TI TPS7A1111PDRVR

The TPS7A11 is an ultra-small, low quiescent current, low-dropout (LDO) regulator. The device is capable of sourcing 500mA with excellent AC performance (load and line transient response). The device features an input range of 0.75V to 3.3V and an output range of 0.5V to 3.0V, with a high accuracy of 1.5% over load, line, and temperature. This performance is ideal for powering lower modern MCU core voltages and analog sensors. The main power path is through VIN, which can be connected to a supply as low as 140mV above the output voltage. The device uses an additional VBIAS supply rail to power the LDO's internal circuitry, enabling extremely low input voltages. The IN and BIAS pins each consume ultra-low quiescent currents of 1.6μA and 6μA, respectively. The low IQ and ultra-low dropout characteristics help improve solution efficiency in power-sensitive applications. For example, the VIN supply voltage can be the output of a high-efficiency DC/DC buck regulator, while the VBIAS supply voltage can be a rechargeable battery. The TPS7A11 incorporates an active discharge circuit to rapidly discharge the output when disabled and to provide a known startup state. The TPS7A11 is available in a compact 2.00mm×2.00mm WSON 6-pin (DRV) package and an ultra-small 0.74mm×1.09mm 5-pin DSBGA (YKA) package, making the device suitable for space-constrained applications.

• Ultra-low input voltage range: 0.75V to 3.3V
• Ultra-low dropout for minimum power loss: 140mV (max) in 500mA DRV package, 10mV (max) in 500mA YKA package
• Low quiescent current: VIN IQ = 1.6μA (typical), VBIAS IQ = 6μA (typical)
• 1.5% accuracy over load, line, and temperature
• High PSRR: 64dB at 1kHz
• Fixed output voltage options: 0.5V to 3.0V (in 50mV steps)
• VBIAS range: 1.7V to 5.5V
• Active output discharge

• Smartwatches, fitness trackers
• Wireless headphones and earbuds
• Camera modules
• Smartphones and tablets
• Portable medical devices
• Solid-state drives (SSD)