TPS65300-Q1 Series

Automotive 5.6V to 40V, 1.2A buck converter with 3 LDOs

Catalog

Automotive 5.6V to 40V, 1.2A buck converter with 3 LDOs

Part	Grade	Voltage/Current - Output 2	Supplier Device Package	Voltage - Supply [Min]	Voltage - Supply [Max]	Mounting Type	w/Supervisor	Topology	w/LED Driver	Number of Outputs	w/Sequencer	Operating Temperature [Max]	Operating Temperature [Min]	Voltage/Current - Output 1 [custom]	Voltage/Current - Output 1 [custom]	Voltage/Current - Output 3	Frequency - Switching [Max]	Frequency - Switching [Min]	Qualification	Package / Case	Package / Case
Texas Instruments TPS65300QRHFRQ1	Automotive	5 V 350 mA	24-VQFN (5x4)	5.6 V	40 VDC	Surface Mount		Linear (LDO) (3) Step-Down (Buck) (1)		4		125 °C	-40 °C	5.3 V	1.2 A	3.3 V 350 mA	3 MHz	2 MHz	AEC-Q100	24-VFQFN Exposed Pad
Texas Instruments TPS65300QPWPRQ1	Automotive	5 V 350 mA	24-HTSSOP	5.6 V	40 VDC	Surface Mount		Linear (LDO) (3) Step-Down (Buck) (1)		4		125 °C	-40 °C	5.3 V	1.2 A	3.3 V 350 mA	3 MHz	2 MHz	AEC-Q100	24-PowerTSSOP	0.173 in 4.4 mm

Catalog

Automotive 5.6V to 40V, 1.2A buck converter with 3 LDOs

Key Features

• Qualified for Automotive ApplicationsAEC-Q100 Qualified with the Following ResultsDevice Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature RangeDevice HBM ESD Classification Level H2Device CDM ESD Classification Level C4BInput VIN Range 5.6 V to 40 V, With Transients up to 45 VAll Outputs Support Ceramic Output Capacitors for StabilitySwitch-Mode Regulator With Integrated High-Side SwitchRecommended Switch-Mode Frequency Range 2 MHz to 3 MHzOvercurrent Protection and 1.2-A Peak Switch CurrentOne Linear Regulators and Two Linear Regulator Controllers With 0.8-V ±1.5% ReferenceStatus Indicator Output of IGN_EN InputSoft Start on Ignition (IGN_EN)/Enable Input (EN) CycleExternal Clock Input for SynchronizationProgrammable Power-On-Reset Delay, Reset-Function Filter Timer for Fast Negative TransientsVoltage Supervisor for the Following SuppliesVREG, 3.3 V, 1.234 VThermal Shutdown Protection for Excessive Power DissipationOperating Junction Temperature Range: –40°C to 150°CThermally Enhanced 24-Pin HTSSOP or 24-Pin VQFN PackageAll trademarks are the property of their respective owners.Qualified for Automotive ApplicationsAEC-Q100 Qualified with the Following ResultsDevice Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature RangeDevice HBM ESD Classification Level H2Device CDM ESD Classification Level C4BInput VIN Range 5.6 V to 40 V, With Transients up to 45 VAll Outputs Support Ceramic Output Capacitors for StabilitySwitch-Mode Regulator With Integrated High-Side SwitchRecommended Switch-Mode Frequency Range 2 MHz to 3 MHzOvercurrent Protection and 1.2-A Peak Switch CurrentOne Linear Regulators and Two Linear Regulator Controllers With 0.8-V ±1.5% ReferenceStatus Indicator Output of IGN_EN InputSoft Start on Ignition (IGN_EN)/Enable Input (EN) CycleExternal Clock Input for SynchronizationProgrammable Power-On-Reset Delay, Reset-Function Filter Timer for Fast Negative TransientsVoltage Supervisor for the Following SuppliesVREG, 3.3 V, 1.234 VThermal Shutdown Protection for Excessive Power DissipationOperating Junction Temperature Range: –40°C to 150°CThermally Enhanced 24-Pin HTSSOP or 24-Pin VQFN PackageAll trademarks are the property of their respective owners.

Description

The TPS65300-Q1 power supply is a combination of a single switch-mode buck power supply and three linear regulators. This device is a monolithic high-voltage switching regulator with an integrated 1.2-A peak current switch, 45-V power MOSFET, and one low-voltage linear regulator and two voltage-regulator controllers. The device has a voltage supervisor which monitors the output of the switch-mode power supply, the3.3-V linear regulator, and the 1.234-V linear regulator. An external timing capacitor is used to set the power-on delay and the release of the reset output nRST. This reset output is also used to indicate if the switch-mode supply, the 3.3-V linear regulator supply, or the 1.234-V linear regulator supply is outside the set limits. The 5-V regulator tracks the 3.3-V linear regulator within the specified limits. The TPS65300-Q1 device has a switching frequency range from 2 MHz to 3 MHz, allowing the use of low-profile inductors and low-value input and output ceramic capacitors. External loop compensation gives the user the flexibility to optimize the converter response for the appropriate operating conditions. This device has built-in protection features such as soft start on IGN_EN ON or enables cycle, pulse-by-pulse current-limit, thermal sensing, and shutdown because of excessive power dissipation. The TPS65300-Q1 power supply is a combination of a single switch-mode buck power supply and three linear regulators. This device is a monolithic high-voltage switching regulator with an integrated 1.2-A peak current switch, 45-V power MOSFET, and one low-voltage linear regulator and two voltage-regulator controllers. The device has a voltage supervisor which monitors the output of the switch-mode power supply, the3.3-V linear regulator, and the 1.234-V linear regulator. An external timing capacitor is used to set the power-on delay and the release of the reset output nRST. This reset output is also used to indicate if the switch-mode supply, the 3.3-V linear regulator supply, or the 1.234-V linear regulator supply is outside the set limits. The 5-V regulator tracks the 3.3-V linear regulator within the specified limits. The TPS65300-Q1 device has a switching frequency range from 2 MHz to 3 MHz, allowing the use of low-profile inductors and low-value input and output ceramic capacitors. External loop compensation gives the user the flexibility to optimize the converter response for the appropriate operating conditions. This device has built-in protection features such as soft start on IGN_EN ON or enables cycle, pulse-by-pulse current-limit, thermal sensing, and shutdown because of excessive power dissipation.