TPS40140

双路或双相可堆叠控制器

The is a multifunctional synchronous buck controller that can be configured to provide either a single-output 2-phase power supply or a power supply that supports two independent outputs. Several TPS40140 controllers can be stacked up to a 16-phase single output power supply. Alternatively, several controllers providing multiple independent outputs can be synchronized in an interleaving pattern for improved input ripple current.

The TPS40140 can convert from a 15-V input to a 0.7-V output at 1 MHz.

Each phase operates at a switching frequency of up to 1 MHz. The two phases in one device operate 180° out-of-phase. In a multiple-device stackable configuration, the phase shift of the slaves, relative to a master, is programmable.

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VDD from 4.5 to 15 V, With Internal 5-V Regulator

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VOUT from 0.7 V to 5.8 V

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Converts from 15-V Input to 0.7-V Output at

1 MHz

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Dual-Output or 2-Phase Interleaved Operation,

Stackable to 16 Phases

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Supports Prebiased Outputs

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Programmable Switching Frequency up to

1 MHz/Phase

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0.5% Internally Trimmed 0.7-V Reference

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10-µA Shutdown Current

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Current Mode Control With Forced Current

Sharing1

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1- to 40-V Power Stage Operation Range

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Power Sharing From Different Input Voltage Rails,

for Example, Master From 5 V, Slave From 12 V

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True Remote Sensing Differential Amplifier

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Programmable Input Undervoltage Lockout

UVLO

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Resistive or Inductor DCR Current Sensing

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Provide a 6-Bit Digitally Controlled Output

When Used With TPS40120

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36-Pin VQFN Package