TPS7A1485 Series

1-A, low input and output voltage, ultra-low-dropout (LDO) voltage regulator

Catalog(1 parts)

Part	PSRR▲▼	Number of Regulators▲▼	Voltage Dropout (Max)▲▼	Current - Quiescent (Iq)▲▼	Output Configuration	Protection Features	Current - Output▲▼	Output Type▲▼	Voltage - Output (Min/Fixed)▲▼	Mounting Type	Current - Supply (Max)▲▼	Voltage - Input (Max)▲▼	Package / Case	Supplier Device Package	Operating Temperature▲▼	Operating Temperature▲▼	Control Features
Texas Instruments TPS7A1485PYBKR Linear Voltage Regulator IC Positive Fixed 1 Output 1A 6-DSBGA (0.67x1.12)	33 ul, 80 ul	1 ul	0.0989999994635582 V	0.000005700000201613875 A	Positive	Over Current, Over Temperature	1 A	27.030000686645508 °C/W	0.8500000238418579 V	Surface Mount	0.0006200000061653554 A	2.200000047683716 V	6-XFBGA, DSBGA	6-DSBGA (0.67x1.12)	125 °C	-40 °C	Current Limit, Enable

Key Features

• Ultra-low input voltage range: 0.7 V to 2.2 VHigh efficiency:Dropout voltage at 1 A: 70 mV (max, YBK)Specified for V IN = V OUT +100 mVExcellent load transient response:20 mV for I LOAD = 3 mA to 600 mA in 20 µsAccuracy over load, line, and temperature: 1%High PSRR:80 dB at 1 kHz (V OUT = 0.8 V, I OUT = 500 mA)Available in fixed-output voltages:0.5 V to 2.0 V (in 25-mV steps)V BIAS range: 2.2 V to 5.5 VPackages:6-pin DSBGA: 0.71 mm × 1.16 mm6-pin WSON: 2 mm × 2 mmActive output dischargeUltra-low input voltage range: 0.7 V to 2.2 VHigh efficiency:Dropout voltage at 1 A: 70 mV (max, YBK)Specified for V IN = V OUT +100 mVExcellent load transient response:20 mV for I LOAD = 3 mA to 600 mA in 20 µsAccuracy over load, line, and temperature: 1%High PSRR:80 dB at 1 kHz (V OUT = 0.8 V, I OUT = 500 mA)Available in fixed-output voltages:0.5 V to 2.0 V (in 25-mV steps)V BIAS range: 2.2 V to 5.5 VPackages:6-pin DSBGA: 0.71 mm × 1.16 mm6-pin WSON: 2 mm × 2 mmActive output discharge

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 V BIAS 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. 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 V BIAS 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.