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LM2576HVR-12

Public Made by Adom

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

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LM2576HVR-12

HTC Korea TAEJIN Tech · DC-DC Converters · TO-263-5

LM2576HVR-12 from HTC Korea TAEJIN Tech, 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 Input supply pin; operating supply voltage up to 60V (absolute maximum 63V).
2 VOUT output Switch output voltage pin of the regulator (output switch saturation voltage typically 1.55V at 3A, output to ground limited to -0.75V steady state).
3 GND power_in Ground pin.
4 FB/ADJ input Output voltage feedback or output adjust pin; for the 12V fixed version it senses the output, and the adjustable version uses VREF = 1.23V.
5 ON/OFF input Shutdown control pin; ON/OFF input voltage range is -0.3V to VIN, with TTL-level shutdown (VIH about 1.4-2.4V, VIL about 0.8-1.2V) giving about 50uA typical standby current.
6 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer HTC Korea TAEJIN Tech
Package TO-263-5
Category Power Management ICs
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) VO 11.76 12 12.24 V LM2576HV-12, VIN=25V, ILOAD=0.5A 4
Output Voltage over line/load (25°C) VO 11.52 12 12.54 V 0.5A ≤ ILOAD ≤ 3A, 15V ≤ VIN ≤ 55V 4
Output Voltage over line/load (full temp range) VO 11.4 12.66 V 0.5A ≤ ILOAD ≤ 3A, 15V ≤ VIN ≤ 55V, full operating temperature range 4
Efficiency 88 % LM2576HV-12, VIN=15V, ILOAD=3A 4
Oscillator Frequency (25°C) fO 47 52 58 kHZ Note 8 4
Oscillator Frequency (full temp range) fO 42 63 kHZ Note 8, full operating temperature range 4
Saturation Voltage (25°C) VSAT 1.4 1.55 V IO=3A (Note 4) 4
Saturation Voltage (full temp range) VSAT 1.7 V IO=3A (Note 4), full operating temperature range 4
Max Duty Cycle (ON) DC 93 98 % Note 5 4
Current Limit (25°C) ICL 4.2 5.8 6.9 A Note 4, 8 4
Current Limit (full temp range) ICL 3.5 7.5 A Note 4, 8, full operating temperature range 4
Output Leakage Current IL 7.5 mA Notes 6, 7, Output=0V 5
Quiescent Current IQ 5 10 mA Note 6 5
Standby Quiescent Current ISTBY 50 200 uA ON/OFF Pin = 5V (OFF), VIN = 60V 5
ON/OFF Logic Input High Level (25°C) VIH 2.2 1.4 V VO = 0V 5
ON/OFF Logic Input High Level (full temp range) VIH 2.4 V VO = 0V, full operating temperature range 5
ON/OFF Logic Input Low Level (25°C) VIL 1.2 1 V VO = Nominal Output Voltage 5
ON/OFF Logic Input Low Level (full temp range) VIL 0.8 V VO = Nominal Output Voltage, full operating temperature range 5
ON/OFF Pin Input Current (OFF) IIH 12 30 uA ON/OFF Pin = 5V (OFF) 5
ON/OFF Pin Input Current (ON) IIL 0 10 uA ON/OFF Pin = 0V (ON) 5
Input Supply Voltage VIN 63 V 1
ON/OFF Pin Input Voltage -0.3 V Max printed as +VIN 1
Output Voltage to Ground (Steady State) -0.75 V 1
Lead Temperature (Soldering, 5 sec) TSOL 260 ℃ 5 sec 1
Storage Temperature Range TSTG -65 150 ℃ 1
Maximum Junction Temperature TJOPR 150 ℃ 1
Supply Voltage VIN 60 V Operating Ratings 2
Temperature Range TJ -40 125 ℃ Operating Ratings 2

CAD (KiCad official)

  • Symbol: LM2576HVR-12
  • Footprint: Package_TO_SOT_SMD:TO-263-5_TabPin6
  • 3D model: TO-263-5 (KiCad packages3D, STEP)
  • 3D model files: lm2576hvr-12-etched.step / lm2576hvr-12-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm2576hvr-12.step / lm2576hvr-12.glb are the bare package body.

Provenance

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

  • Datasheet: HTC Korea TAEJIN Tech datasheet (8 pp, sha256 d07d513e4d37f22f, retrieved 2026-10-22, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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