component
L6986F
Public Made by Adomby adom
STMicroelectronics DC-DC Converters, HTSSOP-16-EP. 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
markdownL6986F
STMicroelectronics · DC-DC Converters · HTSSOP-16-EP
L6986F from STMicroelectronics, in a HTSSOP-16-EP. 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 | RST | output | RST open-collector output is driven low when the output voltage is out of regulation and is released after an adjustable DELAY time once the output is above the active delay threshold. |
| 2 | VCC | power_out | Ceramic capacitor (≥ 470 nF) must be connected to filter the internal voltage reference, and this LDO pin supplies the embedded analog circuitry (VCC LDO output 2.9 V to 3.6 V, 3.3 V typ.). |
| 3 | SS/INH | bidirectional | An open-collector stage can disable the device when this pin is clamped to GND (INH mode), and an internal current generator (4 µA typ.) charges the external capacitor to implement soft-start. |
| 4 | SYNCH/ISKP | input | This pin provides master/slave synchronization in low noise mode (LNM) and selects the skip current level in low consumption mode (LCM). |
| 5 | FSW | input | A pull-up resistor (E24 series) to VCC or pull-down to GND selects the switching frequency, and pinstrapping is active only before the soft-start phase. |
| 6 | MLF | input | A pull-up resistor (E24 series) to VCC or pull-down to GND selects low noise mode or low consumption mode and the active RST threshold, and pinstrapping is active only before the soft-start phase. |
| 7 | COMP | passive | Output of the error amplifier, to which the compensation network is connected (absolute max -0.3 V to VCC + 0.3 V). |
| 8 | DELAY | passive | An external capacitor on this pin sets the time DELAY before the RST output is released after the output exceeds the reset threshold; if left floating, RST behaves like a Power Good signal. |
| 9 | FB | input | Inverting input of the error amplifier, with a voltage feedback reference of 0.841 V to 0.859 V (0.85 V typ.). |
| 10 | SGND | power_in | Signal ground, which must be connected to the exposed pad. |
| 11 | PGND | power_in | Power ground, which must be connected to the exposed pad. |
| 12 | PGND | power_in | Power ground, which must be connected to the exposed pad. |
| 13 | LX | output | Switching node; absolute maximum range is -0.3 V to VIN + 0.3 V and high-side/low-side switch current is limited to 2 A. |
| 14 | LX | output | Switching node; absolute maximum range is -0.3 V to VIN + 0.3 V and high-side/low-side switch current is limited to 2 A. |
| 15 | VIN | power_in | DC input voltage, operating range 4 V to 38 V (absolute maximum 40 V). |
| 16 | VBIAS | power_in | Typically connected to the regulated output voltage; an external voltage reference can supply part of the analog circuitry to improve light-load efficiency, and it must be connected to GND if not used. |
| 17 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | HTSSOP-16-EP |
| Category | Power Management (PMIC) |
| Pins | 17 |
CAD (KiCad official)
- Symbol:
L6986F - Footprint:
Package_SO:TSSOP-16-1EP_4.4x5mm_P0.65mm - 3D model: HTSSOP-16-EP (KiCad packages3D, STEP)
- 3D model files:
l6986f-etched.step/l6986f-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);l6986f.step/l6986f.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (64 pp, sha256
2773d92112882ade, retrieved 2026-10-07, 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).