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onsemi NCP4620HSQ12T1G
- Part No.:
- NCP4620HSQ12T1G
- Manufacturer:
- onsemi
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
NCP4620HSQ12T1G.pdf
- Description:
- IC REG LINEAR 1.2V 150MA SC88A
- Quantity:
- Payment:
- Shipping:
Inventory:4,539
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Product details
Overview
NCP4620HSQ12T1G from onsemi is a 150 mA, 1.2 V fixed-output CMOS low-dropout linear regulator in SC-70-5 package, operating from 2.6 V to 10 V input, with ±1.0% output voltage accuracy, 165 mV dropout at 100 mA (3.3 V version), and chip enable functionality for power management in space-constrained portable electronics.
For engineers reviewing the NCP4620HSQ12T1G datasheet, pinout, applications, or equivalent options, key selection criteria include its 1.2 V fixed output, SC-70-5 footprint compatibility, thermal shutdown (165°C), current fold-back protection, and stable operation with ceramic capacitors - critical for battery-powered imaging and communication subsystems.
Technical Context
The NCP4620HSQ12T1G implements a CMOS-based LDO architecture with an internal N-channel pass transistor, enabling low quiescent current (23 µA) and high PSRR (70 dB at 1 kHz). Its CE pin operates with active-high logic (VCEH = 1.7 V min) and internal pull-down current (0.3 µA), supporting controlled power sequencing.
Thermal regulation is achieved via a dedicated shutdown circuit triggering at 165°C junction temperature and releasing at 110°C, while output stability requires only 0.47 µF ceramic capacitors on both input and output - eliminating need for tantalum or electrolytic types.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.2 V ±1.0% over −40°C to +85°C - ensures precise core voltage for low-power microcontrollers and sensors. |
| Max Output Current | 150 mA continuous - sufficient for powering single-core MCUs, camera modules, or RF transceivers in compact devices. |
| Dropout Voltage | 400 mV at 150 mA (for 1.2 V output) - enables operation from 2-cell Li-ion (nominal 7.4 V, sag to ~6 V) with margin. |
| Quiescent Current | 23 µA typical - extends battery life in always-on monitoring circuits without compromising startup time. |
| PSRR | 70 dB at 1 kHz - suppresses switching noise from DC-DC converters feeding the LDO input rail. |
| Operating Input Range | 2.6 V to 10 V - supports direct connection to USB (5 V), 2S Li-ion (up to 8.4 V), or industrial 9 V supplies. |
| Thermal Shutdown | Triggers at 165°C junction temperature - protects against sustained overload or poor PCB thermal design. |
Pinout & Package
Package: SC-70-5 (Case 419A−02), 1.80 × 1.15 × 0.80 mm body, 0.65 mm pitch, Pb-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (SC-70) | VIN | Main input supply pin - connect to bulk decoupling capacitor (≥1 µF ceramic) within 2 mm of pin. |
| 2 (SC-70) | GND | Analog/digital ground reference - tie directly to low-impedance ground plane under IC footprint. |
| 3 (SC-70) | CE | Active-high chip enable - drive ≥1.7 V to enable regulator; float or tie to VIN if always-on operation required. |
| 4 (SC-70) | NC | No connection - leave unconnected; not internally bonded or electrically used. |
| 5 (SC-70) | VOUT | Regulated 1.2 V output - place 0.47 µF ceramic capacitor ≤3 mm from pin to ensure stability and transient response. |
Key Features
| Feature | Design Value |
|---|---|
| Low Dropout Operation | 400 mV at full 150 mA load for 1.2 V output - enables higher efficiency than standard linear regulators when input voltage is close to output. |
| Ceramic Capacitor Stability | Stable with ≥0.47 µF X5R/X7R ceramic output cap - eliminates ESR requirements and reduces BOM cost vs. tantalum solutions. |
| Chip Enable Control | Active-high CE with 1.7 V threshold and 0.3 µA pull-down - simplifies power sequencing in multi-rail systems without external logic. |
| Thermal & Current Protection | Integrated thermal shutdown (165°C) and current fold-back - prevents damage during short-circuit or overheating without external components. |
| High PSRR | 70 dB at 1 kHz - maintains clean 1.2 V supply for noise-sensitive analog blocks (e.g., ADC references, PLLs) fed from noisy switchers. |
Applications
| Portable Imaging Modules | Industrial Sensor Nodes |
|---|---|
|
Use Scenario: Powering 1.2 V I/O or core rails in compact camera modules using 2S Li-ion batteries. IC Role / Device Role / Timing Role: Primary voltage regulator delivering stable 1.2 V to image sensor interface logic and embedded controller cores. Use Value: Low 23 µA quiescent current extends standby time; SC-70-5 footprint minimizes PCB area in tight optical assemblies. |
Use Scenario: Regulating power for ultra-low-power wireless sensor transceivers (e.g., BLE, LoRa) in battery-operated field nodes. IC Role / Device Role / Timing Role: Fixed 1.2 V LDO supplying MCU core and RF front-end, enabled/disabled via host microcontroller GPIO. Use Value: CE pin allows host-controlled sleep/wake cycles; ±1.0% accuracy ensures reliable ADC reference and RF synthesizer performance. |
| Set-Top Box SoC I/O Rails | Wearable Health Monitors |
|
Use Scenario: Generating clean 1.2 V supply for HDMI PHY or DDR I/O buffers in consumer STB platforms. IC Role / Device Role / Timing Role: Secondary LDO filtering noise from main PMIC output, placed near SoC ball grid. Use Value: 70 dB PSRR at 1 kHz rejects switching noise from adjacent DC-DC converters, preventing signal integrity degradation. |
Use Scenario: Powering 1.2 V analog front-end (AFE) and low-power MCU in wrist-worn ECG/PPG monitors. IC Role / Device Role / Timing Role: Precision voltage source for AFE biasing and MCU core, operating from coin-cell or small Li-po. Use Value: ±1.0% output accuracy and <±80 ppm/°C tempco maintain measurement repeatability across body-temperature range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-1202E/TT | 150 mA, 1.2 V fixed, SOT-23-3, no CE pin, 6 µA IQ, 170 mV dropout (at 100 mA) | Lacks enable control and thermal shutdown; limited to always-on, low-power roles | Choose when minimal IQ and simple layout outweigh need for power sequencing or fault protection. |
| TLC7701QDBVRQ1 | 150 mA, 1.2 V fixed, SOT-23-5, CE pin, 15 µA IQ, 300 mV dropout (at 150 mA), automotive-grade (AEC-Q100) | Higher grade qualification; slightly lower dropout but reduced PSRR (60 dB @ 1 kHz) | Prefer for automotive infotainment or ADAS modules requiring AEC-Q100 compliance and tighter thermal specs. |
Compared with MCP1700T-1202E/TT, NCP4620HSQ12T1G adds chip enable and thermal shutdown at modest IQ penalty; versus TLC7701QDBVRQ1, it trades AEC-Q100 qualification for higher PSRR and broader industrial temperature support (−40°C to +85°C).
Availability
NCP4620HSQ12T1G is available at Aetrix Electronics and suitable for portable imaging modules, industrial sensor nodes, set-top box SoC I/O rails, and wearable health monitors requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for NCP4620HSQ12T1G 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 manufacturer specializing in energy-efficient power management, analog, sensor, and connectivity solutions for automotive, industrial, cloud, and IoT markets.
The NCP4620 series belongs to onsemi's precision LDO portfolio, designed specifically for space-constrained, battery-powered applications demanding low IQ, high accuracy, and robust protection features - especially where ceramic capacitor compatibility reduces system cost and size.
FAQ
What is the output voltage tolerance of the NCP4620HSQ12T1G over temperature?
The NCP4620HSQ12T1G maintains ±1.0% output voltage accuracy at +25°C, and ±2.3% over the full −40°C to +85°C operating range. This specification is verified per the datasheet's ELECTRICAL CHARACTERISTICS table, ensuring predictable performance in consumer and industrial environments without external trimming.
Does the NCP4620HSQ12T1G require an external capacitor on the CE pin?
No, the NCP4620HSQ12T1G does not require an external capacitor on the CE pin. Its CE input has an internal pull-down current source (0.3 µA), and the pin is compatible with standard CMOS logic levels. For noise immunity in high-EMI environments, a 100 pF capacitor to ground may be added, but it is not specified or required in the datasheet.
Can the NCP4620HSQ12T1G operate with a 2.5 V input supply?
Yes, the NCP4620HSQ12T1G supports input voltages down to 2.6 V minimum per datasheet Absolute Maximum Ratings and Electrical Characteristics. At 2.5 V input, the device will not regulate - it requires ≥2.6 V to maintain 1.2 V output. For 2.5 V input applications, consider a lower-VIN LDO such as the AP2112K-1.2.
Is the NC pin on the NCP4620HSQ12T1G internally connected?
No, the NC (pin 4) on the NCP4620HSQ12T1G is not internally connected - it is a no-connect terminal per the Pin Function Description table in the datasheet. It must remain unconnected on the PCB; routing traces or vias to this pin may cause mechanical stress or unintended coupling.
What is the maximum power dissipation of the NCP4620HSQ12T1G in SC-70 package?
The NCP4620HSQ12T1G in SC-70 package has a maximum power dissipation of 380 mW at +25°C ambient, based on its thermal resistance (RJA = 263°C/W) and maximum junction temperature (TJ = +150°C). Derating is required above +25°C ambient - e.g., ~280 mW at +50°C ambient - per the Thermal Characteristics section.
NCP4620HSQ12T1G 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):
- 10V
- Voltage - Output (Min/Fixed):
- 1.2V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1.4V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 40 µA
- Current - Supply (Max):
- -
- PSRR:
- 70dB (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)
NCP4620HSQ12T1G FAQ
1.How can I place an order for NCP4620HSQ12T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP4620HSQ12T1G 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 NCP4620HSQ12T1G reliable?
The price and inventory of NCP4620HSQ12T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP4620HSQ12T1G is usually 5 days.
3.What payment methods are accepted for NCP4620HSQ12T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP4620HSQ12T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP4620HSQ12T1G?
NCP4620HSQ12T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP4620HSQ12T1G 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 NCP4620HSQ12T1G?
For technical support, including NCP4620HSQ12T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP4620HSQ12T1G requirements.
6.How does Aetrix verify that NCP4620HSQ12T1G is sourced from the original manufacturer or authorized distributors?
All NCP4620HSQ12T1G 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 NCP4620HSQ12T1G meets industry standards.
7.What is the process for return or replacement of NCP4620HSQ12T1G?
All NCP4620HSQ12T1G units undergo pre-shipment inspection (PSI). If there is an issue with NCP4620HSQ12T1G, 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 NCP4620HSQ12T1G part is unused and in its original packaging.
Return procedure for NCP4620HSQ12T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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