TPS5403DR
Active4.5V TO 28V INPUT, 3.3V, 1.7A OUTPUT, NON-SYNCHRONOUS STEP-DOWN REGULATOR WITH INTEGRATED MOSFET
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TPS5403DR
Active4.5V TO 28V INPUT, 3.3V, 1.7A OUTPUT, NON-SYNCHRONOUS STEP-DOWN REGULATOR WITH INTEGRATED MOSFET
Technical Specifications
Parameters and characteristics for this part
| Specification | TPS5403DR |
|---|---|
| Current - Output | 1.7 A |
| Frequency - Switching [Max] | 1.1 MHz |
| Frequency - Switching [Min] | 50 kHz |
| Function | Step-Down |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | Positive |
| Output Type | 1.81 mOhm |
| Package / Case | 8-SOIC |
| Package / Case [x] | 0.154 in |
| Package / Case [y] | 3.9 mm |
| Supplier Device Package | 8-SOIC |
| Synchronous Rectifier | False |
| Topology | Buck |
| Voltage - Input (Max) [Max] | 28 V |
| Voltage - Input (Min) [Min] | 4.5 V |
| Voltage - Output (Min/Fixed) | 3.3 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 | $ 1.80 | |
| 10 | $ 1.62 | |||
| 25 | $ 1.53 | |||
| 100 | $ 1.30 | |||
| 250 | $ 1.22 | |||
| 500 | $ 1.07 | |||
| 1000 | $ 0.89 | |||
| Digi-Reel® | 1 | $ 1.80 | ||
| 10 | $ 1.62 | |||
| 25 | $ 1.53 | |||
| 100 | $ 1.30 | |||
| 250 | $ 1.22 | |||
| 500 | $ 1.07 | |||
| 1000 | $ 0.89 | |||
| Tape & Reel (TR) | 2500 | $ 0.82 | ||
| 5000 | $ 0.79 | |||
| 12500 | $ 0.76 | |||
| Texas Instruments | LARGE T&R | 1 | $ 1.35 | |
| 100 | $ 1.12 | |||
| 250 | $ 0.80 | |||
| 1000 | $ 0.60 | |||
Description
General part information
TPS5403 Series
The TPS5403 is a monolithic non-synchronous buck regulator with wide operating input voltage range from 4.5 V to 28 V. Current mode control with internal slope compensation is implemented to reduce component count.
TPS5403 also features a light load pulse skipping mode, which allows for a power loss reduction from the input power supply to the system at light loading.
The switching frequency of the converters can be set from 50 kHz to 1.1 MHz with an external resistor. Frequency spread spectrum operation is introduced for EMI reduction.
Documents
Technical documentation and resources