component
TPS54873PWPR
Public Made by Adomby adom
Texas Instruments DC-DC Converters, HTSSOP-28-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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tps54873pwpr: specified limits as data (metadata.characteristics, 50 rows from the datasheet)
2 files changed
+665−1
README.md+57@@ -47,6 +47,63 @@ TPS54873PWPR from Texas Instruments, in a HTSSOP-28-EP. Pinout and pin descripti | Category | Power Supply Chip | | Pins | 29 | +## Electrical characteristics++Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).++| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |+|---|---|---|---|---|---|---|---|+| Input voltage range, VIN | VIN | 4 | | 6 | V | | 3 |+| Quiescent current, fs = 350 kHz | I(Q) | 11 | | 15.8 | mA | fs = 350 kHz, SYNC ≤ 0.8 V, RT open, PH pin open | 3 |+| Quiescent current, fs = 550 kHz | I(Q) | 16 | | 23.5 | mA | fs = 550 kHz, SYNC ≥ 2.5 V, RT open, PH pin open | 3 |+| Quiescent current, shutdown | I(Q) | 1 | | 1.4 | mA | Shutdown, SS/ENA = 0 V | 3 |+| Start threshold voltage, UVLO | | 3.8 | | 3.85 | V | | 3 |+| Stop threshold voltage, UVLO | | 3.4 | | 3.5 | V | | 3 |+| Hysteresis voltage, UVLO | | 0.14 | | 0.16 | V | | 3 |+| Output voltage, VBIAS | VBIAS | 2.7 | 2.8 | 2.9 | V | I(VBIAS) = 0 | 3 |+| Vref accuracy | Vref | 0.882 | 0.891 | 0.9 | V | | 3 |+| Internally set free running frequency, SYNC low | | 280 | 350 | 420 | kHz | SYNC ≤ 0.8 V, RT open | 3 |+| Internally set free running frequency, SYNC high | | 440 | 550 | 660 | kHz | SYNC ≥ 2.5 V, RT open | 3 |+| Externally set free running frequency, RT = 180 kΩ | | 252 | 280 | 308 | kHz | RT = 180 kΩ (1% resistor to AGND) | 3 |+| Externally set free running frequency, RT = 100 kΩ | | 460 | 500 | 540 | kHz | RT = 100 kΩ (1% resistor to AGND) | 3 |+| Externally set free running frequency, RT = 68 kΩ | | 663 | 700 | 762 | kHz | RT = 68 kΩ (1% resistor to AGND) | 3 |+| Frequency range, SYNC | | 330 | | 700 | kHz | | 3 |+| Maximum duty cycle | | | | 90 | % | | 3 |+| Error amplifier open loop voltage gain | | 90 | | 110 | dB | 1 kΩ COMP to AGND | 4 |+| Error amplifier unity gain bandwidth | | 3 | | 5 | MHz | Parallel 10 kΩ, 160 pF COMP to AGND | 4 |+| Error amplifier common mode input voltage range | | 0 | | | V | Powered by internal LDO; upper limit printed as VBIAS (not numeric) | 4 |+| Input bias current, VSENSE | | 60 | | 250 | nA | VSENSE = Vref | 4 |+| Output voltage slew rate (symmetric), COMP | | 1 | | 1.4 | V/µs | | 4 |+| PWM comparator propagation delay time | | 70 | | 85 | ns | 10-mV overdrive, excluding deadtime | 4 |+| Enable threshold voltage, SS/ENA | | 0.82 | 1.2 | 1.4 | V | | 4 |+| Internal slow-start time | | 2.6 | 3.35 | 4.1 | ms | | 4 |+| Charge current, SS/ENA | | 3 | 5 | 8 | µA | SS/ENA = 0 V | 4 |+| Discharge current, SS/ENA | | 2 | 2.3 | 4 | mA | SS/ENA = 1.3 V, VI = 1.5 V | 4 |+| Output saturation voltage, PWRGD | | 0.18 | | 0.3 | V | I(sink) = 2.5 mA | 4 |+| Current limit trip point, VI = 4.5 V | | 9 | | 10 | A | VI = 4.5 V, output shorted | 4 |+| Current limit trip point, VI = 6 V | | 11 | | 12 | A | VI = 6 V, output shorted | 4 |+| Thermal shutdown trip point | | 135 | 150 | 165 | °C | | 4 |+| Power MOSFET switches rDS(on), VI = 6 V | rDS(on) | 26 | | 47 | mΩ | VI = 6 V | 4 |+| Power MOSFET switches rDS(on), VI = 4.5 V | rDS(on) | 30 | | 60 | mΩ | VI = 4.5 V | 4 |+| Input voltage range, VI (VIN, SS/ENA, SYNC) | VI | -0.3 | | 7 | V | | 2 |+| Input voltage range, VI (RT) | VI | -0.3 | | 6 | V | | 2 |+| Input voltage range, VI (VSENSE) | VI | -0.3 | | 4 | V | | 2 |+| Voltage range, BOOT | | -0.3 | | 17 | V | | 2 |+| Output voltage range, VO (VBIAS, COMP, PWRGD) | VO | -0.3 | | 7 | V | | 2 |+| Output voltage range, VO (PH) | VO | -0.6 | | 10 | V | | 2 |+| Source current, IO (COMP, VBIAS) | IO | | | 6 | mA | | 2 |+| Sink current, IS (PH) | IS | | | 12 | A | | 2 |+| Sink current, IS (COMP) | IS | | | 6 | mA | | 2 |+| Sink current, IS (SS/ENA, PWRGD) | IS | | | 10 | mA | | 2 |+| Voltage differential, AGND to PGND | | -0.3 | | 0.3 | V | | 2 |+| Operating virtual junction temperature range, TJ | TJ | -40 | | 125 | °C | | 2 |+| Storage temperature, Tstg | Tstg | -65 | | 150 | °C | | 2 |+| Lead temperature | | | | 300 | °C | 1.6 mm (1/16 inch) from case for 10 seconds | 2 |+| Input voltage, VI (recommended) | VI | 4 | | 6 | V | | 2 |+| Operating junction temperature, TJ (recommended) | TJ | -40 | | 125 | °C | | 2 |+| Junction-to-ambient thermal impedance, with solder | | | 18.2 | | °C/W | 28-pin PWP with solder | 2 |+| Junction-to-ambient thermal impedance, without solder | | | 40.5 | | °C/W | 28-pin PWP without solder | 2 |+ ## CAD (KiCad official) - Symbol: `TPS54873PWPR`
page.json+608−1@@ -307,6 +307,613 @@ "Package": "HTSSOP-28-EP", "Category": "Power Supply Chip", "Pins": "29"+ },+ "characteristics": {+ "version": 1,+ "source": "datasheet",+ "datasheet_sha256": "dceb0d0fdbc3611f",+ "rows": [+ {+ "name": "Input voltage range, VIN",+ "symbol": "VIN",+ "kind": "electrical",+ "unit": "V",+ "min": 4,+ "typ": null,+ "max": 6,+ "conditions": "",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Quiescent current, fs = 350 kHz",+ "symbol": "I(Q)",+ "kind": "electrical",+ "unit": "mA",+ "min": 11,+ "typ": null,+ "max": 15.8,+ "conditions": "fs = 350 kHz, SYNC ≤ 0.8 V, RT open, PH pin open",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Quiescent current, fs = 550 kHz",+ "symbol": "I(Q)",+ "kind": "electrical",+ "unit": "mA",+ "min": 16,+ "typ": null,+ "max": 23.5,+ "conditions": "fs = 550 kHz, SYNC ≥ 2.5 V, RT open, PH pin open",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Quiescent current, shutdown",+ "symbol": "I(Q)",+ "kind": "electrical",+ "unit": "mA",+ "min": 1,+ "typ": null,+ "max": 1.4,+ "conditions": "Shutdown, SS/ENA = 0 V",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Start threshold voltage, UVLO",+ "symbol": "",+ "kind": "electrical",+ "unit": "V",+ "min": 3.8,+ "typ": null,+ "max": 3.85,+ "conditions": "",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Stop threshold voltage, UVLO",+ "symbol": "",+ "kind": "electrical",+ "unit": "V",+ "min": 3.4,+ "typ": null,+ "max": 3.5,+ "conditions": "",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Hysteresis voltage, UVLO",+ "symbol": "",+ "kind": "electrical",+ "unit": "V",+ "min": 0.14,+ "typ": null,+ "max": 0.16,+ "conditions": "",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Output voltage, VBIAS",+ "symbol": "VBIAS",+ "kind": "electrical",+ "unit": "V",+ "min": 2.7,+ "typ": 2.8,+ "max": 2.9,+ "conditions": "I(VBIAS) = 0",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Vref accuracy",+ "symbol": "Vref",+ "kind": "electrical",+ "unit": "V",+ "min": 0.882,+ "typ": 0.891,+ "max": 0.9,+ "conditions": "",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Internally set free running frequency, SYNC low",+ "symbol": "",+ "kind": "electrical",+ "unit": "kHz",+ "min": 280,+ "typ": 350,+ "max": 420,+ "conditions": "SYNC ≤ 0.8 V, RT open",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Internally set free running frequency, SYNC high",+ "symbol": "",+ "kind": "electrical",+ "unit": "kHz",+ "min": 440,+ "typ": 550,+ "max": 660,+ "conditions": "SYNC ≥ 2.5 V, RT open",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Externally set free running frequency, RT = 180 kΩ",+ "symbol": "",+ "kind": "electrical",+ "unit": "kHz",+ "min": 252,+ "typ": 280,+ "max": 308,+ "conditions": "RT = 180 kΩ (1% resistor to AGND)",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Externally set free running frequency, RT = 100 kΩ",+ "symbol": "",+ "kind": "electrical",+ "unit": "kHz",+ "min": 460,+ "typ": 500,+ "max": 540,+ "conditions": "RT = 100 kΩ (1% resistor to AGND)",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Externally set free running frequency, RT = 68 kΩ",+ "symbol": "",+ "kind": "electrical",+ "unit": "kHz",+ "min": 663,+ "typ": 700,+ "max": 762,+ "conditions": "RT = 68 kΩ (1% resistor to AGND)",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Frequency range, SYNC",+ "symbol": "",+ "kind": "electrical",+ "unit": "kHz",+ "min": 330,+ "typ": null,+ "max": 700,+ "conditions": "",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Maximum duty cycle",+ "symbol": "",+ "kind": "electrical",+ "unit": "%",+ "min": null,+ "typ": null,+ "max": 90,+ "conditions": "",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Error amplifier open loop voltage gain",+ "symbol": "",+ "kind": "electrical",+ "unit": "dB",+ "min": 90,+ "typ": null,+ "max": 110,+ "conditions": "1 kΩ COMP to AGND",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "Error amplifier unity gain bandwidth",+ "symbol": "",+ "kind": "electrical",+ "unit": "MHz",+ "min": 3,+ "typ": null,+ "max": 5,+ "conditions": "Parallel 10 kΩ, 160 pF COMP to AGND",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "Error amplifier common mode input voltage range",+ "symbol": "",+ "kind": "electrical",+ "unit": "V",+ "min": 0,+ "typ": null,+ "max": null,+ "conditions": "Powered by internal LDO; upper limit printed as VBIAS (not numeric)",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "Input bias current, VSENSE",+ "symbol": "",+ "kind": "electrical",+ "unit": "nA",+ "min": 60,+ "typ": null,+ "max": 250,+ "conditions": "VSENSE = Vref",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "Output voltage slew rate (symmetric), COMP",+ "symbol": "",+ "kind": "electrical",+ "unit": "V/µs",+ "min": 1,+ "typ": null,+ "max": 1.4,+ "conditions": "",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "PWM comparator propagation delay time",+ "symbol": "",+ "kind": "electrical",+ "unit": "ns",+ "min": 70,+ "typ": null,+ "max": 85,+ "conditions": "10-mV overdrive, excluding deadtime",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "Enable threshold voltage, SS/ENA",+ "symbol": "",+ "kind": "electrical",+ "unit": "V",+ "min": 0.82,+ "typ": 1.2,+ "max": 1.4,+ "conditions": "",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "Internal slow-start time",+ "symbol": "",+ "kind": "electrical",+ "unit": "ms",+ "min": 2.6,+ "typ": 3.35,+ "max": 4.1,+ "conditions": "",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "Charge current, SS/ENA",+ "symbol": "",+ "kind": "electrical",+ "unit": "µA",+ "min": 3,+ "typ": 5,+ "max": 8,+ "conditions": "SS/ENA = 0 V",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "Discharge current, SS/ENA",+ "symbol": "",+ "kind": "electrical",+ "unit": "mA",+ "min": 2,+ "typ": 2.3,+ "max": 4,+ "conditions": "SS/ENA = 1.3 V, VI = 1.5 V",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "Output saturation voltage, PWRGD",+ "symbol": "",+ "kind": "electrical",+ "unit": "V",+ "min": 0.18,+ "typ": null,+ "max": 0.3,+ "conditions": "I(sink) = 2.5 mA",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "Current limit trip point, VI = 4.5 V",+ "symbol": "",+ "kind": "electrical",+ "unit": "A",+ "min": 9,+ "typ": null,+ "max": 10,+ "conditions": "VI = 4.5 V, output shorted",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "Current limit trip point, VI = 6 V",+ "symbol": "",+ "kind": "electrical",+ "unit": "A",+ "min": 11,+ "typ": null,+ "max": 12,+ "conditions": "VI = 6 V, output shorted",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "Thermal shutdown trip point",+ "symbol": "",+ "kind": "electrical",+ "unit": "°C",+ "min": 135,+ "typ": 150,+ "max": 165,+ "conditions": "",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "Power MOSFET switches rDS(on), VI = 6 V",+ "symbol": "rDS(on)",+ "kind": "electrical",+ "unit": "mΩ",+ "min": 26,+ "typ": null,+ "max": 47,+ "conditions": "VI = 6 V",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "Power MOSFET switches rDS(on), VI = 4.5 V",+ "symbol": "rDS(on)",+ "kind": "electrical",+ "unit": "mΩ",+ "min": 30,+ "typ": null,+ "max": 60,+ "conditions": "VI = 4.5 V",+ "source_page": 4,+ "source": "datasheet"+ },+ {+ "name": "Input voltage range, VI (VIN, SS/ENA, SYNC)",+ "symbol": "VI",+ "kind": "absolute_maximum",+ "unit": "V",+ "min": -0.3,+ "typ": null,+ "max": 7,+ "conditions": "",+ "source_page": 2,+ "source": "datasheet"+ },+ {+ "name": "Input voltage range, VI (RT)",+ "symbol": "VI",+ "kind": "absolute_maximum",+ "unit": "V",+ "min": -0.3,+ "typ": null,+ "max": 6,+ "conditions": "",+ "source_page": 2,+ "source": "datasheet"+ },+ {+ "name": "Input voltage range, VI (VSENSE)",+ "symbol": "VI",+ "kind": "absolute_maximum",+ "unit": "V",+ "min": -0.3,+ "typ": null,+ "max": 4,+ "conditions": "",+ "source_page": 2,+ "source": "datasheet"+ },+ {+ "name": "Voltage range, BOOT",+ "symbol": "",+ "kind": "absolute_maximum",+ "unit": "V",+ "min": -0.3,+ "typ": null,+ "max": 17,+ "conditions": "",+ "source_page": 2,+ "source": "datasheet"+ },+ {+ "name": "Output voltage range, VO (VBIAS, COMP, PWRGD)",+ "symbol": "VO",+ "kind": "absolute_maximum",+ "unit": "V",+ "min": -0.3,+ "typ": null,+ "max": 7,+ "conditions": "",+ "source_page": 2,+ "source": "datasheet"+ },+ {+ "name": "Output voltage range, VO (PH)",+ "symbol": "VO",+ "kind": "absolute_maximum",+ "unit": "V",+ "min": -0.6,+ "typ": null,+ "max": 10,+ "conditions": "",+ "source_page": 2,+ "source": "datasheet"+ },+ {+ "name": "Source current, IO (COMP, VBIAS)",+ "symbol": "IO",+ "kind": "absolute_maximum",+ "unit": "mA",+ "min": null,+ "typ": null,+ "max": 6,+ "conditions": "",+ "source_page": 2,+ "source": "datasheet"+ },+ {+ "name": "Sink current, IS (PH)",+ "symbol": "IS",+ "kind": "absolute_maximum",+ "unit": "A",+ "min": null,+ "typ": null,+ "max": 12,+ "conditions": "",+ "source_page": 2,+ "source": "datasheet"+ },+ {+ "name": "Sink current, IS (COMP)",+ "symbol": "IS",+ "kind": "absolute_maximum",+ "unit": "mA",+ "min": null,+ "typ": null,+ "max": 6,+ "conditions": "",+ "source_page": 2,+ "source": "datasheet"+ },+ {+ "name": "Sink current, IS (SS/ENA, PWRGD)",+ "symbol": "IS",+ "kind": "absolute_maximum",+ "unit": "mA",+ "min": null,+ "typ": null,+ "max": 10,+ "conditions": "",+ "source_page": 2,+ "source": "datasheet"+ },+ {+ "name": "Voltage differential, AGND to PGND",+ "symbol": "",+ "kind": "absolute_maximum",+ "unit": "V",+ "min": -0.3,+ "typ": null,+ "max": 0.3,+ "conditions": "",+ "source_page": 2,+ "source": "datasheet"+ },+ {+ "name": "Operating virtual junction temperature range, TJ",+ "symbol": "TJ",+ "kind": "absolute_maximum",+ "unit": "°C",+ "min": -40,+ "typ": null,+ "max": 125,+ "conditions": "",+ "source_page": 2,+ "source": "datasheet"+ },+ {+ "name": "Storage temperature, Tstg",+ "symbol": "Tstg",+ "kind": "absolute_maximum",+ "unit": "°C",+ "min": -65,+ "typ": null,+ "max": 150,+ "conditions": "",+ "source_page": 2,+ "source": "datasheet"+ },+ {+ "name": "Lead temperature",+ "symbol": "",+ "kind": "absolute_maximum",+ "unit": "°C",+ "min": null,+ "typ": null,+ "max": 300,+ "conditions": "1.6 mm (1/16 inch) from case for 10 seconds",+ "source_page": 2,+ "source": "datasheet"+ },+ {+ "name": "Input voltage, VI (recommended)",+ "symbol": "VI",+ "kind": "recommended_operating",+ "unit": "V",+ "min": 4,+ "typ": null,+ "max": 6,+ "conditions": "",+ "source_page": 2,+ "source": "datasheet"+ },+ {+ "name": "Operating junction temperature, TJ (recommended)",+ "symbol": "TJ",+ "kind": "recommended_operating",+ "unit": "°C",+ "min": -40,+ "typ": null,+ "max": 125,+ "conditions": "",+ "source_page": 2,+ "source": "datasheet"+ },+ {+ "name": "Junction-to-ambient thermal impedance, with solder",+ "symbol": "",+ "kind": "thermal",+ "unit": "°C/W",+ "min": null,+ "typ": 18.2,+ "max": null,+ "conditions": "28-pin PWP with solder",+ "source_page": 2,+ "source": "datasheet"+ },+ {+ "name": "Junction-to-ambient thermal impedance, without solder",+ "symbol": "",+ "kind": "thermal",+ "unit": "°C/W",+ "min": null,+ "typ": 40.5,+ "max": null,+ "conditions": "28-pin PWP without solder",+ "source_page": 2,+ "source": "datasheet"+ }+ ] } }, "variants": [],@@ -348,4 +955,4 @@ "visibility": { "public": true }-}+}