LM2575GR-5.0 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; a suitable input bypass capacitor (Cin) must be present to minimize voltage transients and supply the switching currents.
2	Output	output	Emitter of the internal output switch, with a typical saturation voltage Vsat of 1.5 V; keep the PCB area on this pin minimal to reduce coupling to sensitive circuitry.
3	Ground	power_in	Circuit ground pin; see the datasheet's printed circuit board layout guidance.
4	Feedback	input	Senses the regulated output voltage to close the feedback loop; on the adjustable version it is the direct input to the error amplifier and R2/R1 are connected externally to program the output voltage.
5	ON/OFF	input	TTL-compatible shutdown input with a typical threshold of 1.4 V: applying a voltage above this (up to +Vin) shuts the regulator off, while a voltage below 1.4 V or an open pin leaves 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 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
Supply Voltage (operating ratings)	Vin			40	V		3
Operating Junction Temperature Range	TJ	-40		125	℃		3
Output Voltage (5.0V version)	Vout	4.75		5.25	V	8.0V≤Vin≤40V, 0.5A≤ILOAD≤1A, TJ=-40 to +125℃	3
Output Voltage (5.0V version)	Vout	4.8	5	5.2	V	8.0V≤Vin≤40V, 0.5A≤ILOAD≤1A, TJ=25℃	3
Output Voltage (5.0V version)	Vout	4.9	5	5.1	V	Vin = 12V, ILOAD=0.5A, TJ=25℃	3
Maximum Supply Voltage	Vin			45	V		2
Output Voltage to Ground (Steady-State)		-1			V	Steady-state	2
ON/OFF Pin Input Voltage		-0.3			V	-0.3V ≤ V ≤ +Vin (maximum printed as +Vin)	2
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 kΩ	2
Storage Temperature Range	Tstg	-60		150	℃		2
Thermal Resistance, Junction to Case (TO-263 5-Lead)	PθJC		5		℃/W		2
Thermal Resistance, Junction to Ambient (TO-263 5-Lead)	PθJA		65		℃/W		2
ON/OFF Pin Input Current, Regulator ON	IIL		0	5	µA	ON/OFF Pin = 0V (Regulator ON), TJ=25℃	4
ON/OFF Pin Input Current, Regulator OFF	IIH		15	30	µA	ON/OFF Pin = 5.0V (Regulator OFF), 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
Standby Quiescent Current (ON/OFF Pin = 5.0V, off)	ISTBY		80	200	µA	ON/OFF Pin = 5.0V ("off"), TJ=25℃	4
Oscillator Frequency	Fosc	47	52	58	kHz	TJ= 0 to +125℃	4

CAD (KiCad official)

Symbol: LM2575GR-5.0
Footprint: Package_TO_SOT_SMD:TO-263-5_TabPin6
3D model: TO-263-5 (KiCad packages3D, STEP)
3D model files: lm2575gr-5-0-etched.step / lm2575gr-5-0-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm2575gr-5-0.step / lm2575gr-5-0.glb are 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 2026-11-05, tier: lcsc)
Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-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

LM2575GR-5.0

Verified LM2575GR-5.0

Verification log 1 record

3D Model

Symbol & Footprint

Schematic Symbol

PCB Footprint

Datasheet

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