component
LM2575GR-ADJ
Public Made by Adomby adom
HTC Korea TAEJIN Tech 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
markdownLM2575GR-ADJ
HTC Korea TAEJIN Tech · DC-DC Converters · TO-263-5
LM2575GR-ADJ 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 | Positive input supply for the step-down regulator, which needs a suitable input bypass capacitor to minimize voltage transients; the datasheet gives a maximum supply voltage of 40 V. |
| 2 | Output | output | Emitter of the internal output switch with a typical saturation voltage Vsat of 1.5 V, and the PCB area on this pin should be kept to a minimum to limit coupling to sensitive circuitry. |
| 3 | Gnd | power_in | Circuit ground pin, with PCB layout guidance given in the datasheet. |
| 4 | Feedback | input | Senses the regulated output to close the feedback loop; in the adjustable version it is the direct input of the error amplifier and the external R2/R1 divider programs the output voltage over the 1.23 V to 37 V range. |
| 5 | ON/OFF | input | Shutdown input with a typical threshold of 1.4 V, where applying a voltage above this threshold (up to +Vin) turns the regulator off, and leaving it open or below 1.4 V keeps it on. |
| 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 (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 tolerance (over line and load) | VOUT | -4 | 4 | % | Maximum over line and load conditions | 1 | |
| Adjustable output voltage range | VOUT | 1.23 | 37 | V | Adjustable version | 1 | |
| Supply voltage (operating) | Vin | 40 | V | Operating ratings | 3 | ||
| Operating junction temperature range | TJ | -40 | 125 | ℃ | 3 | ||
| Feedback voltage (full temperature range) | Vout | 1.18 | 1.28 | V | TJ=-40℃ to +125℃; 8.0V≤Vin≤40V, 0.5A≤ILOAD≤1A, Vout=5.0V | 3 | |
| Feedback voltage (TJ=25℃) | Vout | 1.193 | 1.23 | 1.267 | V | TJ=25℃; 8.0V≤Vin≤40V, 0.5A≤ILOAD≤1A, Vout=5.0V | 3 |
| Feedback voltage | Vout | 1.217 | 1.23 | 1.243 | V | Vin=12V, ILOAD=0.5A, TJ=25℃ | 3 |
| Maximum junction temperature | TJ | 150 | ℃ | 2 | |||
| Lead temperature (soldering) | 260 | ℃ | Soldering, 10 seconds | 2 | |||
| Minimum ESD rating (human body model) | -2 | kV | C=100 pF, R=1.5㏀ | 2 | |||
| Storage temperature range | Tstg | -60 | 150 | ℃ | 2 | ||
| Maximum supply voltage | Vin | 45 | V | 2 | |||
| ON/OFF pin input voltage | -0.3 | V | -0.3V ≤ V ≤ +Vin | 2 | |||
| Output voltage to ground (steady-state) | -1 | V | Steady-state | 2 | |||
| Thermal resistance, junction to ambient (TO-263 5-lead) | PθJA | 65 | ℃/W | TO-263 5 lead | 2 | ||
| Thermal resistance, junction to case (TO-263 5-lead) | PθJC | 5 | ℃/W | TO-263 5 lead | 2 | ||
| Standby quiescent current | ISTBY | 80 | 200 | ㎂ | ON/OFF Pin = 5.0V ("off"), TJ=25℃ | 4 | |
| Standby quiescent current | ISTBY | 400 | ㎂ | ON/OFF Pin = 5.0V ("off"), TJ=-40 to +125℃ | 4 | ||
| ON/OFF pin logic input level high | VIH | 2.2 | V | TJ=25℃ | 4 | ||
| ON/OFF pin logic input level high | VIH | 2.4 | V | TJ=-40 to +125℃ | 4 | ||
| ON/OFF pin logic input level low | VIL | 1.2 | V | TJ=25℃ | 4 | ||
| ON/OFF pin logic input level low | VIL | 0.8 | V | TJ=-40 to +125℃ | 4 | ||
| ON/OFF pin input current low | IIL | 0 | 5 | ㎂ | ON/OFF Pin = 0V (Regulator ON), TJ=25℃ | 4 | |
| ON/OFF pin input current high | IIH | 15 | 30 | ㎂ | ON/OFF Pin = 5.0V (Regulator OFF), TJ=25℃ | 4 | |
| Oscillator frequency | Fosc | 47 | 52 | 58 | kHz | TJ=0 to +125℃ | 4 |
| Oscillator frequency | Fosc | 42 | 63 | kHz | TJ=-40 to +125℃ | 4 |
CAD (KiCad official)
- Symbol:
LM2575GR-ADJ - Footprint:
Package_TO_SOT_SMD:TO-263-5_TabPin6 - 3D model: TO-263-5 (KiCad packages3D, STEP)
- 3D model files:
lm2575gr-adj-etched.step/lm2575gr-adj-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm2575gr-adj.step/lm2575gr-adj.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HTC Korea TAEJIN Tech datasheet (13 pp, sha256
f909aca9902ad821, retrieved 2026-10-17, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).