This file introduces the features of two adjustable step-down controllers, L6730C and L6730D, including input voltage range, supply voltage range, adjustable output voltage range, accuracy, frequency, voltage reference, soft start, inhibit, driver, predictive anti-cross conduction control, selectable UVLO threshold, programmable high, low-side RDS(on) sense current protection, switching frequency, master/slave synchronization, pre-bias start up capability, selectable source/sink or source only capability, selectable constant current or hiccup mode overcurrent protection, programmable delay good output, selectable latched/not-latched mode of voltage protection, thermal shut-down, etc.
The STMicroelectronics L6730C and L6730D are integrated circuits designed for high-performance step-down DC-DC and niPOL converters. They feature complete control logic and protection, driving N-Channel MOSFETs in a synchronous rectified buck topology with output voltage regulation down to 0.6V.
| Input voltage range | 1.8V to 14V |
|---|---|
| Supply voltage range | 4.5V to 14V |
| Output voltage accuracy | +0.8% |
| Operating temperature range | -40 to +125 °C |
| Switching frequency range | 100KHz to 1MHz |
| Minimum on-time | lower than 100ns |
| Output current capability | in excess of 20A |
| Error amplifier gain-bandwidth | 10MHz |
The switching frequency is programmable from 100KHz to 1MHz.
The devices are available in HTSSOP20 and QFN4x4 24L packages.
Yes, the output voltage can be precisely regulated down to 0.6V with a maximum tolerance of +0.8%.