Texas Instruments TPS745/TPS745-Q1 Adjustable 500mA LDO Regulators
Texas Instruments TPS745/TPS745-Q1 Adjustable 500mA LDO Regulators offer a very low quiescent current, providing fast line and load transient performance. The TPS745/TPS745-Q1 has an ultra-low dropout of 130mV at 500mA that improves the system's power efficiency. The TPS745/TPS745-Q1 supports an input voltage range from 1.5V to 6.0V and an externally adjustable output range of 0.55V to 5.5V. The low output voltage enables the TPS745/TPS745-Q1 to power the newer microcontrollers with lower core voltages.
Additionally, the TPS745/TPS745-Q1 features a power-good (PG) output that monitors the voltage at the feedback pin to indicate the status of the output voltage. The EN input and PG output can be used to sequence multiple power sources in the system.
The device includes integrated thermal shutdown, current limit, and under-voltage lockout (UVLO) features. The LDO Regulators are stable with small ceramic output capacitors, allowing for a small overall solution size. The TPS745/TPS745-Q1 is available in a small, 6-pin, 2mm×2mm WSON package and is ideal for various applications. The Texas Instruments TPS745-Q1 devices are AEC-Q100 qualified for automotive applications.
Features
- 1.5V to 6.0V input voltage range
- 0.55V to 5.5V adjustable output voltage
- 130mV (max) at 500mA (3.3 VOUT) very low dropout
- 0.7% (typical) and 1% (maximum over temperature) high output accuracy
- Open-drain Power-Good output
- 25µA (typical) IQ
- Built-in soft-start with monotonic VOUT rise
- 2mm×2mm WSON-6 (DRV) package
- Active output discharge
Applications
- Set-top boxes, gaming consoles
- Home theater and entertainment
- Desktops, notebooks, ultrabooks
- Printers
- Servers
- Thermostat and lighting control
- Electronic Point of Sale (EPOS)
Datasheets
Typical Application
Related Development Tool
Texas Instruments TPS746EVM-009 Regulator Evaluation Module (EVM)
Designed for a typical configuration to evaluate the operation and performance of the TPS746.