Loads when you scroll to it. Unloads after 5 minutes in the background.

Symbol & Footprint

Schematic Symbol

Open full view ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.

PCB Footprint

Open full view ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Loads when you scroll to it. Unloads after 5 minutes in the background.
Download PDF
Contents

README

markdown

LM2700MTX-ADJ

Texas Instruments · DC-DC Converters · TSSOP-14

LM2700MTX-ADJ from Texas Instruments, in a TSSOP-14. 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 VC passive Compensation network connection to the output of the voltage error amplifier, where the series RC/CC network is connected to set loop compensation.
2 FB input Output voltage feedback input, regulated to 1.26V nominal and set by a resistor divider from VOUT.
3 SHDN input Active-low shutdown control input; SHDN voltage is rated 7V maximum and should never exceed VIN.
4 AGND power_in Analog ground for the sensitive control circuitry; tied directly to the PGND pins at the package, and the feedback and compensation networks should return to this pin if no analog ground plane is available.
5 PGND power_in Power ground for the driver and NMOS power device; PGND pins must be connected together directly at the part.
6 PGND power_in Power ground for the driver and NMOS power device; PGND pins must be connected together directly at the part.
7 PGND power_in Power ground for the driver and NMOS power device; PGND pins must be connected together directly at the part.
8 SW input Power switch input connected between the SW pins and PGND; SW voltage is rated 18V absolute maximum and 17.5V in operating conditions.
9 SW input Power switch input connected between the SW pins and PGND; SW voltage is rated 18V absolute maximum and 17.5V in operating conditions.
10 SW input Power switch input connected between the SW pins and PGND; SW voltage is rated 18V absolute maximum and 17.5V in operating conditions.
11 NC unconnected Pin not connected internally.
12 VIN power_in Analog power input; supply range is 2.2V to 12V.
13 FSLCT input Switching frequency select input: VIN selects 1.25MHz and ground selects 600kHz; rated 12V maximum and should never exceed VIN.
14 NC unconnected Not internally connected; the datasheet instructs to connect this pin to ground.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package TSSOP-14
Category Power Management ICs
Pins 14

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
VC Voltage VC 0.965 1.565 V 4
VIN Voltage VIN 12 V 4
SW Voltage 18 V 4
FB Voltage 7 V 4
SHDN Voltage 7 V 4
FSLCT Voltage 12 V 4
Maximum Junction Temperature 150 °C 4
Lead Temperature 300 °C 4
Vapor Phase Soldering Temperature 215 °C Vapor phase, 60 sec. 4
Infrared Soldering Temperature 220 °C Infrared, 15 sec. 4
ESD Human Body Model 2 kV Human body model 4
ESD Machine Model 200 V Machine model 4
Operating Junction Temperature Range -40 125 °C 4
Supply Voltage VIN 2.2 12 V 4
SW Voltage (operating) 17.5 V 4
Storage Temperature -65 150 °C 4
Quiescent Current (not switching, FSLCT=0V) IQ 1.2 2 mA FB = 2.2V (Not Switching), FSLCT = 0V 5
Quiescent Current (not switching, FSLCT=VIN) IQ 1.3 2 mA FB = 2.2V (Not Switching), FSLCT = VIN 5
Quiescent Current (shutdown) IQ 5 20 µA VSHDN = 0V 5
Feedback Voltage VFB 1.2285 1.26 1.2915 V 5
Switch Current Limit ICL 2.55 3.6 4.3 A VIN = 2.7V (0% duty cycle) 5
Feedback Voltage Line Regulation %VFB/ΔVIN 0.02 0.07 %/V 2.2V ≤ VIN ≤ 12.0V 5
FB Pin Bias Current IB 0.5 40 nA 5
Input Voltage Range VIN 2.2 12 V 5
Error Amp Transconductance gm 40 155 290 µmho ΔI = 5µA 5
Error Amp Voltage Gain AV 135 V/V 5
Maximum Duty Cycle DMAX 78 85 % FSLCT = Ground 5
Minimum Duty Cycle (FSLCT=Ground) DMIN 15 % FSLCT = Ground 5
Minimum Duty Cycle (FSLCT=VIN) DMIN 30 % FSLCT = VIN 5
Switching Frequency (FSLCT=Ground) fS 480 600 720 kHz FSLCT = Ground 5
Switching Frequency (FSLCT=VIN) fS 1 1.25 1.5 MHz FSLCT = VIN 5
Shutdown Pin Current (high) ISHDN 0.008 1 µA VSHDN = VIN 5
Shutdown Pin Current (low) ISHDN -0.5 -1 µA VSHDN = 0V 5
Switch Leakage Current IL 0.02 20 µA VSW = 18V 5
Switch RDSON RDSON 80 150 mΩ VIN = 2.7V, ISW = 2A 5
SHDN Threshold Output High ThSHDN 0.9 V Output High (second printed value 0.6 not assigned) 5
SHDN Threshold Output Low ThSHDN 0.6 V Output Low (second printed value 0.3 not assigned) 5
UVP On Threshold 1.95 2.05 2.2 V 5
UVP Off Threshold 1.85 1.95 2.1 V 5
Thermal Resistance Junction-to-Ambient (TSSOP) θJA 150 °C/W TSSOP, package only 5

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 capacitor can be placed in parallel with CIN, close to the VIN pin, to shunt any high frequency noise to ground. The output capacitor, COUT, should also be placed close to the IC. Any copper trace con 14

CAD (KiCad official)

  • Symbol: LM2700MTX-ADJ
  • Footprint: Package_SO:TSSOP-14_4.4x5mm_P0.65mm
  • 3D model: TSSOP-14 (KiCad packages3D, STEP)
  • 3D model files: lm2700mtx-adj-etched.step / lm2700mtx-adj-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm2700mtx-adj.step / lm2700mtx-adj.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (27 pp, sha256 a34db8e9ef23b968, retrieved 2026-10-30, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-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