Overview
The TPS40140RHHT is a multifunctional synchronous buck controller produced by Texas Instruments. This device can be configured to provide either a single-output 2-phase power supply or a power supply that supports two independent outputs. It is designed to operate in a variety of configurations, including stackable up to 16 phases for high-density power supplies, and synchronized in an interleaving pattern to improve input ripple current.
The TPS40140RHHT features a wide input voltage range from 4.5 V to 15 V, with an internal 5-V regulator, and can convert from a 15-V input to a 0.7-V output at a switching frequency of up to 1 MHz. It supports prebiased outputs and has programmable switching frequencies and phase shifts, making it highly versatile for various power management applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | VQFN (RHH) | - |
| Pins | 36 | - |
| Operating Temperature Range | -40 to 85 | °C |
| VDD Range | 4.5 to 15 | V |
| VOUT Range | 0.7 to 5.8 | V |
| Switching Frequency | Up to 1 MHz/Phase | - |
| Power Stage Operation Range | 1 to 40 | V |
| Shutdown Current | 10 µA | - |
| Internal Voltage Reference | 0.5% Internally Trimmed 0.7-V | - |
| Thermal Resistance (Junction-to-Ambient) | 30.8 | °C/W |
Key Features
- VDD from 4.5 to 15 V, with an 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- to 40-V power stage operation range
- Power sharing from different input voltage rails
- 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
Applications
- Graphic Cards
- Internet Servers
- Networking Equipment
- Telecommunications Equipment
- DC Power Distributed Systems
- High-density telecom and wireless systems
- 3G base stations
- Data center servers
Q & A
- What is the TPS40140RHHT?
The TPS40140RHHT is a multifunctional synchronous buck controller produced by Texas Instruments, capable of providing either a single-output 2-phase power supply or two independent outputs.
- What is the input voltage range of the TPS40140RHHT?
The input voltage range is from 4.5 V to 15 V.
- What is the output voltage range of the TPS40140RHHT?
The output voltage range is from 0.7 V to 5.8 V.
- What is the maximum switching frequency of the TPS40140RHHT?
The maximum switching frequency is up to 1 MHz per phase.
- Can the TPS40140RHHT be stacked for higher power output?
Yes, it can be stacked up to 16 phases for higher power output.
- What is the shutdown current of the TPS40140RHHT?
The shutdown current is 10 µA.
- Does the TPS40140RHHT support prebiased outputs?
Yes, it supports prebiased outputs.
- What is the thermal resistance (junction-to-ambient) of the TPS40140RHHT?
The thermal resistance (junction-to-ambient) is 30.8 °C/W.
- In what types of applications is the TPS40140RHHT commonly used?
It is commonly used in graphic cards, internet servers, networking equipment, telecommunications equipment, DC power distributed systems, high-density telecom and wireless systems, 3G base stations, and data center servers.
- Does the TPS40140RHHT support programmable input undervoltage lockout (UVLO)?
Yes, it supports programmable input undervoltage lockout (UVLO).
