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onsemi NCP720BMT160TBG
- Part No.:
- NCP720BMT160TBG
- Manufacturer:
- onsemi
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
NCP720BMT160TBG.pdf
- Description:
- IC REG LINEAR 1.6V 350MA 6WDFN
- Quantity:
- Payment:
- Shipping:
Inventory:27,000
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Product details
Overview
NCP720BMT160TBG from onsemi is a 350 mA very low dropout (VLDO) CMOS voltage regulator with NMOS pass transistor and separate VBIAS supply, delivering 1.60 V fixed output with ±2% accuracy over −40°C to +125°C, 110 mV typical dropout at full load, and ultra-low 80 µA bias current - designed for noise-sensitive, space-constrained portable electronics including smartphones and cameras.
For engineers reviewing the NCP720BMT160TBG datasheet, pinout, applications, or equivalent options, key selection considerations include dual-rail operation (VIN/VBIAS), monotonic soft-start, PSRR >65 dB at 1 kHz, stability with 2.2 µF ceramic output capacitor, and WDFN6 thermal pad grounding requirements.
Technical Context
The NCP720BMT160TBG implements a dual-input NMOS-based VLDO architecture where VIN supplies the pass element and VBIAS powers internal control circuitry - enabling independent optimization of input headroom and bias rail efficiency. Its UVLO monitors VBIAS with 1.6 V turn-on threshold and 0.2 V hysteresis, while thermal shutdown activates at +160°C and resets at +140°C.
Unlike PMOS LDOs, this topology decouples loop stability from output capacitance value, allowing stable operation with small 2.2 µF ceramic capacitors. The built-in soft-start ensures monotonic VOUT rise to limit inrush current, and enable logic supports direct connection to VIN or VBIAS when unused.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.60 V - factory-programmed, no external feedback required |
| Max Output Current | 350 mA continuous - supports high-current I/O rails in mobile SoC power domains |
| VIN Dropout | 110 mV typical at 350 mA - enables regulation down to VIN = 1.71 V for 1.60 V output |
| VBIAS Range | 2.4 V to 5.5 V - allows use of shared system bias rail or dedicated low-noise supply |
| PSRR @ 1 kHz | 65 dB (VIN), 70 dB (VBIAS) - suppresses switching noise from adjacent DC/DC converters |
| Output Noise | 40 µVRMS (10 Hz–100 kHz) - suitable for RF, camera sensor, and ADC reference supplies |
| Shutdown Current | 0.5 µA typical - minimizes battery drain in standby mode for portable devices |
Pinout & Package
Package: WDFN6 (2 mm × 2 mm, 0.65 mm pitch, Case 511BR) with exposed thermal pad - requires soldering to PCB ground plane for RJA = 65°C/W thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT | Regulated output | Delivers stable 1.60 V to load; connects directly to ceramic capacitor (2.2 µF min) |
| 2 - N/C | No internal connection | Must remain unconnected; no routing or copper fill allowed |
| 3 - EN | Enable control input | Active-high logic (VEN(HI) = 1.1 V min); internal hysteresis prevents chatter during slow transitions |
| 4 - BIAS | Bias supply input | Powers internal reference and control circuits; monitored by UVLO (1.6 V threshold) |
| 5 - GND | Power ground | Common return for IN, OUT, BIAS, and EN; must connect to thermal pad |
| 6 - IN | Main input supply | Feeds NMOS pass transistor; supports 0.8 V to 5.5 V range with low dropout operation |
Key Features
| Feature | Design Value |
|---|---|
| Dual-rail NMOS architecture | Separates power path (VIN→OUT) from control domain (VBIAS), improving PSRR and reducing sensitivity to output capacitor ESR |
| Monotonic soft-start | Guarantees controlled 140 µs startup time to 95% VOUT without output overshoot or undershoot |
| Ultra-low bias current | 80 µA typical across load and temperature - extends battery life in always-on bias rails |
| Stable with minimal capacitance | Operates reliably with 2.2 µF ceramic output capacitor - reduces BOM count and board area vs. larger electrolytics |
| Integrated thermal protection | Auto-recovering shutdown at +160°C junction temperature - prevents permanent damage during transient overload |
Applications
| Smartphone Core Logic Rail | Tablet Camera Sensor Supply |
|---|---|
Use Scenario: Powering application processor I/O banks requiring clean, tightly regulated 1.60 V under dynamic load conditions. IC Role / Device Role / Timing Role: Post-regulator for DC/DC converter output, providing low-noise, low-dropout final-stage voltage stabilization. Use Value: 40 µVRMS output noise and 65 dB PSRR at 1 kHz prevent digital switching noise from corrupting signal integrity in high-speed interfaces. | Use Scenario: Supplying image sensor analog front-end (AFE) and ADC reference circuits in compact tablet designs. IC Role / Device Role / Timing Role: Low-noise bias rail generator isolated from noisy system power domains via separate VBIAS input. Use Value: Dual-rail architecture enables VBIAS sourcing from quiet LDO while VIN taps noisy buck converter, achieving >70 dB PSRR on bias path. |
| Portable DVR Memory Interface | STB HDMI Transceiver Core |
Use Scenario: Delivering stable 1.60 V to LPDDR2/LPDDR3 memory I/O buffers in battery-powered digital video recorders. IC Role / Device Role / Timing Role: Load-transient-optimized linear regulator with fast response to sudden current steps (e.g., burst read/write). Use Value: 110 mV dropout enables operation from partially discharged batteries (down to ~1.71 V VIN), extending usable runtime. | Use Scenario: Powering HDMI transmitter PHY core logic in set-top boxes where EMI compliance and signal integrity are critical. IC Role / Device Role / Timing Role: Ultra-low-noise post-regulator placed close to HDMI IC to minimize supply-induced jitter. Use Value: 2.2 µF ceramic capacitor compatibility eliminates need for bulky tantalum caps, supporting ultra-thin STB mechanical designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-noise, dual-rail LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7A2025PDQNR | Single-rail (VIN only), 250 mA, 1.6 V fixed, 125 mV dropout, 68 dB PSRR @ 1 kHz | Lacks VBIAS input - cannot isolate control circuitry from noisy input rails | Choose when system has only one clean input rail and lower current suffices |
| MCP1826T-1602E/DB | Single-rail, 500 mA, 1.6 V fixed, 200 mV dropout, 55 dB PSRR @ 1 kHz, no soft-start | Higher dropout and lower PSRR reduce battery efficiency and noise immunity in sensitive analog paths | Choose when higher output current is required and thermal margin allows larger dropout |
Compared with TPS7A2025PDQNR and MCP1826T-1602E/DB, the NCP720BMT160TBG uniquely delivers dual-rail operation, 110 mV dropout, and 70 dB VBIAS PSRR - making it optimal for systems requiring independent noise isolation between power and control domains.
Availability
NCP720BMT160TBG is available at Aetrix Electronics and suitable for smartphone core logic rails, tablet camera sensor supplies, and portable DVR memory interfaces requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for NCP720BMT160TBG 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, offering power management, analog, sensing, and connectivity solutions for automotive, industrial, and consumer markets.
The NCP720 series belongs to onsemi's precision low-dropout regulator product line, engineered specifically for battery-powered portable devices demanding ultra-low noise, dual-rail flexibility, and minimal PCB footprint.
FAQ
What is the nominal output voltage of the NCP720BMT160TBG?
The NCP720BMT160TBG is factory-programmed to deliver a fixed 1.60 V output voltage with ±2% accuracy across −40°C to +125°C junction temperature. This value is laser-trimmed during production and does not require external resistors or configuration - simplifying design and reducing component count in space-constrained layouts.
Does the NCP720BMT160TBG require an external feedback network?
No, the NCP720BMT160TBG is a fixed-output voltage regulator with internally trimmed reference - no external feedback resistors are needed. Its 1.60 V output is set at wafer test and verified per device marking code "JP", eliminating layout complexity and potential tolerance errors associated with adjustable LDOs.
What are the minimum and maximum allowable VBIAS voltages for the NCP720BMT160TBG?
The NCP720BMT160TBG accepts VBIAS from 2.4 V to 5.5 V. Operation below 2.4 V triggers UVLO shutdown; above 5.5 V exceeds absolute maximum rating and risks damage. For optimal performance at 1.60 V output, VBIAS should be ≥ (VOUT + 1.4 V) = 3.0 V, as specified in electrical characteristics.
Can the NCP720BMT160TBG operate with only the IN pin powered and BIAS left unconnected?
No - the NCP720BMT160TBG requires both IN and BIAS to be within specification for normal operation. The BIAS pin supplies internal reference and control circuitry; leaving it unconnected disables regulation. If a single supply is available, it may be routed to both IN and BIAS, provided voltage meets both VIN and VBIAS ranges.
Is the thermal pad on the WDFN6 package of the NCP720BMT160TBG electrically connected?
Yes, the exposed thermal pad on the NCP720BMT160TBG's WDFN6 package is internally connected to GND. It must be soldered to a PCB ground plane to achieve the specified RJA = 65°C/W and ensure reliable thermal performance - floating or unconnected pads will cause excessive junction temperature rise and premature thermal shutdown.
NCP720BMT160TBG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 6-WDFN Exposed Pad
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.6V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1.4V @ 350mA
- Current - Output:
- 350mA
- Current - Quiescent (Iq):
- -
- Current - Supply (Max):
- -
- PSRR:
- 65dB ~ 25dB (1kHz ~ 1MHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Under Voltage Lockout (UVLO)
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-WDFN (2x2)
NCP720BMT160TBG FAQ
1.How can I place an order for NCP720BMT160TBG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP720BMT160TBG 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 NCP720BMT160TBG reliable?
The price and inventory of NCP720BMT160TBG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP720BMT160TBG is usually 5 days.
3.What payment methods are accepted for NCP720BMT160TBG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP720BMT160TBG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP720BMT160TBG?
NCP720BMT160TBG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP720BMT160TBG 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 NCP720BMT160TBG?
For technical support, including NCP720BMT160TBG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP720BMT160TBG requirements.
6.How does Aetrix verify that NCP720BMT160TBG is sourced from the original manufacturer or authorized distributors?
All NCP720BMT160TBG 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 NCP720BMT160TBG meets industry standards.
7.What is the process for return or replacement of NCP720BMT160TBG?
All NCP720BMT160TBG units undergo pre-shipment inspection (PSI). If there is an issue with NCP720BMT160TBG, 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 NCP720BMT160TBG part is unused and in its original packaging.
Return procedure for NCP720BMT160TBG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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