1 Features
• Ultra-low input voltage range: 0.7 V to 2.2 V
• High efficiency:
– Dropout voltage at 1 A: 70 mV (max, YBK)
– Specified for VIN = VOUT +100 mV
• Excellent load transient response:
– 20 mV for ILOAD = 3 mA to 600 mA in 20 μs
• Accuracy over load, line, and temperature: 1%
• High PSRR:
– 80 dB at 1 kHz (VOUT = 0.8 V, IOUT = 500 mA)
• Available in fixed-output voltages:
– 0.5 V to 2.0 V (in 25-mV steps)
• VBIAS range: 2.2 V to 5.5 V
• Packages:
– 6-pin DSBGA: 0.71 mm × 1.16 mm
– 6-pin WSON: 2 mm × 2 mm
• Active output discharge

2 Applications
• Camera modules
• Wireless headphones and earbuds
• Smart watch and fitness trackers
• Smart phones and tablets
• Portable medical devices
• Solid state drives (SSDs)

3 Description
The TPS7A14 is a small, ultra low-dropout regulator
(LDO) with excellent transient response. This device
can source 1 A with outstanding ac performance (load
and line transient responses). The input voltage range
is 0.7 V to 2.2 V, and the output range is 0.5 V to
2.0 V with a very high accuracy of 1% over load, line,
and temperature.
The primary power path is through the IN pin and can
be connected to a power supply as low as 50 mV
above the output voltage. All electrical characteristics
(including excellent output voltage tolerance, transient
response, and PSRR) are specified for input voltages
100 mV greater than the output voltage, thereby
yielding high practical efficiency. This regulator
supports very low input voltages with the use of a
higher, externally supplied VBIAS rail that is used to
power the internal circuitry of the LDO. For example,
the supply voltage to the IN pin can be the output
of a high-efficiency, DC/DC step-down regulator and
the BIAS pin supply voltage can be a rechargeable
battery.
The TPS7A14 is equipped with an active pulldown
circuit to quickly discharge the output when disabled,
and provides a known start-up state.
The TPS7A14 is available in a 2-mm × 2-mm, 6-pin
WSON package and an ultra-small 0.71-mm × 1.16-
mm, 6-bump WCSP package.