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Ray Publish 0.1.0 2f94334 16d ago

LM7906T

HGSEMI · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-220-3

LM7906T from HGSEMI, in a TO-220-3. 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 GND power_in Common ground reference pin of the LM7906 negative regulator, listed as GND in the TO220-3 pin configuration.
2 Input power_in Negative unregulated input, with absolute maximum input voltage of -35 V at TJ=25°C and an LM7906 operating input range of -8.0 V to -21 V.
3 Output power_out Regulated negative output with output voltage between -5.77 V and -6.23 V over 5.0 mA to 1.0 A load, rated for output current in excess of 1.0 A.

Key specifications

Parameter Value
Manufacturer HGSEMI
Package TO-220-3
Category Power Management (PMIC)
Pins 3

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 VO -5.77 -6.23 V -8.0V ≤ VIN ≤ -21V; 5.0mA ≤ IO ≤ 1.0 A 2
Line Regulation ∆UV 57 mV IO = 100mA, -8.0V ≤ VIN ≤ -25V 2
Line Regulation ∆UV 28.5 mV IO = 100mA, -9.0V ≤ VIN ≤ -13V 2
Line Regulation ∆UV 114 mV IO = 500mA, -8.0V ≤ VIN ≤ -25V 2
Load Regulation ∆UI 114 mV 5.0mA ≤ IO ≤ 1.5 A 2
Load Regulation ∆UI 57 mV 250mA ≤ IO ≤ 750mA 2
Quiescent Current IB 7.8 mA 2
Quiescent Current Change ∆IB 1.25 mA -8.0V ≤ VIN ≤ -25V 2
Quiescent Current Change ∆IB 0.48 mA 5.0mA ≤ IO ≤ 1.5 A 2
Maximum input voltage -35 V TJ=25°C 2
Maximum operating junction temperature 125 ℃ 2

CAD (KiCad official)

  • Symbol: LM7906T
  • Footprint: Package_TO_SOT_THT:TO-220-3_Vertical
  • 3D model: TO-220-3 (KiCad packages3D, STEP)
  • 3D model files: lm7906t-etched.step / lm7906t-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm7906t.step / lm7906t.glb are the bare package body.

Provenance

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

  • Datasheet: HGSEMI datasheet (7 pp, sha256 cd0f86e4d6f2597d, retrieved 2026-10-19, 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