component
MD8942
Public Made by Adomby adom
Shanghai Mingda Microelectronics DC-DC Converters, SOT-23-6L. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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md8942: specified limits as data (metadata.characteristics, 33 rows from the datasheet)
2 files changed
+443
README.md+40@@ -24,6 +24,46 @@ MD8942 from Shanghai Mingda Microelectronics, in a SOT-23-6L. Pinout and pin des | Category | PMIC | | Pins | 6 | +## Electrical characteristics++Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).++| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |+|---|---|---|---|---|---|---|---|+| Supply Voltage (VIN) | VIN | -0.3 | | 42 | V | | 2 |+| Switch Voltage (VSW), max printed as VIN(MAX)+0.3V | VSW | -0.3 | | | V | | 2 |+| BST to SW | | -0.3 | | 6 | V | | 2 |+| Enable (VEN) | VEN | | | 6 | V | | 2 |+| Enable Sink Current (VEN) | | | | 100 | μA | | 2 |+| All Other Pins | | -0.3 | | 6 | V | | 2 |+| Storage Temperature Range | | -65 | | 150 | ℃ | | 2 |+| Junction Temperature | | | | 150 | ℃ | | 2 |+| Operating Temperature Range | | -40 | | 85 | ℃ | | 2 |+| ESD Human Body Model (HBM) | | 2 | | | kV | HBM, minimum level | 2 |+| Input Voltage Range | VIN_R | 4 | | 36 | V | | 3 |+| VIN UVLO Up Threshold | VUVLO_U | 3.2 | 3.6 | 3.9 | V | | 3 |+| Feedback Voltage | VFB | 0.778 | 0.794 | 0.81 | V | 4.8V < VIN < 36V, Iout=10mA | 3 |+| Oscillator Frequency | fSW | 880 | 1100 | 1320 | kHz | | 3 |+| Input Standoff Voltage | VIN_S | | 42 | | V | VEN = 0V | 3 |+| VIN UVLO Hysteresis | VUVLO_HYS | | 0.3 | | V | | 3 |+| High-Side Switch on Resistance | RON_HS | | 650 | | mOhms | VBST-VSW=5V | 3 |+| Low-Side Switch on Resistance | RON_LS | | 650 | | mOhms | | 3 |+| High-Side Switch Leakage | ISW_HS_LKG | | 0.1 | | μA | VEN = 0V, VSW = 0V | 3 |+| Low-Side Switch Leakage | ISW_LS_LKG | | 0.2 | | μA | VEN = 0V, VSW = VIN | 3 |+| Peak Inductor Current Limit | IHS_Limit | | 1.2 | | A | | 3 |+| COMP to Current Sense Transconductance | GCS | | 2.7 | | A/V | | 3 |+| Soft-start time | TSS | | 0.5 | | msec | VFB from 0 to 0.8V | 3 |+| Foldback Frequency | fSW_F | | 80 | | kHz | | 3 |+| Minimum Switch on Time | τON | | 100 | | ns | | 3 |+| Shutdown Supply Current | ISHDN | | 3 | | μA | VEN = 0V | 3 |+| Average Quiescent Supply Current | IQ | | 130 | | μA | No load, VFB = 0.9V | 3 |+| Thermal Shutdown | TSD | | 155 | | ℃ | | 3 |+| Thermal Shutdown Hysteresis | TSD_HYS | | 20 | | ℃ | | 3 |+| Enable up Threshold | VEN_U | | 1 | | V | | 3 |+| Enable Threshold Hysteresis | VEN_HYS | | 0.16 | | V | | 3 |+| Enable Clamping Voltage | | | 5 | | V | | 3 |+| Enable Pull-Down Resistance | | | 430 | | kOhms | | 3 |+ ## CAD (KiCad official) - Symbol: `MD8942`
page.json+403@@ -147,6 +147,409 @@ "Package": "SOT-23-6L", "Category": "PMIC", "Pins": "6"+ },+ "characteristics": {+ "version": 1,+ "source": "datasheet",+ "datasheet_sha256": "758503482648cacf",+ "rows": [+ {+ "name": "Supply Voltage (VIN)",+ "symbol": "VIN",+ "kind": "absolute_maximum",+ "unit": "V",+ "min": -0.3,+ "typ": null,+ "max": 42,+ "conditions": "",+ "source_page": 2,+ "source": "datasheet"+ },+ {+ "name": "Switch Voltage (VSW), max printed as VIN(MAX)+0.3V",+ "symbol": "VSW",+ "kind": "absolute_maximum",+ "unit": "V",+ "min": -0.3,+ "typ": null,+ "max": null,+ "conditions": "",+ "source_page": 2,+ "source": "datasheet"+ },+ {+ "name": "BST to SW",+ "symbol": "",+ "kind": "absolute_maximum",+ "unit": "V",+ "min": -0.3,+ "typ": null,+ "max": 6,+ "conditions": "",+ "source_page": 2,+ "source": "datasheet"+ },+ {+ "name": "Enable (VEN)",+ "symbol": "VEN",+ "kind": "absolute_maximum",+ "unit": "V",+ "min": null,+ "typ": null,+ "max": 6,+ "conditions": "",+ "source_page": 2,+ "source": "datasheet"+ },+ {+ "name": "Enable Sink Current (VEN)",+ "symbol": "",+ "kind": "absolute_maximum",+ "unit": "μA",+ "min": null,+ "typ": null,+ "max": 100,+ "conditions": "",+ "source_page": 2,+ "source": "datasheet"+ },+ {+ "name": "All Other Pins",+ "symbol": "",+ "kind": "absolute_maximum",+ "unit": "V",+ "min": -0.3,+ "typ": null,+ "max": 6,+ "conditions": "",+ "source_page": 2,+ "source": "datasheet"+ },+ {+ "name": "Storage Temperature Range",+ "symbol": "",+ "kind": "absolute_maximum",+ "unit": "℃",+ "min": -65,+ "typ": null,+ "max": 150,+ "conditions": "",+ "source_page": 2,+ "source": "datasheet"+ },+ {+ "name": "Junction Temperature",+ "symbol": "",+ "kind": "absolute_maximum",+ "unit": "℃",+ "min": null,+ "typ": null,+ "max": 150,+ "conditions": "",+ "source_page": 2,+ "source": "datasheet"+ },+ {+ "name": "Operating Temperature Range",+ "symbol": "",+ "kind": "recommended_operating",+ "unit": "℃",+ "min": -40,+ "typ": null,+ "max": 85,+ "conditions": "",+ "source_page": 2,+ "source": "datasheet"+ },+ {+ "name": "ESD Human Body Model (HBM)",+ "symbol": "",+ "kind": "absolute_maximum",+ "unit": "kV",+ "min": 2,+ "typ": null,+ "max": null,+ "conditions": "HBM, minimum level",+ "source_page": 2,+ "source": "datasheet"+ },+ {+ "name": "Input Voltage Range",+ "symbol": "VIN_R",+ "kind": "electrical",+ "unit": "V",+ "min": 4,+ "typ": null,+ "max": 36,+ "conditions": "",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "VIN UVLO Up Threshold",+ "symbol": "VUVLO_U",+ "kind": "electrical",+ "unit": "V",+ "min": 3.2,+ "typ": 3.6,+ "max": 3.9,+ "conditions": "",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Feedback Voltage",+ "symbol": "VFB",+ "kind": "electrical",+ "unit": "V",+ "min": 0.778,+ "typ": 0.794,+ "max": 0.81,+ "conditions": "4.8V < VIN < 36V, Iout=10mA",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Oscillator Frequency",+ "symbol": "fSW",+ "kind": "electrical",+ "unit": "kHz",+ "min": 880,+ "typ": 1100,+ "max": 1320,+ "conditions": "",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Input Standoff Voltage",+ "symbol": "VIN_S",+ "kind": "electrical",+ "unit": "V",+ "min": null,+ "typ": 42,+ "max": null,+ "conditions": "VEN = 0V",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "VIN UVLO Hysteresis",+ "symbol": "VUVLO_HYS",+ "kind": "electrical",+ "unit": "V",+ "min": null,+ "typ": 0.3,+ "max": null,+ "conditions": "",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "High-Side Switch on Resistance",+ "symbol": "RON_HS",+ "kind": "electrical",+ "unit": "mOhms",+ "min": null,+ "typ": 650,+ "max": null,+ "conditions": "VBST-VSW=5V",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Low-Side Switch on Resistance",+ "symbol": "RON_LS",+ "kind": "electrical",+ "unit": "mOhms",+ "min": null,+ "typ": 650,+ "max": null,+ "conditions": "",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "High-Side Switch Leakage",+ "symbol": "ISW_HS_LKG",+ "kind": "electrical",+ "unit": "μA",+ "min": null,+ "typ": 0.1,+ "max": null,+ "conditions": "VEN = 0V, VSW = 0V",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Low-Side Switch Leakage",+ "symbol": "ISW_LS_LKG",+ "kind": "electrical",+ "unit": "μA",+ "min": null,+ "typ": 0.2,+ "max": null,+ "conditions": "VEN = 0V, VSW = VIN",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Peak Inductor Current Limit",+ "symbol": "IHS_Limit",+ "kind": "electrical",+ "unit": "A",+ "min": null,+ "typ": 1.2,+ "max": null,+ "conditions": "",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "COMP to Current Sense Transconductance",+ "symbol": "GCS",+ "kind": "electrical",+ "unit": "A/V",+ "min": null,+ "typ": 2.7,+ "max": null,+ "conditions": "",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Soft-start time",+ "symbol": "TSS",+ "kind": "timing",+ "unit": "msec",+ "min": null,+ "typ": 0.5,+ "max": null,+ "conditions": "VFB from 0 to 0.8V",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Foldback Frequency",+ "symbol": "fSW_F",+ "kind": "electrical",+ "unit": "kHz",+ "min": null,+ "typ": 80,+ "max": null,+ "conditions": "",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Minimum Switch on Time",+ "symbol": "τON",+ "kind": "electrical",+ "unit": "ns",+ "min": null,+ "typ": 100,+ "max": null,+ "conditions": "",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Shutdown Supply Current",+ "symbol": "ISHDN",+ "kind": "electrical",+ "unit": "μA",+ "min": null,+ "typ": 3,+ "max": null,+ "conditions": "VEN = 0V",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Average Quiescent Supply Current",+ "symbol": "IQ",+ "kind": "electrical",+ "unit": "μA",+ "min": null,+ "typ": 130,+ "max": null,+ "conditions": "No load, VFB = 0.9V",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Thermal Shutdown",+ "symbol": "TSD",+ "kind": "electrical",+ "unit": "℃",+ "min": null,+ "typ": 155,+ "max": null,+ "conditions": "",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Thermal Shutdown Hysteresis",+ "symbol": "TSD_HYS",+ "kind": "electrical",+ "unit": "℃",+ "min": null,+ "typ": 20,+ "max": null,+ "conditions": "",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Enable up Threshold",+ "symbol": "VEN_U",+ "kind": "electrical",+ "unit": "V",+ "min": null,+ "typ": 1,+ "max": null,+ "conditions": "",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Enable Threshold Hysteresis",+ "symbol": "VEN_HYS",+ "kind": "electrical",+ "unit": "V",+ "min": null,+ "typ": 0.16,+ "max": null,+ "conditions": "",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Enable Clamping Voltage",+ "symbol": "",+ "kind": "electrical",+ "unit": "V",+ "min": null,+ "typ": 5,+ "max": null,+ "conditions": "",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Enable Pull-Down Resistance",+ "symbol": "",+ "kind": "electrical",+ "unit": "kOhms",+ "min": null,+ "typ": 430,+ "max": null,+ "conditions": "",+ "source_page": 3,+ "source": "datasheet"+ }+ ] } }, "sections": [