# LM29302R

**HTC Korea TAEJIN Tech** · Linear Voltage Regulators (LDO) · TO-263-5

LM29302R from HTC Korea TAEJIN Tech, in a TO-263-5. 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 | EN | input | Chip enable input with TTL/CMOS-compatible thresholds (logic low off ≤0.8V, logic high on ≥2.4V), may be tied to VIN if ON/OFF control is not needed, operating rating up to 26V. |
| 2 | VIN | power_in | Input supply pin, operating up to 26V continuous (60V max for <100msec at ≤1% duty cycle, -20V reverse), with a 0.1µF capacitor to GND recommended for high-impedance sources. |
| 3 | GND | power_in | Ground pin. |
| 4 | OUT | power_out | Regulated output voltage pin delivering up to 3.0A, requiring a minimum 10µF output capacitor for stability at full load. |
| 5 | ADJ | input | Output adjust pin connected to the R1/R2 feedback divider to set VOUT = 1.240 x [1 + (R1/R2)], with a 1.24V typical reference voltage. |
| 6 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | HTC Korea TAEJIN Tech |
| Package | TO-263-5 |
| Category | Power Management ICs |
| 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 Supply Voltage | VIN | -20 |  | 60 | V | Note 1: 60V limited duration (<100msec), duty cycle ≤1%; max continuous 26V | 1 |
| Enable Input Voltage | VEN | -20 |  | 60 | V | Note 1 | 1 |
| Lead Temperature (Soldering, 5 sec) | TSOL |  |  | 260 | °C | 5 sec | 1 |
| Storage Temperature Range | TSTG | -65 |  | 150 | °C |  | 1 |
| Operating Input Voltage | VIN |  |  | 26 | V |  | 2 |
| Operating Enable Input Voltage | VEN |  |  | 26 | V |  | 2 |
| Operating Junction Temperature | TJ | -40 |  | 125 | °C |  | 2 |
| Output Voltage | VOUT | -1 |  | 1 | % | IO = 10mA | 6 |
| Output Voltage | VOUT | -2 |  | 2 | % | 10mA≤IO≤IFULLLOAD (Note 2), (VOUT+1V)≤VIN≤26V | 6 |
| Line Regulation | ΔVLINE |  | 0.06 | 0.5 | % | IO = 10mA, (VOUT+1V)≤VIN≤26V | 6 |
| Load Regulation | ΔVLOAD |  | 0.2 | 1 | % | VIN=VOUT+5V, 10mA≤IOUT≤IFULLLOAD (Note 2,6) | 6 |
| Output Voltage Temp. Coefficient | ΔVo/ΔT |  | 20 | 100 | ppm/°C | Output Voltage (Note 6) | 6 |
| Dropout Voltage | VDROP |  | 80 | 175 | mV | ΔVOUT = -1%, IO =100mA (Note 3) | 6 |
| Dropout Voltage | VDROP |  | 250 | 600 | mV | ΔVOUT = -1%, IO =1.5A (Note 3) | 6 |
| Dropout Voltage | VDROP |  | 370 |  | mV | ΔVOUT = -1%, IO =3.0A (Note 3) | 6 |
| Ground Current | IGND |  | 10 |  | mA | IO =1.5A, VIN =VOUT+1V | 6 |
| Ground Current | IGND |  | 37 | 35 | mA | IO =3.0A, VIN =VOUT+1V | 6 |
| Ground Pin Current at Dropout | IGND_DO |  | 1.7 |  | mA | VIN =0.5V less than specified VOUT, IOUT =10mA | 6 |
| Current Limit | ILIMIT |  | 4.5 | 5 | A | VOUT = 0V (Note 4) | 6 |
| Output Noise Voltage | en |  | 400 |  | μVRMS | 10Hz to 100kHz, IL = 100mA, CL =10μF | 6 |
| Output Noise Voltage | en |  | 260 |  | μVRMS | 10Hz to 100kHz, IL = 100mA, CL =33μF | 6 |
| Reference Voltage | VREF | 1.228 | 1.24 | 1.252 | V |  | 7 |
| Reference Voltage (across temperature) | VREF | 1.215 |  | 1.265 | V |  | 7 |
| Reference Voltage | VREF | 1.203 |  | 1.277 | V | Note 8: VREF ≤ VOUT ≤ (VIN -1V), 2.3V ≤ VIN ≤ 26V, 10mA < IL < IFULLLOAD | 7 |
| Adjust Pin Bias Current | IADJ |  | 40 | 80 | nA |  | 7 |
| Adjust Pin Bias Current (across temperature) | IADJ |  |  | 120 | nA |  | 7 |
| Reference Voltage Temp. Coefficient | ΔVREF/ΔT |  | 20 |  | ppm/°C | Note 7 | 7 |
| Adjust Pin Bias Current Temp. Coefficient | ΔIADJ/ΔT |  | 0.1 |  | nA/°C |  | 7 |
| Enable Input Voltage Logic Low (Off) | VEN |  |  | 0.8 | V |  | 7 |
| Enable Input Voltage Logic High (On) | VEN | 2.4 |  |  | V |  | 7 |
| Enable Pin Input Current | IEN |  | 100 | 600 | μA | VEN =26V | 7 |
| Enable Pin Input Current (across temperature) | IEN |  |  | 750 | μA | VEN =26V | 7 |
| Enable Pin Input Current | IEN |  |  | 2 | μA | VEN =0.8V | 7 |
| Enable Pin Input Current (across temperature) | IEN |  |  | 4 | μA | VEN =0.8V | 7 |
| Regulator Output Current in Shutdown | IOUT_SD |  | 10 | 500 | μA | Note 10: VEN ≤ 0.8V and VIN ≤ 26V, VOUT=0 | 7 |

## CAD (KiCad official)

- Symbol: `LM29302R`
- Footprint: `Package_TO_SOT_SMD:TO-263-5_TabPin6`
- 3D model: TO-263-5 (KiCad packages3D, STEP)
- 3D model files: `lm29302r-etched.step` / `lm29302r-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm29302r.step` / `lm29302r.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [HTC Korea TAEJIN Tech datasheet](docs/lm29302r-datasheet.pdf) (12 pp, sha256 `e1c24e80a6f5f0c5`, retrieved 2026-10-22, tier: lcsc)
- **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/lm29302r-datasheet.pdf)