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LP2951CS-L-5-0

Public Made by Adom

by adom

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

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LP2951CS-L-5-0

MaxLinear · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOIC-8

LP2951CS-L-5-0 from MaxLinear, in a SOIC-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 VOUT power_out Regulated output (5V at up to 100mA max, 1% version), requires a 1µF output capacitor for stability.
2 SENSE input Output sense input that connects to the output to close the internal 5V feedback divider (180kΩ/60kΩ) for the fixed 5V output.
3 SHUTDOWN input Logic-controlled shutdown input from CMOS or TTL; low (below about 0.7V typ, 0.8V max) turns the regulator ON and high (above 2.0V) turns it OFF.
4 GND power_in Ground.
5 ERROR output Active-low open-collector error flag that warns of low output voltage (dropout), typically 5% below nominal, with up to 30V pull-up allowed (VOH = 30V).
6 5V TAP passive Tap of the internal resistor divider, tied to the FEEDBACK pin for fixed 5V operation.
7 FEEDBACK input Error amplifier feedback input referenced to 1.23V; tied to the 5V Tap for fixed 5V or to an external R1/R2 divider for 1.24 to 29V adjustable output.
8 VIN power_in Unregulated DC input supply, with operating input voltage up to 30V.

Key specifications

Parameter Value
Manufacturer MaxLinear
Package SOIC-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
Output Low Voltage 150 250 mV VIN= 4.5V, IOL= 400 μA 4
Error Comparator Output Leakage Current 0.01 1 μA VOH = 30V 4
Upper Threshold Voltage 40 60 mV Note 7 4
Lower Threshold Voltage 75 95 mV Note 7 4
Shutdown Input Logic Voltage Low (Regulator ON) 0.7 V 4
Shutdown Input Logic Voltage High (Regulator OFF) 2 1.3 V 4
Shutdown Pin Input Current 30 50 μA VS= 2.4V 4
Shutdown Pin Input Current 675 800 μA VS= 30V 4
Regulator Output Current in Shutdown 3 10 μA Note 8 4
Input Voltage (VIN) VIN 2.3 30 V Note 6: 2.3 ≤ VIN ≤ 30V 4
Load Current (IL) lower limit IL 100 μA Note 6: 100μA ≤ IL ≤ 100mA 4
Load Current (IL) upper limit IL 100 mA Note 6: 100μA ≤ IL ≤ 100mA 4

CAD (KiCad official)

  • Symbol: LP2951CS-L-5-0
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: lp2951cs-l-5-0-etched.step / lp2951cs-l-5-0-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lp2951cs-l-5-0.step / lp2951cs-l-5-0.glb are the bare package body.

Provenance

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

  • Datasheet: MaxLinear datasheet (18 pp, sha256 b28236382b7fb43e, retrieved 2026-10-19, tier: lcsc)
  • 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