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Description

The TPS65000 and TPS65001 are single chip Power Management ICs for portable applications. Both devices combine a single step-down converter with two low dropout regulators. The step-down converter enters a low power mode at light load for maximum efficiency across the widest possible range of load currents. For low noise applications, the devices can be forced into fixed frequency PWM via a pin. The step-down converter allows the use of a small inductor and capacitors to achieve a small solution size. The step-down converter has Power Good status output that can be used for sequencing. The LDOs are capable of supplying 300mA, and can
operate with an input voltage range between 1.6V and 6V, allowing them to be supplied from the
step-down converter or directly from the main battery. The step-down converter and the LDOs have separate voltage inputs and enables, allowing for design and sequencing flexibility.

Features

• Step-Down Converters: – VIN Range From 2.3V to 6V
– Spread Spectrum Clock (SSC) Generation for Reduced EMI
– 2.25MHz Fixed Frequency Operation
– 600mA or 1A (TPS650061) Output Current
• LDOs:– VIN Range From 1.6V to 6V
– Adjustable Output Voltage
– Up to 300mA Output Current
– Separate Power Inputs and Enables
• Supply Voltage Supervisor (TPS65001)
– Manual Reset Input for Push Button
– Adjustable Reset Time
– Adjustable Reset Voltage
• 3mm × 3mm 16-Pin QFN (TPS65000)
• 3mm × 3mm 20-Pin QFN (TPS65001)

Applications 

• Point of Load
• Embedded Processor Power
• Cell Phones, Smart-Phones
• PDAs, Pocket PCs
• Portable Media Players