TPS54326PWP
Active4.5V TO 18V INPUT, 3A SYNCHRONOUS STEP-DOWN CONVERTER WITH ECO-MODE™
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TPS54326PWP
Active4.5V TO 18V INPUT, 3A SYNCHRONOUS STEP-DOWN CONVERTER WITH ECO-MODE™
Technical Specifications
Parameters and characteristics for this part
| Specification | TPS54326PWP |
|---|---|
| Current - Output | 3 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 | 14-PowerTSSOP |
| Package / Case [x] | 0.173 in |
| Package / Case [y] | 4.4 mm |
| Supplier Device Package | 14-HTSSOP |
| Synchronous Rectifier | True |
| Topology | Buck |
| Voltage - Input (Max) [Max] | 18 V |
| Voltage - Input (Min) [Min] | 2 V |
| Voltage - Output (Max) [Max] | 5.5 V |
| Voltage - Output (Min/Fixed) | 0.76 V |
TPS54326 Series
4.5V to 18V Input, 3A Synchronous Step-Down Converter with Eco-Mode™
| Part | Number of Outputs | Voltage - Input (Max) [Max] | Output Type | Synchronous Rectifier | Frequency - Switching | Voltage - Output (Max) [Max] | Topology | Current - Output | Voltage - Output (Min/Fixed) | Operating Temperature [Max] | Operating Temperature [Min] | Package / Case | Output Configuration | Voltage - Input (Min) [Min] | Supplier Device Package | Function | Mounting Type | Package / Case [y] | Package / Case [x] | Main Purpose | Regulator Topology | Utilized IC / Part | Supplied Contents | Voltage - Output | Voltage - Input [Max] | Voltage - Input [Min] | Outputs and Type | Outputs and Type | Board Type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 Texas Instruments | 1 | 18 V | Adjustable | 700 kHz | 5.5 V | Buck | 3 A | 0.76 V | 85 °C | -40 °C | 16-VFQFN Exposed Pad | Positive | 2 V | 16-VQFN (3x3) | Step-Down | Surface Mount | |||||||||||||
Texas Instruments | 1 | 18 V | Adjustable | 700 kHz | 5.5 V | Buck | 3 A | 0.76 V | 85 °C | -40 °C | 14-PowerTSSOP | Positive | 2 V | 14-HTSSOP | Step-Down | Surface Mount | 4.4 mm | 0.173 in | |||||||||||
 Texas Instruments | 1 | 18 V | Adjustable | 700 kHz | 5.5 V | Buck | 3 A | 0.76 V | 85 °C | -40 °C | 14-PowerTSSOP | Positive | 2 V | 14-HTSSOP | Step-Down | Surface Mount | 4.4 mm | 0.173 in | |||||||||||
 Texas Instruments | 700 kHz | 3 A | DC/DC Step Down | Buck | TPS54326 | Board(s) | 1.05 V | 18 V | 4.5 V | Non-Isolated | 1 | Fully Populated |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tube | 1 | $ 2.56 | |
| 10 | $ 2.30 | |||
| 90 | $ 1.85 | |||
| 270 | $ 1.74 | |||
| 540 | $ 1.52 | |||
| 1080 | $ 1.26 | |||
| 2520 | $ 1.17 | |||
| 5040 | $ 1.13 | |||
| Texas Instruments | TUBE | 1 | $ 1.93 | |
| 100 | $ 1.59 | |||
| 250 | $ 1.14 | |||
| 1000 | $ 0.86 | |||
Description
General part information
TPS54326 Series
The TPS54326 is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54326 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 TPS54326 uses the D-CAP2™ mode control which provides a fast transient response with no external components. The adoptive on-time control supports seamless operation between PWM mode at heavy load condition and reduced frequency Eco-mode operation at light load for high efficiency.
The TPS54326 also has a proprietary circuit that enables the device to adapt 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 VCCinput , and from 2-V to 18-V VIN input power supply voltage. The output voltage can be programmed between 0.76 V and 5.5 V. The device also features an adjustable slow start time and a power good function. The TPS54326 is available in the 14 pin HTSSOP or 16 pin QFN package, and designed to operate from –40°C to 85°C.
The TPS54326 is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54326 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 TPS54326 uses the D-CAP2™ mode control which provides a fast transient response with no external components. The adoptive on-time control supports seamless operation between PWM mode at heavy load condition and reduced frequency Eco-mode operation at light load for high efficiency.
Documents
Technical documentation and resources