TPS54427DDAR
Active4.5V TO 18V INPUT, 4-A SYNCHRONOUS STEP-DOWN CONVERTER
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TPS54427DDAR
Active4.5V TO 18V INPUT, 4-A SYNCHRONOUS STEP-DOWN CONVERTER
Technical Specifications
Parameters and characteristics for this part
| Specification | TPS54427DDAR |
|---|---|
| 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) | 0.76 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 | $ 1.65 | |
| 10 | $ 1.48 | |||
| 25 | $ 1.40 | |||
| 100 | $ 1.15 | |||
| 250 | $ 1.07 | |||
| 500 | $ 0.95 | |||
| 1000 | $ 0.75 | |||
| Digi-Reel® | 1 | $ 1.65 | ||
| 10 | $ 1.48 | |||
| 25 | $ 1.40 | |||
| 100 | $ 1.15 | |||
| 250 | $ 1.07 | |||
| 500 | $ 0.95 | |||
| 1000 | $ 0.75 | |||
| Tape & Reel (TR) | 2500 | $ 0.70 | ||
| 5000 | $ 0.66 | |||
| 12500 | $ 0.64 | |||
| Texas Instruments | LARGE T&R | 1 | $ 1.22 | |
| 100 | $ 0.94 | |||
| 250 | $ 0.69 | |||
| 1000 | $ 0.49 | |||
Description
General part information
TPS54427 Series
The TPS54427 is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54427 enables system designers to complete the suite of various end equipment’s power bus regulators with a cost effective, low component count, low standby current solution.
The main control loop for the TPS54427 uses the D-CAP2™ mode control which provides a fast transient response with no external compensation components.
The TPS54427 also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors.
Documents
Technical documentation and resources
