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Contents

README

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LNBH26LSPQR

STMicroelectronics · Power Management - Specialized · QFN-24(4x4)

LNBH26LSPQR from STMicroelectronics, in a QFN-24(4x4). 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 GND power_in Analog circuit ground, to be connected directly to the exposed pad.
2 GND power_in Analog circuit ground, to be connected directly to the exposed pad.
3 LX-A output Drain of the channel A integrated N-channel power MOSFET of the DC-DC step-up converter.
4 P-GND power_in DC-DC converter power ground, to be connected directly to the exposed pad.
5 LX-B output Drain of the channel B integrated N-channel power MOSFET of the DC-DC step-up converter.
6 ADDR input Sets one of the two available I²C bus addresses through the voltage level applied to this pin (see Table 15 of the datasheet for address pin characteristics).
7 SCL input Serial clock input from the I²C bus.
8 SDA bidirectional Bidirectional serial data line to and from the I²C bus.
9 ISEL passive A resistor RSEL connected between ISEL and GND sets the linear regulator current limit, which is the same for channels A and B.
10 NC unconnected Not internally connected; set floating if not used.
11 VUP-B power_in Input of the channel B linear post-regulator, monitored by the channel B step-up controller to keep a minimum dropout across the linear pass transistor.
12 VOUT-B power_out Output of the channel B integrated very low drop linear regulator, whose voltage is selected via the DATA1 register per Table 13.
13 GND power_in Analog circuit ground, to be connected directly to the exposed pad.
14 GND power_in Analog circuit ground, to be connected directly to the exposed pad.
15 GND power_in Analog circuit ground, to be connected directly to the exposed pad.
16 BYP passive Bypass pin for internal pre-regulator filtering, intended only for an external ceramic capacitor; any connection to external current or voltage sources may cause permanent damage.
17 VCC power_in IC DC-DC power supply input, 8 V to 16 V.
18 GND power_in Analog circuit ground, to be connected directly to the exposed pad.
19 GND power_in Analog circuit ground, to be connected directly to the exposed pad.
20 VOUT-A power_out Output of the channel A integrated very low drop linear regulator, whose voltage is selected via the DATA1 register per Table 13.
21 VUP-A power_in Input of the channel A linear post-regulator, monitored by the channel A step-up controller to keep a minimum dropout across the linear pass transistor.
22 DSQIN-A input Logic input for channel A 22 kHz tone control (TTL compatible); it acts as DiSEqC envelope input or external 22 kHz TTL input depending on the EXTM-A bit, and should be pulled high if the tone is activated only by the TEN-A bit.
23 GND power_in Analog circuit ground, to be connected directly to the exposed pad.
24 DSQIN-B input Logic input for channel B 22 kHz tone control (TTL compatible); it acts as DiSEqC envelope input or external 22 kHz TTL input depending on the EXTM-B bit, and should be pulled high if the tone is activated only by the TEN-B bit.
25 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package QFN-24(4x4)
Category Power Management (PMIC)
Pins 25

CAD (KiCad official)

  • Symbol: LNBH26LSPQR
  • Footprint: Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.6x2.6mm
  • 3D model: QFN-24(4x4) (KiCad packages3D, STEP)
  • 3D model files: lnbh26lspqr-etched.step / lnbh26lspqr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lnbh26lspqr.step / lnbh26lspqr.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (35 pp, sha256 d17c66f1c7d4fab7, retrieved 2026-10-11, 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