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LM2576S-ADJRG
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.
Generated by kicad-footprint-generator · KiCad file format 20260206
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LM2576S-ADJRG
HANSCHIP semiconductor · DC-DC Converters · TO-263-5
LM2576S-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 40 V for LM2576 and 55 V for LM2576HV. |
| 2 | Output | output | Switch output of the regulator; output voltage to ground (steady state) is limited to -1 V. |
| 3 | Ground | power_in | Ground pin; the package tab is also ground. |
| 4 | Feedback | input | Feedback input for the adjustable version with a 1.23 V reference, with bias current typically 50 nA. |
| 5 | ON/OFF | input | Active-low shutdown input, TTL compatible, with 50 uA typical standby current and input range -0.3 V to VIN. |
| 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 (adjustable, VIN=12V, Iload=0.5A) | VOUT | 1.217 | 1.23 | 1.243 | V | VIN = 12V, I load = 0.5A, VOUT = 5V | 6 |
| Output voltage (LM2576, 25°C) | VOUT | 1.193 | 1.23 | 1.267 | V | 8V ≤ VIN ≤ 40V, 0.5A ≤ I load ≤ 3A, VOUT = 5V; TJ=25°C | 6 |
| Output voltage (LM2576, full operating junction temperature range) | VOUT | 1.18 | 1.23 | 1.28 | V | 8V ≤ VIN ≤ 40V, 0.5A ≤ I load ≤ 3A, VOUT = 5V; full operating junction temperature range | 6 |
| Feedback bias current (25°C) | Ib | 50 | 100 | nA | VOUT = 5V (adjustable models only); TJ=25°C | 7 | |
| Feedback bias current (full temperature range) | Ib | 50 | 500 | nA | VOUT = 5V (adjustable models only); full operating junction temperature range | 7 | |
| Oscillator frequency (25°C) | fO | 47 | 52 | 58 | kHz | note 11; TJ=25°C | 7 |
| Oscillator frequency (full temperature range) | fO | 42 | 52 | 63 | kHz | note 11; full operating junction temperature range | 7 |
| Saturation voltage (25°C) | VSAT | 1.4 | 1.8 | V | IOUT = 3A (note 4); TJ=25°C | 7 | |
| Saturation voltage (full temperature range) | VSAT | 1.4 | 2 | V | IOUT = 3A (note 4); full operating junction temperature range | 7 | |
| Duty cycle, maximum (on) | DC | 93 | 98 | % | note 5: feedback pin disconnected from output and tied to 0V | 7 | |
| Current limit (25°C) | ICL | 4.2 | 5.8 | 6.9 | A | notes 4, 11; TJ=25°C | 7 |
| Current limit (full temperature range) | ICL | 3.5 | 5.8 | 7.5 | A | notes 4, 11; full operating junction temperature range | 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 (25°C) | VIH | 2.2 | 1.4 | V | VOUT = 0V; TJ=25°C | 7 | |
| ON/OFF control logic input level high (full temperature range) | VIH | 2.4 | 1.4 | V | VOUT = 0V; full operating junction temperature range | 7 | |
| ON/OFF control logic input level low (25°C) | VIL | 1.2 | 1 | V | VOUT = nominal input voltage; TJ=25°C | 7 | |
| ON/OFF control logic input level low (full temperature 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 | |
| Absolute maximum supply voltage LM2576 | VIN | 40 | V | LM2576 (non-HV) | 4 | ||
| ON/OFF pin input voltage | VON_OFF | -0.3 | V | -0.3 ≤ V ≤ +VIN (upper limit printed as +VIN) | 4 | ||
| Output voltage to ground (steady state) | -1 | V | steady state, to ground | 4 | |||
| Storage temperature range | TSTG | -65 | 150 | °C | 4 | ||
| Maximum junction temperature | TJ | 150 | °C | 4 | |||
| ESD rating | ESD | 2 | kV | C = 100 pF, R = 1.5 kΩ | 4 | ||
| Lead temperature (soldering) | TLEAD | 245 | °C | 10 s soldering | 4 | ||
| Supply voltage LM2576 (recommended) | VIN | 40 | V | LM2576 (non-HV) | 5 | ||
| Operating junction temperature range | TA | -40 | 125 | °C | 5 | ||
| Thermal resistance, junction to ambient (TO-263) | RθJA | 42.6 | °C/W | TO-263 package | 5 | ||
| Thermal resistance, junction to case (top) (TO-263) | RθJC(top) | 43.3 | °C/W | TO-263 package | 5 | ||
| Thermal resistance, junction to board (TO-263) | RθJB | 22.4 | °C/W | TO-263 package | 5 | ||
| Junction-to-top characterization parameter (TO-263) | ψJT | 10.7 | °C/W | TO-263 package | 5 | ||
| Junction-to-board characterization parameter (TO-263) | ψJB | 21.3 | °C/W | TO-263 package | 5 | ||
| Thermal resistance, junction to case (bottom) (TO-263) | RθJC(bot) | 0.4 | °C/W | TO-263 package | 5 | ||
| Thermal resistance, junction to ambient (S package) | θJA | 50 | °C/W | S package (TO-263); 0.5 sq in copper area (note 10) | 7 |
CAD (KiCad official)
- Symbol:
LM2576S-ADJRG - Footprint:
Package_TO_SOT_SMD:TO-263-5_TabPin6 - 3D model: TO-263-5 (KiCad packages3D, STEP)
- 3D model files:
lm2576s-adjrg-etched.step/lm2576s-adjrg-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm2576s-adjrg.step/lm2576s-adjrg.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HANSCHIP semiconductor datasheet (13 pp, sha256
49a38e15b1d76c58, 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).