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MD5125F

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Shanghai Mingda Microelectronics Linear Voltage Regulators (LDO), SOT-23-5L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management icsmd5125ffactory-2.0.0extractor-text

Verified MD5125F

by Ray · last 5 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

5 Nov 2026RayPublished by the parts factory: tier lcsc, 5 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: MD5125F · SOT-23-5L · 5 pins
  • ✓copper: 5 copper pads, none touching another net
  • ✓datasheet: all 5 pin names found in the 14-page datasheet
  • •distributor (warn): no ['digikey', 'mouser'] number
  • ✓family: SOT-23-5
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-mj_ucqjh/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: 5 pins = 5 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 5 pins agree
  • ✓symbol_text: no pin names collide
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ md5125f.kicad_sym✓ md5125f.kicad_mod✓ md5125f.step
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Contents

README

markdown

MD5125F

Shanghai Mingda Microelectronics · Linear Voltage Regulators (LDO) · SOT-23-5L

MD5125F from Shanghai Mingda Microelectronics, in a SOT-23-5L. 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 VIN power_in Input supply pin, operating range 1.5V to 7V in the electrical table (1.4V to 7.0V in the features), absolute maximum 8.0V, with a 1.0uF or larger input capacitor recommended.
2 GND power_in Ground pin.
3 CE input Chip enable, active high: VCE of 1.0V to 6.0V enables the output and 0V to 0.38V shuts down the IC and activates the COUT auto-discharge.
4 NC unconnected No internal connection.
5 VOUT power_out Regulated 2.5V output for the MD5125F, up to 300mA maximum output current, with a 0.1uF or larger output capacitor and a voltage limit of -0.3V to VIN+0.3V.

Key specifications

Parameter Value
Manufacturer Shanghai Mingda Microelectronics
Package SOT-23-5L
Category Power Management ICs
Pins 5

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 (absolute maximum) VIN -0.3 8 V 2
Output Voltage (absolute maximum, lower limit) VOUT -0.3 V Printed upper limit is VIN+0.3V (not a fixed number) 2
Power Dissipation PD 250 mW SOT23-5L package 2
Operating Ambient Temperature Topr -40 85 ℃ 2
Storage Temperature Tstg -40 125 ℃ 2
ESD Protection HBM ESD HBM 4000 V HBM 2
Output Voltage accuracy (ratio of VOUT(S), 2.5V part) VOUT(S) 0.98 1.02 ×VOUT(S) VIN=VOUT(S)+1.0V, IOUT=10mA, VOUT(S)≥2.0V 2
Dropout Voltage (VOUT<3V) VDROP 70 mV VCE=VIN, VOUT<3V, IOUT=100mA 2
Line Regulation ΔVOUT/ΔVIN 0.05 0.1 %/V VOUT(S)+0.5V≤VIN=VCE≤7V, IOUT=10mA 2
Load Regulation VOUT2 6 20 mV VIN=VCE=VOUT(S)+1.0V, 1mA≤IOUT≤100mA 2
Temperature Stability TCVOUT -50 50 ppm/℃ VIN=VCE=VOUT(S)+1.0V, IOUT=1mA, -40℃≤Ta≤85℃ 2
GND Current, no load IGND 0.5 0.9 uA CE=VIN, no load 2
GND Current, IOUT=100mA IGND 40 uA CE=VIN, IOUT=100mA 2
Shutdown Current ISHUT 0.01 0.1 uA VIN=7.0V, VCE=0 2
Input Voltage VIN 1.5 7 V 2
Maximum Output Current IOUTMAX 250 300 mA 2
Current Limit ILIM 300 470 mA VIN=VCE=VOUT(S)+1.0V, VOUT=0.95×VOUT(S) 2
Short Circuit Current ISHORT 65 mA VIN=VCE=VOUT(S)+1.0V, VOUT=0V 2
COUT Auto Discharge Resistance RDCHG 280 450 640 Ω VCE=0, VOUT=VOUT(S) 2
Power Supply Rejection Ratio at 10Hz PSRR 60 dB f=10Hz, VOUT(S)=2.5V 2
Power Supply Rejection Ratio at 100Hz PSRR 45 dB f=100Hz, VOUT(S)=2.5V 2
Power Supply Rejection Ratio at 1kHz PSRR 25 dB f=1kHz, VOUT(S)=2.5V 2
CE 'H' Level Voltage VCEH 1 6 V 2
CE 'L' Level Voltage VCEL 0 0.38 V 2
CE 'H' Level Current ICEH -0.1 0.1 uA VIN=6.0V, VCE=VIN 3
CE 'L' Level Current ICEL -0.1 0.1 uA VIN=6.0V, VCE=0 3
Input Capacitor (recommended) CIN 1 uF 3
Output Capacitor (recommended) COUT 0.1 uF 3

CAD (KiCad official)

  • Symbol: MD5125F
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5L (KiCad packages3D, STEP)
  • 3D model files: md5125f-etched.step / md5125f-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); md5125f.step / md5125f.glb are the bare package body.

Provenance

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

  • Datasheet: Shanghai Mingda Microelectronics datasheet (14 pp, sha256 b4e07f9e7dc888f1, retrieved 2026-11-05, 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