TPS57040 Series
Automotive 3.5V to 42V, 500mA Buck Converter with Eco-Mode™
Manufacturer: Texas Instruments
Catalog(1 parts)
| Part | Operating Temperature▲▼ | Operating Temperature▲▼ | Function | Frequency - Switching▲▼ | Frequency - Switching▲▼ | Voltage - Output (Max)▲▼ | Voltage - Input (Max)▲▼ | Voltage - Output (Min/Fixed)▲▼ | Mounting Type | Current - Output▲▼ | Output Type | Supplier Device Package | Output Configuration | Package / Case | Topology | Synchronous Rectifier▲▼ | Voltage - Input (Min)▲▼ | Qualification | Grade | Number of Outputs▲▼ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments TPS57040QDGQRQ1Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 500mA 10-PowerTFSOP, 10-MSOP (0.118", 3.00mm Width) | 150 °C | -40 °C | Step-Down | 100000 Hz | 2500000 Hz | 39 V | 42 V | 0.800000011920929 V | Surface Mount | 0.5 A | Adjustable | 10-HVSSOP | Positive | 10-MSOP, 10-PowerTFSOP | Buck | 3.5 V | AEC-Q100 | Automotive | 1 ul |
Key Features
• Qualified for Automotive ApplicationsAEC-Q100 Qualified With the Following ResultsDevice Temperature Grade 1: –40°C to 125°CAmbient Operating Temperature RangeDevice HBM ESD Classification Level 2Device CDM ESD Classification Level C4B3.5-V to 42-V Input Voltage Range200-mΩ High-Side MOSFETHigh Efficiency at Light Loads with a PulseSkipping Eco-mode™ Control Scheme116-µA Operating Quiescent Current1.5-µA Shutdown Current100-kHz to 2.5-MHz Switching FrequencySynchronizes to External ClockAdjustable Slow Start/SequencingUndervoltage and Overvoltage Power-good OutputAdjustable Undervoltage Lockout Voltage and Hysteresis0.8-V Internal Voltage ReferenceSupported by SwitcherPro™ Software Tool(http://focus.ti.com/docs/toolsw/folders/print/switcherpro.html)Qualified for Automotive ApplicationsAEC-Q100 Qualified With the Following ResultsDevice Temperature Grade 1: –40°C to 125°CAmbient Operating Temperature RangeDevice HBM ESD Classification Level 2Device CDM ESD Classification Level C4B3.5-V to 42-V Input Voltage Range200-mΩ High-Side MOSFETHigh Efficiency at Light Loads with a PulseSkipping Eco-mode™ Control Scheme116-µA Operating Quiescent Current1.5-µA Shutdown Current100-kHz to 2.5-MHz Switching FrequencySynchronizes to External ClockAdjustable Slow Start/SequencingUndervoltage and Overvoltage Power-good OutputAdjustable Undervoltage Lockout Voltage and Hysteresis0.8-V Internal Voltage ReferenceSupported by SwitcherPro™ Software Tool(http://focus.ti.com/docs/toolsw/folders/print/switcherpro.html)
Description
AI
The TPS57040-Q1 device is a 42-V 0.5-A step-down regulator with an integrated high-side MOSFET. Current mode control provides simple external compensation and flexible component selection. A low-ripple pulse-skip mode reduces the no load, input supply current to 116 µA. Using the enable pin, shutdown supply current is reduced to 1.5 µA, when the enable pin is low.
Undervoltage lockout is internally set at 2.5 V, but can be increased using the enable pin. The output voltage startup ramp is controlled by the slow start pin that can also be configured for sequencing/tracking. An open drain power-good signal indicates the output is within 92% to 109% of its nominal voltage.
A wide switching frequency range allows efficiency and external component size to be optimized. Frequency fold back and thermal shutdown protects the part during an overload condition.
The TPS57040-Q1 is available in a 10-pin thermally enhanced MSOP PowerPAD™ package (DGQ) and a 10-pin SON package (DRC).
The TPS57040-Q1 device is a 42-V 0.5-A step-down regulator with an integrated high-side MOSFET. Current mode control provides simple external compensation and flexible component selection. A low-ripple pulse-skip mode reduces the no load, input supply current to 116 µA. Using the enable pin, shutdown supply current is reduced to 1.5 µA, when the enable pin is low.
Undervoltage lockout is internally set at 2.5 V, but can be increased using the enable pin. The output voltage startup ramp is controlled by the slow start pin that can also be configured for sequencing/tracking. An open drain power-good signal indicates the output is within 92% to 109% of its nominal voltage.
A wide switching frequency range allows efficiency and external component size to be optimized. Frequency fold back and thermal shutdown protects the part during an overload condition.
The TPS57040-Q1 is available in a 10-pin thermally enhanced MSOP PowerPAD™ package (DGQ) and a 10-pin SON package (DRC).