TPS57040QDGQRQ1
ActiveAUTOMOTIVE 3.5V TO 42V, 500MA BUCK CONVERTER WITH ECO-MODE™
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TPS57040QDGQRQ1
ActiveAUTOMOTIVE 3.5V TO 42V, 500MA BUCK CONVERTER WITH ECO-MODE™
Technical Specifications
Parameters and characteristics for this part
| Specification | TPS57040QDGQRQ1 |
|---|---|
| Current - Output | 500 mA |
| Frequency - Switching [Max] | 2.5 MHz |
| Frequency - Switching [Min] | 100 kHz |
| Function | Step-Down |
| Grade | Automotive |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 150 °C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Package / Case | 10-PowerTFSOP, 10-MSOP |
| Package / Case | 3 mm, 0.118 in |
| Qualification | AEC-Q100 |
| Supplier Device Package | 10-HVSSOP |
| Synchronous Rectifier | False |
| Topology | Buck |
| Voltage - Input (Max) [Max] | 42 V |
| Voltage - Input (Min) [Min] | 3.5 V |
| Voltage - Output (Max) [Max] | 39 V |
| Voltage - Output (Min/Fixed) | 0.8 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 2.71 | |
| 10 | $ 2.44 | |||
| 25 | $ 2.30 | |||
| 100 | $ 1.96 | |||
| 250 | $ 1.84 | |||
| 500 | $ 1.61 | |||
| 1000 | $ 1.33 | |||
| Digi-Reel® | 1 | $ 2.71 | ||
| 10 | $ 2.44 | |||
| 25 | $ 2.30 | |||
| 100 | $ 1.96 | |||
| 250 | $ 1.84 | |||
| 500 | $ 1.61 | |||
| 1000 | $ 1.33 | |||
| Tape & Reel (TR) | 2500 | $ 1.24 | ||
| 5000 | $ 1.20 | |||
| Texas Instruments | LARGE T&R | 1 | $ 1.94 | |
| 100 | $ 1.60 | |||
| 250 | $ 1.15 | |||
| 1000 | $ 0.86 | |||
Description
General part information
TPS57040-Q1 Series
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.
Documents
Technical documentation and resources
