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Contents

Pinout
Key specifications
Electrical characteristics
CAD (KiCad official)
Provenance

README

markdown

MD7136H

Shanghai Mingda Microelectronics · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89-3

MD7136H 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 terminal of the regulator; the datasheet gives no additional limits for this pin.
2	VDD	power_in	Power supply input, rated up to 32 V (absolute maximum VIN 32 V), with overvoltage protection stated for the input.
3	VOUT	power_out	Regulated output that must not be driven more than 0.3 V above VIN, and requires an output capacitor of at least 2.2 µF (tantalum) or 10 µF (aluminum electrolytic) to remain stable.

Key specifications

Parameter	Value
Manufacturer	Shanghai Mingda Microelectronics
Package	SOT-89-3
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	3.492	3.6	3.708	V	VIN= 5.6V, IOUT=10mA	3
Output current	IOUT	25		30	mA	VIN= 5.6V	3
Input-output voltage difference	Vdrop		40	60	mV	IOUT=1mA	3
Input stability	ΔVOUT/ΔVIN·VOUT		0.05	0.2	％/V	4.6V≤VIN≤32V, IOUT=1mA	3
Load stability	ΔVOUT2		60	100	mV	VIN=5.6V, 1.0mA≤IOUT≤30mA	3
Output voltage temperature coefficient	ΔVOUT/ΔTa·VOUT	-100	50	100	ppm/℃	VIN=5.6V, IOUT=10mA, -40℃≤Ta≤85℃	3
Quiescent current	ISS		1.2	5	uA	VIN=32V, no load	3
Input voltage (maximum operating)	Vmax			32	V		3
Output short-circuit current	Ishort		30		mA	VOUT=0V	3
Input voltage absolute maximum	VIN			32	V		2
Output voltage absolute range	VOUT	-0.3			V	Vss-0.3 to VIN+0.3V; upper limit is VIN+0.3V (not a fixed number)	2
Power dissipation (SOT-89)	PD			500	mW	SOT_89 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		5
Output capacitor (tantalum)	CL	2.2			µF		5
Output capacitor (aluminum electrolytic alternative)	CL	10			µF		5
Output capacitor ESR range	ESR	0.5		5	Ω	approximate appropriate range for stable operation	7

CAD (KiCad official)

Symbol: MD7136H
Footprint: Package_TO_SOT_SMD:SOT-89-3
3D model: SOT-89-3 (KiCad packages3D, STEP)
3D model files: md7136h-etched.step / md7136h-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); md7136h.step / md7136h.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 0de18d8f469d00d1, retrieved 2026-10-18, 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