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HT7805ATZ
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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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ht7805atz.step/ht7805atz.glbare 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, 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).
# 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](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588943956646506497) (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](docs/ht7805atz-datasheet.pdf)