ADP2503ACPZ-3.3-R7

ADP2503 is a high efficiency, low quiescent current step-up/step-down dc-to-dc converter. It 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, this device 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, this device has 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. It is widely used in application such as wireless handsets, digital cameras/portable audio players, miniature hard disk power supplies, USB powered devices etc.

• Quiescent current is 38μA typ
• Input voltage is 2.3V to 5.5V
• Fixed output voltage is 2.8V to 5V
• Boost converter configuration with load disconnect
• Internal compensation, soft start, switch current limit is 1A to 1.4A
• Enable/shutdown logic input, overtemperature protection
• Short-circuit protection, undervoltage lockout protection, compact PCB footprint
• Voltage is 3.3V, current is 0.6A max
• Operating temperature is -40°C to +125°C
• Package style is 10-lead lead frame chip scale package [LFCSP-WD]

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party