TPS54426RSAR
Active4.5V TO 18V INPUT, 4A SYNCHRONOUS STEP-DOWN CONVERTER WITH ECO-MODE™
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TPS54426RSAR
Active4.5V TO 18V INPUT, 4A SYNCHRONOUS STEP-DOWN CONVERTER WITH ECO-MODE™
Technical Specifications
Parameters and characteristics for this part
| Specification | TPS54426RSAR |
|---|---|
| Current - Output | 4 A |
| Frequency - Switching | 700 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 | 16-VQFN Exposed Pad |
| Supplier Device Package | 16-QFN (4X4) |
| Synchronous Rectifier | True |
| Topology | Buck |
| Voltage - Input (Max) [Max] | 18 V |
| Voltage - Input (Min) [Min] | 4.5 V |
| Voltage - Output (Max) [Max] | 5.5 V |
| Voltage - Output (Min/Fixed) | 0.76 V |
TPS54426 Series
4.5V to 18V Input, 4A Synchronous Step-Down Converter with Eco-Mode™
| Part | Voltage - Output (Max) [Max] | Topology | Output Type | Mounting Type | Package / Case | Voltage - Output (Min/Fixed) | Function | Supplier Device Package | Synchronous Rectifier | Number of Outputs | Frequency - Switching | Operating Temperature [Max] | Operating Temperature [Min] | Voltage - Input (Min) [Min] | Voltage - Input (Max) [Max] | Current - Output | Output Configuration | Supplied Contents | Outputs and Type | Outputs and Type | Board Type | Regulator Topology | Voltage - Output | Voltage - Input [Max] | Voltage - Input [Min] | Contents | Main Purpose |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments | 5.5 V | Buck | Adjustable | Surface Mount | 16-VQFN Exposed Pad | 0.76 V | Step-Down | 16-QFN (4X4) | 1 | 700 kHz | 85 C | -40 ¯C | 4.5 V | 18 V | 4 A | Positive | |||||||||||
Texas Instruments | 5.5 V | Buck | Adjustable | Surface Mount | 16-VQFN Exposed Pad | 0.76 V | Step-Down | 16-QFN (4X4) | 1 | 700 kHz | 85 C | -40 ¯C | 4.5 V | 18 V | 4 A | Positive | |||||||||||
 Texas Instruments | 5.5 V | Buck | Adjustable | Surface Mount | 14-PowerTSSOP (0.173" 4.40mm Width) | 0.76 V | Step-Down | 14-HTSSOP | 1 | 700 kHz | 85 C | -40 ¯C | 4.5 V | 18 V | 4 A | Positive | |||||||||||
 Texas Instruments | 5.5 V | Buck | Adjustable | Surface Mount | 14-PowerTSSOP (0.173" 4.40mm Width) | 0.76 V | Step-Down | 14-HTSSOP | 1 | 700 kHz | 85 C | -40 ¯C | 4.5 V | 18 V | 4 A | Positive | |||||||||||
 Texas Instruments | 700 kHz | 4 A | Board(s) | 1 | 1 Non-Isolated Output Non-Isolated | Fully Populated | Buck | 1.05 V | 18 V | 4.5 V | Board(s) | DC/DC Step Down |
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 | $ 2.18 | |
| 10 | $ 1.95 | |||
| 25 | $ 1.84 | |||
| 100 | $ 1.57 | |||
| 250 | $ 1.47 | |||
| 500 | $ 1.29 | |||
| 1000 | $ 1.07 | |||
| Digi-Reel® | 1 | $ 2.18 | ||
| 10 | $ 1.95 | |||
| 25 | $ 1.84 | |||
| 100 | $ 1.57 | |||
| 250 | $ 1.47 | |||
| 500 | $ 1.29 | |||
| 1000 | $ 1.07 | |||
| N/A | 3396 | $ 2.25 | ||
| Tape & Reel (TR) | 3000 | $ 0.91 | ||
| Texas Instruments | LARGE T&R | 1 | $ 1.64 | |
| 100 | $ 1.35 | |||
| 250 | $ 0.97 | |||
| 1000 | $ 0.73 | |||
Description
General part information
TPS54426 Series
The TPS54426 is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54426 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 TPS54426 uses the D-CAP2™ mode control which provides a very fast transient response with no external compensation components. The adaptive on-time control supports seamless transition between PWM mode at higher load conditions and Eco-mode™ operation at light loads. Eco-mode™ allows the TPS54426 to maintain high efficiency during lighter load conditions. The TPS54426 also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP, SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from 4.5-V to 18-V VIN input. The output voltage can be programmed between 0.76 V and 5.5 V. The device also features an adjustable soft start time and a power good function. The TPS54426 is available in the 14-pin HTSSOP package and the 16 pin QFN package, designed to operate from –40°C to 85°C.
The TPS54426 is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54426 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 TPS54426 uses the D-CAP2™ mode control which provides a very fast transient response with no external compensation components. The adaptive on-time control supports seamless transition between PWM mode at higher load conditions and Eco-mode™ operation at light loads. Eco-mode™ allows the TPS54426 to maintain high efficiency during lighter load conditions. The TPS54426 also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP, SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from 4.5-V to 18-V VIN input. The output voltage can be programmed between 0.76 V and 5.5 V. The device also features an adjustable soft start time and a power good function. The TPS54426 is available in the 14-pin HTSSOP package and the 16 pin QFN package, designed to operate from –40°C to 85°C.
Documents
Technical documentation and resources