NC2650 Series
Ultra-low Quiescent Current (IQVIN = 85nA) 1A Step-down Switching Regulator
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Provides at-a-glance product features, functions, and concepts.
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Description
The NC2650 is a synchronous rectification stepdown switching regulator using CMOS-based with PWM/PFM automatic alternating function. This product achieves ultra-low power consumption of only 85 nA in quiescent current, so it is ideal for battery-powered portable devices such as wearable devices and IoT devices. Because it exhibits high efficiency under light load conditions, it extends battery life in intermittent operation applications and allows the use of a small inductor (0.47μH), contributing to space savings. It also achieves low ripple voltage and fast load transient response, providing stable power quality. Shutdown function is possible by switching the EN pin and auto-discharge can be selected, so that enables flexible power supply design.
Spec
| Standard | |
|---|---|
| Input Voltage Range | 1.8 V to 5.5 V (6.5 V) |
| Operating Temperature Range | Ta=-40°C to 85°C, Tj=-40°C to 125°C |
| Supply Current | Typ. 85 nA |
| Standby Current | Typ. 4 nA (Shutdown Current) |
| Output Voltage Range | 0.8 V to 3.3 V (0.1 V step) |
| Output Voltage Accuracy | ±1.0% (VSET ≥ 1.2V), ±1.5% (VSET < 1.2V) |
| Output Current | 1000 mA |
| Driver ON-resistance | PMOS: Typ. 0.15 Ω, NMOS: Typ. 0.125 Ω |
| Package | WLCSP-6-ZA2 |
| Ripple Voltage | Typ.10mVpp (IOUT=500mA) |
Protections / Functions
| TSD | OCP | OVP | UVLO | OVLO | Reverse | Shutdown | Soft Start | SSCG | PGOOD | Auto Discharge | Anti-ringing | Sequencing | Max Duty | Ext. Phase | LED Adjust |
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Functional Description
| TSD | Thermal Shutdown Function |
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| OCP | Overcurrent Protection Note: The function previously labeled as "ILX (LX Current Limit Function)" is now shown as "OCP." |
| OVP | Overvoltage Protection |
| UVLO | Undervoltage Lockout Protection |
| OVLO | Overvoltage Lockout Protection |
| Reverse | Reverse Current Protection Circuit |
| Shutdown | Shutdown Function |
| Soft Start | Soft Start Function |
| SSCG | Spread Spectrum Clock Generator Function |
| PGOOD | Power Good Output |
| Auto Discharge | Auto Discharge Function |
| Anti-ringing | Anti-ringing Switch Function |
| Sequencing | Start-up Sequencing Control |
| Max Duty | Maximum Duty Cycle |
| Ext. Phase | Externally Adjustable Phase Compensation |
| LED Adjust | LED High-speed Dimming Control |
Technical Documents
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TYPICAL APPLICATIONS
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EFFICIENCY TYPICAL CHARACTERISTICS
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Related Links
Quality & Packages
| Product Name | Compatibility | Package | Marking | Reliability |
|---|---|---|---|---|
| NC2650ZAxxxxE2S |
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WLCSP-6-ZA2 | See datasheet | NC2650ZAS |
- Refer to the datasheets for the details on the product.
- The package file or the datasheet includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.
FAQ
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Purchase, Request for samples and documentsSales are made through distributors. Please contact your local distributors for any sales-related inquiry such as price.
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Available from 1 piece!Our electronic device products are available through our authorized online distributors.
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Technical Support