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onsemi NCP4620HSQ15T1G
- Part No.:
- NCP4620HSQ15T1G
- Manufacturer:
- onsemi
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
NCP4620HSQ15T1G.pdf
- Description:
- IC REG LINEAR 1.5V 150MA SC88A
- Quantity:
- Payment:
- Shipping:
Inventory:3,108
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Product details
Overview
NCP4620HSQ15T1G from onsemi is a 150 mA, 1.5 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 control - used in battery-powered portable electronics requiring stable low-noise supply.
For engineers reviewing the NCP4620HSQ15T1G datasheet, pinout, applications, or equivalent options, key selection criteria include guaranteed 150 mA output at 1.5 V, thermal shutdown (165°C), current fold-back protection, ceramic-capacitor stability, and SC-70 footprint compatibility for space-constrained designs.
Technical Context
The NCP4620HSQ15T1G implements a CMOS-based LDO architecture with internal reference, error amplifier, and P-channel pass transistor - enabling low quiescent current (23 µA) and high PSRR (70 dB @ 1 kHz). Its CE pin accepts TTL/CMOS logic-level enable (VCEH = 1.7 V min) and features internal pull-down (0.3 µA).
It delivers stable 1.5 V output across −40°C to +85°C ambient, with ±80 ppm/°C temperature coefficient and load regulation of ≤40 mV from 0.1 mA to 150 mA. Dropout is 0.25 V at IOUT = 150 mA for VOUT ≥ 1.5 V, per electrical characteristics table.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5 V ±1.0% (25°C), ±2.6% over −40°C to +85°C - ensures tight rail tolerance for core logic and low-voltage sensors. |
| Max Output Current | 150 mA continuous - supports moderate-power microcontrollers, RF front-ends, and analog signal chains. |
| Dropout Voltage | 250 mV @ 150 mA (1.5 V version) - enables operation from single Li-ion (3.0–4.2 V) or dual-cell NiMH (2.4–3.0 V) sources. |
| Quiescent Current | 23 µA typical - extends battery life in always-on or low-duty-cycle IoT endpoints. |
| PSRR | 70 dB @ 1 kHz - suppresses switching noise from upstream DC-DC converters feeding the LDO input. |
| Thermal Shutdown | Activates at 165°C junction temperature, releases at 110°C - prevents permanent damage during overload or poor PCB thermal design. |
| Package | SC-70-5 (Case 419A-02), 2.2 × 1.35 × 0.9 mm - ultra-small footprint for wearables and compact modules. |
Pinout & Package
SC-70-5 package (Case 419A-02) with 0.65 mm pitch; exposed pad not present; RoHS-compliant, Pb-free construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Input supply connection | Accepts 2.6–10 V; requires local 1 µF ceramic decoupling; high-impedance path when CE = low. |
| GND (Pin 2) | Ground reference | Common return for VIN, VOUT, and CE; must be low-inductance connection to minimize noise coupling. |
| CE (Pin 3) | Chip enable input | Active-high logic control (VCEH ≥ 1.7 V); internal 0.3 µA pull-down allows direct tie to VIN if unused. |
| VOUT (Pin 5) | Regulated output | Delivers 1.5 V ±1% to load; requires 1 µF ceramic capacitor placed adjacent to pin for stability and transient response. |
| NC (Pin 4) | No connection | Internally unconnected; must remain floating - no external bias or routing permitted. |
Key Features
| Feature | Design Value |
|---|---|
| Low dropout voltage | 250 mV @ 150 mA enables >90% efficiency at 1.5 V output from 2-cell alkaline or single Li-ion input. |
| Ceramic capacitor stability | Stable with ≥1 µF X5R/X7R ceramic output cap - eliminates need for larger, higher-ESR tantalum or aluminum electrolytics. |
| Thermal & current protection | Integrated thermal shutdown (165°C) and fold-back current limiting prevent failure under short-circuit or overheating conditions. |
| Ultra-low quiescent current | 23 µA operating current minimizes standby power loss - critical for coin-cell or energy-harvesting applications. |
| High PSRR | 70 dB rejection at 1 kHz reduces ripple from noisy switchers, improving ADC reference and RF circuit performance. |
Applications
| Wearable Health Sensors | IoT Edge Node Microcontroller Supply |
|---|---|
|
Use Scenario: Powering optical heart-rate sensor ICs and ultra-low-power MCUs in wrist-worn devices. IC Role / Device Role / Timing Role: Primary 1.5 V supply rail for analog front-end and digital core; provides clean, low-noise bias independent of battery voltage sag. Use Value: 23 µA quiescent current extends coin-cell life beyond 1 year; ±1.0% accuracy ensures consistent ADC conversion and sensor calibration. |
Use Scenario: Regulating power for ARM Cortex-M0+ MCU and BLE radio in battery-operated environmental monitors. IC Role / Device Role / Timing Role: Fixed 1.5 V LDO delivering regulated supply during active transmit bursts and deep-sleep modes. Use Value: 150 mA capability supports peak BLE transmit current; CE pin enables synchronized power gating to reduce system-wide leakage. |
| Portable Audio DAC/Codec Bias | Industrial Sensor Signal Conditioning |
|
Use Scenario: Providing low-noise analog supply to 16-bit audio DACs in Bluetooth headphones and voice assistants. IC Role / Device Role / Timing Role: Low-ripple 1.5 V source for DAC reference and analog output stage - directly impacts THD+N performance. Use Value: 70 dB PSRR at 1 kHz attenuates switching noise from PMIC; 90 µVRMS output noise preserves dynamic range. |
Use Scenario: Powering precision op-amps and 24-bit sigma-delta ADCs in handheld test equipment and field transmitters. IC Role / Device Role / Timing Role: Stable 1.5 V reference rail for instrumentation amplifiers and ADC voltage references. Use Value: ±80 ppm/°C tempco and ±2.6% full-temperature accuracy maintain measurement linearity across industrial temperature ranges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-1502E/TT | 150 mA, 1.5 V, SOT-23-5; 1.6 µA quiescent current but only 100 mA max output; no CE pin. | Limited to ultra-low-IQ applications below 100 mA; unsuitable for BLE burst loads or higher-current analog circuits. | Select only when sub-2 µA standby dominates design priority and output current ≤100 mA. |
| Torex XC6206P152MR-G | 150 mA, 1.5 V, SOT-23-5; 1 µA IQ, but 300 mV dropout @ 150 mA and no thermal shutdown. | Higher dropout limits usable input range; absence of thermal protection increases risk in enclosed enclosures or high ambient. | Prefer only in thermally benign environments where lowest possible IQ justifies reduced safety margin. |
Compared with MCP1700T-1502E/TT and XC6206P152MR-G, the NCP4620HSQ15T1G uniquely balances 150 mA delivery, integrated CE control, thermal shutdown, and SC-70 size - making it optimal for compact, battery-powered systems needing robustness and moderate current.
Availability
NCP4620HSQ15T1G is available at Aetrix Electronics and suitable for wearable health sensors, IoT edge node microcontroller supply, portable audio DAC bias, and industrial sensor signal conditioning requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for NCP4620HSQ15T1G 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 NCP4620HSQ15T1G belongs to the NCP4620 family of low-quiescent-current LDOs designed specifically for space-constrained, battery-powered portable electronics demanding high accuracy, low noise, and reliable protection features.
FAQ
What is the maximum input voltage rating for the NCP4620HSQ15T1G?
The NCP4620HSQ15T1G has an absolute maximum input voltage of 12.0 V, but its recommended operating input range is 2.6 V to 10.0 V. Exceeding 10 V may degrade long-term reliability or trigger overvoltage stress not covered by warranty. The device is optimized for single- or dual-cell battery inputs, not wide-input industrial rails.
Does the NCP4620HSQ15T1G require an external capacitor on the CE pin for noise immunity?
No, the NCP4620HSQ15T1G does not require an external capacitor on the CE pin. Its CE input has built-in hysteresis and is specified to operate reliably with standard PCB traces. However, if routed near noisy signals (e.g., switching node), a small 100 pF ceramic capacitor to ground may improve noise immunity - though not required per datasheet.
Can the NCP4620HSQ15T1G be used with a 10 µF ceramic output capacitor?
Yes, the NCP4620HSQ15T1G is stable with ceramic capacitors from 1 µF to 10 µF (X5R/X7R). Larger values improve load transient response and reduce output ripple, but do not affect stability. Avoid high-ESR types like tantalum unless verified with phase-margin simulation.
What is the thermal resistance (RJA) of the NCP4620HSQ15T1G in its SC-70 package?
The NCP4620HSQ15T1G in SC-70 package has a thermal resistance RJA of 263°C/W under standard JEDEC test conditions (1s² copper pad, no airflow). Actual board-level RJA depends on PCB copper area and layer count - doubling the thermal pad size can reduce RJA by ~25°C/W.
Is the NC pin (Pin 4) on the NCP4620HSQ15T1G electrically isolated or internally tied to ground?
The NC pin (Pin 4) on the NCP4620HSQ15T1G is electrically isolated - it is not connected to any internal circuitry. Per the datasheet pin function table, it must remain unconnected and floating. Routing or soldering this pin risks mechanical stress or unintended coupling; leave it unpopulated and unconnected on the PCB.
NCP4620HSQ15T1G 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):
- 1.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1.1V @ 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)
NCP4620HSQ15T1G FAQ
1.How can I place an order for NCP4620HSQ15T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP4620HSQ15T1G 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 NCP4620HSQ15T1G reliable?
The price and inventory of NCP4620HSQ15T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP4620HSQ15T1G is usually 5 days.
3.What payment methods are accepted for NCP4620HSQ15T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP4620HSQ15T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP4620HSQ15T1G?
NCP4620HSQ15T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP4620HSQ15T1G 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 NCP4620HSQ15T1G?
For technical support, including NCP4620HSQ15T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP4620HSQ15T1G requirements.
6.How does Aetrix verify that NCP4620HSQ15T1G is sourced from the original manufacturer or authorized distributors?
All NCP4620HSQ15T1G 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 NCP4620HSQ15T1G meets industry standards.
7.What is the process for return or replacement of NCP4620HSQ15T1G?
All NCP4620HSQ15T1G units undergo pre-shipment inspection (PSI). If there is an issue with NCP4620HSQ15T1G, 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 NCP4620HSQ15T1G part is unused and in its original packaging.
Return procedure for NCP4620HSQ15T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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