TPS43340-Q1 Series

Automotive 4V to 40V dual synchronous buck controller, 2A buck converter, and 300mA LDO

Catalog

Automotive 4V to 40V dual synchronous buck controller, 2A buck converter, and 300mA LDO

Part	Voltage - Output	Supplied Contents	Current - Output	Board Type	Utilized IC / Part	Regulator Topology	Voltage - Input [Min]	Voltage - Input [Max]	Main Purpose	Outputs and Type	Outputs and Type	Operating Temperature [Max]	Operating Temperature [Min]	Number of Outputs	Grade	Voltage/Current - Output 1	Supplier Device Package	Frequency - Switching [Min]	Frequency - Switching [Max]	Qualification	Voltage/Current - Output 2	Package / Case	Voltage/Current - Output 3	Voltage/Current - Output 3	w/Sequencer	Voltage - Supply [Max]	Voltage - Supply [Min]	Topology	w/LED Driver	w/Supervisor	Mounting Type
Texas Instruments TPS43340EVM	1.8 V 3.3 V 5 V	Board(s)	2.2 A 4.5 A 300 mA	Fully Populated	TPS43340	Buck	4 V	40 V	DC/DC Step Down with LDO	4	Non-Isolated
Texas Instruments TPS43340QPHPRQ1												125 °C	-40 °C	4	Automotive	Controller	48-HTQFP (7x7)	150 kHz	600 kHz	AEC-Q100	Controller	48-PowerTQFP	Adjustable	2 A		40 VDC	4 V	Linear (LDO) (1) Step-Down (Buck) Synchronous (3)			Surface Mount

Catalog

Automotive 4V to 40V dual synchronous buck controller, 2A buck converter, and 300mA LDO

Key Features

• Qualified for Automotive ApplicationsAEC-Q100 Test Guidance With the Following Results:Device Temperature Grade 1: –40°C to 125°C Ambient Operating TemperatureDevice HBM ESD Classification Level H1CDevice CDM ESD Classification Level C3BInput Range up to 40 V, (Transients up to 60 V)Input Voltage Range: 4 V to 40 VTransients up to 60 VDual-Output Synchronous Buck ControllerPeak Gate Drive Current 0.6 AAutomatic Low-Power Mode OperationLow-Power-Mode IQ: 30 µA (One Buck On), 35 µA (Two Bucks On)Low Shutdown Current, Ish= 5 μA TypicalSingle Synchronous Buck Regulator Converter BUCK3Max Output Current 2 ALinear Regulator LREG1Separate Enable Inputs (EN1, EN2, EN3, EN4)Internal Oscillator, Programmable via External Resistor, 150 kHz to 600 kHz for Switching Frequency fSW_BUCK1,2,3Integrated PLL, External Synchronization Frequency: 150 kHz to 600 kHzSwitch-Mode Regulators Operate With 180° Phase-ShiftReset Output for All Output RailsSupply and Overvoltage Detection and ShutdownThermally Enhanced PowerPAD Package48-Pin HTQFP (PHP)All trademarks are the property of their respective owners.Qualified for Automotive ApplicationsAEC-Q100 Test Guidance With the Following Results:Device Temperature Grade 1: –40°C to 125°C Ambient Operating TemperatureDevice HBM ESD Classification Level H1CDevice CDM ESD Classification Level C3BInput Range up to 40 V, (Transients up to 60 V)Input Voltage Range: 4 V to 40 VTransients up to 60 VDual-Output Synchronous Buck ControllerPeak Gate Drive Current 0.6 AAutomatic Low-Power Mode OperationLow-Power-Mode IQ: 30 µA (One Buck On), 35 µA (Two Bucks On)Low Shutdown Current, Ish= 5 μA TypicalSingle Synchronous Buck Regulator Converter BUCK3Max Output Current 2 ALinear Regulator LREG1Separate Enable Inputs (EN1, EN2, EN3, EN4)Internal Oscillator, Programmable via External Resistor, 150 kHz to 600 kHz for Switching Frequency fSW_BUCK1,2,3Integrated PLL, External Synchronization Frequency: 150 kHz to 600 kHzSwitch-Mode Regulators Operate With 180° Phase-ShiftReset Output for All Output RailsSupply and Overvoltage Detection and ShutdownThermally Enhanced PowerPAD Package48-Pin HTQFP (PHP)All trademarks are the property of their respective owners.

Description

The TPS43340-Q1 is a quad rail power supply featuring two synchronous Buck Controller with 0.6-A gate drive, one synchronous 2-A Buck Converter and a 300-mA LDO with low quiescent current. The device is designed to power the entire system including MCU and DSP straight from the car battery respectively input voltages up to 40 V. The device features integrated short-circuit and overcurrent protection on the gate-drive outputs for the buck regulator controllers and independent current-foldback control for each buck regulator supply during regulator output short to ground. Each output supply incorporates a soft start to ensure that on initial power up these regulated outputs are not in current limit. Implementation of reset delay on power up allows the outputs of Buck1, Buck2, Buck3 and the linear regulator to get to stable regulation. An external capacitor sets the delay to a maximum range of 300 ms. Each power-supply output has adjustable output voltage based on the external resistor-network settings. The device has sequencing control during power up and power down of the output rails, based on the enable-and-disable control or soft start. The TPS43340-Q1 is a quad rail power supply featuring two synchronous Buck Controller with 0.6-A gate drive, one synchronous 2-A Buck Converter and a 300-mA LDO with low quiescent current. The device is designed to power the entire system including MCU and DSP straight from the car battery respectively input voltages up to 40 V. The device features integrated short-circuit and overcurrent protection on the gate-drive outputs for the buck regulator controllers and independent current-foldback control for each buck regulator supply during regulator output short to ground. Each output supply incorporates a soft start to ensure that on initial power up these regulated outputs are not in current limit. Implementation of reset delay on power up allows the outputs of Buck1, Buck2, Buck3 and the linear regulator to get to stable regulation. An external capacitor sets the delay to a maximum range of 300 ms. Each power-supply output has adjustable output voltage based on the external resistor-network settings. The device has sequencing control during power up and power down of the output rails, based on the enable-and-disable control or soft start.