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LM2576HVS-ADJRG
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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-ADJRG
HANSCHIP semiconductor · DC-DC Converters · TO-263-5
LM2576HVS-ADJRG 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 supply input; maximum 55 V for the LM2576HV (40 V for the LM2576). |
| 2 | Output | output | Switching regulator output; the output switch is current-limited cycle by cycle and thermally protected. |
| 3 | Ground | power_in | Ground pin; the package tab is also ground. |
| 4 | Feedback | input | Feedback sense input; the adjustable version sets VOUT from a resistor divider with a 1.23 V reference. |
| 5 | ON/OFF | input | Active-low TTL shutdown input (low = on, high = off); ON/OFF voltage range is -0.3 V to VIN, and standby current is typically 50 µA. |
| 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 (ADJ, VIN=12V, 0.5A load) | VOUT | 1.217 | 1.23 | 1.243 | V | VIN = 12V, I load = 0.5A, VOUT = 5V (Fig. 2) | 6 |
| Output voltage (LM2576HV-ADJ, 8V to 55V input, standard font TJ=25°C) | VOUT | 1.193 | 1.23 | 1.273 | V | 8V ≤ VIN ≤ 55V, 0.5A ≤ I load ≤ 3A, VOUT = 5V; standard-font limit at TJ=25°C | 6 |
| Output voltage (LM2576HV-ADJ, 8V to 55V input, full operating temperature range) | VOUT | 1.18 | 1.23 | 1.286 | V | 8V ≤ VIN ≤ 55V, 0.5A ≤ I load ≤ 3A, VOUT = 5V; bold limit over full operating junction temperature range | 6 |
| Feedback bias current | Ib | 50 | 100 | nA | VOUT = 5V (adjustable types only); standard-font limit at TJ=25°C | 7 | |
| Feedback bias current (full range) | Ib | 50 | 500 | nA | VOUT = 5V (adjustable types only); bold limit over full operating junction temperature range | 7 | |
| Oscillator frequency | fO | 47 | 52 | 58 | kHz | TJ=25°C (note 11) | 7 |
| Oscillator frequency (full range) | fO | 42 | 52 | 63 | kHz | Full operating junction temperature range (bold limit, note 11) | 7 |
| Current limit | ICL | 4.2 | 5.8 | 6.9 | A | TJ=25°C (notes 4, 11) | 7 |
| Current limit (full range) | ICL | 3.5 | 5.8 | 7.5 | A | Full operating junction temperature range (bold limit, notes 4, 11) | 7 |
| Saturation voltage | VSAT | 1.4 | 1.8 | V | IOUT = 3A (note 4); TJ=25°C | 7 | |
| Saturation voltage (full range) | VSAT | 1.4 | 2 | V | IOUT = 3A (note 4); full operating junction temperature range | 7 | |
| Maximum duty cycle (ON) | DC | 93 | 98 | % | Feedback pin disconnected from output and tied to 0V (note 5) | 7 | |
| Quiescent current | IQ | 5 | 10 | mA | Feedback pin disconnected from output and tied to +12V (note 6) | 7 | |
| Standby quiescent current | ISTBY | 50 | 200 | µA | ON/OFF pin = 5V (off) | 7 | |
| Output leakage current | IL | 30 | mA | Output = 0V; Output = -1V (notes 6, 7) | 7 | ||
| ON/OFF control logic input high level (standard font TJ=25°C) | VIH | 2.2 | 1.4 | V | VOUT = 0V; TJ=25°C | 7 | |
| ON/OFF control logic input high level (full range) | VIH | 2.4 | 1.4 | V | VOUT = 0V; full operating junction temperature range | 7 | |
| ON/OFF control logic input low level (standard font TJ=25°C) | VIL | 1.2 | 1 | V | VOUT = nominal input voltage; TJ=25°C | 7 | |
| ON/OFF control logic input low level (full range) | VIL | 1.2 | 0.8 | V | VOUT = nominal input voltage; full operating junction temperature range | 7 | |
| ON/OFF control input current high | IIH | 12 | 30 | µA | ON/OFF control = 5V (off) | 7 | |
| ON/OFF control input current low | IIL | 0 | 10 | µA | ON/OFF control = 0V (on) | 7 | |
| Supply voltage (recommended, LM2576HV) | VIN | 55 | V | LM2576HV | 5 | ||
| Operating junction temperature range | TA | -40 | 125 | ℃ | 5 | ||
| Maximum supply voltage (absolute, LM2576HV) | VIN | 55 | V | LM2576HV | 4 | ||
| ON/OFF pin input voltage | VON_OFF | -0.3 | V | V ≤ +VIN | 4 | ||
| Output voltage to ground (steady state) | -1 | V | Steady state | 4 | |||
| Storage temperature range | TSTG | -65 | 150 | ℃ | 4 | ||
| Maximum junction temperature | TJ | 150 | ℃ | 4 | |||
| ESD rating | ESD | 2 | kV | C = 100 pF, R = 1.5 kΩ | 4 | ||
| Lead temperature (soldering, 10 s) | TLEAD | 245 | ℃ | 10 s soldering | 4 | ||
| Junction-to-ambient thermal resistance (TO-263 column) | RθJA | 42.6 | ℃/W | TO-263 package | 5 | ||
| Junction-to-case thermal resistance (top, TO-263 column) | RθJC(top) | 43.3 | ℃/W | TO-263 package | 5 | ||
| Junction-to-board thermal resistance (TO-263 column) | RθJB | 22.4 | ℃/W | TO-263 package | 5 | ||
| Junction-to-top characterization parameter (TO-263 column) | ψJT | 10.7 | ℃/W | TO-263 package | 5 | ||
| Junction-to-board characterization parameter (TO-263 column) | ψJB | 21.3 | ℃/W | TO-263 package | 5 | ||
| Junction-to-case thermal resistance (bottom, TO-263 column) | RθJC (bot) | 0.4 | ℃/W | TO-263 package | 5 | ||
| Junction-to-ambient thermal resistance (S-type package) | θJA | 50 | °C/W | S-type (TO-263) package, 0.5 in² copper area (note 10) | 7 |
CAD (KiCad official)
- Symbol:
LM2576HVS-ADJRG - Footprint:
Package_TO_SOT_SMD:TO-263-5_TabPin6 - 3D model: TO-263-5 (KiCad packages3D, STEP)
- 3D model files:
lm2576hvs-adjrg-etched.step/lm2576hvs-adjrg-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm2576hvs-adjrg.step/lm2576hvs-adjrg.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 2026-10-18, 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).
# LM2576HVS-ADJRG
**HANSCHIP semiconductor** · DC-DC Converters · TO-263-5
LM2576HVS-ADJRG 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 supply input; maximum 55 V for the LM2576HV (40 V for the LM2576). |
| 2 | Output | output | Switching regulator output; the output switch is current-limited cycle by cycle and thermally protected. |
| 3 | Ground | power_in | Ground pin; the package tab is also ground. |
| 4 | Feedback | input | Feedback sense input; the adjustable version sets VOUT from a resistor divider with a 1.23 V reference. |
| 5 | ON/OFF | input | Active-low TTL shutdown input (low = on, high = off); ON/OFF voltage range is -0.3 V to VIN, and standby current is typically 50 µA. |
| 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 (ADJ, VIN=12V, 0.5A load) | VOUT | 1.217 | 1.23 | 1.243 | V | VIN = 12V, I load = 0.5A, VOUT = 5V (Fig. 2) | 6 |
| Output voltage (LM2576HV-ADJ, 8V to 55V input, standard font TJ=25°C) | VOUT | 1.193 | 1.23 | 1.273 | V | 8V ≤ VIN ≤ 55V, 0.5A ≤ I load ≤ 3A, VOUT = 5V; standard-font limit at TJ=25°C | 6 |
| Output voltage (LM2576HV-ADJ, 8V to 55V input, full operating temperature range) | VOUT | 1.18 | 1.23 | 1.286 | V | 8V ≤ VIN ≤ 55V, 0.5A ≤ I load ≤ 3A, VOUT = 5V; bold limit over full operating junction temperature range | 6 |
| Feedback bias current | Ib | | 50 | 100 | nA | VOUT = 5V (adjustable types only); standard-font limit at TJ=25°C | 7 |
| Feedback bias current (full range) | Ib | | 50 | 500 | nA | VOUT = 5V (adjustable types only); bold limit over full operating junction temperature range | 7 |
| Oscillator frequency | fO | 47 | 52 | 58 | kHz | TJ=25°C (note 11) | 7 |
| Oscillator frequency (full range) | fO | 42 | 52 | 63 | kHz | Full operating junction temperature range (bold limit, note 11) | 7 |
| Current limit | ICL | 4.2 | 5.8 | 6.9 | A | TJ=25°C (notes 4, 11) | 7 |
| Current limit (full range) | ICL | 3.5 | 5.8 | 7.5 | A | Full operating junction temperature range (bold limit, notes 4, 11) | 7 |
| Saturation voltage | VSAT | | 1.4 | 1.8 | V | IOUT = 3A (note 4); TJ=25°C | 7 |
| Saturation voltage (full range) | VSAT | | 1.4 | 2 | V | IOUT = 3A (note 4); full operating junction temperature range | 7 |
| Maximum duty cycle (ON) | DC | 93 | 98 | | % | Feedback pin disconnected from output and tied to 0V (note 5) | 7 |
| Quiescent current | IQ | | 5 | 10 | mA | Feedback pin disconnected from output and tied to +12V (note 6) | 7 |
| Standby quiescent current | ISTBY | | 50 | 200 | µA | ON/OFF pin = 5V (off) | 7 |
| Output leakage current | IL | | | 30 | mA | Output = 0V; Output = -1V (notes 6, 7) | 7 |
| ON/OFF control logic input high level (standard font TJ=25°C) | VIH | 2.2 | 1.4 | | V | VOUT = 0V; TJ=25°C | 7 |
| ON/OFF control logic input high level (full range) | VIH | 2.4 | 1.4 | | V | VOUT = 0V; full operating junction temperature range | 7 |
| ON/OFF control logic input low level (standard font TJ=25°C) | VIL | | 1.2 | 1 | V | VOUT = nominal input voltage; TJ=25°C | 7 |
| ON/OFF control logic input low level (full range) | VIL | | 1.2 | 0.8 | V | VOUT = nominal input voltage; full operating junction temperature range | 7 |
| ON/OFF control input current high | IIH | | 12 | 30 | µA | ON/OFF control = 5V (off) | 7 |
| ON/OFF control input current low | IIL | | 0 | 10 | µA | ON/OFF control = 0V (on) | 7 |
| Supply voltage (recommended, LM2576HV) | VIN | | | 55 | V | LM2576HV | 5 |
| Operating junction temperature range | TA | -40 | | 125 | ℃ | | 5 |
| Maximum supply voltage (absolute, LM2576HV) | VIN | | | 55 | V | LM2576HV | 4 |
| ON/OFF pin input voltage | VON_OFF | -0.3 | | | V | V ≤ +VIN | 4 |
| Output voltage to ground (steady state) | | -1 | | | V | Steady state | 4 |
| Storage temperature range | TSTG | -65 | | 150 | ℃ | | 4 |
| Maximum junction temperature | TJ | | | 150 | ℃ | | 4 |
| ESD rating | ESD | 2 | | | kV | C = 100 pF, R = 1.5 kΩ | 4 |
| Lead temperature (soldering, 10 s) | TLEAD | | | 245 | ℃ | 10 s soldering | 4 |
| Junction-to-ambient thermal resistance (TO-263 column) | RθJA | | 42.6 | | ℃/W | TO-263 package | 5 |
| Junction-to-case thermal resistance (top, TO-263 column) | RθJC(top) | | 43.3 | | ℃/W | TO-263 package | 5 |
| Junction-to-board thermal resistance (TO-263 column) | RθJB | | 22.4 | | ℃/W | TO-263 package | 5 |
| Junction-to-top characterization parameter (TO-263 column) | ψJT | | 10.7 | | ℃/W | TO-263 package | 5 |
| Junction-to-board characterization parameter (TO-263 column) | ψJB | | 21.3 | | ℃/W | TO-263 package | 5 |
| Junction-to-case thermal resistance (bottom, TO-263 column) | RθJC (bot) | | 0.4 | | ℃/W | TO-263 package | 5 |
| Junction-to-ambient thermal resistance (S-type package) | θJA | | 50 | | °C/W | S-type (TO-263) package, 0.5 in² copper area (note 10) | 7 |
## CAD (KiCad official)
- Symbol: `LM2576HVS-ADJRG`
- Footprint: `Package_TO_SOT_SMD:TO-263-5_TabPin6`
- 3D model: TO-263-5 (KiCad packages3D, STEP)
- 3D model files: `lm2576hvs-adjrg-etched.step` / `lm2576hvs-adjrg-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm2576hvs-adjrg.step` / `lm2576hvs-adjrg.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [HANSCHIP semiconductor datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603358262423138304) (13 pp, sha256 `ce51146fc016d417`, retrieved 2026-10-18, 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](docs/lm2576hvs-adjrg-datasheet.pdf)