SN50T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP511SN50T1G?
NCP511SN50T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP511SN50T1G 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 NCP511SN50T1G?
For technical support, including NCP511SN50T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP511SN50T1G requirements.
6.How does Aetrix verify that NCP511SN50T1G is sourced from the original manufacturer or authorized distributors?
All NCP511SN50T1G 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 NCP511SN50T1G meets industry standards.
7.What is the process for return or replacement of NCP511SN50T1G?
All NCP511SN50T1G units undergo pre-shipment inspection (PSI). If there is an issue with NCP511SN50T1G, 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 NCP511SN50T1G part is unused and in its original packaging.
Return procedure for NCP511SN50T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NCP511SN50T1G Tags
-
MIC5504-1.8YM5-TR
Microchip Technology
-
MIC5504-3.3YM5-TR
Microchip Technology
-
MIC5365-3.0YC5-TR
Microchip Technology
-
MIC5365-1.8YC5-TR
Microchip Technology
-
MIC5365-2.5YC5-TR
Microchip Technology
-
MIC5365-3.3YC5-TR
Microchip Technology
-
MIC5365-3.3YD5-TR
Microchip Technology
-
MIC5317-3.3YM5-TR
Microchip Technology
-
TLV1117LV33DCYR
Texas Instruments
-
MIC5317-3.3YMT-TZ
Microchip Technology
-
MIC5528-3.3YMT-TR
Microchip Technology
-
TLV75801PDRVR
Texas Instruments
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
