NCP3235: 4.5 V to 21 V, DC/DC Converter with Integrated MOSFETs
The NCP3235 is a 15 A DC/DC converter with internal MOSFETs and offers flexibility in design. The device can deliver an adjustable output voltage as low as 0.6V to over 80% of the input voltage. Features include adjustable current limit, output voltage, and soft-start timing. Pin selectable features enable switching frequencies of 550 kHz or 1 MHz, selecting DCM/CCM operating modes, and the ability latch off or hiccup mode during over current. The part can be configure to operate in ultra-sonic mode to stay out of the audio band. The part is offered in a thermally enhanced 6mm by 6mm TQFN package.
Features- Accurate 0.6 V reference
- DCM/CCM selectable options
- 550kHz/1.1MHz switching frequency
- Ultra-sonic mode
- Thermally enhanced QFN package
- Wide operating range 4.5 V to 21 V
- Adjustable soft start
| Benefits- Adjustable output to set desired voltage as low as 0.6 V
- Operate in discontinuous mode for higher efficiency at light loads
- Design flexibility to select higher efficiency or smaller output filter
- Keeps capacitors from making audio sounds
- Higher dissipation with 3 exposed pads
- Allows for use across multiple applications
- Allows smooth ramp up during power up
|
Applications- Computing/Servers
- Datacom/Networking
- FGPA, ASIC, DSP power
- 12 V Point of load
| End Products- Desktops
- Servers
- Networking
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Data Sheets (1)
Simulation Models (1)
Package Drawings (1)
Order Information
| Product | Status | Compliance | Package | MSL* | Container | Budgetary Price/Unit |
|---|
| NCP3235MNTXG | Active | Pb-free
Halide free | QFN-40 | 485CM | 3 | Tape and Reel | 2500 | $1.1 |
Specifications
| Product | Topology | Control Mode | VCC Min (V) | VCC Max (V) | VO Typ (V) | IO Typ (A) | Efficiency (%) | fSW Typ (kHz) |
|---|
| NCP3235MNTXG | Step-Down | Voltage Mode | 4.5 | 21 | 0.6 | 15 | up to 97 | 550, 1100 |
