The TPS40140 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.
● VDD from 4.5 to 15 V, With Internal 5-V Regulator
● VOUT from 0.7 V to 5.8 V
● Converts from 15-V Input to 0.7-V Output at
●1 MHz
● Dual-Output or 2-Phase Interleaved Operation,
●Stackable to 16 Phases
● Supports Prebiased Outputs
● Programmable Switching Frequency up to
●1 MHz/Phase
● 0.5% Internally Trimmed 0.7-V Reference
● 10-µA Shutdown Current
● Current Mode Control With Forced Current
●Sharing(1)
● 1- to 40-V Power Stage Operation Range
● Power Sharing From Different Input Voltage Rails,
●(for Example, Master From 5 V, Slave From 12 V)
● True Remote Sensing Differential Amplifier
● Programmable Input Undervoltage Lockout
●(UVLO)
● Resistive or Inductor DCR Current Sensing
● Provide a 6-Bit Digitally Controlled Output
●When Used With TPS40120
● 36-Pin VQFN Package
