TPS43331-Q1 Series

Automotive 5V to 30V Dual LDO & Dual Synchronous Buck Controller

Catalog

Automotive 5V to 30V Dual LDO & Dual Synchronous Buck Controller

Part	w/Sequencer	Voltage/Current - Output 1	Qualification	Voltage - Supply [Max]	Voltage - Supply [Min]	Operating Temperature [Max]	Operating Temperature [Min]	Number of Outputs	Package / Case	Package / Case	Package / Case	Frequency - Switching	w/Supervisor	Grade	Mounting Type	Voltage/Current - Output 3 [Max]	Voltage/Current - Output 3	Voltage/Current - Output 3 [Min]	Supplier Device Package	Voltage/Current - Output 2	w/LED Driver	Topology
Texas Instruments TPS43331QDAPRQ1		Controller	AEC-Q100	30 VDC	1.8 V	125 °C	-40 °C	4	0.24 in	6.1 mm	38-PowerTSSOP	165 kHz		Automotive	Surface Mount	8.5 V	650 mA	1.2 V	38-HTSSOP	Controller		Linear (LDO) (2) Step-Down (Buck) Synchronous (2)

Catalog

Automotive 5V to 30V Dual LDO & Dual Synchronous Buck Controller

Key Features

• Qualified for Automotive ApplicationsAEC-Q100 Qualified With the Following Results:Device Temperature Grade 1: –40°C to +125°C Ambient Operating TemperatureDevice HBM ESD Classification Level 2Input Operating Range 5 V to 30 V (VBAT)Two, Adjustable Output Voltage, Step-Down Switching Voltage RegulatorsExternal Clock InputSoft-Start Control for Step-Down RegulatorsProgrammable, Linear Regulator (VSTBY), Low Quiescent Current (65 µA typ)Programmable, Linear Regulator (VLR)Overvoltage Detection and ShutdownProtected, High-Side Drive Ouput (HSD)Power-On Reset for Standby Regulator (VSTBY)Serial Communication, I2C InterfaceLow Voltage Warning Detection With Programmable Input Threshold (LVWIN,VBATW)Enable Feature, Controls VBUCK 1Programmable Power Good Delay Time (PGDLY) for VSTBYCurrent-Limit and Independent Thermal Detection and Shutdown Protection on All Regulators and High-Side Driver OutputThermally Enhanced 38-Pin DAP PowerPAD™ PackageQualified for Automotive ApplicationsAEC-Q100 Qualified With the Following Results:Device Temperature Grade 1: –40°C to +125°C Ambient Operating TemperatureDevice HBM ESD Classification Level 2Input Operating Range 5 V to 30 V (VBAT)Two, Adjustable Output Voltage, Step-Down Switching Voltage RegulatorsExternal Clock InputSoft-Start Control for Step-Down RegulatorsProgrammable, Linear Regulator (VSTBY), Low Quiescent Current (65 µA typ)Programmable, Linear Regulator (VLR)Overvoltage Detection and ShutdownProtected, High-Side Drive Ouput (HSD)Power-On Reset for Standby Regulator (VSTBY)Serial Communication, I2C InterfaceLow Voltage Warning Detection With Programmable Input Threshold (LVWIN,VBATW)Enable Feature, Controls VBUCK 1Programmable Power Good Delay Time (PGDLY) for VSTBYCurrent-Limit and Independent Thermal Detection and Shutdown Protection on All Regulators and High-Side Driver OutputThermally Enhanced 38-Pin DAP PowerPAD™ Package

Description

The TPS43331-Q1 is a multi-rail output voltage regulator, with two synchronous switch mode controllers and two linear regulators. In addition, there is a reverse protected high side switch and voltage supervisor for monitoring the standby regulator and input voltage. The regulator outputs and high side switch are controlled either by discrete inputs for certain outputs and serial interface using the I2C configuration for outputs not controlled by discrete inputs. The standby linear regulator (VSTBY) is high voltage tolerant and can be connected directly to the vehicle battery, the quiescent current is typically 65 µA to maintain a regulated output with light loads. The TPS43331-Q1 is a multi-rail output voltage regulator, with two synchronous switch mode controllers and two linear regulators. In addition, there is a reverse protected high side switch and voltage supervisor for monitoring the standby regulator and input voltage. The regulator outputs and high side switch are controlled either by discrete inputs for certain outputs and serial interface using the I2C configuration for outputs not controlled by discrete inputs. The standby linear regulator (VSTBY) is high voltage tolerant and can be connected directly to the vehicle battery, the quiescent current is typically 65 µA to maintain a regulated output with light loads.