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LM39302R

Public Made by Adom

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HTC Korea TAEJIN Tech Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-263-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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LM39302R

HTC Korea TAEJIN Tech · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-263-5

LM39302R 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 TTL/CMOS-compatible chip enable: logic low (off) at or below 0.8 V and logic high (on) at or above 2.25 V, with the pin rated up to 20 V absolute maximum.
2 VIN power_in Input supply, specified from 2.25 V to 16 V with an absolute maximum of 20 V, and a 1 µF or greater input capacitor is recommended when the device is far from bulk supply capacitance or the supply is a battery.
3 GND power_in Ground reference pin for the regulator.
4 VOUT power_out Regulated 3 A PNP-based output that requires a low-ESR output capacitor of at least 47 µF for stability, with a 10 mA minimum load current needed for proper regulation.
5 ADJ input Output adjust pin for the LM39302 that sets the output via R1 = R2 × (VOUT / 1.250 − 1) against a 1.25 V reference; resistors up to 1 MΩ may be used because of its high input impedance.
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 (PMIC)
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
Output Voltage tolerance (25°C) VOUT -1 1 % 10mA 6
Output Voltage tolerance (full temperature range) VOUT -2 2 % 10mA ≤ IOUT ≤ 3A, VOUT+1V ≤ VIN ≤8V 6
Line Regulation 0.06 0.5 % IOUT=10mA, VOUT +1V ≤ VIN ≤ 8V 6
Load Regulation 0.2 1 % VIN= VOUT +1V, 10mA ≤ IOUT ≤ 3A 6
Output Voltage Temp. Coefficient ΔVOUT/ΔT 20 100 ppm/°C 6
Dropout Voltage VDO 80 200 mV IOUT=100mA, ΔVOUT = -1% 6
Dropout Voltage VDO 400 500 mV IOUT=3.0A, ΔVOUT = -1% 6
Ground Current IGND 10 20 mA IOUT=750mA, VIN= VOUT+1V 6
Enable Input Current (enabled) IEN 15 30 μA VEN= VIN 6
Enable Input Current (enabled, full temperature range) IEN 75 μA VEN= VIN 6
Enable Input Voltage logic low (off) VEN 0.8 V logic low (off) 6
Enable Input Voltage logic high (on) VEN 2.25 V logic high (on) 6
Enable Input Current (disabled) IEN 2 4 μA VEN=0.8V 6
Shutdown Output Current IOUT(shdn) 10 20 uA Note 7: VEN =0.8V, VIN = 8V, VOUT = 0V 6
Flag Output Leakage Current IFLG (leak) 0.01 1 μA VOH=16V 6
Flag Output Leakage Current (full temperature range) IFLG (leak) 2 μA VOH=16V 6
Flag Output Low Voltage VFLG (do) 220 300 mV VIN=2.25=V, IOL=250μA, (Note8) 6
Flag Output Low Voltage (full temperature range) VFLG (do) 400 mV VIN=2.25=V, IOL=250μA, (Note8) 6
Reference Voltage (LM39302) 1.238 1.25 1.262 V Note 9: VREF ≤ VOUT ≤ (VIN - 1V), 2.25V ≤ VIN ≤ 16V, 10mA ≤ IL ≤ 3A 7
Reference Voltage (LM39302, -40°C ≤ TJ ≤ +125°C) 1.225 1.275 V -40°C ≤ TJ ≤ +125°C; Note 9: VREF ≤ VOUT ≤ (VIN - 1V), 2.25V ≤ VIN ≤ 16V, 10mA ≤ IL ≤ 3A 7
Reference Voltage (LM39302, second range as printed) 1.213 1.277 V 7
Adjust Pin Bias Current 40 80 nA 7
Adjust Pin Bias Current (-40°C ≤ TJ ≤ +125°C) 120 nA -40°C ≤ TJ ≤ +125°C 7
Supply Voltage VIN 2.25 16 V 2
Enable Voltage VEN 2.25 16 V 2
Junction Temperature TJ -40 125 ℃ 2
Supply Voltage VIN -0.3 20 V 1
Enable Voltage VEN 20 V 1
Output Voltage VOUT -0.3 V 1
Lead Temperature (Soldering, 5 sec) TSOL 260 ℃ 5 sec soldering 1
Storage Temperature Range TSTG -65 150 ℃ 1
Thermal Resistance Junction-to-Ambient, TO-263 θJA-TO-263 80 °C/W No heat sink / No air flow / No adjacent heat source / 20 mm2 copper area, TA=25°C 12

CAD (KiCad official)

  • Symbol: LM39302R
  • Footprint: Package_TO_SOT_SMD:TO-263-5_TabPin6
  • 3D model: TO-263-5 (KiCad packages3D, STEP)
  • 3D model files: lm39302r-etched.step / lm39302r-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm39302r.step / lm39302r.glb are the bare package body.

Provenance

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

  • Datasheet: HTC Korea TAEJIN Tech datasheet (12 pp, sha256 1a625dcbfee7f54c, retrieved 2026-10-18, 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