DC-DC converters/controllers

• Integrated switching-mode power supplies (highly-efficient DC-DC converters):
  • Buck, boost, buck/boost, fly-back, … topologies
  • Continuous and discontinuous
  • Voltage and current mode
  • Single phase or multiphase
  • High-frequency – small inductance
  • Asynchronous and synchronous
  • Pulse width modulation (PWM) – Pulse frequency modulation (PFM)
  • Integrated charge pumps and voltage doublers
  • SIMO (Single-Inductor Multiple-Output)
• Integrated capacitive DC-DCs , charge pumps, voltage doublers

Battery management/charging 

• Li-ion, PbSO4, ZnO2, …
• LDO regulators: low quiescent current / high current output
• Protection circuits: current, voltage and temperature overprotection
• High-accuracy charging 4.1V ± 10mV (all-in)
• Wireless charging and battery management: state-of-charge, state-of-health.
• 24V or 48V automotive supply levels
• Ultra low leakage <5nA

Examples

• Ultra-fast settling LDOs without external caps
• Multi-level (3-level) output DC-DC single coil
• PoE (NCP1083) Integrated 40 W PoE-PD, DC-DC Controller
• High-speed, low ripple, 2A inductive DC-DC with automatic PFM/PWM switching
• 60% efficiency, 10V, 20mW integrated Cap-DC-DC
•  1/2/4-phase 60V, 150W high-frequency (5 MHz), high-bandwidth DC-DC