component
LM5115MTCX
Public Made by Adomby adom
Texas Instruments AC-DC Controllers And Regulators, TSSOP-16. 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
markdownLM5115MTCX
Texas Instruments · AC-DC Controllers And Regulators · TSSOP-16
LM5115MTCX from Texas Instruments, in a TSSOP-16. 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 | CS | input | Positive input of the current sense amplifier, with a low-inductance sense resistor connected between CS and VOUT; current limiting occurs when the CS-to-VOUT differential exceeds 45mV (typical). |
| 2 | VOUT | input | Negative input of the current sense amplifier, connected directly to the output voltage, which the sense amplifier supports from 0V to 13.5V. |
| 3 | AGND | power_in | Analog ground, to be connected directly to the power ground pin (PGND). |
| 4 | CO | output | Current limit output; connect to COMP for normal current limit operation, or leave open to disable the current limit function. |
| 5 | COMP | output | Error amplifier output (compensation), with its pull-up provided by an internal 300µA current source. |
| 6 | FB | input | Error amplifier inverting input, connected to the regulated output through the feedback divider and compensation, with a feedback reference of 0.75V (0.737V to 0.763V) measured at this pin. |
| 7 | SS | passive | Soft-start control, where an external capacitor with the internal resistor divider sets the soft-start time and the steady-state SS voltage is 0.75V (typical). |
| 8 | RAMP | passive | PWM ramp signal, where an external capacitor sets the voltage-mode PWM ramp slope and is discharged at the end of every cycle by an internal MOSFET. |
| 9 | SYNC | input | Synchronization input, a low-impedance current input that sets the RAMP capacitor charge current and the free-run oscillator frequency in DC input mode. |
| 10 | PGND | power_in | Power ground, to be connected directly to the analog ground pin (AGND). |
| 11 | LO | output | Low-side gate driver output, to be connected to the gate of the low-side synchronous MOSFET through a short, low-inductance path. |
| 12 | VCC | power_out | Output of the internal LDO bias regulator, nominally 7V, to be locally decoupled to PGND with a low-ESR/ESL capacitor placed close to the controller. |
| 13 | HS | passive | High-side MOSFET source connection, to be connected to the negative terminal of the bootstrap capacitor and the source of the high-side MOSFET. |
| 14 | HO | output | High-side gate driver output, to be connected to the gate of the high-side MOSFET through a short, low-inductance path. |
| 15 | HB | power_in | High-side gate driver bootstrap rail, to be connected to the bootstrap diode cathode and the positive terminal of the bootstrap capacitor, placed as close to the controller as possible. |
| 16 | VBIAS | power_in | Supply bias input for the LDO bias regulator and current sense amplifier, with an input range of 4.5V to 30V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-16 |
| Category | Power Management (PMIC) |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
LM5115MTCX - Footprint:
Package_SO:TSSOP-16_4.4x5mm_P0.65mm - 3D model: TSSOP-16 (KiCad packages3D, STEP)
- 3D model files:
lm5115mtcx-etched.step/lm5115mtcx-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm5115mtcx.step/lm5115mtcx.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (27 pp, sha256
56aa3e6dcc80a852, retrieved 2026-10-08, 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).