LM708x0 80V, 8A/6A/4A, High-Efficiency Buck Converters Designed for High Power Density

1 Features

Functional Safety-Capable
- Documentation available to aid functional safety system design
Synchronous DC/DC converter with a versatile buck controller and robust power MOSFETs
- Wide input voltage range: 4.5V to 80V
- Shutdown mode current: 2.3µA
- No-load I_Q regulating 48V to 5V: 8.2µA
- 1% accurate, fixed 3.3V, 5V, 12V, or adjustable outputs from 0.8V to 55V
- Dual-phase operation enabling output currents up to 16A
Designed for low EMI requirements
- Facilitates CISPR 11 Class B compliance
- Pin-selectable ±8% dual-random spread spectrum reduces peak emissions
- Switching frequency: 200kHz to 2.2MHz
- Pin-configurable AUTO or FPWM operation
Inherent protection features for robust design
- Internal hiccup-mode overcurrent protection
- Enable, power good, and thermal shutdown
- Internal or external loop compensation
6mm × 6mm thermally optimized, RoHS compliant, QFN-29 package with Pb-free plating
Create a custom design using the LM708x0 with the WEBENCH® Power Designer