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LP5907QMFX-2.8Q1
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Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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lp5907qmfx-2-8q1: specified limits as data (metadata.characteristics, 24 rows from the datasheet)
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LP5907QMFX-2.8Q1
Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5
LP5907QMFX-2.8Q1 from Texas Instruments, in a SOT-23-5. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | IN | power_in | Input voltage supply, 2.2 V to 5.5 V; requires 1-µF input capacitor. |
| 2 | GND | power_in | Common ground. |
| 3 | EN | input | Logic enable input; voltage ≥ 1.2 V enables regulator, ≤ 0.4 V disables regulator with 230-Ω output discharge; internal 1-MΩ pull-down to ground. |
| 4 | N/C | unconnected | No internal electrical connection. |
| 5 | OUT | power_out | Regulated output voltage, 2.8 V nominal; requires 1-µF to 10-µF ceramic capacitor with ESR 5 to 500 mΩ; 230-Ω pull-down discharges when disabled. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23-5 |
| Category | Power Management (PMIC) |
| Pins | 5 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| VIN Input voltage | VIN | -0.3 | 6 | V | 4 | ||
| VOUT Output voltage | VOUT | -0.3 | V | Max printed as 'See (3)': VIN + 0.3 V or 6 V, whichever is less | 4 | ||
| VEN Enable input voltage | VEN | -0.3 | 6 | V | 4 | ||
| TJMAX Junction temperature | TJMAX | 150 | °C | 4 | |||
| Tstg Storage temperature | Tstg | -65 | 150 | °C | 4 | ||
| VIN Input supply voltage | VIN | 2.2 | 5.5 | V | 4 | ||
| VEN Enable input voltage | VEN | 0 | 5.5 | V | 4 | ||
| IOUT Output current | IOUT | 0 | 250 | mA | 4 | ||
| TJ-MAX-OP Operating junction temperature | TJ-MAX-OP | -40 | 125 | °C | 4 | ||
| VIN Input voltage | VIN | 2.2 | 5.5 | V | TA = 25°C | 5 | |
| Output voltage tolerance | ΔVOUT | -2 | 2 | %VOUT | VIN = (VOUT(NOM) + 1 V) to 5.5 V, IOUT = 1 mA to 250 mA, VOUT ≥ 1.8 V | 5 | |
| Output load current | ILOAD | 0 | 250 | mA | 5 | ||
| Quiescent current | IQ | 12 | 25 | µA | VEN = 1.2 V, IOUT = 0 mA | 5 | |
| Quiescent current | IQ | 250 | 425 | µA | VEN = 1.2 V, IOUT = 250 mA | 5 | |
| Quiescent current (disabled) | IQ | 0.2 | 1 | µA | VEN = 0.3 V (Disabled) | 5 | |
| Turn-on time | tON | 80 | 150 | µs | From VEN > VIH to VOUT = 95% of VOUT(NOM), TA = 25°C | 6 | |
| Output capacitance | COUT | 0.7 | 1 | 10 | µF | 6 | |
| Output/input capacitance ESR | ESR | 5 | 500 | mΩ | Output/input capacitance | 6 | |
| Output automatic discharge pulldown resistance | RAD | 230 | Ω | VEN < VIL (output disabled) | 5 | ||
| Junction-to-ambient thermal resistance | RθJA | 186.9 | °C/W | DBV (SOT-23), 5 pins | 4 | ||
| Junction-to-case (top) thermal resistance | RθJC(top) | 112.3 | °C/W | DBV (SOT-23), 5 pins | 4 | ||
| Junction-to-board thermal resistance | RθJB | 52.3 | °C/W | DBV (SOT-23), 5 pins | 4 | ||
| Junction-to-top characterization parameter | ψJT | 27.5 | °C/W | DBV (SOT-23), 5 pins | 4 | ||
| Junction-to-board characterization parameter | ψJB | 51.8 | °C/W | DBV (SOT-23), 5 pins | 4 |
CAD (KiCad official)
- Symbol:
LP5907QMFX-2.8Q1 - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files:
lp5907qmfx-2-8q1-etched.step/lp5907qmfx-2-8q1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lp5907qmfx-2-8q1.step/lp5907qmfx-2-8q1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (33 pp, sha256
027c095aebe0b6af, retrieved 2026-09-23, 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 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-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).
# LP5907QMFX-2.8Q1
**Texas Instruments** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5
LP5907QMFX-2.8Q1 from Texas Instruments, in a SOT-23-5. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
## Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | IN | power_in | Input voltage supply, 2.2 V to 5.5 V; requires 1-µF input capacitor. |
| 2 | GND | power_in | Common ground. |
| 3 | EN | input | Logic enable input; voltage ≥ 1.2 V enables regulator, ≤ 0.4 V disables regulator with 230-Ω output discharge; internal 1-MΩ pull-down to ground. |
| 4 | N/C | unconnected | No internal electrical connection. |
| 5 | OUT | power_out | Regulated output voltage, 2.8 V nominal; requires 1-µF to 10-µF ceramic capacitor with ESR 5 to 500 mΩ; 230-Ω pull-down discharges when disabled. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23-5 |
| Category | Power Management (PMIC) |
| Pins | 5 |
## Electrical characteristics
Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| VIN Input voltage | VIN | -0.3 | | 6 | V | | 4 |
| VOUT Output voltage | VOUT | -0.3 | | | V | Max printed as 'See (3)': VIN + 0.3 V or 6 V, whichever is less | 4 |
| VEN Enable input voltage | VEN | -0.3 | | 6 | V | | 4 |
| TJMAX Junction temperature | TJMAX | | | 150 | °C | | 4 |
| Tstg Storage temperature | Tstg | -65 | | 150 | °C | | 4 |
| VIN Input supply voltage | VIN | 2.2 | | 5.5 | V | | 4 |
| VEN Enable input voltage | VEN | 0 | | 5.5 | V | | 4 |
| IOUT Output current | IOUT | 0 | | 250 | mA | | 4 |
| TJ-MAX-OP Operating junction temperature | TJ-MAX-OP | -40 | | 125 | °C | | 4 |
| VIN Input voltage | VIN | 2.2 | | 5.5 | V | TA = 25°C | 5 |
| Output voltage tolerance | ΔVOUT | -2 | | 2 | %VOUT | VIN = (VOUT(NOM) + 1 V) to 5.5 V, IOUT = 1 mA to 250 mA, VOUT ≥ 1.8 V | 5 |
| Output load current | ILOAD | 0 | | 250 | mA | | 5 |
| Quiescent current | IQ | | 12 | 25 | µA | VEN = 1.2 V, IOUT = 0 mA | 5 |
| Quiescent current | IQ | | 250 | 425 | µA | VEN = 1.2 V, IOUT = 250 mA | 5 |
| Quiescent current (disabled) | IQ | | 0.2 | 1 | µA | VEN = 0.3 V (Disabled) | 5 |
| Turn-on time | tON | | 80 | 150 | µs | From VEN > VIH to VOUT = 95% of VOUT(NOM), TA = 25°C | 6 |
| Output capacitance | COUT | 0.7 | 1 | 10 | µF | | 6 |
| Output/input capacitance ESR | ESR | 5 | | 500 | mΩ | Output/input capacitance | 6 |
| Output automatic discharge pulldown resistance | RAD | | 230 | | Ω | VEN < VIL (output disabled) | 5 |
| Junction-to-ambient thermal resistance | RθJA | | 186.9 | | °C/W | DBV (SOT-23), 5 pins | 4 |
| Junction-to-case (top) thermal resistance | RθJC(top) | | 112.3 | | °C/W | DBV (SOT-23), 5 pins | 4 |
| Junction-to-board thermal resistance | RθJB | | 52.3 | | °C/W | DBV (SOT-23), 5 pins | 4 |
| Junction-to-top characterization parameter | ψJT | | 27.5 | | °C/W | DBV (SOT-23), 5 pins | 4 |
| Junction-to-board characterization parameter | ψJB | | 51.8 | | °C/W | DBV (SOT-23), 5 pins | 4 |
## CAD (KiCad official)
- Symbol: `LP5907QMFX-2.8Q1`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `lp5907qmfx-2-8q1-etched.step` / `lp5907qmfx-2-8q1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lp5907qmfx-2-8q1.step` / `lp5907qmfx-2-8q1.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/ds/symlink/lp5907-q1.pdf) (33 pp, sha256 `027c095aebe0b6af`, retrieved 2026-09-23, 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 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-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/lp5907qmfx-2-8q1-datasheet.pdf)