TPS543320 Series
4-V to 18-V, 3-A synchronous SWIFT™ step-down converter
Manufacturer: Texas Instruments
Catalog(2 parts)
| Part | Outputs and Type | Outputs and Type▲▼ | Voltage - Output▲▼ | Voltage - Input▲▼ | Voltage - Input▲▼ | Board Type | Utilized IC / Part | Frequency - Switching▲▼ | Main Purpose | Current - Output▲▼ | Supplied Contents | Mounting Type | Package / Case | Supplier Device Package | Topology | Voltage - Output (Min/Fixed)▲▼ | Output Configuration | Voltage - Input (Min)▲▼ | Function | Number of Outputs▲▼ | Voltage - Input (Max)▲▼ | Operating Temperature▲▼ | Operating Temperature▲▼ | Output Type | Synchronous Rectifier▲▼ | Voltage - Output (Max)▲▼ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments TPS543320EVMTPS543320 SWIFT™ DC/DC, Step Down 1, Non-Isolated Outputs Evaluation Board | Non-Isolated | 1 ul | 1.7999999523162842 V | 18 V | 4 V | Fully Populated | TPS543320 | 1500000 Hz | DC/DC, Step Down | 3 A | Board(s) | |||||||||||||||
Texas Instruments TPS543320RPYRBuck Switching Regulator IC Positive Adjustable 0.5V 1 Output 3A 14-PowerVFQFN | 500000 Hz, 750000 Hz, 1000000 Hz, 1500000 Hz, 2200000 Hz | 3 A | Surface Mount | 14-PowerVFQFN | 14-VQFN-HR (2.5x3) | Buck | 0.5 V | Positive | 4 V | Step-Down | 1 ul | 18 V | 150 °C | -40 °C | Adjustable | 5.5 V |
Key Features
• Fixed-frequency, internally-compensated advanced current mode (ACM) controlIntegrated 25-mΩ and 13.9-mΩ MOSFETsInput voltage range: 4 V to 18 VOutput voltage range: 0.5 V to 7 VThree selectable PWM ramp options to optimize the control loop performanceFive selectable switching frequencies: 500 kHz, 750 kHz, 1 MHz, 1.5 MHz, and 2.2 MHzSynchronizable to an external clock0.5-V, ±0.5% voltage reference accuracy over full temperature rangeSelectable soft-start times: 0.5 ms, 1 ms, 2 ms, and 4 msMonotonic start-up into pre-biased outputsSelectable current limits to support 3-A and 2-A operationEnable with adjustable input undervoltage lockoutPower-good output monitorOutput overvoltage, output undervoltage, input undervoltage, overcurrent, and overtemperature protectionPin-to-pin compatible withTPS543820andTPS543620–40°C to 150°C operating junction temperature2.5-mm × 3-mm, 14-pin VQFN-HR package with 0.5-mm pitchFixed-frequency, internally-compensated advanced current mode (ACM) controlIntegrated 25-mΩ and 13.9-mΩ MOSFETsInput voltage range: 4 V to 18 VOutput voltage range: 0.5 V to 7 VThree selectable PWM ramp options to optimize the control loop performanceFive selectable switching frequencies: 500 kHz, 750 kHz, 1 MHz, 1.5 MHz, and 2.2 MHzSynchronizable to an external clock0.5-V, ±0.5% voltage reference accuracy over full temperature rangeSelectable soft-start times: 0.5 ms, 1 ms, 2 ms, and 4 msMonotonic start-up into pre-biased outputsSelectable current limits to support 3-A and 2-A operationEnable with adjustable input undervoltage lockoutPower-good output monitorOutput overvoltage, output undervoltage, input undervoltage, overcurrent, and overtemperature protectionPin-to-pin compatible withTPS543820andTPS543620–40°C to 150°C operating junction temperature2.5-mm × 3-mm, 14-pin VQFN-HR package with 0.5-mm pitch
Description
AI
The TPS543320 is a high-efficiency 18-V, 3-A synchronous buck converter employing an internally-compensated, fixed-frequency Advanced Current Mode control. The device is capable of providing high efficiency while running at a switching frequency up to 2.2 MHz. The device is in a small 2.5-mm × 3-mm HotRod™ VQFN package, which coupled with high efficiency at high frequency, makes it optimal for designs requiring a small solution size. The fixed frequency controller can operate from 500 kHz to 2.2 MHz and can be synchronized to an external clock using the SYNC pin. Additional features include a high accuracy voltage reference, selectable soft start times, montonic start-up into pre-biased outputs, selectable current limits, adjustable UVLO through the EN pin, and a full suite of fault protections.
The TPS543320 is a high-efficiency 18-V, 3-A synchronous buck converter employing an internally-compensated, fixed-frequency Advanced Current Mode control. The device is capable of providing high efficiency while running at a switching frequency up to 2.2 MHz. The device is in a small 2.5-mm × 3-mm HotRod™ VQFN package, which coupled with high efficiency at high frequency, makes it optimal for designs requiring a small solution size. The fixed frequency controller can operate from 500 kHz to 2.2 MHz and can be synchronized to an external clock using the SYNC pin. Additional features include a high accuracy voltage reference, selectable soft start times, montonic start-up into pre-biased outputs, selectable current limits, adjustable UVLO through the EN pin, and a full suite of fault protections.