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LM2576HVS-12RG
Public Made by Adomby adom
HANSCHIP semiconductor 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
markdownLM2576HVS-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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm2576hvs-12rg.step/lm2576hvs-12rg.glbare 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, primaryclaude-sonnet-5-5(text+vision), consensusclaude-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).