HT7233-MS

MSKSEMI · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89-3

HT7233-MS from MSKSEMI, 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	VSS	power_in	Ground reference pin, listed in the datasheet pin table as Ground (VSS).
2	VIN	power_in	Power input pin; the absolute maximum input voltage VIN is -0.3 V to +15 V, and a 10 µF tantalum input bypass capacitor is recommended.
3	VOUT	power_out	Regulated output pin for the 3.3 V HT7233-MS, with a minimum 10 µF tantalum output capacitor and ESR below 0.5 Ω required for stability.

Key specifications

Parameter	Value
Manufacturer	MSKSEMI
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
Limit Power Voltage	VIN	-0.3		15	V		3
Storage Temperature Range	TSTG	-50		125	℃		3
Operating Free-air Temperature Range	TA	-40		85	℃		3
Output Voltage (E)	VOUT(E)	0.98			X	IOUT=10mA, VIN= VOUT+2V	4
Output Voltage (T)	VOUT(T)			1.02	X		4
Output Voltage Accuracy	VOUT	-2		2	%		2
Maximum Output Current	IOUTMAX		300		mA	VIN= VOUT+2V	4
Load Regulation	ΔVOUT		37		mV	VIN= VOUT+2V, 1mA≤IOUT≤300mA	4
Dropout Voltage	VDIF1		180		mV	IOUT =100mA	4
Dropout Voltage	VDIF2		260		mV	IOUT =200mA	4
Supply Current	ISS		2		μA	VIN= VOUT+2V	4
Stand-by Current	ICEL		0		μA	VCE＝0V	4
Line Regulation	ΔVOUT		0.2		%/V	IOUT =30mA, VOUT+2V ≤VIN≤10V	4
CE High Voltage	VCEH		1.2		V	Start up	4
CE Low Voltage	VCEL		0.8		V	Shut down	4
Short-circuit Current	ISHORT		200		mA	VOUT＝0V	4
Thermal Shutdown Protection	Tsd		100		℃		4
Thermal Resistance (SOT89)	θJA		200		℃/W		3
Power Dissipation (SOT89)	PW		500		mW		3

CAD (KiCad official)

Symbol: HT7233-MS
Footprint: Package_TO_SOT_SMD:SOT-89-3
3D model: SOT-89-3 (KiCad packages3D, STEP)
3D model files: ht7233-ms-etched.step / ht7233-ms-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ht7233-ms.step / ht7233-ms.glb are the bare package body.

Provenance

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

Datasheet: MSKSEMI datasheet (7 pp, sha256 af3da0f8f75bbe7b, retrieved 2026-10-19, tier: lcsc)
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

# HT7233-MS

**MSKSEMI** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89-3

HT7233-MS from MSKSEMI, 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 | VSS | power_in | Ground reference pin, listed in the datasheet pin table as Ground (VSS). |
| 2 | VIN | power_in | Power input pin; the absolute maximum input voltage VIN is -0.3 V to +15 V, and a 10 µF tantalum input bypass capacitor is recommended. |
| 3 | VOUT | power_out | Regulated output pin for the 3.3 V HT7233-MS, with a minimum 10 µF tantalum output capacitor and ESR below 0.5 Ω required for stability. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | MSKSEMI |
| 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 |
|---|---|---|---|---|---|---|---|
| Limit Power Voltage | VIN | -0.3 |  | 15 | V |  | 3 |
| Storage Temperature Range | TSTG | -50 |  | 125 | ℃ |  | 3 |
| Operating Free-air Temperature Range | TA | -40 |  | 85 | ℃ |  | 3 |
| Output Voltage (E) | VOUT(E) | 0.98 |  |  | X | IOUT=10mA, VIN= VOUT+2V | 4 |
| Output Voltage (T) | VOUT(T) |  |  | 1.02 | X |  | 4 |
| Output Voltage Accuracy | VOUT | -2 |  | 2 | % |  | 2 |
| Maximum Output Current | IOUTMAX |  | 300 |  | mA | VIN= VOUT+2V | 4 |
| Load Regulation | ΔVOUT |  | 37 |  | mV | VIN= VOUT+2V, 1mA≤IOUT≤300mA | 4 |
| Dropout Voltage | VDIF1 |  | 180 |  | mV | IOUT =100mA | 4 |
| Dropout Voltage | VDIF2 |  | 260 |  | mV | IOUT =200mA | 4 |
| Supply Current | ISS |  | 2 |  | μA | VIN= VOUT+2V | 4 |
| Stand-by Current | ICEL |  | 0 |  | μA | VCE＝0V | 4 |
| Line Regulation | ΔVOUT |  | 0.2 |  | %/V | IOUT =30mA, VOUT+2V ≤VIN≤10V | 4 |
| CE High Voltage | VCEH |  | 1.2 |  | V | Start up | 4 |
| CE Low Voltage | VCEL |  | 0.8 |  | V | Shut down | 4 |
| Short-circuit Current | ISHORT |  | 200 |  | mA | VOUT＝0V | 4 |
| Thermal Shutdown Protection | Tsd |  | 100 |  | ℃ |  | 4 |
| Thermal Resistance (SOT89) | θJA |  | 200 |  | ℃/W |  | 3 |
| Power Dissipation (SOT89) | PW |  | 500 |  | mW |  | 3 |

## CAD (KiCad official)

- Symbol: `HT7233-MS`
- Footprint: `Package_TO_SOT_SMD:SOT-89-3`
- 3D model: SOT-89-3 (KiCad packages3D, STEP)
- 3D model files: `ht7233-ms-etched.step` / `ht7233-ms-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ht7233-ms.step` / `ht7233-ms.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [MSKSEMI datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603371732459794432) (7 pp, sha256 `af3da0f8f75bbe7b`, retrieved 2026-10-19, tier: lcsc)
- **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](docs/ht7233-ms-datasheet.pdf)