component
LP7801SPF
Public Made by Adomby adom
LOWPOWER Battery Management, ESOP-8. 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
markdownLP7801SPF
LOWPOWER · Battery Management · ESOP-8
LP7801SPF from LOWPOWER, in a ESOP-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 | ISET | passive | Charge-current setting pin: the constant-charge current IBAT is set by resistor RISET per a formula that uses VISET = 1V, and the datasheet example values are ISET=17.5K for 100 mA and ISET=3.4K for 515 mA. |
| 2 | VIN | power_in | Charger input: operating input voltage is 4.5V to 5.8V (5V typ.), overvoltage protection trips at 6.3V (typ.) with 400mV hysteresis, and undervoltage lockout is 3.3V; absolute maximum is -0.3V to 36V. |
| 3 | BAT | bidirectional | Battery connection serving as charger output and boost discharge input; the float voltage is 4.2V (4.158V to 4.242V), and the pin must withstand the absolute-maximum range of -0.3V to 6V for other pins. |
| 4 | SW | output | Switching node of the synchronous boost converter, rated for an absolute maximum of -0.3V to 10V. |
| 5 | VOUT | power_out | Boost output that supplies 5.1V at up to 500mA load current, with an absolute maximum rating of -0.3V to 8V. |
| 6 | EN | input | Boost enable control: the output turns on above 0.9V (EN_ON) and turns off below 0.8V (EN_OFF), and pulling EN low fully shuts down the output; the pin draws 0.01uA at EN=5V. |
| 7 | CHRG | output | Charge-status indicator output that sinks about 10mA when charging (strong pull-down) and goes high-impedance when charge is complete or when VIN is below 4.5V or above the OVP threshold. |
| 8 | NTC | input | Battery temperature sense input fed by an internal 47uA current source through an NTC to GND; charge current is 100% between VNTC-L (0.165V) and VNTC-M (0.75V), 50% between VNTC-M and VNTC-H (1.15V), and charging is disabled outside the VNTC-L to VNTC-H window. |
| 9 | GND | power_in | Ground, printed on the datasheet as the exposed thermal pad (PAD) of the ESOP-8 package. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | LOWPOWER |
| Package | ESOP-8 |
| Category | Power Management (PMIC) |
| 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 |
|---|---|---|---|---|---|---|---|
| VIN input voltage (absolute maximum) | VIN | -0.3 | 36 | V | 3 | ||
| SW pin voltage (absolute maximum) | SW | -0.3 | 10 | V | 3 | ||
| VOUT pin voltage (absolute maximum) | VOUT | -0.3 | 8 | V | 3 | ||
| Other pins voltage (absolute maximum) | -0.3 | 6 | V | 3 | |||
| Maximum soldering temperature | 260 | °C | 10 s | 3 | |||
| Storage temperature | -55 | 150 | °C | 3 | |||
| Maximum junction temperature | 150 | °C | 3 | ||||
| Maximum package power dissipation | 2 | W | 3 | ||||
| ESD human body model (HBM) | 2 | KV | 3 | ||||
| ESD machine model (MM) | 200 | V | 3 | ||||
| Operating ambient temperature range | -20 | 80 | °C | 3 | |||
| Input operating voltage | VIN | 4.5 | 5.8 | V | 4 | ||
| Battery full charge (float) voltage | VFLOAT | 4.158 | 4.2 | 4.242 | V | 4 | |
| Thermal resistance (温升) | 50 | °C/W | 3 |
CAD (KiCad official)
- Symbol:
LP7801SPF - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm - 3D model: ESOP-8 (KiCad packages3D, STEP)
- 3D model files:
lp7801spf-etched.step/lp7801spf-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lp7801spf.step/lp7801spf.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: LOWPOWER datasheet (7 pp, sha256
0e9c93f189a76b3f, retrieved 2026-10-19, 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).