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onsemi NCP706BMX300TAG
- Part No.:
- NCP706BMX300TAG
- Manufacturer:
- onsemi
- Package:
- 8-XFDFN Exposed Pad
- Datasheet:
-
NCP706BMX300TAG.pdf
- Description:
- IC REG LINEAR 3V 1A 8XDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,291
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Product details
Overview
NCP706BMX300TAG from onsemi is a 3.0 V fixed-output, 1 A very low dropout (LDO) linear voltage regulator with ±1% output accuracy over line, load, and temperature, 155 mV dropout at 1 A, and enable control-designed for Li-ion battery-powered portable electronics including smartphones and tablets.
For engineers reviewing the NCP706BMX300TAG datasheet, pinout, applications, or equivalent options, key selection criteria include dropout voltage under full load, thermal performance in XDFN8 package, active discharge absence (vs. NCP706AB), and compatibility with 2.2 µF ceramic output capacitors.
Technical Context
The NCP706BMX300TAG implements a PMOS pass transistor architecture enabling ultra-low dropout and high PSRR (58 dB @ 1 kHz). It features latched overcurrent protection triggered by sustained short-circuit events and thermal shutdown at 160°C with 20°C hysteresis.
Its dual IN pins and dedicated SNS pin support remote sensing for improved load regulation; the EN pin provides precise 0.9 V turn-on and 0.4 V shutdown thresholds, while the exposed thermal pad (electrically tied to GND) enables PCB-level heat dissipation in space-constrained layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0 V ±1% (2.97–3.03 V) across −40°C to +125°C, 0–1 A load, and 2.4–5.5 V input. |
| Max Output Current | 1 A continuous; current limit trips at 1.1 A typical, with latched OCP requiring EN toggle to reset. |
| Dropout Voltage | 155 mV at 1 A load-enables stable 3.0 V output from as low as 3.155 V input (e.g., single Li-ion at end-of-discharge). |
| PSRR | 58 dB at 1 kHz-suppresses switching noise from upstream DC-DC converters in mixed-power-rail systems. |
| Quiescent Current | 200 µA typical at zero load-minimizes battery drain in always-on subsystems. |
| Thermal Resistance | RJA = 160°C/W in XDFN8 1.6×1.2 mm package-requires thermal pad connection to PCB ground plane for >300 mW power dissipation. |
| Stability | Guaranteed with ≥2.2 µF ceramic output capacitor-eliminates need for tantalum or electrolytic types. |
Pinout & Package
Package: XDFN8 1.6 mm × 1.2 mm, 0.4 mm pitch, exposed thermal pad (Case 711AS), Pb-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 OUT | Regulated output | Dual parallel output pins reduce IR drop and improve current sharing; requires ≥2.2 µF ceramic cap to GND for stability. |
| 3 N/C | No-connect | Internally unconnected; may be tied to GND to enhance thermal conduction from die to PCB. |
| 4 SNS | Remote sense input | Connects directly to load-side VOUT to compensate for PCB trace resistance and maintain regulation accuracy at point-of-load. |
| 5 GND | Power ground | Main return path; must be low-impedance and co-located with exposed thermal pad connection. |
| 6 EN | Enable control | Active-high logic: ≥0.9 V enables regulator; ≤0.4 V disables and resets latched OCP state. |
| 7, 8 IN | Input supply | Dual input pins lower parasitic inductance; require local 2.2 µF decoupling capacitor close to pins. |
| Exposed Pad | Thermal & electrical ground | Electrically connected to GND; soldering to large PCB ground plane is mandatory for thermal reliability above ~300 mW. |
Key Features
| Feature | Design Value |
|---|---|
| Very low dropout | 155 mV at 1 A enables operation from aging Li-ion cells (≥3.155 V) without brownout. |
| Latched overcurrent protection | Prevents thermal runaway during sustained short circuits; recovery requires explicit EN toggling-not automatic retry. |
| High PSRR (58 dB @ 1 kHz) | Effectively filters ripple from noisy switchers, supporting clean power for RF, audio, and precision analog circuitry. |
| Stable with 2.2 µF ceramic output cap | Reduces BOM cost and board area vs. larger or specialized capacitors; eliminates ESR dependency. |
| Remote sense (SNS) pin | Compensates for up to ~100 mΩ of output trace resistance, maintaining ±1% accuracy at the load. |
Applications
| Smartphones | Tablets |
|---|---|
Use Scenario: Powering application processors' I/O rails or camera sensor modules from single-cell Li-ion battery. IC Role / Device Role / Timing Role: Primary 3.0 V LDO delivering regulated, low-noise supply with fast transient response to dynamic load changes. Use Value: Maintains ±1% output accuracy across battery discharge (2.4–5.5 V input) and 0–1 A load steps, preventing logic errors or sensor corruption. | Use Scenario: Supplying memory interfaces (e.g., LPDDR I/O) requiring tight voltage tolerance and low ripple. IC Role / Device Role / Timing Role: Point-of-load regulator with remote sensing to counteract PCB voltage drop between LDO and memory package. Use Value: SNS pin ensures 3.0 V ±1% is delivered *at the memory pins*, not just at the LDO output, improving signal integrity and timing margin. |
| Portable Medical Devices | Wireless Handsets |
Use Scenario: Providing stable 3.0 V bias to analog front-end (AFE) circuits in handheld ECG or pulse oximeters. IC Role / Device Role / Timing Role: Low-noise, low-quiescent-current regulator minimizing battery drain while preserving ADC reference stability. Use Value: 300 µVRMS output noise (100 Hz–100 kHz) and 200 µA IQ prevent interference with microvolt-level biomedical signals. | Use Scenario: Powering baseband ICs and RF transceivers in 4G/5G feature phones with aggressive power cycling. IC Role / Device Role / Timing Role: Enable-controlled LDO allowing rapid power gating of subsystems during sleep modes. Use Value: EN pin's 0.4 V low threshold ensures reliable disable under weak-battery conditions; shutdown current <1 µA extends standby time. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1826T-3002E/OT | 3.0 V fixed, 1 A, 300 mV dropout (vs. 155 mV), no remote sense, no latched OCP. | Suitable for less demanding battery apps where higher dropout is acceptable; lacks SNS for precision point-of-load regulation. | Select when lowest cost is priority and input voltage margin >3.3 V is guaranteed. |
| Torex XC6210B302MR-G | 3.0 V fixed, 1 A, 250 mV dropout, 25 µA IQ, no SNS, no latched OCP, smaller USP-6C package. | Better quiescent current for ultra-low-power sleep modes; insufficient dropout headroom for deep-discharge Li-ion use cases. | Select for wearables or sensors needing minimal IQ, but verify VIN ≥3.25 V at all times. |
Compared with MCP1826T-3002E/OT and XC6210B302MR-G, the NCP706BMX300TAG delivers superior dropout performance and remote sensing-critical for maintaining 3.0 V accuracy across wide input ranges and PCB resistances-while its latched OCP enhances system safety in fault-prone portable environments.
Availability
NCP706BMX300TAG is available at Aetrix Electronics and suitable for smartphones, tablets, and portable medical devices requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for NCP706BMX300TAG 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 for automotive, industrial, cloud, and IoT applications.
The NCP706B series targets portable battery-powered systems requiring high-accuracy, low-dropout regulation with robust protection-emphasizing space efficiency, thermal manageability, and compatibility with modern ceramic capacitors.
FAQ
What is the maximum input voltage rating for the NCP706BMX300TAG?
The NCP706BMX300TAG has an absolute maximum input voltage of 6 V. Operation is specified from 2.4 V to 5.5 V; exceeding 6 V risks permanent damage. The device includes undervoltage lockout (UVLO) that disables regulation below ~1.2 V to prevent erratic behavior during power-up.
Does the NCP706BMX300TAG include active output discharge?
No, the NCP706BMX300TAG does not include active output discharge. That feature is exclusive to the NCP706AB variant (e.g., NCP706ABMX300TAG). The NCP706BMX300TAG relies on natural discharge through load or external bleed resistors when disabled.
Can the NCP706BMX300TAG operate stably with a 1 µF ceramic output capacitor?
No-the NCP706BMX300TAG requires a minimum of 2.2 µF ceramic output capacitance for guaranteed stability per the datasheet. Using 1 µF may cause oscillation or poor transient response; design validation with 2.2 µF or greater is mandatory.
What is the purpose of the SNS pin on the NCP706BMX300TAG?
The SNS (sense) pin on the NCP706BMX300TAG enables remote voltage sensing at the load, compensating for voltage drop across PCB traces. It must be connected directly to the load-side VOUT node to maintain ±1% regulation accuracy at the point-of-load, not just at the LDO output pins.
How does the latched overcurrent protection work on the NCP706BMX300TAG?
When the NCP706BMX300TAG detects a sustained overcurrent (e.g., output short), it latches off and stops delivering current. Unlike auto-retry protection, recovery requires toggling the EN pin from high to low and back high-ensuring faults are acknowledged before resuming operation and preventing thermal stress.
NCP706BMX300TAG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 8-XFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.23V @ 1A
- Current - Output:
- 1A
- Current - Quiescent (Iq):
- 230 µA
- Current - Supply (Max):
- -
- PSRR:
- 65dB ~ 52dB (100Hz ~ 10kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Soft Start, Under Voltage Lockout (UVLO)
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-XDFN (1.6x1.2)
NCP706BMX300TAG FAQ
1.How can I place an order for NCP706BMX300TAG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP706BMX300TAG 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 NCP706BMX300TAG reliable?
The price and inventory of NCP706BMX300TAG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP706BMX300TAG is usually 5 days.
3.What payment methods are accepted for NCP706BMX300TAG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP706BMX300TAG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP706BMX300TAG?
NCP706BMX300TAG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP706BMX300TAG 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 NCP706BMX300TAG?
For technical support, including NCP706BMX300TAG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP706BMX300TAG requirements.
6.How does Aetrix verify that NCP706BMX300TAG is sourced from the original manufacturer or authorized distributors?
All NCP706BMX300TAG 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 NCP706BMX300TAG meets industry standards.
7.What is the process for return or replacement of NCP706BMX300TAG?
All NCP706BMX300TAG units undergo pre-shipment inspection (PSI). If there is an issue with NCP706BMX300TAG, 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 NCP706BMX300TAG part is unused and in its original packaging.
Return procedure for NCP706BMX300TAG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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