ADP2504ACPZ-3.3-R7

The ADP2504ACPZ-3.3-R7 is a step-up/step-down DC-to-DC Converter can operate at input voltages greater than, less than or equal to the regulated output voltage. The power switches and synchronous rectifiers are internal to minimize external device count. At high load currents, the ADP2504 uses a current-mode, fixed frequency pulse-width modulation (PWM) control scheme for optimal stability and transient response. To ensure the longest battery life in portable applications, the ADP2504 have an optional power save mode that reduces the switching frequency under light load conditions. For wireless and other low noise applications where variable frequency power save mode may cause interference, the logic control input sync forces fixed frequency PWM operation under all load conditions. The ADP2504 can run from input voltages between 2.3 and 5.5V, allowing single lithium or lithium polymer cell, multiple alkaline or NiMH cells, PCMCIA, USB and other standard power sources.

• Compact PCB footprint
• Seamless transition between modes
• Boost converter configuration with load disconnect SYNC pin with three different modes
• Internal compensation
• Soft-start
• Enable/shutdown logic input
• Overtemperature protection
• Short-circuit protection
• Undervoltage lockout protection