TPS62404 Datasheet

TPS62404 2.25-MHz 400-mA and 600-mA Dual Step-Down Converter

The TPS6240x family of devices are synchronous dual step-down DC-DC converters optimized for battery-powered portable applications. The devices provide two independent output voltage rails powered by 1-cell Li-Ion or 3-cell NiMH/NiCD batteries. The devices are also suitable to operate from a standar.

Features

•1 High Efficiency—Up to 95%
• VIN Range From 2.5 V to 6 V
• 2.25-MHz Fixed Frequency Operation
• Output Current of 400 mA and 600 mA
• Adjustable Output Voltage From 0.6V to VIN
• Pin-Selectable Output Voltage Supports Simple Dynamic Voltage Scaling
• EasyScale™ Optional One-Pin Serial Interface
• Power Save Mode at Light Load Currents
• 180° Out-of-Phase Operation
• Output Voltage Accuracy in PWM Mode ±1%
• Typical 32-μA Quiescent Current for Both Converters
• 100% Duty Cycle for Lowest Dropout
• Available in a 10-Pin VSON (3 mm × 3 mm) 2 Applications
• Cell Phones, Smart Phones
• PDAs, Pock.