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MD58E36QC3

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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.

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MD58E36QC3

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

MD58E36QC3 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 accepting 2.2 V to 5.5 V (absolute maximum 6.0 V), requiring a 1 µF or larger ceramic input capacitor.
2 GND power_in Ground pin of the regulator.
3 EN input Enable input with an internal 1 MΩ pulldown to GND; above 1.1 V (VENH) enables the device, below 0.35 V (VENL) disables it and activates the 240 Ω output auto-discharge.
4 NC unconnected No internal connection.
5 VOUT power_out Regulated 3.6 V output (MD5836) supplying up to 500 mA, requiring at least a 1 µF ceramic output capacitor that may be placed up to 10 cm away.

Key specifications

Parameter Value
Manufacturer Shanghai Mingda Microelectronics
Package SOT-23-5L
Category Power Supply Chip
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
Output Voltage Tolerance VOUT(S) -2 2 % VIN=VOUT(S)+1.0V, IOUT=1mA, VOUT(S)≥2.0V 1
Input Voltage VIN 2.2 5.5 V 4
Line Regulation 0.02 0.1 %/V VOUT(S)+1.0V≤VIN=VEN≤5.5V, IOUT=10mA 4
Load Regulation VOUT2 20 40 mV VIN=VEN=VOUT(S)+1.0V, 1mA≤IOUT≤500mA 4
Temperature Stability -60 60 ppm/℃ VIN=VEN=VOUT(S)+1.0V, IOUT=1mA, -40℃≤Ta≤125℃ 4
GND Current no load IGND 20 40 µA VEN=VIN, no load 4
Shutdown Current ISHUT 0.01 0.1 µA VIN=5.5V, VEN=0 4
Maximum Output Current IOUTMAX 450 500 mA 4
Start-Up Time TSTART 80 150 µs From VEN>VENH to VOUT=95% of VOUT 4
EN High Level Voltage VENH 1.1 5.5 V 4
EN Low Level Voltage VENL 0 0.35 V 4
EN High Level Current IENH -0.1 0.1 µA VIN=5.5V, VEN=VIN 4
EN Low Level Current IENL -0.1 0.1 µA VIN=5.5V, VEN=0 4
Input Voltage VIN -0.3 6 V Ta=25℃ 3
Output Voltage VOUT -0.3 V -0.3 ~ VIN+0.3V 3
Power Dissipation PD 250 mW SOT23-5L 3
Operating Ambient Temperature Topr -40 85 ℃ 3
Storage Temperature Tstg -40 125 ℃ 3
ESD Protection ESD 6000 V HBM 3
Operating Junction Temperature TJ -40 125 ℃ 1
Thermal Resistance RθJA 180 ℃/W SOT23-5L 3
Dropout Voltage VDROP 220 mV VEN=VIN, VOUT≥3V, IOUT=500mA 4
GND Current at 500mA IGND 680 µA VEN=VIN, IOUT=500mA 4
Current Limit ILIM 750 mA VIN=VEN=VOUT(S)+1.0V, VOUT = 0.95 ×VOUT(S) 4
COUT Auto Discharge Resistance RDCHG 240 Ω VEN=0, VOUT=VOUT(S) 4
PSRR PSRR 91 dB f=1kHz, IOUT=20mA 4
Output noise voltage eN 10 µVRMS IOUT=20mA 4
Over Temperature Protection OTP 155 ℃ IOUT=1mA 4

CAD (KiCad official)

  • Symbol: MD58E36QC3
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5L (KiCad packages3D, STEP)
  • 3D model files: md58e36qc3-etched.step / md58e36qc3-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); md58e36qc3.step / md58e36qc3.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 bb956f4399e0ae25, retrieved 2026-10-24, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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