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MD7219E33PC1

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Shanghai Mingda Microelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89-5L. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.

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MD7219E33PC1

Shanghai Mingda Microelectronics · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89-5L

MD7219E33PC1 from Shanghai Mingda Microelectronics, in a SOT-89-5L. 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 NC unconnected No connection; the datasheet pin drawing labels this pin NC.
2 GND power_in Ground pin; the drawing also shows the top-side tab numbered 2.
3 EN input Enable input, active high: VEN high level is 1.6V to 18V and low level is 0V to 0.5V.
4 VIN power_in Input supply, operating range 2.2V to 18V (absolute maximum 20V).
5 VOUT power_out Regulated 3.3V output for MD7219E33, up to 1A, with ±2% accuracy.

Key specifications

Parameter Value
Manufacturer Shanghai Mingda Microelectronics
Package SOT-89-5L
Category Power Management (PMIC)
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 20 V 3
Storage Temperature Tstg -40 125 ℃ 3
Operating Ambient Temperature Topr -40 85 ℃ 3
ESD Protection ESD HBM 4000 V HBM 3
Power Dissipation (SOT89-5L) PD 1000 mW 3
Output Voltage VOUT(S) 0.98 1.02 V VIN= VOUT(S)+2V, IOUT=1mA; min/max printed as multiples of VOUT(S) 4
Dropout Voltage VDROP 3 8 mV VOUT(S)=3.3V, IOUT=1mA 4
Dropout Voltage VDROP 900 1300 mV VOUT(S)=3.3V, IOUT=1A 4
Line Regulation 0.01 0.02 %/V VOUT(S)+2V≤VIN≤18V, IOUT=1mA 4
Temperature Stability -50 50 ppm/℃ VIN = VOUT(S)+2V, IOUT=1mA, -40℃≤Ta≤125℃ 4
GND Current (no load, VOUT(S)≤5.0V) IGND 14 30 µA no load, VOUT(S)≤5.0V 4
Shutdown Current ISHUT 0.1 1 µA VIN=18V, VEN=0 4
Input Voltage VIN 2.2 18 V 4
EN 'H' Level Voltage VENH 1.6 18 V 4
EN 'L' Level Voltage VENL 0 0.5 V 4
EN 'H' Level Current IENH -0.1 0.1 µA VIN=18V, VEN=VIN 4
EN 'L' Level Current IENL -0.1 0.1 µA VIN=18V, VEN=0 4
Load Regulation VOUT2 80 mV VIN=VOUT(S)+2V, 1mA≤IOUT≤1A, VOUT(S)≤5.0V 4
GND Current (IOUT=100mA) IGND 420 µA IOUT=100mA 4
Maximum Output Current IOUTMAX 1 A 4
Current Limit ILIM 1.35 A VIN= VOUT(S)+2V, VOUT = 0.95 ×VOUT(S) 4
Power Supply Rejection Ratio PSRR 72 dB f=10Hz, IOUT=10mA 4
Power Supply Rejection Ratio PSRR 80 dB f=100Hz, IOUT=10mA 4
Power Supply Rejection Ratio PSRR 75 dB f=1kHz, IOUT=10mA 4
Short Circuit Current ISHORT 40 mA VIN=VEN=VOUT(S)+2.0V, VOUT=0V 4
Over Temperature Protection OTP 150 ℃ IOUT=1mA 4
Thermal Resistance (SOT89-5L) RθJA 100 ℃/W 3

CAD (KiCad official)

  • Symbol: MD7219E33PC1
  • Footprint: Package_TO_SOT_SMD:SOT-89-5
  • 3D model: SOT-89-5L (KiCad packages3D, STEP)
  • 3D model files: md7219e33pc1-etched.step / md7219e33pc1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); md7219e33pc1.step / md7219e33pc1.glb are the bare package body.

Provenance

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

  • Datasheet: Shanghai Mingda Microelectronics datasheet (15 pp, sha256 0052f2803aae3218, retrieved 2026-10-22, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF