TPS628303 Series
2.25-V to 5.5-V, 3-A step-down converter with 1% accuracy in small QFN and SOT583 packages
Manufacturer: Texas Instruments
Catalog(3 parts)
| Part | Voltage - Input (Min)▲▼ | Number of Outputs▲▼ | Voltage - Input (Max)▲▼ | Package / Case | Function | Output Type | Mounting Type | Topology | Output Configuration | Operating Temperature▲▼ | Operating Temperature▲▼ | Voltage - Output (Max)▲▼ | Frequency - Switching▲▼ | Voltage - Output (Min/Fixed)▲▼ | Synchronous Rectifier▲▼ | Supplier Device Package | Current - Output▲▼ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments TPS628303KRZERBuck Switching Regulator IC Positive Adjustable 0.5V 1 Output 3A 8-WFDFN | 2.25 V | 1 ul | 5.5 V | 8-WFDFN | Step-Down | Adjustable | Surface Mount | Buck | Positive | 125 °C | -40 °C | 4.5 V | 2000000 Hz | 0.5 V | 8-WQFN-HR (1x2) | 3 A | |
Texas Instruments TPS628303ADRLRBuck Switching Regulator IC Positive Adjustable 0.5V 1 Output 3A SOT-583 | 2.25 V | 1 ul | 5.5 V | SOT-583 | Step-Down | Adjustable | Surface Mount | Buck | Positive | 125 °C | -40 °C | 4.5 V | 2000000 Hz | 0.5 V | SOT-583 | 3 A | |
Texas Instruments TPS628303ARZERBuck Switching Regulator IC Positive Adjustable 0.5V 1 Output 3A 8-WFDFN | 2.25 V | 1 ul | 5.5 V | 8-WFDFN | Step-Down | Adjustable | Surface Mount | Buck | Positive | 125 °C | -40 °C | 4.5 V | 2000000 Hz | 0.5 V | 8-WQFN-HR (1x2) | 3 A |
Key Features
• 2.25V to 5.5V input voltage range0.5V to 4.5V adjustable output voltage1% FB voltage accuracy (–40°C to 125°C TJ)Optimized EMI performanceFacilitates CISPR 11/32 complianceIntegrated on-chip noise-filtering capacitorsMeasurements according to CISPR availableExcellent transient response7µA operating quiescent current2.0MHz switching frequency35mΩ and 18mΩ internal power MOSFETsDCS-Control topologyMODE pin for conduction mode selectionSupports 1.2V GPIO100% duty cycle for lowest dropoutActive output dischargePower-good outputThermal shutdown protectionHiccup or latch-off OCP/OVPSIMPLIS model availableCreate a custom design using the TPS62830x withWEBENCH® Power Designer2.25V to 5.5V input voltage range0.5V to 4.5V adjustable output voltage1% FB voltage accuracy (–40°C to 125°C TJ)Optimized EMI performanceFacilitates CISPR 11/32 complianceIntegrated on-chip noise-filtering capacitorsMeasurements according to CISPR availableExcellent transient response7µA operating quiescent current2.0MHz switching frequency35mΩ and 18mΩ internal power MOSFETsDCS-Control topologyMODE pin for conduction mode selectionSupports 1.2V GPIO100% duty cycle for lowest dropoutActive output dischargePower-good outputThermal shutdown protectionHiccup or latch-off OCP/OVPSIMPLIS model availableCreate a custom design using the TPS62830x withWEBENCH® Power Designer
Description
AI
The TPS62830x is an easy-to-use, synchronous, step-down, DC/DC converters family with low quiescent current. Based on the DCS-Control topology, TPS62830x provides a fast transient response with small output capacitance. The internal reference allows to regulate the output voltage down to 0.5V with a high feedback voltage accuracy of 1% over the junction temperature range of –40°C to 125°C. The family is available in two packages and each package devices are pin-to-pin compatible.
The TPS62830x has a MODE pin to control the device mode of operation. Power save mode maintains high efficiency down to very light loads for extending the system battery run-time. Forced-PWM mode maintains a continuous conduction mode to make sure the least ripple in the output voltage and a quasi-fixed switching frequency. The device features a Power-Good signal and a well-controlled internal soft-start circuit. TPS62830x is able to operate in 100% mode. For fault protection, TPS62830x incorporates a HICCUP short-circuit protection as well as a thermal shutdown. One device option has a latch-off protection for short circuit as well as overvoltage incidents. The family is available in two packages: an 8-pin 1.0mm × 2.0mm QFN package, offering the highest power density design, and an 8-pin 1.6mm × 2.1mm SOT583 package, offering an easy-to-assemble designs.
The TPS62830x is an easy-to-use, synchronous, step-down, DC/DC converters family with low quiescent current. Based on the DCS-Control topology, TPS62830x provides a fast transient response with small output capacitance. The internal reference allows to regulate the output voltage down to 0.5V with a high feedback voltage accuracy of 1% over the junction temperature range of –40°C to 125°C. The family is available in two packages and each package devices are pin-to-pin compatible.
The TPS62830x has a MODE pin to control the device mode of operation. Power save mode maintains high efficiency down to very light loads for extending the system battery run-time. Forced-PWM mode maintains a continuous conduction mode to make sure the least ripple in the output voltage and a quasi-fixed switching frequency. The device features a Power-Good signal and a well-controlled internal soft-start circuit. TPS62830x is able to operate in 100% mode. For fault protection, TPS62830x incorporates a HICCUP short-circuit protection as well as a thermal shutdown. One device option has a latch-off protection for short circuit as well as overvoltage incidents. The family is available in two packages: an 8-pin 1.0mm × 2.0mm QFN package, offering the highest power density design, and an 8-pin 1.6mm × 2.1mm SOT583 package, offering an easy-to-assemble designs.