TPS54120 Series
Low-Noise 1A Power Supply with Integrated DC-DC Converter and Low-Dropout Regulator
Manufacturer: Texas Instruments
Catalog(2 parts)
| Part | Current - Output▲▼ | Frequency - Switching▲▼ | Voltage - Input▲▼ | Voltage - Input▲▼ | Board Type | Voltage - Output▲▼ | Voltage - Output▲▼ | Outputs and Type▲▼ | Outputs and Type | Utilized IC / Part | Main Purpose | Supplied Contents | Topology | Mounting Type | Voltage - Supply▲▼ | Voltage - Supply▲▼ | Package / Case | w/Sequencer▲▼ | Voltage/Current - Output 2▲▼ | Voltage/Current - Output 2▲▼ | Voltage/Current - Output 2▲▼ | w/Supervisor▲▼ | Voltage/Current - Output 1▲▼ | Voltage/Current - Output 1▲▼ | Voltage/Current - Output 1▲▼ | Frequency - Switching▲▼ | Frequency - Switching▲▼ | Operating Temperature▲▼ | Operating Temperature▲▼ | w/LED Driver▲▼ | Supplier Device Package | Number of Outputs▲▼ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments TPS54120EVM-103TPS54120 - DC/DC, Step Down with LDO 2, Non-Isolated Outputs Evaluation Board | 1 A | 480000 Hz | 17 V | 7 V | Fully Populated | 4.099999904632568 V | 3.299999952316284 V | 2 ul | Non-Isolated | TPS54120 | DC/DC, Step Down with LDO | Board(s) | ||||||||||||||||||||
Texas Instruments TPS54120RGYTPMIC - Voltage Regulators - Linear Switching 2 Output Step-Down (Buck) (1), Linear (LDO) (1) 200kHz ~ 1.2MHz 24-VQFN (5.5x3.5) | Linear (LDO) (1), Step-Down (Buck) (1) | Surface Mount | 17 V | 2.200000047683716 V | 24-VFQFN Exposed Pad | 1 A | 6 V | 0.800000011920929 V | 6 V | 1 A | 0.800000011920929 V | 200000 Hz | 1200000 Hz | 125 °C | -40 °C | 24-VQFN (5.5x3.5) | 2 ul |
Key Features
• Low-Noise Output: 17 µVRMSat 100 Hz to1 MHzWide Input Voltage Range: 4.5 V to 17 VHigh Efficiency: 72% at 1 A, 12V InputExcellent Load/Line Transient ResponseSynchronizable to External Clock: 200 kHz to 1.2 MHzSmall Package: 3.5 mm × 5.5 mm QFN-24Low-Noise Output: 17 µVRMSat 100 Hz to1 MHzWide Input Voltage Range: 4.5 V to 17 VHigh Efficiency: 72% at 1 A, 12V InputExcellent Load/Line Transient ResponseSynchronizable to External Clock: 200 kHz to 1.2 MHzSmall Package: 3.5 mm × 5.5 mm QFN-24
Description
AI
The TPS54120 combines the high-efficiency of a step-down switching (dc-dc) converter with a high power-supply rejection (PSR), low-noise, low-dropout regulator (LDO) to provide an ultra low-noise power supply that delivers quiet power rails to noise-sensitive applications.
With a wide input range of 4.5 V to 17 V, the TPS54120 is ideally suited for systems with 12-V power busses, and supports a 1-A continuous output current. The output voltage can be set from 0.8 V to 6.0 V using external resistors. The dc-dc converter and LDO are completely configurable, allowing the TPS54120 to be used in a wide range of low-noise applications. In addition, the TPS54120 includes features such as softstart, switching frequency synchronization, and a power-good signal.
The device is available in a space-saving, 3.5-mm × 5.5-mm QFN package, and is specified to operate over a –40°C to +125°C junction temperature range.
The TPS54120 combines the high-efficiency of a step-down switching (dc-dc) converter with a high power-supply rejection (PSR), low-noise, low-dropout regulator (LDO) to provide an ultra low-noise power supply that delivers quiet power rails to noise-sensitive applications.
With a wide input range of 4.5 V to 17 V, the TPS54120 is ideally suited for systems with 12-V power busses, and supports a 1-A continuous output current. The output voltage can be set from 0.8 V to 6.0 V using external resistors. The dc-dc converter and LDO are completely configurable, allowing the TPS54120 to be used in a wide range of low-noise applications. In addition, the TPS54120 includes features such as softstart, switching frequency synchronization, and a power-good signal.
The device is available in a space-saving, 3.5-mm × 5.5-mm QFN package, and is specified to operate over a –40°C to +125°C junction temperature range.