The CA-IS3115AW-Q1 is a family of complete isolated DCDC converters with up to 5kVRMS isolation rating. These devices integrate most of the components needed for an isolated power supply —switching controller, power switches, transformer, soft-start, protection circuit etc. —into a single, compact SOIC package. The result is an efficient and compact fully integrated solution that is easy to comply with EMI requirements and makes power-supply isolation design as easy as possible. Operating over an input voltage range of 4.5V to 5.5V, the CA-IS3115AW-Q1devices provide a fixed output voltage of 3.3V, 3.7V, 5V or5.4V set by pin SEL. 3.7V and 5.4V output options provide headroom voltage to power an LDO. Only output, input bypass capacitors, and a pull-up resistor for 3.7V or 5.4V outputs are needed to finish the design.

The CA-IS3115AW-Q1 devices feature a unique control scheme, which can quickly respond to load transient and accurately regulate the output voltage. The devices are capable of delivering a load up to 1.5W output power and offering soft-start, current limit, short-circuit protection and thermal shutdown protection features to better enhance the reliability of the system. The CA-IS3115AW-Q1devices include an enable input pin (EN). Connect the EN pin to the VINP input voltage or force this pin high to turn on the DC-DC converter. Force this pin low to disable the device and enter shutdown mode. In shutdown mode, the device stops switching operation with microampere standby supply current.

The CA-IS3115AW-Q1 devices are available in wide-bodySOIC16 package with creepage and clearance > 8mm, andoperate over -40°C to +125°C temperature range.