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LKP2074S-ADJ

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LKWIC Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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LKP2074S-ADJ

LKWIC · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOP-8

LKP2074S-ADJ from LKWIC, in a SOP-8. 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 OUT power_out Regulated output voltage; connect a capacitor of at least 10µF to GND, placed as close to the OUT pin as possible.
2 SENSE/ADJ input On the adjustable version (LKP2074S-ADJ) this is the adjustable-output pin, with a 1.21V reference set by the R1/R2 divider; on fixed versions it is the output sense pin.
3 GND power_in Ground.
4 NC unconnected Not connected.
5 SHDN input Active-low shutdown: output turns off when pulled low, drivable by a pull-up resistor or 5V logic; must be tied to IN if unused, and the device does not operate if left floating.
6 GND power_in Ground.
7 GND power_in Ground.
8 IN power_in Input voltage (2.5V to 20V operating); connect a 1µF to 10µF capacitor to GND, placed as close to the IN pin as possible.

Key specifications

Parameter Value
Manufacturer LKWIC
Package SOP-8
Category Power Management (PMIC)
Pins 8

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 (IN pin) VIN 2.5 20 V 6
Operating temperature TA -40 125 ℃ 6
IN pin voltage VIN 20 V 5
OUT pin voltage VOUT 20 V 5
Input-output differential voltage VDR 20 V 5
SENSE pin voltage VSENSE 20 V 5
ADJ pin voltage VADJ 7 V 5
SHDN# pin voltage VSHDN 20 V 5
Storage temperature TSTG -65 150 ℃ 5
Junction temperature Tj 150 ℃ 5
Lead soldering temperature (5s) Th 240 250 ℃ 5 s 5
Output voltage (SENSE/ADJ pin), LKP2074S-ADJ 1.174 1.21 1.246 V 2.5V < VIN < 20V, 1mA < ILOAD < 1.5A 6
Minimum input voltage 2.1 2.5 V ILOAD = 1.5A 6
Line regulation, LKP2074S-ADJ 1.5 5 mV ΔVIN = 2.21V～20V, ILOAD = 1mA 6
Load regulation, LKP2074S-ADJ 2 15 mV VIN = 2.5V, ΔILOAD = 1mA～1.5A 6
Dropout voltage 0.02 0.1 V VIN = VOUT(NOMINAL), ILOAD = 1mA 6
Dropout voltage 0.1 0.22 V VIN = VOUT(NOMINAL), ILOAD = 100mA 6
Dropout voltage 0.19 0.35 V VIN = VOUT(NOMINAL), ILOAD = 500mA 6
Dropout voltage 0.34 0.55 V VIN = VOUT(NOMINAL), ILOAD = 1.5A 6
GND pin current 1 1.5 mA VIN = VOUT(NOMINAL)+1V, ILOAD = 0mA 6
GND pin current 1.1 1.6 mA VIN = VOUT(NOMINAL)+1V, ILOAD = 1mA 6
GND pin current 3.8 5.5 mA VIN = VOUT(NOMINAL)+1V, ILOAD = 100mA 6
GND pin current 15 25 mA VIN = VOUT(NOMINAL)+1V, ILOAD = 500mA 6
GND pin current 80 120 mA VIN = VOUT(NOMINAL)+1V, ILOAD = 1.5A 6
ADJ pin bias current 3 10 μA 6
Shutdown threshold voltage 0.9 2 V VOUT = Off to On 6
Shutdown threshold voltage 0.25 0.75 V VOUT = On to Off 6
SHDN# pin current 0.01 1 μA VSHDN# = 0V 6
SHDN# pin current 3 30 μA VSHDN# = 20V 6
Shutdown current 0.01 1 μA VIN = 6V, VSHDN# = 0V, TA=25℃ 6
Ripple rejection 55 63 dB VIN, VOUT = 1.5V (Avg), VRIPPLE = 0.5VP-P, fRIPPLE = 120Hz, ILOAD = 0.75A, TA=25℃ 6
Current limit 2 A VIN = 7V, VOUT = 0V 7
Current limit 1.6 A VIN = VOUT(NOMINAL) + 1V, ΔVOUT = -0.1V 7
Reverse input leakage current 1 mA VIN = -20V, VOUT = 0V 7
Reverse output current, LKP2074S-ADJ 300 600 μA VOUT = 1.21V, VIN < 1.21V, TA=25℃ 7
Output voltage noise 40 μVRMS COUT = 10μF, ILOAD = 1.5A, BW = 10Hz～100kHz 6
Thermal resistance, junction-to-ambient (8 pins) RθJA 70 °C/W 8 pins, junction to ambient; actual value depends on board layout 6

CAD (KiCad official)

  • Symbol: LKP2074S-ADJ
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: lkp2074s-adj-etched.step / lkp2074s-adj-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lkp2074s-adj.step / lkp2074s-adj.glb are the bare package body.

Provenance

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

  • Datasheet: LKWIC datasheet (14 pp, sha256 f1198aa6f1a8f2cc, retrieved 2026-10-18, 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+vision), consensus claude-opus-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