TPS79501-Q1 Series

Automotive 500-mA, adjustable low-dropout voltage regulator with enable

Catalog

Automotive 500-mA, adjustable low-dropout voltage regulator with enable

Part	Output Configuration	Current - Quiescent (Iq)	Protection Features	PSRR [Min]	PSRR [Max]	Supplier Device Package	Voltage - Output (Min/Fixed)	Number of Regulators	Voltage - Output (Max) [Max]	Mounting Type	Grade	Output Type	Operating Temperature [Max]	Operating Temperature [Min]	Qualification	Current - Output	Control Features	Package / Case	Voltage - Input (Max) [Max]
Texas Instruments TPS79501QDRBRQ1	Positive	385 µA	Over Current Over Temperature Reverse Polarity Under Voltage Lockout (UVLO)	39 dB	59 dB	8-SON (3x3)	1.2 V	1	5.5 V	Surface Mount	Automotive	Adjustable	125 °C	-40 °C	AEC-Q100	500 mA	Enable	8-VDFN Exposed Pad	5.5 V

Catalog

Automotive 500-mA, adjustable low-dropout voltage regulator with enable

Key Features

• Qualified for Automotive Applications500-mA Low-Dropout Regulator With EnableHigh PSRR (50 dB at 10 kHz)Ultralow Noise (33 µVRMS, TPS79501-Q1)Fast Start-Up Time (50 µs)Stable With a 1-µF Ceramic CapacitorExcellent Load/Line Transient ResponseLow Dropout Voltage (110 mV at Full Load, TPS79501-Q1)APPLICATIONSRF: VCOs, Receivers, ADCsAudioBluetooth®, Wireless LANBluetooth Is a trademark of Texas InstrumentsQualified for Automotive Applications500-mA Low-Dropout Regulator With EnableHigh PSRR (50 dB at 10 kHz)Ultralow Noise (33 µVRMS, TPS79501-Q1)Fast Start-Up Time (50 µs)Stable With a 1-µF Ceramic CapacitorExcellent Load/Line Transient ResponseLow Dropout Voltage (110 mV at Full Load, TPS79501-Q1)APPLICATIONSRF: VCOs, Receivers, ADCsAudioBluetooth®, Wireless LANBluetooth Is a trademark of Texas Instruments

Description

The TPS79501-Q1 low-dropout (LDO), low-power linear voltage regulator features high power-supply rejection ratio (PSRR), ultralow noise, fast start-up, and excellent line and load transient responses in a small outline SON package. The device is stable with a small 1-µF ceramic capacitor on the output. The TPS79501-Q1 uses an advanced, proprietary BiCMOS fabrication process to yield extremely low dropout voltages (for example, 110 mV at 500 mA). The device achieves fast start-up times (approximately 50 µs with a 0.001-µF bypass capacitor) while consuming very low quiescent current (265 µA, typical). Moreover, when the device is placed in standby mode, the supply current is reduced to less than 1 µA. The TPS79501-Q1 exhibits approximately 33 µVRMSof output voltage noise at 3-V output with a 0.1-µF bypass capacitor. Applications with analog components that are noise-sensitive, such as portable RF electronics, benefit from the high-PSRR and low-noise features, as well as from the fast response time. The TPS79501-Q1 low-dropout (LDO), low-power linear voltage regulator features high power-supply rejection ratio (PSRR), ultralow noise, fast start-up, and excellent line and load transient responses in a small outline SON package. The device is stable with a small 1-µF ceramic capacitor on the output. The TPS79501-Q1 uses an advanced, proprietary BiCMOS fabrication process to yield extremely low dropout voltages (for example, 110 mV at 500 mA). The device achieves fast start-up times (approximately 50 µs with a 0.001-µF bypass capacitor) while consuming very low quiescent current (265 µA, typical). Moreover, when the device is placed in standby mode, the supply current is reduced to less than 1 µA. The TPS79501-Q1 exhibits approximately 33 µVRMSof output voltage noise at 3-V output with a 0.1-µF bypass capacitor. Applications with analog components that are noise-sensitive, such as portable RF electronics, benefit from the high-PSRR and low-noise features, as well as from the fast response time.