TPS43331 Series
Automotive 5V to 30V Dual LDO & Dual Synchronous Buck Controller
Manufacturer: Texas Instruments
Catalog(1 parts)
| Part | Mounting Type | Qualification | Package / Case▲▼ | Package / Case | Voltage/Current - Output 3▲▼ | Voltage/Current - Output 3▲▼ | Voltage/Current - Output 3▲▼ | Supplier Device Package | w/Sequencer▲▼ | Frequency - Switching▲▼ | Voltage - Supply▲▼ | Voltage - Supply▲▼ | Voltage/Current - Output 1 | Operating Temperature▲▼ | Operating Temperature▲▼ | Grade | Voltage/Current - Output 2 | w/Supervisor▲▼ | Topology | Number of Outputs▲▼ | w/LED Driver▲▼ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments TPS43331QDAPRQ1PMIC - Voltage Regulators - Linear Switching 4 Output Step-Down (Buck) Synchronous (2), Linear (LDO) (2) 165kHz 38-HTSSOP | Surface Mount | AEC-Q100 | 0.006095999851822853 m, 0.006099999882280827 m | 38-PowerTSSOP | 0.6499999761581421 A | 8.5 V | 1.2000000476837158 V | 38-HTSSOP | 165000 Hz | 30 V | 1.7999999523162842 V | Controller | 125 °C | -40 °C | Automotive | Controller | Linear (LDO) (2), Step-Down (Buck) Synchronous (2) | 4 ul |
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
AI
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.