component
LP5907QMFX-4.5Q1
Public Made by Adomby adom
TI(德州仪器) Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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Contents
README
markdownLP5907QMFX-4.5Q1
TI(德州仪器) · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5
LP5907QMFX-4.5Q1 from TI(德州仪器), in a SOT-23-5. 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 | IN | power_in | Input voltage supply; connect a 1-µF capacitor at this input, with VIN specified from 2.2 V to 5.5 V. |
| 2 | GND | power_in | Common ground. |
| 3 | EN | input | Enable input: a voltage below VIL turns the regulator off and discharges OUT to GND through an internal 230-Ω pulldown, a voltage above VIH enables the output, and an internal 1-MΩ pulldown holds the regulator off by default; VEN is specified from 0 V to 5.5 V. |
| 4 | N/C | unconnected | No internal electrical connection. |
| 5 | OUT | power_out | Regulated output voltage; connect a minimum 1-µF low-ESR capacitor to this pin, and an internal 230-Ω (typical) pulldown prevents charge remaining on VOUT in shutdown mode (VEN low). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TI(德州仪器) |
| 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 |
|---|---|---|---|---|---|---|---|
| Input voltage (absolute maximum) | VIN | -0.3 | 6 | V | 4 | ||
| Output voltage (absolute maximum) | VOUT | -0.3 | V | Max printed as 'See (3)': VIN + 0.3 V or 6 V, whichever is less | 4 | ||
| Enable input voltage (absolute maximum) | VEN | -0.3 | 6 | V | 4 | ||
| Junction temperature (absolute maximum) | TJMAX | 150 | °C | 4 | |||
| Storage temperature | Tstg | -65 | 150 | °C | 4 | ||
| Human-body model ESD (all pins) | V(ESD) | -2000 | 2000 | V | HBM, per AEC Q100-002 | 4 | |
| Charged-device model ESD (corner pins 1,3,4,5) | V(ESD) | -1000 | 1000 | V | CDM, per AEC Q100-011 | 4 | |
| Charged-device model ESD (other pin 2) | V(ESD) | -1000 | 1000 | V | CDM, per AEC Q100-011 | 4 | |
| Input supply voltage (recommended) | VIN | 2.2 | 5.5 | V | 4 | ||
| Enable input voltage (recommended) | VEN | 0 | 5.5 | V | 4 | ||
| Output current (recommended) | IOUT | 0 | 250 | mA | 4 | ||
| Operating junction temperature (recommended) | TJ-MAX-OP | -40 | 125 | °C | 4 | ||
| Junction-to-ambient thermal resistance | RθJA | 186.9 | °C/W | DBV (SOT-23) 5-pin package | 4 | ||
| Junction-to-case (top) thermal resistance | RθJC(top) | 112.3 | °C/W | DBV (SOT-23) 5-pin package | 4 | ||
| Junction-to-board thermal resistance | RθJB | 52.3 | °C/W | DBV (SOT-23) 5-pin package | 4 | ||
| Junction-to-top characterization parameter | ψJT | 27.5 | °C/W | DBV (SOT-23) 5-pin package | 4 | ||
| Junction-to-board characterization parameter | ψJB | 51.8 | °C/W | DBV (SOT-23) 5-pin package | 4 | ||
| 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 | |
| Short-circuit current limit | ISC | 250 | 500 | mA | TA = 25°C | 5 | |
| Output automatic discharge pulldown resistance | RAD | 230 | Ω | VEN < VIL (output disabled) | 5 | ||
| Turn-on time | tON | 80 | 150 | µs | From VEN > VIH to VOUT = 95% of VOUT(NOM), TA = 25°C | 6 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | copper | ground pin using as wide and short copper traces as are practical. | 18 |
CAD (KiCad official)
- Symbol:
LP5907QMFX-4.5Q1 - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files:
lp5907qmfx-4-5q1-etched.step/lp5907qmfx-4-5q1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lp5907qmfx-4-5q1.step/lp5907qmfx-4-5q1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TI(德州仪器) datasheet (33 pp, sha256
027c095aebe0b6af, retrieved 2026-10-17, 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, primaryclaude-haiku-5-5(text), consensusclaude-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).