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LM2575S-5.0-MS
Public Made by Adomby adom
MSKSEMI DC-DC Converters, TO-263-5. 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
markdownLM2575S-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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm2575s-5-0-ms.step/lm2575s-5-0-ms.glbare 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, primaryclaude-haiku-5-5(text), consensusoff(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).