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Contents

README

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MP2359DJ-LF-Z-MS

MSKSEMI · DC-DC Converters · SOT-23-6

MP2359DJ-LF-Z-MS from MSKSEMI, in a SOT-23-6. 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 BS passive Bootstrap pin: a capacitor connected between SW and BS is required to form a floating supply across the high-side switch driver.
2 GND power_in Ground pin, to be connected to a large copper area for thermal performance per the PCB layout guidance.
3 FB input Adjustable-version feedback input; connect FB to the center point of the external resistor divider (regulated feedback voltage 0.791 V to 0.823 V).
4 EN input Drive to a logic-high to enable the IC; drive to a logic-low to disable the IC and enter micro-power shutdown mode.
5 IN power_in Power supply pin; input voltage range is 4 V to 30 V per the electrical characteristics.
6 SW output Switching pin, the switch node driving the inductor.

Key specifications

Parameter Value
Manufacturer MSKSEMI
Package SOT-23-6
Category Power Management (PMIC)
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 Range 4 30 V 4
Regulated Feedback Voltage 0.791 0.807 0.823 V TA = 25°C, 4V≤VIN ≤18V 4
Oscillation Frequency 1.2 1.4 1.6 MHz 4
Maximum Duty Cycle 90 95 % VFB=0.807V 4
Supply Current in Operation 0.4 0.6 mA VEN=3.0V, VFB=1.1V 4
Supply Current in Shutdown 4 μA VEN =0 or EN = GND 4
High-Side Switch Leakage Current 1 uA VEN=0V, VSW=12V 4
Minimum On-Time 60 nS 4
Minimum Off-Time 140 nS 4
Soft Start 1.2 mS 4
Operating Temperature Range -40 85 °C 4
VIN, EN, Voltage -0.3 36 V 4
VFB Voltages VFB -0.3 6 V 4
Storage Temperature Range -65 150 °C 4
Junction Temperature 125 °C 4
ESD (Machine Made) MM 200 V Machine Made (MM) 4
ESD (Human Body Made) HMB 2 KV Human Body Made (HMB) 4
Lead Temperature (Soldering) 300 °C Soldering, 10s 4
VSW Voltage VSW -0.3 V 4
High-Side Switch On-Resistance 200 mΩ 4
Low-Side Switch On-Resistance 150 mΩ 4
Upper Switch Current Limit 1.5 A Minimum Duty Cycle 4
Thermal Shutdown 160 ℃ 4
Thermal Hysteresis 20 ℃ 4

CAD (KiCad official)

  • Symbol: MP2359DJ-LF-Z-MS
  • Footprint: Package_TO_SOT_SMD:SOT-23-6
  • 3D model: SOT-23-6 (KiCad packages3D, STEP)
  • 3D model files: mp2359dj-lf-z-ms-etched.step / mp2359dj-lf-z-ms-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mp2359dj-lf-z-ms.step / mp2359dj-lf-z-ms.glb are the bare package body.

Provenance

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

  • Datasheet: MSKSEMI datasheet (12 pp, sha256 7bf2ae55d3712b03, retrieved 2026-10-18, tier: lcsc)
  • 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