The TPS62420 device is a synchronous dual step-down dc-dc converter optimized for battery-powered portable applications. It provides two independent output voltage rails powered by 1-cell Li-Ion or 3-cell NiMH/NiCD batteries. The device is also suitable to operate from a standard 3.3-V or 5-V voltage rail.
●With the EasyScale serial interface the output voltages can be modified during operation. It therefore supports Dynamic Voltage Scaling for low power DSP and processors.
●The TPS62420 operates at 2.25-MHz fixed switching frequency and enters Power Save Mode operation at light load currents to maintain high efficiency over the entire load current range. For low-noise applications, the devices can be forced into fixed-frequency PWM mode by pulling the MODE/DATA pin high. In the shutdown mode, the current consumption is reduced to 1.2 µA. The device allows the use of small inductors and capacitors to achieve a small solution size.
●The TPS62420 is available in a 10-pin leadless package (3mm×3mm QFN).
● Qualified for Automotive Applications
● High Efficiency: Up to 95%
● VIN Range From 2.5 V to 6 V
● 2.25-MHz Fixed Frequency Operation
● Output Current: 600 mA and 1000 mA
● Adjustable Output Voltage From 0.6 V to VIN
● EasyScale Optional One-Pin Serial Interface for
●Dynamic Output Voltage Adjustment
● Power Save Mode at Light Load Currents
● 180° Out of Phase Operation
● Output Voltage Accuracy in PWM Mode: ±1%
● 100% Duty Cycle for Lowest Dropout
● Available in a 10-Pin QFN (3×3mm)
