component
LNBH26SPQR
Public Made by Adomby adom
STMicroelectronics Power Management - Specialized, QFN-24-EP(4x4). 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
markdownLNBH26SPQR
STMicroelectronics · Power Management - Specialized · QFN-24-EP(4x4)
LNBH26SPQR from STMicroelectronics, in a QFN-24-EP(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 | DSQOUT-B | output | Open-drain DiSEqC output of the tone detector for DiSEqC 2.0 data decoding, low when a tone is detected on DETIN-B, and set to ground if not used. |
| 2 | FLT | output | Open-drain fault output, set low on overload (OLF), overtemperature (OTF) or power-not-good (PNG), to be pulled up with 5 V max. |
| 3 | LX-A | passive | Drain of the integrated channel A 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 | passive | Drain of the integrated channel B N-channel power MOSFET of the DC-DC step-up converter. |
| 6 | ADDR | input | Address pin whose voltage level selects one of two I²C bus addresses (see Table 15 of the datasheet, not reproduced in this extract). |
| 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 between ISEL and GND sets the linear regulator current limit, the same limit applying to both channels A and B. |
| 10 | N.C. | unconnected | Not internally connected; leave 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 minimum dropout across the pass transistor. |
| 12 | VOUT-B | power_out | Channel B LNB output from the very low drop linear regulator, with voltage selected through the data1 register (Table 13). |
| 13 | DETIN-B | input | Channel B 22 kHz tone decoder input that must be AC-coupled to the DiSEqC 2.0 bus, and set to ground if not used. |
| 14 | BPSW-B | output | Open-drain pin driving an external transistor that bypasses the channel B output RL filter during DiSEqC transmit mode, and set to ground if not used. |
| 15 | GND | power_in | Analog circuit ground, to be connected directly to the exposed pad. |
| 16 | BYP | passive | Connects only to an external ceramic bypass capacitor for internal pre-regulator filtering; any external current or voltage source may cause permanent damage. |
| 17 | VCC | power_in | Supply input of 8 to 16 V for the IC DC-DC power supply. |
| 18 | BPSW-A | output | Open-drain pin driving an external transistor that bypasses the channel A output RL filter during DiSEqC transmit mode, and set to ground if not used. |
| 19 | DETIN-A | input | Channel A 22 kHz tone decoder input that must be AC-coupled to the DiSEqC 2.0 bus, and set to ground if not used. |
| 20 | VOUT-A | power_out | Channel A LNB output from the very low drop linear regulator, with voltage selected through the data1 register (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 minimum dropout across the pass transistor. |
| 22 | DSQIN-A | input | TTL-compatible input used as DiSEqC envelope input (EXTM-A=0, TEN-A=1) or external 22 kHz TTL input (EXTM-A=TEN-A=1), and pulled high if the tone is controlled by TEN-A only. |
| 23 | DSQOUT-A | output | Open-drain DiSEqC output of the channel A tone detector, low when a tone is detected on DETIN-A, and set to ground if not used. |
| 24 | DSQIN-B | input | TTL-compatible input used as DiSEqC envelope input (EXTM-B=0, TEN-B=1) or external 22 kHz TTL input, and pulled high if the tone is controlled by TEN-B only. |
| 25 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | QFN-24-EP(4x4) |
| Category | Power Management (PMIC) |
| Pins | 25 |
CAD (KiCad official)
- Symbol:
LNBH26SPQR - Footprint:
Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.7x2.7mm - 3D model: QFN-24-EP(4x4) (KiCad packages3D, STEP)
- 3D model files:
lnbh26spqr-etched.step/lnbh26spqr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lnbh26spqr.step/lnbh26spqr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (35 pp, sha256
bb75db3817409bed, retrieved 2026-10-08, tier: lcsc) - 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).