component

HE9459M6R

Public Made by Adom

by adom

HEERMICR DC-DC Converters, SOT-23-6. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management (pmic)he9459m6rfactory-2.0.0extractor-text

Verified HE9459M6R

by Ray · last 4 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

4 Nov 2026RayPublished by the parts factory: tier lcsc, 6 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: HE9459M6R · SOT-23-6 · 6 pins
  • ✓copper: 6 copper pads, none touching another net
  • ✓datasheet: all 6 pin names found in the 12-page datasheet
  • •distributor (warn): no ['digikey', 'mouser'] number
  • ✓family: SOT-23-6
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-8epprt0h/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓pads: 6 pins = 6 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 6 pins agree
  • ✓symbol_text: no pin names collide
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ he9459m6r.kicad_sym✓ he9459m6r.kicad_mod✓ he9459m6r.step
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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 2d ago
viewers he9459m6r: viewers · Ray 2d ago
he9459m6r-etched.glb Publish 0.1.0 · Ray 2d ago
he9459m6r-etched.step he9459m6r: factory component page (tier=lcsc) · Ray 2d ago
he9459m6r-hero.glb he9459m6r: hero GLB from the etched model (keeps the MPN mark) · Ray 2d ago
he9459m6r-hero.overlay.json Publish 0.1.0 · Ray 2d ago
he9459m6r.glb Publish 0.1.0 · Ray 2d ago
he9459m6r.kicad_mod Publish 0.1.0 · Ray 2d ago
he9459m6r.kicad_sym Publish 0.1.0 · Ray 2d ago
he9459m6r.lbr Publish 0.1.0 · Ray 2d ago
he9459m6r.step Publish 0.1.0 · Ray 2d ago
package.json Publish 0.1.0 · Ray 2d ago
page.json Set visibility: public · Ray 2d ago
README.md Publish 0.1.0 · Ray 2d ago
verification.json Verified: Published by the parts factory: tier lcsc, 6 pins · Ray 2d ago

HE9459M6R

HEERMICR · DC-DC Converters · SOT-23-6

HE9459M6R from HEERMICR, in a SOT-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 BST passive A capacitor connected between SW and BST is required to form a floating supply across the high-side switch driver.
2 GND power_in Ground pin of the device.
3 FB input Adjustable-version feedback input; connect FB to the center point of the external resistor divider.
4 EN input Drive to a logic-high to enable the IC and to a logic-low to disable it and enter micro-power shutdown mode.
5 IN power_in Power supply pin; the electrical characteristics give an input voltage range of 4.5V to 55V.
6 SW power_out Switching pin that drives the external inductor and is referenced to the BST capacitor; SW voltage is rated -0.3V to (VIN+0.5V).

Key specifications

Parameter Value
Manufacturer HEERMICR
Package SOT-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 Range 4.5 55 V 4
Supply Current (Quiescent) 2 mA VEN =3.0V 4
Supply Current (Shutdown) 4 uA VEN =0 or EN = GND 4
EN Rising Threshold 1.5 V 4
EN Falling Threshold 0.6 V 4
Under-Voltage Lockout Threshold Wake up VIN Voltage 4.8 V 4
Under-Voltage Lockout Threshold Shutdown VIN Voltage 3.5 V 4
Vin,EN Voltage Vin, EN -0.3 65 V 4
FB Voltages -0.3 6 V 4
SW Voltage -0.3 V maximum printed as (VIN+0.5V) 4
BS Voltage -0.3 5 V relative to SW pin: (Vsw-0.3) to (Vsw+5V) 4
Operating Temperature Range -40 85 ℃ 4
Lead Temperature (Soldering, 10s) 260 ℃ soldering, 10s 4
Storage Temperature Range -55 150 ℃ 4
Feedback Voltage VFB 0.8 V 4
Upper Switch Current Limit 1.5 A 4
Switching Frequency 1.5 MHz 4
Maximum Duty Cycle 98 % VFB=90% 4
Soft Start 0.85 mS 4
Switch On-Resistance 800 mΩ 4
Minimum On-Time 100 nS 4
Thermal Shutdown 160 ℃ 4
Thermal Hysteresis 30 ℃ 4
Thermal Resistance (θJA) θJA 160 ℃/W 4

CAD (KiCad official)

  • Symbol: HE9459M6R
  • Footprint: Package_TO_SOT_SMD:SOT-23-6
  • 3D model: SOT-23-6 (KiCad packages3D, STEP)
  • 3D model files: he9459m6r-etched.step / he9459m6r-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); he9459m6r.step / he9459m6r.glb are the bare package body.

Provenance

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

  • Datasheet: HEERMICR datasheet (12 pp, sha256 5cc93c667e50ce87, retrieved 2026-11-04, 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