component
LP78070FSPF
Public Made by Adomby adom
LOWPOWER Motor Driver ICs, SOP-8-EP. 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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README
markdownLP78070FSPF
LOWPOWER · Motor Driver ICs · SOP-8-EP
LP78070FSPF from LOWPOWER, in a SOP-8-EP. 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 | VIN | power_in | Charging input; input voltage 4.4V to 5.5V (typ 5V), abs max -0.3V to 7V, UVLO threshold 3.6V. |
| 2 | V1 | bidirectional | LED and key control terminal 1 (LED1 gear indicator, SW1 reset key; LED drive current 5mA). |
| 3 | V2 | bidirectional | LED and key control terminal 2 (LED2 gear indicator, SW2 gear-set key; LED drive current 5mA). |
| 4 | V3 | output | LED display interface (LED3 gear indicator; LED drive current 5mA). |
| 5 | DR | output | Fan negative-terminal control (DR NMOS, RDS(ON) 250mOhm typ, abs max -0.3V to 12V to GND). |
| 6 | FB | input | Boost output voltage feedback; VFB 0.6V/0.9V/1.2V for gears 1/2/3, abs max -0.3V to 7V. |
| 7 | LX | passive | Boost NMOS drain (switch node, RDS(ON) 100mOhm, switching frequency 900kHz, abs max -0.3V to 12V as SW). |
| 8 | BAT | bidirectional | Lithium battery positive terminal for charge output (4.2V float) and boost input, abs max -0.3V to 7V. |
| 9 | GND | power_in | Ground and thermal exposed pad (PAD). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | LOWPOWER |
| Package | SOP-8-EP |
| Category | Power Management ICs |
| Pins | 9 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Charge input voltage | VIN | 4.4 | 5 | 5.5 | V | TA=25°C, VIN=5V | 5 |
| Float voltage | VFLOAT | 4.158 | 4.2 | 4.242 | V | TA=25°C, VIN=5V | 5 |
| Input undervoltage threshold | VUVLO | 3.6 | V | 5 | |||
| Input UVLO hysteresis | VUVLO_HYS | 200 | mV | 5 | |||
| Adaptive voltage | VREG | 4.4 | V | IIN_LIM=500mA | 5 | ||
| Battery leakage current, VIN=5V boost off | IBAT | 9 | uA | VIN=5V，升压关断 | 5 | ||
| Battery leakage current, VIN=NC boost off | IBAT | 0.2 | uA | VIN=NC，升压关断 | 5 | ||
| Battery current, boost gear 3 no load | IBAT | 7 | uA | VIN=NC，升压3挡，空载 | 5 | ||
| Trickle charge threshold | VTRIKL | 1.9 | V | 5 | |||
| Recharge threshold | ΔVRECHRG | 180 | mV | 5 | |||
| Trickle charge current gear 1/2 | ITRIKL | 180 | mA | 1挡、2挡 | 5 | ||
| Trickle charge current gear 3 | ITRIKL | 300 | mA | 3挡 | 5 | ||
| Constant charge current gear 1/2 | ICHRG | 800 | mA | 1挡、2挡 | 5 | ||
| Constant charge current gear 3 | ICHRG | 1200 | mA | 3挡 | 5 | ||
| Battery low-voltage indication | 3.05 | V | 5 | ||||
| Battery end-of-discharge voltage | 2.9 | V | 5 | ||||
| FB reference voltage gear 1 | VFB | 0.6 | V | 1挡 | 5 | ||
| FB reference voltage gear 2 | VFB | 0.9 | V | 2挡 | 5 | ||
| FB reference voltage gear 3 | VFB | 1.2 | V | 3挡 | 5 | ||
| Boost switching frequency | fOSC | 900 | KHz | 5 | |||
| Boost power NMOS on-resistance | RDS(ON) | 100 | mΩ | 5 | |||
| DR NMOS on-resistance | RDS(ON)_DR | 250 | mΩ | 5 | |||
| LED drive current | 5 | mA | 5 | ||||
| Minimum valid key press time | 25 | ms | 5 | ||||
| VIN, BAT to GND | -0.3 | 7 | V | 4 | |||
| SW to GND | -0.3 | 12 | V | 4 | |||
| FB to GND | -0.3 | 7 | V | 4 | |||
| DR to GND | -0.3 | 12 | V | 4 | |||
| Maximum junction temperature | 125 | °C | 4 | ||||
| Maximum soldering temperature | 260 | °C | lead, 10 s | 4 | |||
| Storage temperature | -55 | 150 | °C | 4 | |||
| ESD HBM | 2 | kV | 人体模型 HBM | 4 | |||
| ESD MM | 200 | V | 机械模型 MM | 4 |
CAD (KiCad official)
- Symbol:
LP78070FSPF - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm - 3D model: SOP-8-EP (KiCad packages3D, STEP)
- 3D model files:
lp78070fspf-etched.step/lp78070fspf-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lp78070fspf.step/lp78070fspf.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: LOWPOWER datasheet (8 pp, sha256
78c6b3060b63191b, retrieved 2026-10-22, 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-sonnet-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).