Packaging information
| Package | Pins VQFN (RHH) | 36 |
| Operating temperature range (°C) -40 to 85 |
| Package qty | Carrier 250 | SMALL T&R |
Features for the TPS40140
- 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
Description for the TPS40140
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.