LP5018RSMR

@@ -0,0 +1,74 @@+# LP5018RSMR++**Texas Instruments** · LED Drivers · VQFN-32-EP(4x4)++LP5018RSMR from Texas Instruments, in a VQFN-32-EP(4x4). 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 | OUT0 | output | Current sink output 0 for driving an LED cathode. Can be left floating if unused. Sinks up to 25.5 mA typ (35 mA when VCC >= 3.3 V) under 12-bit PWM control. |+| 2 | OUT1 | output | Current sink output 1 for driving an LED cathode. Can be left floating if unused. |+| 3 | OUT2 | output | Current sink output 2 for driving an LED cathode. Can be left floating if unused. |+| 4 | OUT3 | output | Current sink output 3 for driving an LED cathode. Can be left floating if unused. |+| 5 | OUT4 | output | Current sink output 4 for driving an LED cathode. Can be left floating if unused. |+| 6 | OUT5 | output | Current sink output 5 for driving an LED cathode. Can be left floating if unused. |+| 7 | OUT6 | output | Current sink output 6 for driving an LED cathode. Can be left floating if unused. |+| 8 | OUT7 | output | Current sink output 7 for driving an LED cathode. Can be left floating if unused. |+| 9 | OUT8 | output | Current sink output 8 for driving an LED cathode. Can be left floating if unused. |+| 10 | OUT9 | output | Current sink output 9 for driving an LED cathode. Can be left floating if unused. |+| 11 | OUT10 | output | Current sink output 10 for driving an LED cathode. Can be left floating if unused. |+| 12 | OUT11 | output | Current sink output 11 for driving an LED cathode. Can be left floating if unused. |+| 13 | OUT12 | output | Current sink output 12 for driving an LED cathode. Can be left floating if unused. |+| 14 | OUT13 | output | Current sink output 13 for driving an LED cathode. Can be left floating if unused. |+| 15 | OUT14 | output | Current sink output 14 for driving an LED cathode. Can be left floating if unused. |+| 16 | OUT15 | output | Current sink output 15 for driving an LED cathode. Can be left floating if unused. |+| 17 | OUT16 | output | Current sink output 16 for driving an LED cathode. Can be left floating if unused. |+| 18 | OUT17 | output | Current sink output 17 for driving an LED cathode. Can be left floating if unused. |+| 19 | NC | unconnected | No internal connection. On LP5018 this pin is not bonded (LP5024 uses this position for OUT18). |+| 20 | NC | unconnected | No internal connection. On LP5018 this pin is not bonded (LP5024 uses this position for OUT19). |+| 21 | NC | unconnected | No internal connection. On LP5018 this pin is not bonded (LP5024 uses this position for OUT20). |+| 22 | NC | unconnected | No internal connection. On LP5018 this pin is not bonded (LP5024 uses this position for OUT21). |+| 23 | NC | unconnected | No internal connection. On LP5018 this pin is not bonded (LP5024 uses this position for OUT22). |+| 24 | NC | unconnected | No internal connection. On LP5018 this pin is not bonded (LP5024 uses this position for OUT23). |+| 25 | ADDR0 | input | I2C slave-address selection pin (LSB of address select). Must not be left floating; tie to GND or VCC to choose one of up to 4 addresses when combined with ADDR1. |+| 26 | ADDR1 | input | I2C slave-address selection pin (MSB of address select). Must not be left floating; tie to GND or VCC to choose one of up to 4 addresses when combined with ADDR0. |+| 27 | VCC | power_in | Input power supply, 2.7 V to 5.5 V. Bypass locally with a ceramic capacitor (CVCC). |+| 28 | SDA | bidirectional | I2C bus data line, up to 400 kHz Fast-mode. Requires an external pull-up. Compatible with 1.8 V / 3.3 V / 5 V logic. If unused, must be tied to GND or VCC. |+| 29 | SCL | input | I2C bus clock line, up to 400 kHz Fast-mode. Requires an external pull-up. Compatible with 1.8 V / 3.3 V / 5 V logic. If unused, must be tied to GND or VCC. |+| 30 | EN | input | Chip enable input. Drive high to enable the device; drive low to enter shutdown mode (1 uA max IQ). All LEDs turn off within 30 ms of EN going low. |+| 31 | IREF | passive | Output current-reference global-setting pin. Connect an external resistor (RREF) from IREF to GND to set the full-scale sink current for all OUTx channels. |+| 32 | VCAP | passive | Internal LDO output. Must be bypassed to GND with a 1 uF ceramic capacitor placed as close to the device as possible. Do not load externally. |+| 33 | GND | power_in | Exposed thermal pad; also serves as the device ground pin. Must be soldered to the PCB ground plane for both electrical return and thermal dissipation. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | VQFN-32-EP(4x4) |+| Category | LED-drv |+| Pins | 33 |++## Ordering variants++- `LP5018RSMR`+- `LP5018RSMRRSMT`++## CAD (KiCad official)++- Symbol: `LP5018RSMR`+- Footprint: `Package_DFN_QFN:QFN-32-1EP_4x4mm_P0.4mm_EP2.9x2.9mm`+- 3D model: VQFN-32-EP(4x4) (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](docs/lp5018rsmr-datasheet.pdf) (54 pp, sha256 `037cc4ded68a9f65`, retrieved 2026-08-17, 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:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/lp5018rsmr-datasheet.pdf)

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