component
MP1471AGJ-Z
Public Made by Adomby adom
Monolithic Power Systems DC-DC Converters, TSOT-23-6. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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MP1471AGJ-Z
Monolithic Power Systems · DC-DC Converters · TSOT-23-6
MP1471AGJ-Z from Monolithic Power Systems, in a TSOT-23-6. 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 | GND | power_in | System ground and reference for the regulated output voltage; requires extra care during PCB layout and should be connected to GND with copper traces and vias. |
| 2 | SW | output | Switch output node that must be connected with a wide PCB trace; absolute maximum VSW is -0.3V (-5V for <10ns) to 17V (19V for <10ns). |
| 3 | IN | power_in | Supply voltage input that operates from a 4.5V-to-16V rail and must be decoupled by C1 with a wide PCB trace. |
| 4 | FB | input | Feedback input connected to the tap of an external resistor divider from VOUT to GND (0.8V internal reference), with frequency fold-back when FB falls below 140mV to prevent current-limit runaway. |
| 5 | EN | input | Enable input where HIGH enables the regulator and LOW disables it; connect to VIN through a 100kΩ resistor for automatic start-up, and limit a directly driven source to 6V or less to protect the internal 6.5V Zener clamp. |
| 6 | BST | passive | Bootstrap pin that forms a floating supply for the high-side driver with a capacitor and resistor between SW and BST, using a 1µF BST capacitor; absolute maximum VBST is VSW+6V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Monolithic Power Systems |
| Package | TSOT-23-6 |
| Category | Power Management (PMIC) |
| Pins | 6 |
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 | 0.84 | 1.1 | mA | VEN = 2V, VFB = 1V | 3 | |
| Oscillator Frequency | fSW | 410 | 500 | 590 | kHz | VFB=0.75V | 3 |
| Feedback Voltage | VFB | 788 | 804 | 820 | mV | 3 | |
| EN Rising Threshold | VEN_RISING | 1.4 | 1.5 | 1.6 | V | 3 | |
| EN Falling Threshold | VEN_FALLING | 1.23 | 1.32 | 1.41 | V | 3 | |
| VIN Under-Voltage Lockout Threshold, Rising | INUVVth | 3.9 | 4.15 | 4.4 | V | 3 | |
| Current Limit | ILIMIT | 3.9 | 4.6 | A | Duty=40% | 3 | |
| Maximum Duty Cycle | DMAX | 88 | 92 | % | VFB=700mV | 3 | |
| Supply Current (Shutdown) | IIN | 1 | μA | VEN = 0V | 3 | ||
| HS Switch-On Resistance | HSRDS-ON | 110 | mΩ | VBST-SW=5V | 3 | ||
| LS Switch-On Resistance | LSRDS-ON | 57 | mΩ | Vcc=5V | 3 | ||
| Switch Leakage | SWLKG | 1 | μA | VEN = 0V, VSW = 12V | 3 | ||
| Minimum On Time | τON_MIN | 60 | ns | 3 | |||
| EN Input Current | IEN | 1.8 | μA | VEN=2V | 3 | ||
| EN Input Current | IEN | 0 | μA | VEN=0 | 3 | ||
| VIN Under-Voltage Lockout Threshold Hysteresis | INUVHYS | 340 | mV | 3 | |||
| Soft-Start Period | τSS | 1.5 | ms | Vout from 0% to 100% | 3 | ||
| Operating Junction Temperature | TJ | -40 | 125 | °C | 2 | ||
| Supply Voltage VIN | VIN | -0.3 | 17 | V | 2 | ||
| Switch Voltage VSW (DC) | VSW | -0.3 | 17 | V | DC | 2 | |
| Switch Voltage VSW (transient) | VSW | -5 | 19 | V | <10ns | 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 | ||
| Thermal Resistance Junction-to-Ambient (TSOT-23-6) | θJA | 100 | °C/W | Measured on JESD51-7, 4-layer PCB | 2 | ||
| Thermal Resistance Junction-to-Case (TSOT-23-6) | θJC | 55 | °C/W | Measured on JESD51-7, 4-layer PCB | 2 | ||
| Thermal Shutdown | 150 | °C | Derived from bench characterization, not tested in production | 3 | |||
| Thermal Hysteresis | 20 | °C | Derived from bench characterization, not tested in production | 3 |
CAD (KiCad official)
- Symbol:
MP1471AGJ-Z - Footprint:
Package_TO_SOT_SMD:TSOT-23-6 - 3D model: TSOT-23-6 (KiCad packages3D, STEP)
- 3D model files:
mp1471agj-z-etched.step/mp1471agj-z-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mp1471agj-z.step/mp1471agj-z.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Monolithic Power Systems datasheet (17 pp, sha256
8ab6bfe2dd1f1213, 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).
# MP1471AGJ-Z
**Monolithic Power Systems** · DC-DC Converters · TSOT-23-6
MP1471AGJ-Z from Monolithic Power Systems, in a TSOT-23-6. 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 | GND | power_in | System ground and reference for the regulated output voltage; requires extra care during PCB layout and should be connected to GND with copper traces and vias. |
| 2 | SW | output | Switch output node that must be connected with a wide PCB trace; absolute maximum VSW is -0.3V (-5V for <10ns) to 17V (19V for <10ns). |
| 3 | IN | power_in | Supply voltage input that operates from a 4.5V-to-16V rail and must be decoupled by C1 with a wide PCB trace. |
| 4 | FB | input | Feedback input connected to the tap of an external resistor divider from VOUT to GND (0.8V internal reference), with frequency fold-back when FB falls below 140mV to prevent current-limit runaway. |
| 5 | EN | input | Enable input where HIGH enables the regulator and LOW disables it; connect to VIN through a 100kΩ resistor for automatic start-up, and limit a directly driven source to 6V or less to protect the internal 6.5V Zener clamp. |
| 6 | BST | passive | Bootstrap pin that forms a floating supply for the high-side driver with a capacitor and resistor between SW and BST, using a 1µF BST capacitor; absolute maximum VBST is VSW+6V. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Monolithic Power Systems |
| Package | TSOT-23-6 |
| Category | Power Management (PMIC) |
| Pins | 6 |
## 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 | | 0.84 | 1.1 | mA | VEN = 2V, VFB = 1V | 3 |
| Oscillator Frequency | fSW | 410 | 500 | 590 | kHz | VFB=0.75V | 3 |
| Feedback Voltage | VFB | 788 | 804 | 820 | mV | | 3 |
| EN Rising Threshold | VEN_RISING | 1.4 | 1.5 | 1.6 | V | | 3 |
| EN Falling Threshold | VEN_FALLING | 1.23 | 1.32 | 1.41 | V | | 3 |
| VIN Under-Voltage Lockout Threshold, Rising | INUVVth | 3.9 | 4.15 | 4.4 | V | | 3 |
| Current Limit | ILIMIT | 3.9 | | 4.6 | A | Duty=40% | 3 |
| Maximum Duty Cycle | DMAX | 88 | | 92 | % | VFB=700mV | 3 |
| Supply Current (Shutdown) | IIN | | | 1 | μA | VEN = 0V | 3 |
| HS Switch-On Resistance | HSRDS-ON | | 110 | | mΩ | VBST-SW=5V | 3 |
| LS Switch-On Resistance | LSRDS-ON | | 57 | | mΩ | Vcc=5V | 3 |
| Switch Leakage | SWLKG | | | 1 | μA | VEN = 0V, VSW = 12V | 3 |
| Minimum On Time | τON_MIN | | | 60 | ns | | 3 |
| EN Input Current | IEN | | | 1.8 | μA | VEN=2V | 3 |
| EN Input Current | IEN | | | 0 | μA | VEN=0 | 3 |
| VIN Under-Voltage Lockout Threshold Hysteresis | INUVHYS | | | 340 | mV | | 3 |
| Soft-Start Period | τSS | | | 1.5 | ms | Vout from 0% to 100% | 3 |
| Operating Junction Temperature | TJ | -40 | | 125 | °C | | 2 |
| Supply Voltage VIN | VIN | -0.3 | | 17 | V | | 2 |
| Switch Voltage VSW (DC) | VSW | -0.3 | | 17 | V | DC | 2 |
| Switch Voltage VSW (transient) | VSW | -5 | | 19 | V | <10ns | 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 |
| Thermal Resistance Junction-to-Ambient (TSOT-23-6) | θJA | | 100 | | °C/W | Measured on JESD51-7, 4-layer PCB | 2 |
| Thermal Resistance Junction-to-Case (TSOT-23-6) | θJC | | 55 | | °C/W | Measured on JESD51-7, 4-layer PCB | 2 |
| Thermal Shutdown | | | 150 | | °C | Derived from bench characterization, not tested in production | 3 |
| Thermal Hysteresis | | | 20 | | °C | Derived from bench characterization, not tested in production | 3 |
## CAD (KiCad official)
- Symbol: `MP1471AGJ-Z`
- Footprint: `Package_TO_SOT_SMD:TSOT-23-6`
- 3D model: TSOT-23-6 (KiCad packages3D, STEP)
- 3D model files: `mp1471agj-z-etched.step` / `mp1471agj-z-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mp1471agj-z.step` / `mp1471agj-z.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Monolithic Power Systems datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586177610157711360) (17 pp, sha256 `8ab6bfe2dd1f1213`, retrieved 2026-10-18, tier: lcsc)
- **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/mp1471agj-z-datasheet.pdf)