component
MP2235SGJ-Z
Public Made by Adomby adom
Monolithic Power Systems DC-DC Converters, TSOT-23-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
| Name | Last updated |
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| docs | 9d ago |
| viewers | 9d ago |
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| mp2235sgj-z-etched.step | 9d ago |
| mp2235sgj-z-hero.glb | 9d ago |
| mp2235sgj-z-hero.overlay.json | 9d ago |
| mp2235sgj-z.glb | 9d ago |
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| mp2235sgj-z.lbr | 9d ago |
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MP2235SGJ-Z
Monolithic Power Systems · DC-DC Converters · TSOT-23-8
MP2235SGJ-Z from Monolithic Power Systems, in a TSOT-23-8. 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 | SS | passive | Soft-start pin: connect an external capacitor to program the soft-start time, which the internal 11 µA source charges up to the 0.804 V reference. |
| 2 | IN | power_in | Supply voltage input for the internal MOSFET and regulator, operating from +4.5 V to +16 V, and it requires a low-ESR, low-inductance decoupling capacitor placed very close to the pin. |
| 3 | SW | output | Switch output connected to the inductor and bootstrap capacitor, driven up to VIN during the PWM on-time and pulled negative by the inductor current during off-time. |
| 4 | GND | power_in | System ground and reference ground for the regulated output voltage, to be connected to the PCB ground plane with copper and vias. |
| 5 | BST | passive | Bootstrap pin that requires a capacitor connected between SW and BST to form a floating supply for the high-side switch driver. |
| 6 | EN/SYNC | input | Enable input: drive high to enable the regulator, and apply an external 300 kHz to 2 MHz clock to change the switching frequency; an internal 6.5 V Zener clamps the pin, and direct drive requires the source to be limited to 6 V or less. |
| 7 | VCC | power_out | Internal 5 V LDO output that powers the driver and control circuits, to be decoupled with a 0.1 µF to 0.22 µF capacitor, and capacitors of 0.22 µF or larger must not be used. |
| 8 | FB | input | Feedback input connected to the tap of the external output resistor divider to set VOUT, with frequency foldback when FB is below 400 mV. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Monolithic Power Systems |
| Package | TSOT-23-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
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 voltage (absolute maximum) | VIN | -0.3 | 17 | V | 3 | ||
| Switch output voltage (absolute maximum) | VSW | -0.3 | 17 | V | 3 | ||
| Switch output transient undershoot | VSW | -5 | V | for <10 ns | 3 | ||
| Switch output transient overshoot | VSW | 19 | V | for <10 ns | 3 | ||
| All other pins (absolute maximum) | -0.3 | 6 | V | 3 | |||
| Continuous power dissipation | PD | 1.25 | W | TA = +25°C | 3 | ||
| Junction temperature | TJ | 150 | °C | 3 | |||
| Storage temperature | TSTG | -65 | 150 | °C | 3 | ||
| Operating junction temperature (recommended) | TJ | -40 | 125 | °C | 3 | ||
| Oscillator frequency | fSW | 620 | 800 | 900 | kHz | VFB = 0.75 V, TJ = +25°C | 4 |
| Oscillator frequency over temperature | fSW | 550 | 800 | 900 | kHz | VFB = 0.75 V, TJ = -40°C to +125°C | 4 |
| Sync frequency range | fSYNC | 0.3 | 2 | MHz | 4 | ||
| Feedback voltage | VFB | 788 | 804 | 820 | mV | TJ = 25°C | 4 |
| Feedback voltage over temperature | VFB | 784 | 804 | 824 | mV | TJ = -40°C to +125°C | 4 |
| EN rising threshold | VEN_RISING | 1 | 1.4 | 1.8 | V | 4 | |
| VIN under-voltage lockout threshold, rising | INUVVth | 3.5 | 3.9 | 4.3 | V | 4 | |
| VCC regulator | VCC | 4.6 | 5 | 5.4 | V | 4 | |
| Soft-start current | ISS | 8 | 11 | 14 | μA | 4 | |
| Thermal resistance junction-to-ambient | θJA | 100 | °C/W | JESD51-7, 4-layer PCB | 3 | ||
| Thermal resistance junction-to-case | θJC | 55 | °C/W | 3 |
CAD (KiCad official)
- Symbol:
MP2235SGJ-Z - Footprint:
Package_TO_SOT_SMD:TSOT-23-8 - 3D model: TSOT-23-8 (KiCad packages3D, STEP)
- 3D model files:
mp2235sgj-z-etched.step/mp2235sgj-z-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mp2235sgj-z.step/mp2235sgj-z.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Monolithic Power Systems datasheet (19 pp, sha256
7c64da2fb3c268a3, retrieved 2026-10-28, 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).