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MD5150

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

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MD5150

Shanghai Mingda Microelectronics · Linear Voltage Regulators (LDO) · SOT-89-3

MD5150 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 GND power_in Ground; also the return for the internal COUT auto-discharge switch (about 450 ohm typ.) connected to VOUT when the output is disabled.
2 VIN power_in Input supply, 1.5V to 7V operating range (absolute maximum 8.0V), with a recommended input capacitor of 1.0uF or more placed close to the IC.
3 VOUT power_out Regulated 5.0V output (±2%) delivering up to 300mA, with a recommended output capacitor of 0.1uF or more and a voltage limit of VIN+0.3V.

Key specifications

Parameter Value
Manufacturer Shanghai Mingda Microelectronics
Package SOT-89-3
Category Power Management ICs
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
Input Voltage VIN -0.3 8 V Ta=25℃ 2
Output Voltage VOUT -0.3 V -0.3 ~ VIN+0.3V 2
Power Dissipation SOT89-3L PD 500 mW SOT89-3L 2
Operating Ambient Temperature Topr -40 85 ℃ 2
Storage Temperature Tstg -40 125 ℃ 2
ESD Protection HBM ESD HBM 6000 V 2
Output Voltage (VOUT(S)≥2.0V, lower bound factor) VOUT(S) 0.98 1.02 V VIN=VOUT(S)+1.0V, IOUT=10mA, VOUT(S)≥2.0V; printed as VOUT(S)0.98 / VOUT(S)1.02 (multiples of VOUT(S)) 2
Dropout Voltage VDROP 60 mV VCE=VIN, VOUT≥3V, IOUT=100mA 2
Line Regulation ΔVOUT/(ΔVIN·VOUT(S)) 0.05 0.1 %/V VOUT(S)+0.5V≤VIN=VCE≤7V, IOUT=10mA 2
Load Regulation ΔVOUT2 6 20 mV VIN=VCE=VOUT(S)+1.0V, 1mA≤IOUT≤100mA 2
Temperature Stability ΔVOUT/(ΔTa·VOUT(S)) -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 (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
CE High Level Voltage VCEH 1 6 V 2
CE Low Level Voltage VCEL 0 0.38 V 3
CE High Level Current ICEH -0.1 0.1 uA VIN=6.0V, VCE=VIN 3
CE Low Level Current ICEL -0.1 0.1 uA VIN=6.0V, VCE=0 3
Power Supply Rejection Ratio PSRR 60 dB f=10Hz, VOUT(S)=2.5V 2
Power Supply Rejection Ratio PSRR 45 dB f=100Hz, VOUT(S)=2.5V 2
Power Supply Rejection Ratio PSRR 25 dB f=1kHz, VOUT(S)=2.5V 2

CAD (KiCad official)

  • Symbol: MD5150
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89-3 (KiCad packages3D, STEP)
  • 3D model files: md5150-etched.step / md5150-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); md5150.step / md5150.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 b9016866a24d108a, retrieved 2026-10-23, tier: lcsc)
  • 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