component
TPS54310PWPR
Public Made by Adomby adom
Texas Instruments DC-DC Converters, TSSOP-20-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"name": "AGND",
"type": "power_in",
"description": "Analog ground return for the compensation network, output divider, slow-start capacitor, VBIAS capacitor, RT resistor and SYNC pin, and the PowerPAD must be connected to AGND."
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"number": "2",
"name": "VSENSE",
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"description": "Error amplifier inverting input."
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"number": "3",
"name": "COMP",
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"description": "Error amplifier output, with the compensation network connected from COMP to VSENSE."
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{
"number": "4",
"name": "PWRGD",
"type": "output",
"description": "Open-drain power good output that is high when VSENSE is at or above 90% of Vref and low otherwise, and is low when SS/ENA is low or internal shutdown is active."
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{
"number": "5",
"name": "BOOT",
"type": "input",
"description": "Bootstrap input, where a 0.022-µF to 0.1-µF low-ESR capacitor from BOOT to PH generates the floating high-side FET driver supply."
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{
"number": "6",
"name": "PH",
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"number": "7",
"name": "PH",
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"number": "11",
"name": "PGND",
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"description": "Power ground that is the high-current return for the low-side driver and power MOSFET, and should connect to large copper areas at the supply returns."
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"type": "power_in",
"description": "Power ground that is the high-current return for the low-side driver and power MOSFET, and should connect to large copper areas at the supply returns."
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{
"number": "13",
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"type": "power_in",
"description": "Power ground that is the high-current return for the low-side driver and power MOSFET, and should connect to large copper areas at the supply returns."
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"number": "14",
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"type": "power_in",
"description": "Input supply for the power MOSFET switches and internal bias regulator, which should be bypassed to PGND with a 1-µF to 10-µF low-ESR ceramic capacitor close to the package."
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{
"number": "15",
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"type": "power_in",
"description": "Input supply for the power MOSFET switches and internal bias regulator, which should be bypassed to PGND with a 1-µF to 10-µF low-ESR ceramic capacitor close to the package."
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"number": "16",
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"description": "Input supply for the power MOSFET switches and internal bias regulator, which should be bypassed to PGND with a 1-µF to 10-µF low-ESR ceramic capacitor close to the package."
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"number": "17",
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"type": "power_out",
"description": "Internal bias regulator output that supplies regulated voltage to internal circuitry and should be bypassed to AGND with a 0.1-µF to 1.0-µF low-ESR ceramic capacitor."
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"number": "18",
"name": "SS/ENA",
"type": "bidirectional",
"description": "Slow-start/enable input/output that provides a logic input to enable or disable device operation and a capacitor input to externally set the start-up time."
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"name": "SYNC",
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"description": "Synchronization input that synchronizes to an external oscillator or selects between two internally set switching frequencies, and requires a resistor on the RT pin when synchronized externally."
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"number": "20",
"name": "RT",
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"description": "Frequency setting resistor input, where a resistor from RT to AGND sets the switching frequency fs."
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"name": "Voltage differential AGND to PGND",
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"name": "Operating virtual junction temperature",
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{
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{
"name": "Junction-to-ambient thermal resistance (with solder)",
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"name": "Junction-to-ambient thermal resistance (without solder on PowerPad)",
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"name": "Quiescent current fs=550 kHz",
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"name": "Load regulation",
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