component

LM2842YMKX-ADJL

Public Made by Adom

by adom

Texas Instruments DC-DC Converters, TSOT-23-6L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management icslm2842ymkx-adjlfactory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
Download ZIP Propose a change
Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 12d ago
viewers lm2842ymkx-adjl: viewers · Ray 12d ago
lm2842ymkx-adjl-etched.glb Publish 0.1.0 · Ray 12d ago
lm2842ymkx-adjl-etched.step lm2842ymkx-adjl: factory component page (tier=mfr) · Ray 12d ago
lm2842ymkx-adjl-hero.glb lm2842ymkx-adjl: hero GLB from the etched model (keeps the MPN mark) · Ray 12d ago
lm2842ymkx-adjl-hero.overlay.json Publish 0.1.0 · Ray 12d ago
lm2842ymkx-adjl.glb Publish 0.1.0 · Ray 12d ago
lm2842ymkx-adjl.kicad_mod Publish 0.1.0 · Ray 12d ago
lm2842ymkx-adjl.kicad_sym Publish 0.1.0 · Ray 12d ago
lm2842ymkx-adjl.lbr Publish 0.1.0 · Ray 12d ago
lm2842ymkx-adjl.step Publish 0.1.0 · Ray 12d ago
package.json Publish 0.1.0 · Ray 12d ago
page.json Set visibility: public · Ray 12d ago
README.md Publish 0.1.0 · Ray 12d ago

LM2842YMKX-ADJL

Texas Instruments · DC-DC Converters · TSOT-23-6L

LM2842YMKX-ADJL from Texas Instruments, in a TSOT-23-6L. 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 CB input SW FET gate bias voltage pin; connect the CBOOT capacitor between CB and SW (max 7 V above SW voltage).
2 GND power_in Ground connection.
3 FB input Feedback pin that sets the divider ratio with VOUT = VFB(1 + R1/R2), using resistors from 100 Ω to 10 kΩ to avoid input bias errors.
4 SHDN input Logic-level shutdown input: pull to GND to disable, pull high to enable, tie to VIN if unused and do not allow to float (abs max −0.3 V to VIN + 0.3 V, below 45 V).
5 VIN power_in Power input voltage pin with a 4.5 V to 42 V normal operating range.
6 SW output Power FET output; connect to the inductor, diode and CBOOT capacitor (rated up to 42 V recommended, 45 V absolute max).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package TSOT-23-6L
Category Power Management ICs
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
Input voltage VIN -0.3 45 V 4
SHDN voltage SHDN -0.3 45 V (VIN + 0.3 V) < 45 V 4
SW voltage SW -0.3 45 V 4
CB voltage above SW voltage CB 7 V 4
FB voltage FB -0.3 5 V 4
Maximum junction temperature TJ(MAX) 150 °C 4
Storage temperature Tstg -65 150 °C 4
ESD HBM V(ESD) -2000 2000 V Human-body model per ANSI/ESDA/JEDEC JS-001 4
Operating junction temperature TJ -40 125 °C 4
Input voltage VIN 4.5 42 V 4
SW voltage SW 42 V 4
Junction-to-ambient thermal resistance RθJA 121 °C/W DDC (SOT) 6 pins 4
Junction-to-case (top) thermal resistance RθJC(top) 94 °C/W DDC (SOT) 6 pins 4
Quiescent current, shutdown IQ 16 40 µA SHDN = 0 V; max at TJ = −40°C to 125°C 5
Quiescent current, ON not switching IQ 1.3 1.75 mA Device ON, not switching; max at TJ = −40°C to 125°C 5
Quiescent current, ON no load IQ 1.35 1.85 mA Device ON, no load; max at TJ = −40°C to 125°C 5
Switch ON resistance RDSON 0.9 1.6 Ω Includes bond wires, VIN to SW; max at TJ = −40°C to 125°C 5
Switch leakage current ILSW 0 0.5 µA VIN = 42 V; max at TJ = −40°C to 125°C 5
Switch current limit ICL 1.15 1.7 A LM2842, at 0% duty cycle; max at TJ = −40°C to 125°C 5
Feedback pin bias current IFB 0.1 1 µA LM284[0,1,2]; max at TJ = −40°C to 125°C 5
FB pin reference voltage VFB 0.747 0.765 0.782 V min/max at TJ = −40°C to 125°C 5
Minimum ON-time tON(min) 100 150 ns max at TJ = −40°C to 125°C 5
Minimum OFF-time tOFF(min) 104 200 ns Y option; max at TJ = −40°C to 125°C 5
Switching frequency fSW 0.95 1.25 1.5 MHz Y option, VFB = 0.5 V; min/max at TJ = −40°C to 125°C 5
Switching frequency, foldback fSW 0.35 MHz Y option, VFB = 0 V 5
Maximum duty cycle DMAX 81 87 % Y option; min at TJ = −40°C to 125°C 5
UVLO on threshold VUVP 3.7 4.4 V On threshold; max at TJ = −40°C to 125°C 6
UVLO off threshold VUVP 3.25 3.5 V Off threshold; min at TJ = −40°C to 125°C 6
Shutdown threshold, device ON VSHDN 1 2.3 V Device ON; max at TJ = −40°C to 125°C 6
Shutdown threshold, device OFF VSHDN 0.3 0.9 V Device OFF; min at TJ = −40°C to 125°C 6
Shutdown pin input bias current ISHDN 0.05 1.5 µA VSHDN = 2.3 V; max at TJ = −40°C to 125°C 6
Shutdown pin input bias current ISHDN 0.02 1.5 µA VSHDN = 0 V; max at TJ = −40°C to 125°C 6

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts copper to the FB pin, and away from the inductor to minimize coupling noise into the feedback pin. The input bypass capacitor CIN must be placed close to the VIN pin. This reduces copper trace resistance, wh 16

CAD (KiCad official)

  • Symbol: LM2842YMKX-ADJL
  • Footprint: Package_TO_SOT_SMD:TSOT-23-6
  • 3D model: TSOT-23-6L (KiCad packages3D, STEP)
  • 3D model files: lm2842ymkx-adjl-etched.step / lm2842ymkx-adjl-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm2842ymkx-adjl.step / lm2842ymkx-adjl.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (26 pp, sha256 bb2b63139f205e20, retrieved 2026-10-27, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-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).

Datasheet PDF