component
MP1530DQ-LF-Z
Public Made by Adomby adom
MONOLITHIC POWER SYSTEMS INC. Global Sourcing Parts, QFN-16(3X3). 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
markdownMP1530DQ-LF-Z
MONOLITHIC POWER SYSTEMS INC. · Global Sourcing Parts · QFN-16(3X3)
MP1530DQ-LF-Z from MONOLITHIC POWER SYSTEMS INC., in a QFN-16(3X3). 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 | SW | passive | Step-up converter power switch node, the drain of the internal 250mΩ N-channel MOSFET, connected to the inductor and to a rectifier to the main output. |
| 2 | CT | passive | Timing capacitor pin that sets soft-start and power-on sequencing delay periods (6ms for 10nF) via a capacitor to GND. |
| 3 | RDY | output | Regulators-not-ready flag that is pulled low once all FB voltages exceed 80% of their thresholds and goes high about 15μs after a fault. |
| 4 | FB1 | input | Step-up converter feedback input (inverting input of the error amplifier) with a 1.25V regulation threshold set by a resistive divider from the main output. |
| 5 | COMP | passive | Step-up converter compensation node, the error amplifier output, connected to a series RC network. |
| 6 | IN | power_in | Internal power input for the MP1530 (2.7V to 5.5V operating), bypassed to PGND with 10μF or greater. |
| 7 | GND | power_in | Signal ground. |
| 8 | REF | power_out | 1.25V reference voltage output, bypassed to GND with 0.1μF or greater and connected to the low-side resistor of the negative regulator feedback string. |
| 9 | FB2 | input | Negative linear regulator feedback input with resistor string between GL and REF, with a regulation threshold of GND. |
| 10 | FB3 | input | Positive linear regulator feedback input with resistor string between GH and GND, with a 1.25V regulation threshold. |
| 11 | EN | input | On/off control input that is driven high to turn on and low to turn off, and can be tied to IN for automatic startup. |
| 12 | GL | power_out | Negative linear regulator output supplying up to 20mA, bypassed to GND with 1μF or greater low-ESR ceramic capacitor. |
| 13 | IN2 | power_in | Negative linear regulator input driven by an inverting charge pump from SW, able to go as low as -20V; the exposed pad connects to this pin. |
| 14 | GH | power_out | Positive linear regulator output supplying up to 20mA, bypassed to GND with 1μF or greater low-ESR ceramic capacitor. |
| 15 | IN3 | power_in | Positive linear regulator input driven by a doubling, tripling or quadrupling charge pump from SW, up to 38V. |
| 16 | PGND | power_in | Power ground, the source of the internal 250mΩ N-channel MOSFET switch, connected to GND as close to the IC as possible. |
| 17 | Exposed pad | passive | Exposed pad with no internal electrical connections, soldered to the lowest potential (IN2 pin) plane to reduce thermal resistance. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | MONOLITHIC POWER SYSTEMS INC. |
| Package | QFN-16(3X3) |
| Category | Global Sourcing Parts |
| Pins | 17 |
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 Range | VIN | 2.7 | 5.5 | V | VIN = 5V, TA = +25C | 3 | |
| IN Undervoltage Lockout Threshold | VUVLO | 2.25 | 2.65 | V | IN Rising | 3 | |
| IN Shutdown Current | 0.5 | 1 | μA | VEN ≤ 0.3V | 3 | ||
| IN Quiescent Current | 1.3 | 1.6 | mA | VEN > 2V, VFB1 = 1.4V | 3 | ||
| EN Input High Voltage | VEN HIGH | 1.6 | V | EN Rising | 3 | ||
| EN Input Low Voltage | 0.3 | V | 3 | ||||
| EN Input Bias Current | 1 | μA | 3 | ||||
| Switching Frequency | fSW | 1 | 1.4 | MHz | 3 | ||
| Maximum Duty Cycle | DM | 85 | 90 | % | 3 | ||
| FB1, FB3 Regulation Voltage | 1.22 | 1.25 | 1.28 | V | 3 | ||
| FB2 Regulation Voltage | -25 | 0 | 25 | mV | 3 | ||
| FB1, FB3 Input Bias Current | -100 | 100 | nA | VFB1 = VFB3 = 1.25V | 3 | ||
| FB2 Input Bias Current | -100 | 100 | nA | VFB2 = 0V | 3 | ||
| REF Regulation Voltage | 1.22 | 1.25 | 1.28 | V | IREF = 50μA | 3 | |
| REF Load Regulation | 1 | 1.2 | % | 0μA < IREF < 200μA | 3 | ||
| SW On Resistance | 250 | mΩ | VIN = 5V | 3 | |||
| SW On Resistance | 400 | mΩ | VIN = 3V | 3 | |||
| SW Current Limit | ILIM | 2.8 | 3.6 | A | 3 | ||
| SW Leakage Current | 0.5 | 1 | μA | VSW = 22V | 3 | ||
| GL Leakage Current | 1 | μA | VIN2 = -15V, VGL = GND | 3 | |||
| GH Leakage Current | 1 | μA | VIN3 = 25V, VGH = GND | 3 | |||
| IN Supply Voltage | -0.3 | 6 | V | 2 | |||
| SW Voltage | -0.3 | 25 | V | 2 | |||
| IN2, GL Voltage | -25 | 0.3 | V | 2 | |||
| IN3, GH Voltage | -0.3 | 40 | V | 2 | |||
| IN2 to IN3 Voltage | -0.3 | 60 | V | 2 | |||
| All Other Pins | -0.3 | 6 | V | 2 | |||
| Junction Temperature | TJ | 125 | °C | 2 | |||
| Lead Temperature | 260 | °C | 2 | ||||
| Storage Temperature | -65 | 150 | °C | 2 | |||
| Input Voltage | VIN | 2.7 | 5.5 | V | 2 | ||
| Main Output Voltage | VMAIN | 22 | V | VIN to 22V | 2 | ||
| IN2, GL Voltage | -20 | 0 | V | 2 | |||
| IN3, GH Voltage | 0 | 38 | V | 2 | |||
| Maximum Junction Temp. | TJ | 125 | °C | 2 | |||
| Free Air Temperature | TA | -40 | 85 | °C | 2 | ||
| Thermal Resistance Junction-Ambient QFN16 | θJA | 60 | °C/W | QFN16 (3x3mm) | 2 | ||
| Thermal Resistance Junction-Case QFN16 | θJC | 12 | °C/W | QFN16 (3x3mm) | 2 | ||
| Thermal Shutdown | 160 | °C | 3 |
CAD (KiCad official)
- Symbol:
MP1530DQ-LF-Z - Footprint:
Package_DFN_QFN:QFN-16-1EP_3x3mm_P0.5mm_EP1.7x1.7mm - 3D model: QFN-16(3X3) (KiCad packages3D, STEP)
- 3D model files:
mp1530dq-lf-z-etched.step/mp1530dq-lf-z-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mp1530dq-lf-z.step/mp1530dq-lf-z.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MONOLITHIC POWER SYSTEMS INC. datasheet (16 pp, sha256
9dd9b79eb172f648, retrieved 2026-10-31, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-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).