component

HT7805ATZ

Public Made by Adom

by adom

HTCSEMI Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-220. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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HT7805ATZ

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

HT7805ATZ from HTCSEMI, in a TO-220. 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 Input power_in Unregulated input to the regulator; the HT7805 operating input range is 7 to 20 V and the absolute maximum input voltage for this device (All Others) is 35 V.
2 GND power_in Ground terminal of the regulator, labelled GND in the datasheet pinout with no further electrical limit stated.
3 Output power_out Regulated 5.0 V output (4.8 V to 5.2 V at TJ = 25 °C), with output current rated to 1.5 A.

Key specifications

Parameter Value
Manufacturer HTCSEMI
Package TO-220
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 4.8 5 5.2 V TJ = 25 C 2
Line Regulation VO 3 100 mV VI = 7V to 25V, TJ = 25 C 2
Line Regulation VO 1 50 mV VI = 8V to 12V, TJ = 25 C 2
Load Regulation VO 15 100 mV IO = 5mA to 1.5A, 25 C 2
Load Regulation VO 5 50 mV IO = 250mA to 750mA, 25 C 2
Ripple Rejection RR 62 78 dB VI = 8V to 18V, f=120Hz 2
Quiescent Current IQ 4.2 8 mA TJ = 25 C 2
Input Voltage (All others) 35 V All others (HT7824, HT7827 are 40 V) 2
Operating Free-Air, Case, Virtual Junction Temperature 0 150 C 2
Storage Temperature Range -65 150 C 2
Lead Temperature 260 C 1.6 mm from case for sec. 2
Device Operating Voltage (HT7805) 7 20 V 1
Operating Temperature 0 125 C 1
Output Noise Voltage VN 40 V F = 10Hz to 100Hz, TJ = 25 C 2
Dropout Voltage VD 2 V TJ = 25 C 2
Quiescent Current Change (line) IQ 1.3 mA VI = 7V to 25V, TJ = 25 C 2
Quiescent Current Change (load) IQ 0.5 mA IO = 5mA to 1A, TJ = 25 C 2

CAD (KiCad official)

  • Symbol: HT7805ATZ
  • Footprint: Package_TO_SOT_THT:TO-220-3_Vertical
  • 3D model: TO-220 (KiCad packages3D, STEP)
  • 3D model files: ht7805atz-etched.step / ht7805atz-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ht7805atz.step / ht7805atz.glb are the bare package body.

Provenance

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

  • Datasheet: HTCSEMI datasheet (6 pp, sha256 8551888ea1a3c6fc, retrieved 2026-10-20, 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