illustrate

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

The TPS40140 converts significantly from a 15 V input to 1 MHz with an output capability of 0.7 - V.

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

characteristic

• VDD from 4.5 V to 15 volts with a built-in 5 V regulator
• _VOUT from 0.7 V to 5.8 V
• Converts from a 15 V input to a 0.7 V output at 1 MHz
• Dual output or two-phase interleaved operation, stackable to 16 phases
• Supports programmable switching frequencies up to 1 MHz/phase with prebiased outputs
• Internal trim 0.5%, 0.7 V reference
• 10μA shutdown current
• Current mode control is shared with forced current^（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
• Provides a 6-bit digitally controlled output for use with the TPS40120
• 36-pin QFN package
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