TPS43332 Series
Automotive 2V to 40V Single Boost & Dual Synchronous Buck Controller with Freq. Spread Spectrum
Manufacturer: Texas Instruments
Catalog(1 parts)
| Part | Qualification | Mounting Type | Duty Cycle (Max)▲▼ | Duty Cycle (Max)▲▼ | Frequency - Switching▲▼ | Frequency - Switching▲▼ | Grade | Operating Temperature▲▼ | Operating Temperature▲▼ | Clock Sync▲▼ | Synchronous Rectifier▲▼ | Package / Case▲▼ | Package / Case | Function | Output Configuration | Supplier Device Package | Control Features | Voltage - Supply (Vcc/Vdd)▲▼ | Voltage - Supply (Vcc/Vdd)▲▼ | Number of Outputs▲▼ | Output Type | Topology |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments TPS43332QDAPRQ1Buck, Boost Regulator Positive Output Step-Up, Step-Down DC-DC Controller IC 38-HTSSOP | AEC-Q100 | Surface Mount | 0.8999999761581421 ul | 0.987500011920929 ul | 600000 Hz | 150000 Hz | Automotive | 125 °C | -40 °C | 0.006095999851822853 m, 0.006099999882280827 m | 38-PowerTSSOP | Step-Down, Step-Up | Positive | 38-HTSSOP | Enable, Frequency Control, Power Good, Soft Start, Tracking | 40 V | 4 V | 3 ul | Transistor Driver | Boost, Buck |
Key Features
• Qualified for Automotive ApplicationsAEC-Q100 Qualified With the Following Results:Device Temperature Grade 1: –40°C to 125°CAmbient Operating TemperatureDevice HBM ESD Classification Level 2Device CDM ESD Classification Level C4BTwo Synchronous Buck ControllersOne Pre-Boost ControllerInput Range up to 40 V, (Transients up to 60 V),Operation Down to 2 V When Boost is EnabledLow-Power-Mode IQ: 30 µA (One Buck On), 35 µA(Two Bucks On)Low Shutdown Current Ish< 4 µABuck Output Range 0.9 V to 11 VBoost Output Selectable: 7 V, 10 V, or 11 VProgrammable Frequency and External Synchronization Range150 kHz to 600 kHzSeparate Enable Inputs (ENA, ENB)Frequency Spread Spectrum (TPS43332)Selectable Forced Continuous Mode or Automatic Low-PowerMode at Light LoadsSense Resistor or Inductor DCR SensingOut-of-Phase Switching Between Buck ChannelsPeak Gate-Drive Current 1.5 AThermally Enhanced 38-Pin HTSSOP (DAP) PowerPAD™PackageQualified for Automotive ApplicationsAEC-Q100 Qualified With the Following Results:Device Temperature Grade 1: –40°C to 125°CAmbient Operating TemperatureDevice HBM ESD Classification Level 2Device CDM ESD Classification Level C4BTwo Synchronous Buck ControllersOne Pre-Boost ControllerInput Range up to 40 V, (Transients up to 60 V),Operation Down to 2 V When Boost is EnabledLow-Power-Mode IQ: 30 µA (One Buck On), 35 µA(Two Bucks On)Low Shutdown Current Ish< 4 µABuck Output Range 0.9 V to 11 VBoost Output Selectable: 7 V, 10 V, or 11 VProgrammable Frequency and External Synchronization Range150 kHz to 600 kHzSeparate Enable Inputs (ENA, ENB)Frequency Spread Spectrum (TPS43332)Selectable Forced Continuous Mode or Automatic Low-PowerMode at Light LoadsSense Resistor or Inductor DCR SensingOut-of-Phase Switching Between Buck ChannelsPeak Gate-Drive Current 1.5 AThermally Enhanced 38-Pin HTSSOP (DAP) PowerPAD™Package
Description
AI
The TPS43330-Q1 and TPS43332-Q1 devices (TPS4333x-Q1) include two current-mode synchronous buck controllers and a voltage-mode boost controller. The TPS4333x-Q1 family of devices is ideally suited as a pre-regulator stage with low IQrequirements and for applications that must survive supply drops due to cranking events. The integrated boost controller allows the devices to operate down to 2 V at the input without seeing a drop on the buck regulator output stages. At light loads, the buck controllers can be enabled to operate automatically in low-power mode, consuming just 30 µA of quiescent current.
The buck controllers have independent soft-start capability and power-good indicators. Current foldback in the buck controllers and cycle-by-cycle current limitation in the boost controller provide external MOSFET protection. The switching frequency can be programed over 150 kHz to 600 kHz or synchronized to an external clock in the same range. Additionally, the TPS43332-Q1 device offers frequency-hopping spread-spectrum operation.
The TPS43330-Q1 and TPS43332-Q1 devices (TPS4333x-Q1) include two current-mode synchronous buck controllers and a voltage-mode boost controller. The TPS4333x-Q1 family of devices is ideally suited as a pre-regulator stage with low IQrequirements and for applications that must survive supply drops due to cranking events. The integrated boost controller allows the devices to operate down to 2 V at the input without seeing a drop on the buck regulator output stages. At light loads, the buck controllers can be enabled to operate automatically in low-power mode, consuming just 30 µA of quiescent current.
The buck controllers have independent soft-start capability and power-good indicators. Current foldback in the buck controllers and cycle-by-cycle current limitation in the boost controller provide external MOSFET protection. The switching frequency can be programed over 150 kHz to 600 kHz or synchronized to an external clock in the same range. Additionally, the TPS43332-Q1 device offers frequency-hopping spread-spectrum operation.