Features

• SEPIC or Inverting Topology
• Wide Input Voltage Range: 2.8V to 18V
• Up to 700mA Output Current at V_IN = 12V, V_OUT = 2.5V or –2.5V
• Up to 375mA Output Current at V_IN = 12V, V_OUT =15V or –15V
• 2.5V to 15V or –2.5V to –15V Output Voltage
• Selectable Switching Frequency: 200kHz to 2MHz
• Programmable Soft-Start
• User Configurable Undervoltage Lockout
• 6.25mm × 11.25mm × 4.92mm BGA Package

Typical Application

Description

The LTM®8045 is a μModule® (power module) DC/DC converter that can be configured as a SEPIC or inverting converter by simply grounding the appropriate output rail. In a SEPIC configuration the regulated output voltage can be above, below or equal to the input voltage. The LTM8045 includes power devices, inductors, control circuitry and passive components. All that is needed to complete the design are input and output capacitors, and small resistors to set the output voltage and switching frequency. Other components may be used to control the soft-start and undervoltage lockout.

The LTM8045 is packaged in a compact (6.25mm × 11.25mm) overmolded ball grid array (BGA) package suitable for automated assembly by standard surface mount equipment. The LTM8045 is available with SnPb (BGA) or RoHS compliant terminal finish.