component
PL83251
Public Made by Adomby adom
POWLICON DC-DC Converters, ESOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownPL83251
POWLICON · DC-DC Converters · ESOP-8
PL83251 from POWLICON, in a ESOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | BST | passive | Boot-strap pin: connect a 0.1µF or greater capacitor between SW and BST to power the high-side gate driver. |
| 2 | VIN | power_in | Power input supplying the IC from a 6.5V to 36V source, bypassed to GND with a large capacitor plus at least 0.1µF ceramic placed close to the VIN and GND pins. |
| 3 | SW | output | Power switching pin, connected to the inductor switching node. |
| 4 | GND | power_in | Ground. |
| 5 | FB | input | Feedback input sensing the output voltage through a resistor divider to ground; a sensitive node that must be kept away from SW and BST. |
| 6 | COMP | passive | Connects the compensation network to make the converter work stably. |
| 7 | EN | input | Digital enable input: drive high to turn the regulator on and low to turn it off; internally pulled to VIN by a large resistor. |
| 8 | SS | passive | Soft-start adjustment: connect a capacitor to program the soft-start time. |
| 9 | EPAD | power_in | Exposed pad connected to GND internally; it must be connected to GND on the PCB to get full power. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | POWLICON |
| Package | ESOP-8 |
| Category | Power Supply Chip |
| Pins | 9 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| VIN to GND | -0.3 | 36 | V | 2 | |||
| SS to GND | -0.3 | 6 | V | 2 | |||
| EN to GND | -0.3 | 6 | V | 2 | |||
| FB to GND | -0.3 | 6 | V | 2 | |||
| COMP to GND | -0.3 | 6 | V | 2 | |||
| BST to SW | -0.3 | 6 | V | 2 | |||
| SW to GND | -1 | V | 2 | ||||
| Storage Temperature Range | TST | -65 | 150 | °C | 3 | ||
| Junction Temperature | TJ | 150 | °C | 3 | |||
| Lead Temperature | TL | 260 | °C | 3 | |||
| ESD Human Body Model | VESD | 2 | kV | HBM, Human body model | 3 | ||
| ESD Machine Model | VESD | 400 | V | MM model | 3 | ||
| VIN to GND | 6.5 | 30 | V | 3 | |||
| FB to GND | -0.3 | 6 | V | 3 | |||
| EN to GND | -0.3 | 6 | V | 3 | |||
| Output Voltage | VOUT | 0.5 | V | 3 | |||
| Output Current | IOUT | 0 | 2.4 | A | 3 | ||
| Operating junction temperature range | TJ | -40 | 125 | °C | 3 | ||
| High-Side Switch Leakage Current | Ileak_sw | 0 | 10 | µA | VEN = 0V, VSW = 0V | 4 | |
| High-Side Switch On-Resistance | RDS(ON)_H | 108 | mΩ | IOUT = 1A, VOUT = 5V | 4 | ||
| Low-Side Switch On-Resistance | RDS(ON)_L | 102 | mΩ | IOUT = 1A, VOUT = 5V | 4 | ||
| Operating quiescent current | IQ-NONSW | 1 | mA | VFB = 1V | 4 | ||
| Quiescent Supply Current | IQ-SW | 1.5 | mA | VFB = 0.9V, IOUT = 0A, VOUT = 5V | 4 | ||
| Minimum On Time | Ton | 100 | ns | Note 4: guaranteed by design, not tested in production | 4 | ||
| EN High Voltage | VIH | 1.2 | V | 4 | |||
| EN Low Voltage | VIL | 1 | V | 4 | |||
| Minimum input voltage for startup | VUVLO_up | 6.375 | V | 4 | |||
| VUVLO_down | VUVLO_down | 6 | V | 4 | |||
| VUVLO_hys | VUVLO_hys | 0.375 | V | 4 | |||
| Buck oscillator frequency | Foscb | 500 | kHz | 4 | |||
| Feedback Voltage | VFB | 0.9 | V | 6.5V ≤ VIN ≤ 36V | 4 | ||
| Feedback Over-voltage Threshold | VFB_OVP | 1 | V | 4 | |||
| Maximum Duty Cycle | Dmax | 96 | % | Note 4: guaranteed by design, not tested in production | 4 | ||
| Upper Switch Current Limit | Iocl_hs | 4.5 | A | Minimum Duty Cycle | 4 | ||
| Lower Switch Current Limit | Iocl_ls | 2.7 | A | From Drain to Source | 4 | ||
| Input Over voltage protection | Vinovp | 33 | V | 4 | |||
| Soft-Start Period | Tss | 0.5 | ms | 4 | |||
| Thermal Shutdown | Thsd | 155 | °C | Note 4: guaranteed by design, not tested in production | 4 | ||
| Thermal Shutdown Hysteresis | Thsdhys | 30 | °C | Note 4: guaranteed by design, not tested in production | 4 | ||
| Input current EN | IEN | 2.6 | uA | 4 | |||
| Soft-Start Charge Current | Ichg_ss | 4 | uA | 4 | |||
| Bootstrap refresh voltage | Vboot,refresh | 3.4 | V | 4 | |||
| Comp Source Current | Icmp_src | 60 | uA | VFB = 1.0 V | 4 | ||
| Comp Sink Current | Icmp_snk | 60 | uA | VFB = 0.8 V | 4 | ||
| COMP to current sense transconductance | Gm_PS | 5 | A/V | Note 4: guaranteed by design, not tested in production | 4 | ||
| Junction to ambient thermal resistance | θJA | 56 | °C/W | Measured on approximately 1” square of 1 oz copper (Note 3) | 3 | ||
| Junction to case thermal resistance | θJC | 45 | °C/W | Measured on approximately 1” square of 1 oz copper (Note 3) | 3 |
CAD (KiCad official)
- Symbol:
PL83251 - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm - 3D model: ESOP-8 (KiCad packages3D, STEP)
- 3D model files:
pl83251-etched.step/pl83251-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);pl83251.step/pl83251.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: POWLICON datasheet (12 pp, sha256
8ccf345d998193b5, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).