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MD85E36PA1

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Shanghai Mingda Microelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Contents

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MD85E36PA1

Shanghai Mingda Microelectronics · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89-3

MD85E36PA1 from Shanghai Mingda Microelectronics, in a SOT-89-3. 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 VOUT power_out Regulated output voltage pin; the VOUT potential must not exceed VIN+0.3 V, and the output current is rated up to 300 mA.
2 GND power_in Ground reference pin (GND node) for the regulator; the datasheet gives no separate electrical limit for this pin.
3 VIN power_in Power input pin; the input voltage operating range is 2.2 V to 40 V, with an absolute maximum VIN of -0.3 V to 45 V.

Key specifications

Parameter Value
Manufacturer Shanghai Mingda Microelectronics
Package SOT-89-3
Category Power Management (PMIC)
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 (min, multiplier of VOUT(S)) VOUT(S) 0.98 1.02 V VIN= VOUT(S)+2V, IOUT=1mA 5
Input Voltage VIN 2.2 40 V 5
Dropout Voltage VDROP 4 8 mV VEN=VIN, VOUT(S)=3.3V, IOUT=1mA 5
Dropout Voltage VDROP 1200 1800 mV VEN=VIN, VOUT(S)=3.3V, IOUT=300mA 5
Line Regulation ΔVOUT/ΔVIN 0.01 0.02 %/V VOUT(S)+2V≤VIN≤40V, IOUT=1mA 5
Load Regulation VOUT 25 50 mV VIN = VOUT(S)+2V, 1mA≤IOUT≤300mA, VOUT(S)≤5.3V 5
Temperature Stability ΔVOUT/ΔT -50 50 ppm/℃ VIN = VOUT(S)+2V, IOUT=10mA, -40℃≤Ta≤125℃ 5
GND Current (no load) IGND 1 1.5 2.5 uA VEN=VIN, no load, 3.0≤VOUT(S)≤5.3V 5
Shutdown Current ISHUT 0.1 1 uA VIN=40.0V, VEN=0 5
Maximum Output Current IOUTMAX 300 350 mA 5
Current Limit ILIM 350 550 mA VIN= VOUT(S)+2V, VOUT = 0.95 ×VOUT(S) 5
EN 'H' Level Voltage VENH 1.5 40 V 5
EN 'L' Level Voltage VENL 0 0.6 V 5
EN 'H' Level Current IENH -0.1 0.1 uA VIN=40V, VEN=VIN 5
EN 'L' Level Current IENL -0.1 0.1 uA VIN=40V, VEN=0 5
Input Voltage (absolute maximum) VIN -0.3 45 V 4
Power Dissipation PD 1000 mW SOT89-3 4
Thermal Resistance Junction-to-Ambient RθJA 100 ℃/W SOT89-3 4
Storage Temperature Tstg -40 125 ℃ 4
Operating Ambient Temperature Topr -40 85 ℃ 4

CAD (KiCad official)

  • Symbol: MD85E36PA1
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89-3 (KiCad packages3D, STEP)
  • 3D model files: md85e36pa1-etched.step / md85e36pa1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); md85e36pa1.step / md85e36pa1.glb are the bare package body.

Provenance

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

  • Datasheet: Shanghai Mingda Microelectronics datasheet (16 pp, sha256 eb9db1999ca1681a, retrieved 2026-10-19, 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