NCV8843: Buck Regulator, 1.5 A, 340 kHz, with Synchronization Capability
The NCV8843 is a 1.5 A buck regulator IC operating at a fixed frequency of 340 kHz. The device employs the V2™ control architecture to provide unmatched transient response, the best overall regulation and the simplest loop compensation. The NCV8842 accommodates input voltages from 4.0 V to 40 V and contains synchronization circuitry. The on-chip NPN transistor is capable of providing a minimum of 1.5 A of output current and is biased by an external boost capacitor to ensure saturation, thus minimizing on-chip power dissipation. Protection circuitry includes thermal shutdown, cycle-by-cycle current limiting and frequency foldback short-circuit protection.
Features- V2™ Control Architecture
- 2.0% Error Amp Reference Voltage Tolerance
- Cycle-by-Cycle Current Limiting
- Switch Frequency Decrease of 4:1 in Short Circuit
- Bootstrapped Operation (BOOST)
- Synchronization to External Clock (SYNC)
- 1.0 A Shutdown Quiescent Current
- Thermal Shutdown
- Soft-Start
- Pb-Free Packages are Available
| Benefits- Ultra-fast Transient Response, Improved Regulation and Simplified Design
- Tight Output Regulation
- Limits Switch and Inductor Current
- Reduces Short Circuit Power Dissipation
- Increased Efficiency and Minimized On-Chip Power Dissipation
- Synchronization to External Clock (SYNC)
- Minimize Current Consumption when SHDNB is Asserted
- Protect IC from Over-Temperature
- Decrease Inrush Current and Minimize Output Over-shoot During Start-Up
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Data Sheets (1)
Evaluation Board Documents (4)
Package Drawings (3)
Evaluation/Development Tool Information
| Product | Status | Compliance | Short Description |
|---|
| NCV8843MNR2GEVB | Active | Pb-free | Buck Regulator Demonstration Evaluation Board |
Order Information
| Product | Status | Compliance | Package | MSL* | Container | Budgetary Price/Unit |
|---|
| NCV8843DG | Last Shipments | AEC Qualified
PPAP Capable
Pb-free
Halide free | SOIC-8 | 751-07 | 1 | Tube | 98 | |
| NCV8843DR2G | Last Shipments | AEC Qualified
PPAP Capable
Pb-free
Halide free | SOIC-8 | 751-07 | 1 | Tape and Reel | 2500 | |
| NCV8843MNR2G | Active | AEC Qualified
PPAP Capable
Pb-free
Halide free | DFN-18 | 505 | 1 | Tape and Reel | 2500 | $1.3333 |
| NCV8843PWG | Last Shipments | AEC Qualified
PPAP Capable
Pb-free
Halide free | SOIC-16W | 751R-02 | 1 | Tube | 47 | |
| NCV8843PWR2G | Last Shipments | AEC Qualified
PPAP Capable
Pb-free
Halide free | SOIC-16W | 751R-02 | 1 | Tape and Reel | 1000 | |
Specifications
| Product | Topology | Control Mode | VCC Min (V) | VCC Max (V) | VO Typ (V) | IO Typ (A) | Efficiency (%) | fSW Typ (kHz) |
|---|
| NCV8843MNR2G | Step-Down | V2 | 4 | 40 | | 1.5 | | Up to 700 |
