Award-winning SIMPLE SWITCHER DC/DC converters deliver robust power supplies with the minimum set of external components. All SIMPLE SWITCHER products work with the enhanced WEBENCH Power Designer end-to-end design and prototyping tools.

SIMPLE SWITCHER® Controllers

For designs that require higher output current, the SIMPLE SWITCHER controller family provides flexibility and ease-of-use with additional design resources including a MOSFET selector tool using WEBENCH® tools.

The LM315x Series controllers come with a complete package of design tools to assist with every step of the design process, including: fully supported by WEBENCH® tools, external component selection including MOSFET selection, electrical and thermal simulation, and board evaluation.
The LM315x Series also features external component count down to 11 components required for a complete design, and a constant on time (COT) architecture to simplify the design process. This COT architecture eliminates the need for compensation circuitry while still providing a fixed output voltage and frequency.

The SIMPLE SWITCHER controller series features a synchronous architecture that allows for efficiencies up to 93% and is capable of delivering up to 12A of output current, driving up to 1MHz of switching frequency and supporting a wide input voltage range from 6 to 42V.

LM315x Family of Controllers

• Flexible and efficient
  • External FET selection allows for power efficiency optimization
• Reduced solution size
  • Patent-pending Emulated Ripple Mode allows the use of low-ESR output capacitors for reduced solution side and output voltage ripple
• Lowest controller Bill of Materials solution in the market
  • As low as 11 total components
• Exposed pad TSSOP-14 packaging
  • Provides enhanced thermal performance
• Load currents: up to 12A
• Input voltages: from 6V to 42V