The document describes the features and characteristics of the L6910 and L6910A products, including operating voltage range, gate current capability, adjustable output voltage, non-inverting input, voltage reference, PWM control, load transient response, duty cycle, power good output, overvoltage protection, hiccup overcurrent protection, adjustable internal oscillator frequency, soft start and inhibit. It is applicable for supply to memories and terminations, computer add-on cards, low voltage distributed DC-DC, and mag-amp replacement applications.
The L6910 and L6910A are PWM controllers designed for high-performance step-down DC-DC conversion from 3.3V, 5V, and 12V buses. The device drives N-channel MOSFets in a synchronous-rectified buck topology and provides an adjustable output voltage down to 0.9V using an internal 0.9V ±1.5% reference.
| Operating Supply Voltage | 5V to 12V |
|---|---|
| Gate Current Capability | Up to 1.3A |
| Reference Voltage | 0.9V ±1.5% |
| Internal Oscillator Frequency | 200kHz |
| Oscillator Frequency Range | 50kHz to 1MHz |
| Output Voltage Accuracy | ±1.5% |
| Gain-Bandwidth Product | 10 MHz |
| Slew Rate | 10 V/µs |
| Packages | SO-16 & HTSSOP16 |
The device includes a 200kHz internal oscillator that is externally adjustable from 50kHz to 1MHz.
The output voltage can be precisely regulated down to 900mV (0.9V) when using the internal reference.
Yes, it is designed to drive N Channel Mosfets in a synchronous-rectified buck topology.