illustrate

TPS40140 significant is a versatile synchronous buck controller that can be configured to provide either a single-output two-phase power supply or a power supply device, supporting two independent outputs. Several TPS40140 controllers can stack up to 16 phases of multiphase single-output power supplies. In addition, multiple independent outputs can be provided by multiple controllers in a synchronized pattern of improved input ripple current interleave.

TPS40140 significant conversion from a 15 V input to an output capability of 0.7-V at 1MHz.

Each stage operates at a switching frequency of up to 1 MHz. In one device, two stages operate 180° out of phase. In a multi-device stacking configuration, slave phase shifts, relative to the master, are programmable.

characteristic

• VDD from 4.5 V to 15 volts with a built-in 5 V regulator
• V OUT from 0.7 V to 5.8 V
• Converts from a 15 V input to a 0.7 V output at 1MHz
• Dual-output or two-phase staggered operation and can be stacked up to 16 phases
• Programmable switching frequencies up to 1 MHz/phase with pre-biased outputs are supported
• Internal trim 0.5%, 0.7 V reference
• 10μA shutdown current
• Current Mode Control and Forced Current Sharing(1)
• Power stage operating range from 1V to 40V
• Share power from different input voltage rails, (e.g., from 5 volt mage, from 12 V from)
• True differential amplifier remote sensing
• Programmable input undervoltage lockout
• Resistive or inductive DCR current sensing
• A 6-digit digitally controlled output is provided for use with the TPS40120
• 36-pin QFN package
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