component
LM5025BMTCX
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
markdownLM5025BMTCX
Texas Instruments · AC-DC Controllers And Regulators · TSSOP-16
LM5025BMTCX 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 | VIN | power_in | Input to the start-up regulator with an input range of 13V to 100V and transient capability to 105V. |
| 2 | RAMP | input | An external RC network from VIN sets the ramp slope, and the pin is discharged at the end of each cycle by an internal FET initiated by the internal clock or the V*Sec clamp comparator. |
| 3 | CS1 | input | Cycle-by-cycle current-limit input that puts the outputs into cycle-by-cycle limit when CS1 exceeds 0.25V and is held low for 50ns after OUT_A switches high for leading-edge blanking. |
| 4 | CS2 | input | Soft-restart current-sense input that disables the outputs and starts a soft start when CS2 exceeds 0.5V. |
| 5 | TIME | input | An RSET resistor from TIME to GND produces in-phase OUT_A and OUT_B pulses with overlap, while an RSET resistor from TIME to REF produces out-of-phase pulses with deadtime. |
| 6 | REF | power_out | Precision 5V reference output with a maximum output current of 10mA, to be locally decoupled with a 0.1µF capacitor, and it stays low until the VCC UV comparator and line UVLO comparator are satisfied. |
| 7 | VCC | power_out | Output of the internal high-voltage start-up regulator, regulated to 7.6V, which shuts down when an auxiliary winding raises the pin above the regulation setpoint. |
| 8 | OUT_A | output | Main switch PWM gate-driver output with 3A peak sink current capability. |
| 9 | OUT_B | output | Active clamp switch gate-driver output with 1.25A peak sink current capability. |
| 10 | PGND | power_in | Power ground that the datasheet says to connect directly to analog ground. |
| 11 | AGND | power_in | Analog ground that the datasheet says to connect directly to power ground. |
| 12 | SS | passive | An external capacitor and an internal 20µA current source set the soft-start ramp, which is reduced to 1µA following a CS2 over-current or over-temperature event. |
| 13 | COMP | input | PWM duty cycle is controlled by the COMP voltage, which is reduced by a fixed 1V offset before comparison with the RAMP pin signal. |
| 14 | RT | passive | An external timing resistor connected from RT to ground sets the internal oscillator frequency. |
| 15 | SYNC | input | Oscillator up/down synchronization input that accepts an external clock 20% lower than the free-running frequency, with no constraint on the maximum sync frequency. |
| 16 | UVLO | input | Line under-voltage shutdown input with a 2.5V comparator threshold and hysteresis set by a 20µA internal current source switched as the pin crosses 2.5V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-16 |
| Category | Power Management (PMIC) |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
LM5025BMTCX - Footprint:
Package_SO:TSSOP-16_4.4x5mm_P0.65mm - 3D model: TSSOP-16 (KiCad packages3D, STEP)
- 3D model files:
lm5025bmtcx-etched.step/lm5025bmtcx-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm5025bmtcx.step/lm5025bmtcx.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (25 pp, sha256
9229c103b4e628b5, retrieved 2026-10-11, 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).