Overview

Non-Isolated Bus Converters

Non-Isolated, Ultra-High Efficiency DC-DC Converters for Telecom, Industrial and Medical Applications

The NiQor® DC-DC converter is a non-isolated buck regulator, which employs synchronous rectification to achieve extremely high conversion efficiency. The NiQor family of converters are used predominately in DPA systems using a front end DC-DC high power brick (48 Vin to low voltage bus). The non-isolated NiQor converters are then used at the point of load to create the low voltage outputs required by the design. The wide trim module can be programmed to a variety of output voltages through the use of a single external resistor.

General Specifications

  • Operating Temperature -40ºC to +100ºC
  • Output Voltage Set Point ±0.7 - 2.0%
  • Output Voltage Ripple <1.5% of Vout (typ.) pk-pk
  • Input Ref. Ripple Current <5% of Iin (typ.) rms
  • Switching Frequency 300 - 390 kHz
  • Industry standard pin-out configurations and standard footprints

Protection/Control Features

  • Input under-voltage lockout (UVLO)
  • Output current limit (OCP) and short circuit protection
  • Output over-voltage protection (OVP)
  • Thermal shutdown (OTP)
  • On/Off control referenced to input side
  • Output voltage trim (industry std. trim equations)

Operational Features

  • Ultra-high efficiency up to 96%
  • Output Voltage Trim Range: 0.7 - 5.5 V
  • Suitable for use in Intermediate Bus Architectures
  • On-board input and output filtering
  • No minimum load requirement
  • Optional features include remote sense, wide output voltage trim, and output current sharing
  • Follows DOSA standard pinout and footprint
  • Wide input voltage ranges:
    • 2.4-6.0 Vin (NQ04W33 SMT) 0.75-3.6 Vout @ 10 A/16 A
    • 3.0-6.0 Vin (NQ04W33 SIP) 0.75-3.6 Vout @ 10 A/16 A
    • 3.0-5.5 Vin (NQ04T33 SIP) 0.9-3.3 Vout @ 10 A/16 A
    • 6.0-15 Vin (NQ15W50 SMT) 0.8-5.0 Vout @ 30 A
    • 6.0-16 Vin (NQ16W50 SIP) 0.75-5.0 Vout @ 10 A/16 A
    • 6.0-16 Vin (NQ16W50 SMT) 0.75-5.0 Vout @ 10 A/16 A
  • Wide Trimmable Output Voltage Ranges:
    • 0.75-5.0 V (W50)
    • 0.75-3.6 V (W33)
    • 0.9-3.3 V (T33)