LTM8049 Dual SEPIC or Inverting µModule®

By Linear Technology 43

LTM8049 Dual SEPIC or Inverting µModule®

Linear Technology's LTM8049 is a dual-SEPIC/inverting μModule (power module) DC/DC converter. Each of the two outputs can be easily configured as a SEPIC or inverting converter by simply grounding the appropriate output rail. The LTM8049 includes power devices, inductors, control circuitry, and passive components. All that is needed to complete the design are input and output caps, and small resistors to set the output voltages and switching frequency. Other components may be used to control the soft-start and undervoltage lockout.

The LTM8049 is packaged in a thermally enhanced, compact (15 mm x 9 mm), over-molded, ball-grid array (BGA) package suitable for automated assembly by standard, surface-mount equipment. The LTM8049 is RoHS compliant.

Design Resources

Features
 
  • Two complete switch-mode power supplies
  • SEPIC or inverting topology
  • Wide input-voltage range: 2.6 V to 20 V
  • 2.5 V to 24 V or -2.5 V to -24 V output voltage
  • 1 A at 5 VOUT from 12 VIN
  • Selectable switching frequency: 200 kHz to 2.5 MHz
  • Power-good outputs for event-based sequencing
  • User-configurable under-voltage lockout
  • (e4) RoHS Compliant package with gold pad finish
  • Low-profile, 15 mm x 9 mm x 2.42 mm, surface-mount, BGA package
Applications
  • Battery powered regulators
  • Local negative voltage regulators
  • Low noise amplifier power

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