component
LM29151R-5.0
Public Made by Adomby adom
HTC Korea TAEJIN Tech Linear Voltage Regulators (LDO), TO-263-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownLM29151R-5.0
HTC Korea TAEJIN Tech · Linear Voltage Regulators (LDO) · TO-263-5
LM29151R-5.0 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 for ON/OFF control; logic high (on) is 2.4V minimum and logic low (off) is 0.8V maximum, with the pin rated to 26V continuous (VEN max 26V, 30V per the enable description). |
| 2 | VIN | power_in | Input supply; operating input voltage is up to 26V, with transient protection between -20V and +60V (60V limited to under 100 ms at 1% duty cycle). |
| 3 | GND | power_in | Ground reference pin for the regulator; ground pin current is the quiescent current, about 8mA at 750mA load. |
| 4 | VOUT | power_out | Regulated output voltage, 5.0V fixed for this variant (±1% initial tolerance); requires a minimum 10uF output capacitor at full load. |
| 5 | FLG / ADJ | output | Error flag open-collector output on the LM29151 that pulls low when the output drops 5% below nominal and can sink 10mA; it is inoperative during over-temperature shutdown. |
| 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 | 1 | ||
| Enable Input Voltage | VEN | -20 | 60 | V | 1 | ||
| Lead Temperature (Soldering, 5 sec) | TSOL | 260 | ℃ | Soldering, 5 sec | 1 | ||
| Storage Temperature Range | TSTG | -65 | 150 | ℃ | 1 | ||
| Operating Input Voltage | VIN | 26 | V | 2 | |||
| Operating Enable Input Voltage | VEN | 26 | V | 2 | |||
| Junction Temperature | TJ | -40 | 125 | ℃ | 2 | ||
| Thermal resistance heatsink case-to-sink | θCS | 0 | 2 | ℃/W | Heat sink thermal resistance term in thermal design formula | 9 | |
| Output Voltage | VOUT | -1 | 1 | % | IO = 10mA | 6 | |
| Output Voltage | VOUT | -2 | 2 | % | 10mA≤IO≤ IFL, (VOUT+1V)≤VIN≤26V (Note 2) | 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≤IFULLOAD (Note 2,6) | 6 | |
| Output Voltage Temp. Coefficient | ΔVo/ΔT | 20 | 100 | ppm/℃ | Output Voltage (Note 6) | 6 | |
| Dropout Voltage | VDO | 80 | 200 | mV | ΔVOUT = -1%, IO =100mA | 6 | |
| Dropout Voltage | VDO | 220 | mV | ΔVOUT = -1%, IO =750mA | 6 | ||
| Dropout Voltage | VDO | 350 | 600 | mV | ΔVOUT = -1%, IO =1.5A | 6 | |
| Ground Current | IGND | 8 | 22 | mA | IO =750mA, VIN =VOUT+1V | 6 | |
| Ground Current | IGND | 20 | mA | IO =1.5A | 6 | ||
| Ground Pin Current at Dropout | IGNDDO | 2 | mA | VIN =0.5V less than specified VOUT, IOUT =10mA | 6 | ||
| Output Leakage Current | IFLG (leak) | 0.01 | 2 | μA | VOH =26V | 6 | |
| Output Low Voltage | VFLG (do) | 220 | 400 | mV | Device set for 5V. VIN =4.5V, IOL =250μA | 6 | |
| Upper Threshold Voltage | VFLG | 25 | 40 | 60 | mV | Device set for 5V (Note 9) | 6 |
| Lower Threshold Voltage | VFLG | 75 | 95 | 140 | mV | Device set for 5V (Note 9) | 6 |
| Hysteresis | 15 | mV | Device set for 5V (Note 9) | 6 | |||
| Enable Input Voltage Logic High (On) | VEN | 2.4 | V | 7 | |||
| Enable Input Voltage Logic Low (Off) | VEN | 0.8 | V | 7 | |||
| Enable Pin Input Current | IEN | 100 | 750 | μA | VEN =26V | 7 | |
| Enable Pin Input Current | IEN | 2.5 | 5 | μA | VEN =0.8V | 7 | |
| Regulator Output Current in Shutdown | 10 | 500 | μA | (Note 10) | 7 | ||
| Output Noise Voltage (10Hz to 100kHz) | en | 400 | μVRMS | IL = 100mA, CL =10μF | 6 | ||
| Output Noise Voltage (10Hz to 100kHz) | en | 260 | μVRMS | IL = 100mA, CL =33μF | 6 |
CAD (KiCad official)
- Symbol:
LM29151R-5.0 - Footprint:
Package_TO_SOT_SMD:TO-263-5_TabPin6 - 3D model: TO-263-5 (KiCad packages3D, STEP)
- 3D model files:
lm29151r-5-0-etched.step/lm29151r-5-0-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm29151r-5-0.step/lm29151r-5-0.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HTC Korea TAEJIN Tech datasheet (12 pp, sha256
edf268513dcf5ffe, retrieved 2026-10-27, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusoff(skipped (clean text read)), 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).