component
MD8436
Public Made by Adomby adom
Shanghai Mingda Microelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownMD8436
Shanghai Mingda Microelectronics · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5L
MD8436 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 | Power input pin; the input voltage range is 2.2 V to 40 V and absolute maximum VIN is -0.3 V to 45 V. |
| 2 | GND | power_in | Ground pin, which is the reference for the regulator. |
| 3 | EN | input | Enable pin: drive high (VENH 1.5 V to 40 V) to enable the device and low (VENL 0 V to 0.6 V) to put it into low-current shutdown. |
| 4 | NC | unconnected | No internal connection. |
| 5 | VOUT | power_out | Regulated output voltage pin; VOUT must not be driven above VIN + 0.3 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Shanghai Mingda Microelectronics |
| Package | SOT-23-5L |
| 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 |
|---|---|---|---|---|---|---|---|
| Output Voltage Tolerance (VOUT(S) ±2%) | VOUT(S) | -2 | 2 | % | VIN=VOUT(S)+2V, IOUT=10mA | 4 | |
| Input Voltage | VIN | 2.2 | 40 | V | 4 | ||
| Maximum Output Current | IOUTMAX | 300 | 350 | mA | 4 | ||
| Current Limit | ILIM | 350 | 550 | mA | VIN= VOUT(S)+2V, VOUT = 0.95 ×VOUT(S) | 4 | |
| Line Regulation | ΔVOUT/ΔVIN | 0.01 | 0.02 | %/V | VOUT(S)+2V≤VIN≤40V, IOUT=1mA | 4 | |
| Load Regulation | VOUT2 | 20 | 40 | mV | VIN = VOUT(S)+2V, 1mA≤IOUT≤300mA, VOUT(S)≤5.3V | 4 | |
| Temperature Stability | ΔVOUT/ΔT | -50 | 50 | ppm/℃ | VIN = VOUT(S)+2V, IOUT=10mA, -40℃≤Ta≤125℃ | 4 | |
| GND Current | IGND | 1 | 1.5 | 2.5 | uA | no load; 3.0≤VOUT(S)≤5.3V | 4 |
| Shutdown Current | ISHUT | 0.01 | 0.1 | uA | VIN=30.0V, VEN=0 | 4 | |
| EN 'H' Level Voltage | VENH | 1.5 | 40 | V | 4 | ||
| EN 'L' Level Voltage | VENL | 0 | 0.6 | V | 4 | ||
| EN 'H' Level Current | IENH | -0.1 | 0.1 | uA | VIN=40V, VEN=VIN | 4 | |
| EN 'L' Level (printed as Voltage) Current | IENL | -0.1 | 0.1 | uA | VIN=40V, VEN=0 | 4 | |
| Input Voltage (absolute maximum) | VIN | -0.3 | 45 | V | 3 | ||
| Power Dissipation (SOT23-5) | PD | 250 | mW | SOT23-5 | 3 | ||
| Operating Ambient Temperature | Topr | -40 | 85 | ℃ | 3 | ||
| Storage Temperature | Tstg | -40 | 125 | ℃ | 3 | ||
| ESD Protection (HBM) | ESD HBM | 2000 | V | 3 | |||
| Input Capacitor (CIN) | CIN | 1 | µF | Notes on Use: 1.0µF above | 3 | ||
| Output Capacitor (COUT) | COUT | 1 | µF | Notes on Use: 1.0µF above | 3 | ||
| Thermal Resistance Junction-to-Board (SOT23-5) | RθJB | 180 | ℃/W | Mounted on JEDEC standard 4layer (2s2p) PCB test board | 3 | ||
| Output Voltage (nominal, MD8436) | VOUT(S) | 3.6 | V | 1 |
CAD (KiCad official)
- Symbol:
MD8436 - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5L (KiCad packages3D, STEP)
- 3D model files:
md8436-etched.step/md8436-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);md8436.step/md8436.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Shanghai Mingda Microelectronics datasheet (15 pp, sha256
627a9d1fa1c18cbe, retrieved 2026-10-20, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).