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MD7133

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Shanghai Mingda Microelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-3L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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MD7133

Shanghai Mingda Microelectronics · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-3L

MD7133 from Shanghai Mingda Microelectronics, in a SOT-23-3L. 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 terminal; the datasheet requires a capacitor of 2.2 µF or more (tantalum recommended) to be connected between VOUT and GND.
2 VDD power_in Supply input terminal; the absolute maximum input voltage is 18 V, the MD7133 regulation is specified for 4.3 V ≤ VIN ≤ 18 V, and an input capacitor of 1.0 µF or more is recommended.
3 VOUT power_out Regulated 3.3 V output (3.201 V to 3.399 V at VIN = 5.3 V, IOUT = 10 mA); VOUT must not exceed VIN + 0.3 V, and the short-circuit output current is about 30 mA.

Key specifications

Parameter Value
Manufacturer Shanghai Mingda Microelectronics
Package SOT-23-3L
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 VOUT 3.201 3.3 3.399 V VIN= 5.3V, IOUT=10mA 2
Output current IOUT 25 30 mA VIN= 5.3V 2
Input-output voltage difference Vdrop 40 60 mV IOUT=1mA 2
Input stability △VOUT △VIN·VOUT 0.05 0.2 ％/V 4.3V≤VIN≤18V, IOUT=1mA 2
Load stability △VOUT2 60 100 mV VIN=5.3V, 1.0mA≤IOUT≤30mA 2
Output voltage temperature coefficient △VOUT △Ta·VOUT 50 100 ppm/℃ VIN=5.3V, IOUT=10mA, -40℃≤Ta≤85℃ 2
Quiescent current ISS 1.2 5 uA VIN=18V, no load 2
Input voltage Vmax 18 V 2
Output short-circuit current Ishort 30 mA Vout=0V 2
Input voltage (absolute maximum) VIN 18 V 2
Power dissipation (SOT23-3/5) PD 250 mW SOT23-3/5 package, Ta=25℃ 2
Operating ambient temperature range Topr -40 85 ℃ 2
Storage ambient temperature range Tstg -40 125 ℃ 2
Input capacitor CIN 1 µF Input capacitor, minimum value as printed 5
Output capacitor (tantalum) CL 2.2 µF Tantalum capacitor 5
Output capacitor (aluminum electrolytic) CL 10 µF Aluminum electrolytic capacitor 5

CAD (KiCad official)

  • Symbol: MD7133
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3L (KiCad packages3D, STEP)
  • 3D model files: md7133-etched.step / md7133-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); md7133.step / md7133.glb are the bare package body.

Provenance

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

  • Datasheet: Shanghai Mingda Microelectronics datasheet (12 pp, sha256 a3ed5d5344bdc5d5, retrieved 2026-10-20, 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-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