component
MP2315GJ-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.
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
markdownMP2315GJ-Z
Monolithic Power Systems · DC-DC Converters · TSOT-23-8
MP2315GJ-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 | AAM | passive | A resistor from AAM to GND sets the AAM threshold (charged by an internal 6.2µA source), and driving AAM high (=VCC) forces the part into CCM. |
| 2 | IN | power_in | Supply input for the regulator, which operates from 4.5V to 24V and must be decoupled by C1 with a wide, short trace. |
| 3 | SW | output | Switch output node of the internal power MOSFETs, which should be connected with a wide PCB trace and routed away from sensitive analog areas such as FB. |
| 4 | GND | power_in | System ground and reference for the regulated output voltage, to be connected to the ground plane with copper and vias. |
| 5 | BST | passive | Bootstrap pin where a capacitor and a 20Ω resistor between SW and BST form the floating supply for the high-side switch driver. |
| 6 | EN/SYNC | input | Enable input where high enables and low disables the regulator (EN high threshold above 2V, low below 400mV), and it also accepts an external clock from 200kHz to 2MHz. |
| 7 | VCC | power_out | Bias supply output of the internal 5V regulator, to be decoupled with 0.1µF to 0.22µF capacitance no more than 0.22µF. |
| 8 | FB | input | Feedback input where an external divider from VOUT sets the output against the 0.8V reference, and frequency fold-back occurs when FB is below 400mV. |
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 |
|---|---|---|---|---|---|---|---|
| Supply Current (Quiescent) | Iq | 130 | 180 | 240 | uA | VEN = 2V, VFB = 1V, AAM=0.5V | 3 |
| Current Limit | ILIMIT | 4.5 | 5.5 | 6.5 | A | Duty Cycle=40% | 3 |
| Oscillator Frequency | fSW | 420 | 500 | 620 | kHz | VFB=750mV | 3 |
| Feedback Voltage | VFB | 779 | 791 | 803 | mV | TA=25ºC | 3 |
| EN Rising Threshold | VEN_RISING | 1.2 | 1.4 | 1.6 | V | 3 | |
| EN Hysteresis | VEN_HYS | 80 | 150 | 220 | mV | 3 | |
| EN Input Current | IEN | 1.5 | 2 | 2.5 | uA | VEN=2V | 3 |
| EN Input Current | IEN | 0 | 50 | nA | VEN=0 | 3 | |
| EN Turn Off Delay | ENTd-off | 6 | 10 | 14 | us | 3 | |
| VIN Under Voltage Lockout Threshold-Rising | INUVVth | 3.7 | 3.9 | 4.1 | V | 3 | |
| VIN Under Voltage Lockout Threshold-Hysteresis | INUVHYS | 550 | 650 | 750 | mV | 3 | |
| VCC Regulator | VCC | 4.65 | 4.9 | 5.15 | V | 3 | |
| VCC Load Regulation | 0 | 1 | 3 | % | ICC=5mA | 3 | |
| Soft-Start Period | TSS | 0.8 | 1.5 | 2.2 | ms | 10% to 90% | 3 |
| AAM Source Current | IAAM | 5.6 | 6.2 | 6.8 | uA | 3 | |
| Sync Frequency Range | fSYNC | 0.2 | 2 | MHz | 3 | ||
| Maximum Duty Cycle | DMAX | 90 | 95 | % | VFB=750mV | 3 | |
| Feedback Current | IFB | 10 | 50 | nA | VFB=820mV | 3 | |
| VIN | VIN | -0.3 | 28 | V | 2 | ||
| VSW | VSW | -0.3 | 28 | V | Transient: -5V for <10ns (min); 30V for <10ns (max) | 2 | |
| All Other Pins | -0.3 | 6 | V | 2 | |||
| Continuous Power Dissipation | PD | 1.25 | W | TA=+25°C | 2 | ||
| Junction Temperature | TJ | 150 | °C | 2 | |||
| Storage Temperature | Tstg | -65 | 150 | °C | 2 | ||
| Supply Voltage | VIN | 4.5 | 24 | V | 2 | ||
| Output Voltage | VOUT | 0.8 | V | Upper limit printed as VIN*DV (formula) | 2 | ||
| Operating Junction Temperature | TJ | -40 | 125 | °C | 2 |
CAD (KiCad official)
- Symbol:
MP2315GJ-Z - Footprint:
Package_TO_SOT_SMD:TSOT-23-8 - 3D model: TSOT-23-8 (KiCad packages3D, STEP)
- 3D model files:
mp2315gj-z-etched.step/mp2315gj-z-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mp2315gj-z.step/mp2315gj-z.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Monolithic Power Systems datasheet (18 pp, sha256
d6b7273aa78f73d3, retrieved 2026-10-18, 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).