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LM2576HVS-15

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

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LM2576HVS-15

HGSEMI · DC-DC Converters · TO-263-5

LM2576HVS-15 from HGSEMI, 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 Unregulated supply input; maximum supply voltage is 60 V for the LM2576HV (40 V for the standard LM2576).
2 Output power_out Switch output of the buck regulator; steady-state output voltage to ground must not go below -1 V, and a Schottky catch diode (Vf < 0.5 V) is recommended.
3 Ground power_in Ground pin; the package tab is also connected to GND.
4 Feedback input Regulator feedback sense input taken from the output voltage (15 V fixed version for this MPN).
5 ON/OFF input Active-low shutdown input; the pin is rated -0.3 V to +VIN, the shutdown logic high threshold is 2.2/2.4 V min, the logic low threshold is 1.0/0.8 V max, and standby current is 50 µA typ.
6 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer HGSEMI
Package TO-263-5
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
Output voltage, VIN = 25V, Iload = 0.5A VOUT 14.7 15 15.3 V VIN = 25V, Iload = 0.5A 7
Output voltage, line and load regulation VOUT 14.4 15 15.68 V 18V ≤ VIN ≤ 60V, 0.5A ≤ Iload ≤ 3A 7
Output voltage, line and load regulation (bold, full junction temperature range) VOUT 14.25 15 15.83 V 18V ≤ VIN ≤ 60V, 0.5A ≤ Iload ≤ 3A; bold: full operating junction temperature range 7
Oscillator frequency fO 47 52 58 kHz Note 10 8
Oscillator frequency (bold, full junction temperature range) fO 42 52 63 kHz Note 10; bold: full operating junction temperature range 8
Saturation voltage VSAT 1.4 1.8 V IOUT = 3A (Note 3) 8
Saturation voltage (bold, full junction temperature range) VSAT 1.4 2 V IOUT = 3A (Note 3); bold: full operating junction temperature range 8
Maximum duty cycle (ON) DC 93 98 % Note 4 8
Current limit ICL 4.2 5.8 6.9 A Notes 3, 10 8
Current limit (bold, full junction temperature range) ICL 3.5 5.8 7.5 A Notes 3, 10; bold: full operating junction temperature range 8
Output leakage current IL 7.5 mA Output = 0V; Notes 5, 6 8
Output leakage current IL 2 mA Output = -1V; Notes 5, 6 8
Output leakage current (bold, full junction temperature range) IL 30 mA Output = -1V; Notes 5, 6; bold: full operating junction temperature range 8
Quiescent current IQ 5 10 mA Note 5 8
Standby quiescent current ISTBY 50 200 µA ON/OFF pin = 5V (OFF) 8
ON/OFF control logic input high level VIH 2.2 1.4 V VOUT = 0V 8
ON/OFF control logic input high level (bold, full junction temperature range) VIH 2.4 1.4 V VOUT = 0V; bold: full operating junction temperature range 8
ON/OFF control logic input low level VIL 1.2 1 V VOUT = nominal input voltage 8
ON/OFF control logic input low level (bold, full junction temperature range) VIL 1.2 0.8 V VOUT = nominal input voltage; bold: full operating junction temperature range 8
ON/OFF control input current IIH 12 30 µA ON/OFF control = 5V (OFF) 8
ON/OFF control input current IIL 0 10 µA ON/OFF control = 0V (ON) 8
Junction-to-ambient thermal resistance, S (TO-263) package θJA 50 ℃/W 0.5 in² copper area (Note 9) 8
Junction-to-ambient thermal resistance, S (TO-263) package θJA 37 ℃/W 1 in² copper area (Note 9) 8
Junction-to-ambient thermal resistance, S (TO-263) package θJA 32 ℃/W 1.6 in² or more copper area (Note 9) 8
Junction-to-ambient thermal resistance RθJA 42.6 ℃/W TO-263 column 5
Junction-to-case thermal resistance, top RθJC(top) 43.3 ℃/W TO-263 column 5
Junction-to-board thermal resistance RθJB 22.4 ℃/W TO-263 column 5
Junction-to-top characterization parameter ψJT 10.7 ℃/W TO-263 column 5
Junction-to-board characterization parameter ψJB 21.3 ℃/W TO-263 column 5
Junction-to-case thermal resistance, bottom RθJC(bot) 0.4 ℃/W TO-263 column 5
Maximum supply voltage (LM2576HV) VIN 60 V LM2576HV 5
ON/OFF pin input voltage VON_OFF -0.3 V Range -0.3 V ≤ V ≤ +VIN 5
Output voltage to ground (steady state) -1 V 5
Storage temperature range TSTG -65 150 ℃ 5
Maximum junction temperature TJ 150 ℃ 5
Minimum ESD rating ESD 2 kV C = 100 pF, R = 1.5 kΩ 5
Lead temperature (soldering, 10 s), TO-263 TLEAD 245 ℃ TO-220/TO-263, 10 s soldering 5
Supply voltage (LM2576HV) VIN 60 V LM2576HV 5
Operating junction temperature range TA -40 125 ℃ Note 1; industrial grade, not automotive 5

CAD (KiCad official)

  • Symbol: LM2576HVS-15
  • Footprint: Package_TO_SOT_SMD:TO-263-5_TabPin6
  • 3D model: TO-263-5 (KiCad packages3D, STEP)
  • 3D model files: lm2576hvs-15-etched.step / lm2576hvs-15-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm2576hvs-15.step / lm2576hvs-15.glb are the bare package body.

Provenance

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

  • Datasheet: HGSEMI datasheet (14 pp, sha256 eddc94f04fe787be, retrieved 2026-10-19, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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