TPS56428DDAR
Active4.5V TO 18V INPUT, 4-A SYNCHRONOUS STEP-DOWN CONVERTER WITH ADVANCED ECO-MODE™
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TPS56428DDAR
Active4.5V TO 18V INPUT, 4-A SYNCHRONOUS STEP-DOWN CONVERTER WITH ADVANCED ECO-MODE™
Technical Specifications
Parameters and characteristics for this part
| Specification | TPS56428DDAR |
|---|---|
| Current - Output | 4 A |
| Frequency - Switching | 650 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 | Adjustable |
| Package / Case | 8-PowerSOIC |
| Package / Case [x] | 0.154 in |
| Package / Case [y] | 3.9 mm |
| Supplier Device Package | 8-SO PowerPad |
| Synchronous Rectifier | True |
| Topology | Buck |
| Voltage - Input (Max) [Max] | 18 V |
| Voltage - Input (Min) [Min] | 4.5 V |
| Voltage - Output (Max) [Max] | 7 V |
| Voltage - Output (Min/Fixed) | 0.6 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 | $ 1.39 | |
| 10 | $ 1.25 | |||
| 25 | $ 1.18 | |||
| 100 | $ 0.97 | |||
| 250 | $ 0.91 | |||
| 500 | $ 0.80 | |||
| 1000 | $ 0.63 | |||
| Digi-Reel® | 1 | $ 1.39 | ||
| 10 | $ 1.25 | |||
| 25 | $ 1.18 | |||
| 100 | $ 0.97 | |||
| 250 | $ 0.91 | |||
| 500 | $ 0.80 | |||
| 1000 | $ 0.63 | |||
| Tape & Reel (TR) | 2500 | $ 0.59 | ||
| 5000 | $ 0.56 | |||
| 12500 | $ 0.54 | |||
| Texas Instruments | LARGE T&R | 1 | $ 1.03 | |
| 100 | $ 0.79 | |||
| 250 | $ 0.58 | |||
| 1000 | $ 0.42 | |||
Description
General part information
TPS56428 Series
The TPS56428 is a D-CAP2 mode synchronous buck converter which is optimized for various power bus regulation needs with a cost effective, low component count, low standby current solution.
The D-CAP2 mode control provides a fast transient response with no external compensation components. This adaptive on-time control supports seamless transition between PWM mode at higher load conditions and advanced Eco-mode operation at light loads. Advanced Eco-mode™ maintains higher efficiency during lighter load conditions than traditional skip mode.
The TPS56428 also has a proprietary circuit to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from 4.5-V to 18 V VIN input and its output voltage can be programmed between 0.6V and 7.0V. The device also features a fixed 1-ms soft start and a power-good output.
