TPS7A1509 Series

400-mA, low input and output voltage, ultra-low dropout (LDO) voltage regulator

Catalog(1 parts)

Part	Supplier Device Package	Output Type▲▼	Mounting Type	Number of Regulators▲▼	Protection Features	Output Configuration	Voltage Dropout (Max)▲▼	Package / Case	Current - Supply (Max)▲▼	PSRR▲▼	PSRR▲▼	Control Features	Voltage - Output (Min/Fixed)▲▼	Current - Output▲▼	Voltage - Input (Max)▲▼	Operating Temperature▲▼	Operating Temperature▲▼
Texas Instruments TPS7A1509PYCKR Linear Voltage Regulator IC Positive Fixed 1 Output 400mA 6-DSBGA (0.71x1)	6-DSBGA (0.71x1)	27.030000686645508 °C/W	Surface Mount	1 ul	Over Current, Over Temperature, Short Circuit, Under Voltage Lockout (UVLO)	Positive	0.800000011920929 V	6-XFBGA, DSBGA	0.0005000000237487257 A	23 ul	90 ul	Current Limit, Enable	0.8999999761581421 V	0.4000000059604645 A	2.200000047683716 V	125 °C	-40 °C

Key Features

• Ultra-low input voltage range: 0.7 V to 2.2 VHigh efficiency:Dropout at 400 mA: 80 mV (max)Specified for V IN = V OUT + 100 mVExcellent load transient response:20 mV for I LOAD 1 mA to 250 mA in 10 µsAccuracy (load, line, temperature): +1%, –1.1%High PSRR: 84 dB at 1 kHzAvailable 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, 1-mm × 0.71-mm DSBGA6-pin, 2-mm × 2-mm WSONActive output dischargeUltra-low input voltage range: 0.7 V to 2.2 VHigh efficiency:Dropout at 400 mA: 80 mV (max)Specified for V IN = V OUT + 100 mVExcellent load transient response:20 mV for I LOAD 1 mA to 250 mA in 10 µsAccuracy (load, line, temperature): +1%, –1.1%High PSRR: 84 dB at 1 kHzAvailable 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, 1-mm × 0.71-mm DSBGA6-pin, 2-mm × 2-mm WSONActive output discharge

Description

The TPS7A15 is a small, low-dropout regulator (LDO) with excellent transient response. This device can source 400 mA with outstanding ac performance (load and line transient responses). The input voltage range is from 0.7 V to 2.2 V, and the output range is from 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 by using a higher, externally supplied V BIAS rail that powers 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 TPS7A15 is equipped with an active pulldown circuit to quickly discharge the output when disabled, and provides a known start-up state. The TPS7A15 is available in a 2-mm × 2-mm, 6-pin WSON package and in an ultra-small 0.71-mm × 1.0-mm, 6-bump WCSP package. The TPS7A15 is a small, low-dropout regulator (LDO) with excellent transient response. This device can source 400 mA with outstanding ac performance (load and line transient responses). The input voltage range is from 0.7 V to 2.2 V, and the output range is from 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 by using a higher, externally supplied V BIAS rail that powers 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 TPS7A15 is equipped with an active pulldown circuit to quickly discharge the output when disabled, and provides a known start-up state. The TPS7A15 is available in a 2-mm × 2-mm, 6-pin WSON package and in an ultra-small 0.71-mm × 1.0-mm, 6-bump WCSP package.