DIO7553ST6

DIOO · Power Distribution Switches · SOT-23-6

DIO7553ST6 from DIOO, in a SOT-23-6. 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	IN	power_in	Input voltage (2.7V to 5.5V operating range); connect a 0.1µF or greater ceramic capacitor from IN to GND as close to the IC as possible.
2	GND	power_in	Ground pin.
3	EN	input	Enable input for the DIO7553, active high: logic high turns on the power switch (VIH min 1.4V, VIL max 0.4V).
4	FAULT	output	Active-low open-drain output, asserted during over current, over temperature, or reverse-voltage conditions (max 6.0V, 10mA flag current).
5	ILIM	passive	External resistor to GND sets the current-limit threshold; recommended 10kΩ ≤ RILIM ≤ 64kΩ, IOS(A)=25752/Rset(Ω).
6	OUT	power_out	Power-switch output.

Key specifications

Parameter	Value
Manufacturer	DIOO
Package	SOT-23-6
Category	Power Management (PMIC)
Pins	6

CAD (KiCad official)

Symbol: DIO7553ST6
Footprint: Package_TO_SOT_SMD:SOT-23-6
3D model: SOT-23-6 (KiCad packages3D, STEP)
3D model files: dio7553st6-etched.step / dio7553st6-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); dio7553st6.step / dio7553st6.glb are the bare package body.

Provenance

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

Datasheet: DIOO datasheet (11 pp, sha256 fd579156befae9d6, retrieved 2026-10-09, 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

# DIO7553ST6

**DIOO** · Power Distribution Switches · SOT-23-6

DIO7553ST6 from DIOO, in a SOT-23-6. 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 | IN | power_in | Input voltage (2.7V to 5.5V operating range); connect a 0.1µF or greater ceramic capacitor from IN to GND as close to the IC as possible. |
| 2 | GND | power_in | Ground pin. |
| 3 | EN | input | Enable input for the DIO7553, active high: logic high turns on the power switch (VIH min 1.4V, VIL max 0.4V). |
| 4 | FAULT | output | Active-low open-drain output, asserted during over current, over temperature, or reverse-voltage conditions (max 6.0V, 10mA flag current). |
| 5 | ILIM | passive | External resistor to GND sets the current-limit threshold; recommended 10kΩ ≤ RILIM ≤ 64kΩ, IOS(A)=25752/Rset(Ω). |
| 6 | OUT | power_out | Power-switch output. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | DIOO |
| Package | SOT-23-6 |
| Category | Power Management (PMIC) |
| Pins | 6 |

## CAD (KiCad official)

- Symbol: `DIO7553ST6`
- Footprint: `Package_TO_SOT_SMD:SOT-23-6`
- 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files: `dio7553st6-etched.step` / `dio7553st6-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `dio7553st6.step` / `dio7553st6.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [DIOO datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588946072404574208) (11 pp, sha256 `fd579156befae9d6`, retrieved 2026-10-09, 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/dio7553st6-datasheet.pdf)