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LM2576HVS-12RG

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

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LM2576HVS-12RG

HANSCHIP semiconductor · DC-DC Converters · TO-263-5

LM2576HVS-12RG from HANSCHIP semiconductor, 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 input supply; maximum 55 V for LM2576HV (40 V for LM2576), per absolute maximum ratings.
2 Output output Switch output of the regulator; output voltage to ground (steady state) is rated -1 V minimum.
3 Ground power_in Ground pin; the package tab is also ground.
4 Feedback input Feedback sense input; for the 12 V fixed version it senses the output voltage through the internal divider (R2 = 8.84k).
5 ON/OFF input Active-low shutdown input with TTL-level thresholds (VIH 2.2/2.4 V min, VIL 1.0/0.8 V max); input range -0.3 V to VIN; standby current 50 µA typical.
6 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer HANSCHIP semiconductor
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, I load = 0.5A VOUT 11.76 12 12.24 V VIN = 25V, I load = 0.5A 6
Output voltage LM2576HV-12, 25°C limit (standard-font value) VOUT 11.52 12 12.54 V 15V ≦ VIN ≦ 55V, 0.5A ≦ I load ≦ 3A 6
Output voltage LM2576HV-12, full operating junction temperature range (bold-font value) VOUT 11.4 12 12.66 V 15V ≦ VIN ≦ 55V, 0.5A ≦ I load ≦ 3A 6
Oscillator frequency (standard-font limit) fO 47 52 58 kHz Note 11 7
Oscillator frequency (bold-font full-range limit) fO 42 52 63 kHz Note 11 7
Saturation voltage (standard-font limit) VSAT 1.4 1.8 V IOUT = 3A (Note 4) 7
Saturation voltage (bold-font full-range limit) VSAT 1.4 2 V IOUT = 3A (Note 4) 7
Maximum duty cycle (ON) DC 93 98 % Note 5 (feedback pin disconnected from output, tied to 0 V) 7
Current limit (standard-font limit) ICL 4.2 5.8 6.9 A Notes 4, 11 7
Current limit (bold-font full-range limit) ICL 3.5 5.8 7.5 A Notes 4, 11 7
Output leakage current, output = 0 V IL 7.5 mA Output = 0 V (Notes 6, 7) 7
Output leakage current, output = -1 V (standard-font limit) IL 2 mA Output = -1 V (Notes 6, 7) 7
Output leakage current, output = -1 V (bold-font full-range limit) IL 30 mA Output = -1 V (Notes 6, 7) 7
Quiescent current IQ 5 10 mA Note 6 7
Standby quiescent current ISTBY 50 200 µA ON/OFF pin = 5V (off) 7
ON/OFF control logic input level high (standard-font limit) VIH 2.2 1.4 V VOUT = 0V 7
ON/OFF control logic input level high (bold-font full-range limit) VIH 2.4 1.4 V VOUT = 0V 7
ON/OFF control logic input level low (standard-font limit) VIL 1.2 1 V VOUT = nominal input voltage 7
ON/OFF control logic input level low (bold-font full-range limit) VIL 1.2 0.8 V VOUT = nominal input voltage 7
ON/OFF control input current high IIH 12 30 µA ON/OFF = 5V (off) 7
ON/OFF control input current low IIL 0 10 µA ON/OFF = 0V (on) 7
Maximum supply voltage LM2576HV VIN 55 V 4
ON/OFF pin input voltage VON_OFF -0.3 V Range -0.3 V to +VIN 4
Output voltage to ground (steady state) -1 V Steady state 4
ESD rating ESD 2 kV C = 100 pF, R = 1.5 kΩ 4
Lead temperature (soldering, 10 s) TLEAD 245 ℃ Soldering, 10 s 4
Storage temperature range TSTG -65 150 ℃ 4
Maximum junction temperature TJ 150 ℃ 4
Supply voltage LM2576HV VIN 55 V 5
Operating junction temperature range TA -40 125 ℃ 5
Thermal resistance, junction to ambient (TO-263) RθJA 42.6 ℃/W TO-263 package 5
Thermal resistance, junction to case (top) (TO-263) RθJC(top) 43.3 ℃/W TO-263 package 5
Thermal resistance, junction to board (TO-263) RθJB 22.4 ℃/W TO-263 package 5
Junction-to-top characterization parameter (TO-263) ψJT 10.7 ℃/W TO-263 package 5
Junction-to-board characterization parameter (TO-263) ψJB 21.3 ℃/W TO-263 package 5
Thermal resistance, junction to case (bottom) (TO-263) RθJC(bot) 0.4 ℃/W TO-263 package 5
Thermal resistance, junction to ambient, S-type (TO-263) package θJA 50 °C/W Note 10: 0.5 in² copper area 7

CAD (KiCad official)

  • Symbol: LM2576HVS-12RG
  • Footprint: Package_TO_SOT_SMD:TO-263-5_TabPin6
  • 3D model: TO-263-5 (KiCad packages3D, STEP)
  • 3D model files: lm2576hvs-12rg-etched.step / lm2576hvs-12rg-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm2576hvs-12rg.step / lm2576hvs-12rg.glb are the bare package body.

Provenance

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

  • Datasheet: HANSCHIP semiconductor datasheet (13 pp, sha256 ce51146fc016d417, 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