NB650

NB650

NOT RECOMMENDED FOR NEW DESIGNS

Wide Vin 4.5-28V , 6A, OCP Hiccup Mode, COT Synchronous Step-Down Converter with 2-Bit VID

ALTERNATIVE PART

NRFND Datasheet

NB650 continues to be in production for existing customers. Please consider this alternative for new designs:

NB650A

High-Efficiency, Fast-Transient, 6A, 28V Synchronous Step-Down Converters with 2-Bit VID, OCP Latch-Off Mode

Features & Benefits

Wide 4.5V-to-28V Operating Input Range
6A Output Current
Internal 50mΩ High-Side, 18mΩ Low-Side Power MOSFETs
Proprietary Switching Loss Reduction Technique
1% Reference Voltage
Programmable Soft-Start Time
2-bit VID Input
Soft Shutdown
Frequency Programmable from 150kHz to 1MHz
SCP, OCP, OVP, UVP, and Thermal Shutdown
Optional OCP Protection: Latch-Off Mode
Output Adjustable from 0.6V to 13V
Available in QFN17 (3mm×4mm) Package

… and many more!

Description

The NB650/NB650H is fully-integrated, high-frequency, synchronous, rectified, step-down, switch-mode converters with dynamic-output–voltage control. It offers a very compact solution to achieve 6A of continuous output current over a wide input supply range, and has excellent load and line regulation. The NB650/NB650H operates at high efficiency over a wide output-current–load range.
Constant-On-Time control mode provides fast transient response and eases loop stabilization.
2-bit VID inputs support changing the output voltage on-the-fly.
Full protection features include short-circuit protection, over-current protection, over-voltage protection, under-voltage protection, and thermal shut down.
The NB650/NB650H requires a minimal number of readily-available standard external components, and is available in a space-saving 3mm×4mm QFN17 package.