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LM25088QMHX-1
Public Made by Adomby adom
Texas Instruments DC-DC Converters, HTSSOP-16-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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LM25088QMHX-1
Texas Instruments · DC-DC Converters · HTSSOP-16-EP
LM25088QMHX-1 from Texas Instruments, in a HTSSOP-16-EP. 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 | VIN | power_in | IC supply voltage with an operating range of 4.5 V to 42 V. |
| 2 | EN | input | Enable input: below 0.4 V puts the regulator in a low-power state, 0.4 V to 1.2 V selects standby mode, and above 1.2 V makes the controller operational; if left open, an internal 5-µA pullup enables the controller. |
| 3 | SS | input | Soft-start pin charged by an internal 11-µA source to set the start-up rate, usable for voltage tracking with an applied voltage below 1.2 V, and held low in standby, VCC UV and thermal shutdown states. |
| 4 | RAMP | passive | An external capacitor between RAMP and GND sets the emulated current-mode ramp slope, with a recommended range of 100 pF to 2000 pF. |
| 5 | RT/SYNC | input | A single resistor to GND programs the oscillator over a recommended 50 kHz to 1 MHz range, and an external sync signal higher in frequency can be coupled through a small capacitor, with the RT resistor still required. |
| 6 | GND | power_in | Ground return for the controller. |
| 7 | COMP | output | Output of the internal error amplifier; the loop compensation network must be connected between COMP and FB. |
| 8 | FB | input | Feedback input to the inverting input of the internal error amplifier, with a regulation threshold of 1.205 V. |
| 9 | OUT | input | Output voltage connection, to be connected directly to the regulated output voltage. |
| 10 | DITH | passive | LM25088-1 only: a capacitor to GND is charged and discharged by 27-µA sources to modulate the oscillator between -5% and +5% of nominal, and grounding this pin disables dithering. |
| 11 | CSG | passive | Current sense ground, serving as the low-side reference for the current sense resistor. |
| 12 | CS | input | Current measurement connection for the re-circulating diode, sensing diode current at the end of the buck switch off time to provide the DC offset for the emulated current ramp. |
| 13 | SW | passive | Switching node, connected to the source terminal of the external MOSFET switch. |
| 14 | HG | output | High-side gate drive output, connected to the gate terminal of the external MOSFET switch. |
| 15 | BOOT | power_in | Bootstrap input: an external capacitor between BOOT and SW provides bias to the MOSFET gate driver, charged from VCC through an internal diode during the buck switch off time; BOOT to SW is limited to 16 V absolute maximum. |
| 16 | VCC | power_out | Output of the bias regulator that tracks VIN up to 7.8 V typical, requires a 0.1 µF to 10 µF ceramic decoupling capacitor, and can be driven externally at 8.3 V to 13 V to reduce internal power dissipation. |
| 17 | EP | passive | Exposed pad, electrically isolated, which must be soldered to the ground plane to reduce thermal resistance. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | HTSSOP-16-EP |
| Category | Power Management (PMIC) |
| Pins | 17 |
CAD (KiCad official)
- Symbol:
LM25088QMHX-1 - Footprint:
Package_SO:TSSOP-16-1EP_4.4x5mm_P0.65mm - 3D model: HTSSOP-16-EP (KiCad packages3D, STEP)
- 3D model files:
lm25088qmhx-1-etched.step/lm25088qmhx-1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm25088qmhx-1.step/lm25088qmhx-1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (41 pp, sha256
c5dd8895914f3400, retrieved 2026-10-08, 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).
# LM25088QMHX-1
**Texas Instruments** · DC-DC Converters · HTSSOP-16-EP
LM25088QMHX-1 from Texas Instruments, in a HTSSOP-16-EP. 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 | VIN | power_in | IC supply voltage with an operating range of 4.5 V to 42 V. |
| 2 | EN | input | Enable input: below 0.4 V puts the regulator in a low-power state, 0.4 V to 1.2 V selects standby mode, and above 1.2 V makes the controller operational; if left open, an internal 5-µA pullup enables the controller. |
| 3 | SS | input | Soft-start pin charged by an internal 11-µA source to set the start-up rate, usable for voltage tracking with an applied voltage below 1.2 V, and held low in standby, VCC UV and thermal shutdown states. |
| 4 | RAMP | passive | An external capacitor between RAMP and GND sets the emulated current-mode ramp slope, with a recommended range of 100 pF to 2000 pF. |
| 5 | RT/SYNC | input | A single resistor to GND programs the oscillator over a recommended 50 kHz to 1 MHz range, and an external sync signal higher in frequency can be coupled through a small capacitor, with the RT resistor still required. |
| 6 | GND | power_in | Ground return for the controller. |
| 7 | COMP | output | Output of the internal error amplifier; the loop compensation network must be connected between COMP and FB. |
| 8 | FB | input | Feedback input to the inverting input of the internal error amplifier, with a regulation threshold of 1.205 V. |
| 9 | OUT | input | Output voltage connection, to be connected directly to the regulated output voltage. |
| 10 | DITH | passive | LM25088-1 only: a capacitor to GND is charged and discharged by 27-µA sources to modulate the oscillator between -5% and +5% of nominal, and grounding this pin disables dithering. |
| 11 | CSG | passive | Current sense ground, serving as the low-side reference for the current sense resistor. |
| 12 | CS | input | Current measurement connection for the re-circulating diode, sensing diode current at the end of the buck switch off time to provide the DC offset for the emulated current ramp. |
| 13 | SW | passive | Switching node, connected to the source terminal of the external MOSFET switch. |
| 14 | HG | output | High-side gate drive output, connected to the gate terminal of the external MOSFET switch. |
| 15 | BOOT | power_in | Bootstrap input: an external capacitor between BOOT and SW provides bias to the MOSFET gate driver, charged from VCC through an internal diode during the buck switch off time; BOOT to SW is limited to 16 V absolute maximum. |
| 16 | VCC | power_out | Output of the bias regulator that tracks VIN up to 7.8 V typical, requires a 0.1 µF to 10 µF ceramic decoupling capacitor, and can be driven externally at 8.3 V to 13 V to reduce internal power dissipation. |
| 17 | EP | passive | Exposed pad, electrically isolated, which must be soldered to the ground plane to reduce thermal resistance. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | HTSSOP-16-EP |
| Category | Power Management (PMIC) |
| Pins | 17 |
## CAD (KiCad official)
- Symbol: `LM25088QMHX-1`
- Footprint: `Package_SO:TSSOP-16-1EP_4.4x5mm_P0.65mm`
- 3D model: HTSSOP-16-EP (KiCad packages3D, STEP)
- 3D model files: `lm25088qmhx-1-etched.step` / `lm25088qmhx-1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm25088qmhx-1.step` / `lm25088qmhx-1.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/lm25088-q1) (41 pp, sha256 `c5dd8895914f3400`, retrieved 2026-10-08, 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`, 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/lm25088qmhx-1-datasheet.pdf)