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LM2575S-5.0-MS

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MSKSEMI DC-DC Converters, TO-263-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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LM2575S-5.0-MS

MSKSEMI · DC-DC Converters · TO-263-5

LM2575S-5.0-MS from MSKSEMI, in a TO-263-5. 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 Positive input supply for the regulator, which must be bypassed close to the pin; the LM2575 input is rated up to 40V (57V for the LM2575HV).
2 Output output Internal switch output that swings between (Vin − VSAT) and approximately −0.5V with a duty cycle of about VOUT/VIN, so its PCB copper area should be kept minimal.
3 Gnd power_in Circuit ground for the regulator, to which the input capacitor and the ON/OFF pin reference.
4 Feedback input Senses the regulated output voltage to complete the feedback loop.
5 ON/OFF input Shutdown input: pulling below about 1.3V turns the regulator on, pulling above 1.3V (maximum 25V) shuts it down, and leaving it floating or tied to ground keeps it on.
6 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer MSKSEMI
Package TO-263-5
Category Power Supply Chip
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
Output Voltage VOUT 4.75 5 5.25 V 7V <= VIN <= 40V, 0.2A <= ILOAD <= 2A 4
Oscillator Frequency fO 110 150 173 kHz (Note 6) 5
Saturation Voltage VSAT 1.16 1.5 V IOUT = 2A (Notes 7, 8) 5
Current Limit Peak Current ICL 3.4 4.5 7.5 A Peak Current (Notes 7, 8) 5
Output Leakage Current IL 50 µA Output = 0V (Notes 7, 9) 5
Output Leakage Current IL 2 30 mA Output = −1V (Note 10) 5
Quiescent Current IQ 5 10 mA (Note 9) 5
Standby Quiescent Current ISTBY 80 250 µA ON/OFF pin = 5V (OFF) (Note 10) 5
ON/OFF Pin Logic Input Threshold Voltage Low (Regulator ON) VIH 0.6 V Test Circuit Figure 1 5
ON/OFF Pin Logic Input Threshold Voltage High (Regulator OFF) VIL 2 V Test Circuit Figure 1 5
ON/OFF Pin Input Current (Regulator OFF) IH 5 15 µA VLOGIC = 2.5V (Regulator OFF) 6
ON/OFF Pin Input Current (Regulator ON) IL 0.02 5 µA VLOGIC = 0.5V (Regulator ON) 6
ON/OFF Pin Input Voltage -0.3 25 V 3
Feedback Pin Voltage -0.3 25 V 3
Output Voltage to Ground -1 V Steady State 3
Storage Temperature Range -65 150 ˚C 3
ESD Susceptibility 2 kV Human Body Model 3
Maximum Junction Temperature 150 ˚C 3
Vapor Phase Lead Temperature 215 ˚C Vapor Phase (60 sec.) 3
Infrared Lead Temperature 245 ˚C Infrared (10 sec.) 3
Maximum Supply Voltage 45 V LM2575 3
Operating Temperature Range TJ -40 125 ˚C 3
Supply Voltage 40 V LM2575 3
Thermal Resistance Junction to Case JC 2 ˚C/W TO-220 or TO-263 Package, Junction to Case 5
Thermal Resistance Junction to Ambient (TO-263) JA 50 ˚C/W TO-263 Package, Junction to Ambient (Note 12) 5
Thermal Resistance Junction to Ambient (TO-263) JA 30 ˚C/W TO-263 Package, Junction to Ambient (Note 13) 5
Thermal Resistance Junction to Ambient (TO-263) JA 20 ˚C/W TO-263 Package, Junction to Ambient (Note 14) 5

CAD (KiCad official)

  • Symbol: LM2575S-5.0-MS
  • Footprint: Package_TO_SOT_SMD:TO-263-5_TabPin6
  • 3D model: TO-263-5 (KiCad packages3D, STEP)
  • 3D model files: lm2575s-5-0-ms-etched.step / lm2575s-5-0-ms-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm2575s-5-0-ms.step / lm2575s-5-0-ms.glb are the bare package body.

Provenance

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

  • Datasheet: MSKSEMI datasheet (19 pp, sha256 ba1ba56f85adba0d, retrieved 2026-10-27, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus off (skipped (clean text read)), 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