Loads on click. Unloads when scrolled away or the tab is hidden.

Symbol & Footprint

Schematic Symbol

Open full view ↗
Loads on click. Unloads when scrolled away or the tab is hidden.

PCB Footprint

Open full view ↗
Loads on click. Unloads when scrolled away or the tab is hidden.
Loads on click. Unloads when scrolled away or the tab is hidden.
Download PDF
Contents

README

markdown

LP28013HQVF-435

LOWPOWER · Battery Management · TDFN-10-EP(3x3)

LP28013HQVF-435 from LOWPOWER, in a TDFN-10-EP(3x3). 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 IN power_in Input power source. Connect to a wall adapter (recommended 4.5V-5.8V, absolute max 36V). Requires 1uF decoupling capacitor; input OVP triggers at 6.3V and UVLO at 3.3V.
2 CHRG output Open-drain charge status output. Pulled low by internal NMOS during charging (~5mA sink); goes high-impedance when charging completes. Requires external pull-up resistor (typ. 1k to VBAT for LED indicator).
3 PG output Open-drain power-good status output. Low indicates VUVLO < VIN < VOVP (3.3V-6.3V) and input above battery voltage; Hi-Z otherwise. Requires external pull-up resistor.
4 EN input Charge enable input, active low. Logic-low (<0.4V) or floating enables the charger; logic-high (>1.4V) shuts down the IC.
5 NTC input Negative Thermal Coefficient thermistor input for battery temperature sensing (LP28013HQVF variant). Biased with internal 48uA source; designed for 10k NTC (β=3370, e.g. SEMITEC 103AT-2). Implements JEITA thresholds at 0/10/60°C. Tie 10k to GND to disable NTC feature.
6 GND power_in System ground connection.
7 NC unconnected No internal connection. Leave floating or tie to GND.
8 IBF input Charge termination current program. Connect a resistor RIBF from this pin to GND to set the termination (end-of-charge) current threshold: IBF = (RISET × IBAT) / RIBF. A 10nF decoupling capacitor is typically added.
9 ISET input Charge current program. Connect a 1% resistor (RISET) to GND to set the constant-current charge level: IBAT = (VISET × 1800)/RISET, where VISET ≈ 1V. RISET=1.8k → 1A; RISET=3.6k → 500mA.
10 BAT power_out Battery output connection. Regulated float voltage 4.35V (±1%) for the -435 variant. Requires a 10uF decoupling capacitor to GND. Sinks <1uA from battery when input supply is removed.
11 GND power_in Exposed thermal pad on the bottom of the TDFN-10 package. Must be soldered to the PCB ground plane for proper thermal dissipation (θJA=65°C/W) and electrical grounding.

Key specifications

Parameter Value
Manufacturer LOWPOWER
Package TDFN-10-EP(3x3)
Category PMIC
Pins 11

Ordering variants

Same part, different packaging or reel option.

  • LP28013HQVF-435
  • LP28013HTQVF
  • LP28013HTQVF-435

The extractor listed these alongside LP28013HQVF-435, but they are different parts with different electrical characteristics. Do not order them as substitutes.

  • LP28013HQVF-44
  • LP28013HTQVF-44

CAD (KiCad official)

  • Symbol: LP28013HQVF-435
  • Footprint: Package_DFN_QFN:DFN-10-1EP_3x3mm_P0.5mm_EP1.55x2.48mm
  • 3D model: TDFN-10-EP(3x3) (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: LOWPOWER datasheet (10 pp, sha256 0218726a42d6f51e, retrieved 2026-08-17, tier: lcsc)
  • 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