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MD7315

Public Made by Adom

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Shanghai Mingda Microelectronics Linear Voltage Regulators (LDO), TO-92-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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MD7315

Shanghai Mingda Microelectronics · Linear Voltage Regulators (LDO) · TO-92-3

MD7315 from Shanghai Mingda Microelectronics, in a TO-92-3. 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 Ground (VSS) reference pin; the output capacitor of 2.2 µF or more should be placed close to the VOUT-VSS pins.
2 VDD power_in Positive supply input (VIN); absolute maximum 18 V, with an input capacitor of 1.0 µF or more recommended.
3 OUT power_out Regulated 1.5 V output (±2%) for the MD7315; needs a capacitor of 2.2 µF or more to VSS, must not exceed VIN+0.3 V, and has short-circuit current limited to 15 to 50 mA.

Key specifications

Parameter Value
Manufacturer Shanghai Mingda Microelectronics
Package TO-92-3
Category Power Supply Chip
Pins 3

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Output voltage VOUT 1.47 1.5 1.53 V VIN=3.5V, IOUT=10mA 2
Output current IOUT 100 mA VIN=3.5V 2
Input-output voltage drop Vdrop 120 mV IOUT=5mA 2
Line regulation ΔVOUT1/ΔVIN·VOUT 0.05 0.2 %/V 2.5V≤VIN≤15V, IOUT=1mA 2
Load regulation ΔVOUT2 45 90 mV VIN=3.5V, 1.0mA≤IOUT≤100mA 2
Output voltage temperature coefficient ΔVOUT/ΔTa·VOUT -100 50 100 ppm/℃ VIN=3.5V, IOUT=1mA, -40℃≤Ta≤85℃ 2
Supply current ISS1 1.2 2.5 uA VIN=15V, no load 2
Input voltage VIN 18 V 2
Output short-circuit current Ilim 15 50 mA Vout=0V 2
Input voltage (absolute maximum) VIN 18 V Ta=25℃ 2
Power dissipation (TO-92) PD 250 mW TO_92, Ta=25℃ 2
Operating ambient temperature Topr -40 85 ℃ 2
Storage ambient temperature Tstg -40 125 ℃ 2
Output voltage tolerance -2 2 % MD7315, 1.5V 1

CAD (KiCad official)

  • Symbol: MD7315
  • Footprint: Package_TO_SOT_THT:TO-92_Inline
  • 3D model: TO-92-3 (KiCad packages3D, STEP)
  • 3D model files: md7315-etched.step / md7315-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); md7315.step / md7315.glb are the bare package body.

Provenance

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

  • Datasheet: Shanghai Mingda Microelectronics datasheet (13 pp, sha256 f5efc29fea38182c, retrieved 2026-10-23, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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