component
LP2951CS-L-5-0
Public Made by Adomby 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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lp2951cs-l-5-0.step/lp2951cs-l-5-0.glbare 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, primaryclaude-sonnet-5-5(text+vision), consensusclaude-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).
# 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](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588883808372871168) (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](docs/lp2951cs-l-5-0-datasheet.pdf)