# LP4061B6F

**LOWPOWER** · Battery Management · SOT-23-6

LP4061B6F from LOWPOWER, in a SOT-23-6. 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 | STAT1 | output | Open-drain charge status output that is pulled low by an internal N-channel MOSFET while the battery is charging and pulled high when the charge cycle is complete. |
| 2 | GND | power_in | Ground reference for the charger. |
| 3 | BAT | power_out | Charge current output that delivers charge current to the battery and regulates the final float voltage to 4.2V, disconnected in shutdown mode. |
| 4 | VCC | power_in | Positive input supply that powers the charger; VCC can range from 4.35V to 6.5V and should be bypassed with at least a 1µF capacitor. |
| 5 | STAT2 | output | Open-drain charge status output that is pulled high by an internal N-channel MOSFET while the battery is charging and pulled low when the charge cycle is complete. |
| 6 | PROG | bidirectional | Charge current program, charge current monitor and shutdown pin, where a 1% resistor to ground sets the charge current and floating the pin shuts the charger down. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | LOWPOWER |
| Package | SOT-23-6 |
| Category | Power Management (PMIC) |
| Pins | 6 |

## 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 Supply Voltage | VCC | 4.35 |  | 6.5 | V |  | 4 |
| Input Supply Current, Charge Mode | ICC |  | 350 | 2000 | μA | RPROG=10k | 4 |
| Input Supply Current, Standby Mode | ICC |  | 200 | 500 | μA | Standby Mode (Charge Terminated) | 4 |
| Input Supply Current, Shutdown Mode | ICC |  | 25 | 50 | μA | Shutdown Mode (RPROG NC, VCC<VBAT, or VCC<VUV) | 4 |
| Regulated Output (Float) Voltage | VFLOAT | 4.158 | 4.2 | 4.242 | V | 0℃≤TA≤85℃, IBAT=40mA | 4 |
| BAT Pin Charge Current, RPROG=10k | IBAT |  | 100 | 120 | mA | RPROG=10k, Current Mode | 4 |
| BAT Pin Charge Current, RPROG=2k | IBAT |  | 500 | 600 | mA | RPROG=2k, Current Mode | 4 |
| BAT Pin Current, Standby Mode | IBAT |  | -2.5 | -6 | μA | Standby Mode, VBAT=4.2V | 4 |
| BAT Pin Current, Shutdown Mode | IBAT | -2 | 1 | 2 | μA | Shutdown Mode (RPROG NC) | 4 |
| BAT Pin Current, Sleep Mode | IBAT | -2 | 1 | 2 | μA | Sleep Mode, VCC=0V | 4 |
| Trickle Charge Threshold Voltage | VTRIKL | 2.8 | 2.9 | 3 | V | RPROG=10k, VBAT Rising | 4 |
| VCC Undervoltage Lockout Threshold | VUV | 3.55 | 3.7 | 3.85 | V | From VCC Low to High | 4 |
| STAT1/2 Pin Output Low Voltage | VSTAT |  | 0.35 | 0.6 | V | ISTAT=5mA | 4 |
| Trickle Charge Current | ITRIKL |  | 50 |  | mA | VBAT<VTRIKL, RPROG=2k | 4 |
| Trickle Charge Hysteresis Voltage | VTRHYS |  | 80 |  | mV | RPROG=10k | 4 |
| VCC Undervoltage Lockout Hysteresis | VUVHYS |  | 200 |  | mV |  | 4 |
| VCC-VBAT Lockout Threshold Voltage, Low to High | VASD |  | 100 |  | mV | VCC from Low to High | 4 |
| VCC-VBAT Lockout Threshold Voltage, High to Low | VASD |  | 30 |  | mV | VCC from High to Low | 4 |
| C/10 Termination Current Threshold | ITERM |  | 10 |  | % IBAT |  | 4 |
| PROG Pin Voltage | VPROG |  | 1 |  | V | RPROG=10k, Current Mode | 4 |
| STAT1/2 Pin Weak Pull-Down Current | ISTAT |  | 5 |  | μA | VSTAT=5V | 4 |
| Recharge Battery Threshold Voltage | ΔVRECHRG |  | 150 |  | mV | VFLOAT-VRECHRG | 4 |
| Junction Temperature in Constant Temperature Mode | TLIM |  | 150 |  | ℃ |  | 4 |
| Power FET ON Resistance (VCC to BAT) | RON |  | 600 |  | mΩ | Between VCC and BAT | 4 |
| Soft-Start Time | tSS |  | 100 |  | μs | IBAT=0 to IBAT=850V/RPROG | 4 |
| Input to GND (VCC) Voltage |  | -0.3 |  | 8 | V |  | 3 |
| BAT to GND Voltage |  | -0.3 |  | 8 | V |  | 3 |
| Other Pin to GND Voltage |  | -0.3 |  | 6 | V |  | 3 |
| Operation Temperature Range |  | -40 |  | 85 | ℃ |  | 3 |
| Junction Temperature |  |  |  | 150 | ℃ |  | 3 |
| Storage Temperature |  | -65 |  | 165 | ℃ |  | 3 |
| Lead Temperature (Soldering) |  |  |  | 260 | ℃ | Soldering, 10sec | 3 |
| ESD Susceptibility HBM (Human Body Model) |  |  |  | 2 | KV |  | 3 |
| ESD Susceptibility MM (Machine Model) |  |  |  | 200 | V |  | 3 |
| Thermal Resistance, Junction to Ambient | θJA |  | 250 |  | ℃/W | Printed as SOT23-5, θJA | 3 |

## CAD (KiCad official)

- Symbol: `LP4061B6F`
- Footprint: `Package_TO_SOT_SMD:SOT-23-6`
- 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files: `lp4061b6f-etched.step` / `lp4061b6f-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lp4061b6f.step` / `lp4061b6f.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [LOWPOWER datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588906256313044992) (8 pp, sha256 `ddc6e94e352c402b`, retrieved 2026-10-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-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).

[Datasheet PDF](docs/lp4061b6f-datasheet.pdf)