TPS7A45 Series

1.5-A, 20-V, ultra-low-dropout voltage regulator with reverse current protection & enable

Link to Manufacturer Page: https://www.ti.com/

Catalog

1.5-A, 20-V, ultra-low-dropout voltage regulator with reverse current protection & enable

Part	Output Configuration	Voltage - Input (Max) [Max]	Current - Output	Operating Temperature [Max]	Operating Temperature [Min]	Protection Features	Package / Case	Control Features	PSRR	Mounting Type	Current - Quiescent (Iq)	Voltage - Output (Min/Fixed)	Supplier Device Package	Voltage Dropout (Max) [Max]	Number of Regulators	Output Type	Output Type	Voltage - Output (Max) [Max]
Texas Instruments TPS7A4515DCQR	Positive	20 V	1.5 A	125 °C	-40 °C	Over Current, Over Temperature, Reverse Polarity	SOT-223-6	Enable	68 dB	Surface Mount	1.5 mA	1.5 V	SOT-223-6	0.45 V	1	27.03 °C/W
Texas Instruments TPS7A4518DCQR	Positive	20 V	1.5 A	125 °C	-40 °C	Over Current, Over Temperature, Reverse Polarity	SOT-223-6	Enable	68 dB	Surface Mount	1.5 mA	1.8 V	SOT-223-6	0.45 V	1	27.03 °C/W
Texas Instruments TPS7A4501DCQT	Positive	20 V	1.5 A	125 °C	-40 °C	Over Current, Over Temperature, Reverse Polarity	SOT-223-6	Enable	68 dB	Surface Mount	1.5 mA	1.21 V	SOT-223-6	0.45 V	1		Adjustable	20 V
Texas Instruments TPS7A4533KTTR	Positive	20 V	1.5 A	125 °C	-40 °C	Over Current, Over Temperature, Reverse Polarity	D2PAK (5 Leads + Tab), TO-263-6, TO-263BA	Enable	68 dB	Surface Mount	1.5 mA	3.3 V	TO-263 (DDPAK-5)	0.45 V	1	27.03 °C/W
Texas Instruments TPS7A4501DCQR	Positive	20 V	1.5 A	125 °C	-40 °C	Over Current, Over Temperature, Reverse Polarity	SOT-223-6	Enable	68 dB	Surface Mount	1.5 mA	1.21 V	SOT-223-6	0.45 V	1		Adjustable	20 V
Texas Instruments TPS7A4501KTTR	Positive	20 V	1.5 A	125 °C	-40 °C	Over Current, Over Temperature, Reverse Polarity	D2PAK (5 Leads + Tab), TO-263-6, TO-263BA	Enable	68 dB	Surface Mount	1.5 mA	1.21 V	TO-263 (DDPAK-5)	0.45 V	1		Adjustable	20 V
Texas Instruments TPS7A4533DCQR	Positive	20 V	1.5 A	125 °C	-40 °C	Over Current, Over Temperature, Reverse Polarity	SOT-223-6	Enable	68 dB	Surface Mount	1.5 mA	3.3 V	SOT-223-6	0.45 V	1	27.03 °C/W
Texas Instruments TPS7A4533DCQT	Positive	20 V	1.5 A	125 °C	-40 °C	Over Current, Over Temperature, Reverse Polarity	SOT-223-6	Enable	68 dB	Surface Mount	1.5 mA	3.3 V	SOT-223-6	0.45 V	1	27.03 °C/W

Key Features

• Optimized for Fast Transient ResponseOutput Current: 1.5 AHigh Output Voltage Accuracy: 1% at 25°CDropout Voltage: 300 mVLow Noise: 35 µVRMS(10 Hz to 100 kHz)High Ripple Rejection: 68 dB at 1 kHz1-mA Quiescent CurrentNo Protection Diodes NeededControlled Quiescent Current in DropoutFixed Output Voltages: 1.5 V, 1.8 V, 2.5 V, 3.3 VAdjustable Output from 1.21 V to 20 V (TPS7A4501 Only)Less Than 1-µA Quiescent Current in ShutdownStable With 10-µF Ceramic Output CapacitorReverse-Battery ProtectionReverse Current ProtectionOptimized for Fast Transient ResponseOutput Current: 1.5 AHigh Output Voltage Accuracy: 1% at 25°CDropout Voltage: 300 mVLow Noise: 35 µVRMS(10 Hz to 100 kHz)High Ripple Rejection: 68 dB at 1 kHz1-mA Quiescent CurrentNo Protection Diodes NeededControlled Quiescent Current in DropoutFixed Output Voltages: 1.5 V, 1.8 V, 2.5 V, 3.3 VAdjustable Output from 1.21 V to 20 V (TPS7A4501 Only)Less Than 1-µA Quiescent Current in ShutdownStable With 10-µF Ceramic Output CapacitorReverse-Battery ProtectionReverse Current Protection

Description

The TPS7A45xx devices are low-dropout (LDO) regulators optimized for fast transient response. The device can supply 1.5 A of output current with a dropout voltage of 300 mV. Operating quiescent current is 1 mA, dropping to less than 1 µA in shutdown. Quiescent current is well controlled; it does not rise in dropout as with many other regulators. In addition to fast transient response, the TPS7A45xx regulators have very-low output noise, which makes them ideal for sensitive RF supply applications. Output voltage range is from 1.21 to 20 V. The TPS7A45xx regulators are stable with output capacitance as low as 10 µF. Small ceramic capacitors can be used without the necessary addition of ESR as is common with other regulators. Internal protection circuitry includes reverse-battery protection, current limiting, thermal limiting, and reverse-current protection. The devices are available in fixed output voltages of 1.5 V, 1.8 V, 2.5 V, 3.3 V, and as an adjustable device with a 1.21-V reference voltage. The TPS7A45xx devices are low-dropout (LDO) regulators optimized for fast transient response. The device can supply 1.5 A of output current with a dropout voltage of 300 mV. Operating quiescent current is 1 mA, dropping to less than 1 µA in shutdown. Quiescent current is well controlled; it does not rise in dropout as with many other regulators. In addition to fast transient response, the TPS7A45xx regulators have very-low output noise, which makes them ideal for sensitive RF supply applications. Output voltage range is from 1.21 to 20 V. The TPS7A45xx regulators are stable with output capacitance as low as 10 µF. Small ceramic capacitors can be used without the necessary addition of ESR as is common with other regulators. Internal protection circuitry includes reverse-battery protection, current limiting, thermal limiting, and reverse-current protection. The devices are available in fixed output voltages of 1.5 V, 1.8 V, 2.5 V, 3.3 V, and as an adjustable device with a 1.21-V reference voltage.