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Ray Publish 0.1.0 321a007 17d ago

MP1470BGJ-Z

Monolithic Power Systems · DC-DC Converters · TSOT-23-6

MP1470BGJ-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 ground of the regulated output voltage; it requires extra care during PCB layout and should be connected to GND with copper traces and vias.
2 SW output Switch output; connect using a wide PCB trace.
3 IN power_in Supply voltage for the MP1470B, which operates from a 4.7V to 16V input rail; it requires C1 to decouple the input rail and should be connected using a wide PCB trace.
4 FB input Feedback connected to the tap of an external resistor divider from the output to GND to set the output voltage; the frequency foldback comparator lowers the oscillator frequency when FB drops below 140mV to prevent current-limit runaway during a short-circuit fault.
5 EN input Enable pin: driving EN high enables the MP1470B, and for automatic start-up EN should be connected to VIN through a 100kΩ resistor.
6 BST passive Bootstrap pin: connect a capacitor and a resistor between SW and BST to form a floating supply across the high-side switch driver, using a 1µF BST capacitor.

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
Input voltage (VIN) absolute maximum VIN -0.3 17 V 3
Switch voltage (VSW) absolute maximum VSW -0.3 17 V Printed as -5V for <10ns (min) and 19V for <10ns (max) as transient limits 3
All other pins absolute maximum -0.3 6 V All pins other than VIN and VSW 3
Continuous power dissipation PD 1.25 W TA = +25°C 3
Junction temperature TJ 150 °C 3
Lead temperature 260 °C 3
Storage temperature -65 150 °C 3
Supply voltage (recommended) VIN 4.7 16 V 3
Output voltage (recommended) VOUT 0.8 V Maximum printed as VIN*DMAX (not a numeric value) 3
Operating junction temperature (recommended) TJ -40 125 °C 3
Junction-to-ambient thermal resistance, TSOT23-6 θJA 100 °C/W JESD51-7, 4-layer PCB 3
Junction-to-case thermal resistance, TSOT23-6 θJC 55 °C/W JESD51-7, 4-layer PCB 3
Oscillator frequency fSW 400 490 580 kHz VFB = 0.75V (table: VIN = 12V, TA = 25°C) 4
Feedback voltage VFB 776 800 824 mV Table: VIN = 12V, TA = 25°C 4
EN rising threshold VEN RISING 1.4 1.5 1.6 V Table: VIN = 12V, TA = 25°C 4
EN falling threshold VEN FALLING 1.23 1.32 1.41 V Table: VIN = 12V, TA = 25°C 4
VIN under-voltage lockout threshold, rising INUVVth 3.85 4.2 4.55 V Table: VIN = 12V, TA = 25°C 4

CAD (KiCad official)

  • Symbol: MP1470BGJ-Z
  • Footprint: Package_TO_SOT_SMD:TSOT-23-6
  • 3D model: TSOT-23-6 (KiCad packages3D, STEP)
  • 3D model files: mp1470bgj-z-etched.step / mp1470bgj-z-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mp1470bgj-z.step / mp1470bgj-z.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Monolithic Power Systems datasheet (18 pp, sha256 cfd2b3dd5d39cd68, 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