# HT63032ARTZ

**HTCSEMI** · DC-DC Converters · SOT-23-6

HT63032ARTZ from HTCSEMI, in a SOT-23-6. 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 | SW | passive | Internal power switch node, connected externally to the power inductor and Schottky diode. |
| 2 | GND | power_in | Ground pin. |
| 3 | FB | input | Feedback input connected to the external sense resistor; output current IOUT = VFB/Rsence (A), with VFB typically 0.2V. |
| 4 | EN | input | Enable and dimming input accepting DC or PWM square wave; rising threshold above 0.5V enables, falling below 0.4V shuts down, with an internal 800K pulldown. |
| 5 | OVP | input | Overvoltage protection input connected to a resistor divider from the output to ground; trip point typically 1.2V and recovery 0.86V. |
| 6 | VIN | power_in | Driver supply input with 3.0V to 60V recommended range; bypass to GND with a 4.7uF or larger ceramic capacitor placed close to the pin. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | HTCSEMI |
| Package | SOT-23-6 |
| Category | Power Supply Chip |
| 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 |
|---|---|---|---|---|---|---|---|
| Input voltage range | VIN | 3 |  | 60 | V |  | 3 |
| Input undervoltage lockout rising | VUVLO |  | 3 |  | V | Rising | 3 |
| Input undervoltage lockout falling | VUVLO |  | 2.6 |  | V | Falling | 3 |
| Quiescent current | IQ |  | 180 |  | uA | No load, No switch, VIN=12V | 3 |
| Shutdown current | IS |  | 10 |  | uA | EN=0, VIN=12V | 3 |
| Boost low-side switch on-resistance | RDS(ON) | 330 | 350 | 410 | mΩ | TJ=25℃ | 3 |
| FB feedback voltage | VFB | 0.195 | 0.2 | 0.205 | V |  | 3 |
| Switching frequency | FSW | 1.05 | 1.2 | 1.35 | MHZ | PWM Operation | 3 |
| Maximum duty cycle | DMAX | 85 | 90 |  | % |  | 3 |
| SW current limit | ILIMIT.SW(Peak) | 1.5 | 1.7 | 2.1 | A |  | 3 |
| FB bias current | IFB.BIAS |  | 50 |  | nA |  | 3 |
| SW leakage current | ISW.LKG |  | 4 |  | uA |  | 3 |
| Analog dimming lower limit voltage | VEN_min | 0.6 | 0.62 | 0.65 | V | 3V≤VIN≤60V | 3 |
| OVP voltage rising | VOVP | 1 | 1.2 |  | V | Rising | 3 |
| OVP voltage falling | VOVP |  | 0.86 |  | V | Falling | 3 |
| Over-temperature protection | TOTP-R |  | 150 |  | ℃ | TJ Rising | 3 |
| Over-temperature protection release | TOTP-F |  | 120 |  | ℃ | TJ Falling | 3 |
| Operating junction temperature | TJ | -40 |  | 125 | ℃ |  | 1 |

## CAD (KiCad official)

- Symbol: `HT63032ARTZ`
- Footprint: `Package_TO_SOT_SMD:SOT-23-6`
- 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files: `ht63032artz-etched.step` / `ht63032artz-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ht63032artz.step` / `ht63032artz.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [HTCSEMI datasheet](docs/ht63032artz-datasheet.pdf) (18 pp, sha256 `eb166b23930d0962`, retrieved 2026-10-23, 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](docs/ht63032artz-datasheet.pdf)