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Contents

README

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LM2595S-ADJRG

HANSCHIP semiconductor · DC-DC Converters · TO-263-5L

LM2595S-ADJRG from HANSCHIP semiconductor, in a TO-263-5L. 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 OUTPUT output Power switch output pin, a switching node that supplies power to the output load; its voltage range is -0.3V to VIN.
2 VIN power_in Supply input pin requiring a 4.5V to 40V DC supply, with a large-value capacitor connected between VIN and GND to suppress supply noise.
3 GND power_in Ground pin, which in layout should be placed on the ground return path at the output point away from the Schottky diode to avoid switching current spike noise.
4 FEEDBACK input Voltage feedback pin that monitors the output voltage through an external resistor divider network, with a threshold voltage of 1.23V.
5 ON_OFF input Enable switch pin where a low level turns the chip on and a high level shuts it down, defaulting to low when floating.
6 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer HANSCHIP semiconductor
Package TO-263-5L
Category Power Management
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 regulated voltage (ADJ) VOUT 1.193 1.23 1.267 V VIN=4.5V40V, ILOAD=0.2A3A 4
Input operating voltage VIN 4.5 40 V 5
Standby current ISTBY 80 200 uA VON_OFF=5V 5
Quiescent operating current IQ 2 10 mA VON_OFF=0V, VFB=VIN 5
Oscillator frequency FOSC 127 150 173 kHz 5
Current limit IL 3.6 4.8 6.9 A VFB=0 5
ON/OFF pin threshold high (control off) VON_OFF 1.4 V 高 (control off) 5
ON/OFF pin threshold low (control on) VON_OFF 0.8 V 低 (control on) 5
ON/OFF pin leakage IH IH 5 15 µA VON_OFF=2.5V(ON) 5
ON/OFF pin leakage IL IL 0.2 5 µA VON_OFF=2.5V(ON) 5
Saturation voltage VCE 1.3 1.5 V VFB=0V, IOUT=3A 5
Maximum duty cycle DMAX 100 % CFB=0V 5
Efficiency (ADJ) η 73 % VIN=12V, VOUT=3V, ILOAD=3A 4
Input supply voltage VIN 40 V 3
Feedback pin voltage VFB -0.3 V -0.3 to VIN 3
ON/OFF pin voltage VON_OFF -0.3 V -0.3 to VIN 3
Output pin voltage VOUT -0.3 V -0.3 to VIN 3
Operating junction temperature TJ -40 125 ℃ 3
Storage temperature TSTG -65 150 ℃ 3
Lead temperature TLEAD 245 ℃ 10S 3
ESD (human body model) ESD 2000 V 3
Input voltage (recommended) VIN 5 40 V 3
Operating junction temperature range (recommended) TJ -40 125 ℃ 3
Thermal resistance junction to ambient RJA 50 ℃/W no heatsink, TO220/TO263 5

CAD (KiCad official)

  • Symbol: LM2595S-ADJRG
  • Footprint: Package_TO_SOT_SMD:TO-263-5_TabPin6
  • 3D model: TO-263-5L (KiCad packages3D, STEP)
  • 3D model files: lm2595s-adjrg-etched.step / lm2595s-adjrg-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm2595s-adjrg.step / lm2595s-adjrg.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: HANSCHIP semiconductor datasheet (12 pp, sha256 a38c73808e083841, retrieved 2026-10-22, 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), 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