component
DIO54270TST6
Public Made by Adomby adom
DIOO DC-DC Converters, TSOT-23-6. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Contents
README
markdownDIO54270TST6
DIOO · DC-DC Converters · TSOT-23-6
DIO54270TST6 from DIOO, in a TSOT-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 | GND | power_in | Power ground. |
| 2 | SW | output | Inductor pin; connect to the switching node of the inductor. |
| 3 | VIN | power_in | Power input, 4.5V to 28V operating range (30V absolute maximum supply). |
| 4 | FB | input | Output feedback pin; connect to the center point of the output resistor divider to program VOUT=0.8*(1+R1/R2), with optional 10pF~47pF C2 to speed up transient response. |
| 5 | EN | input | Enable control; pull high to turn on and do not float (rising threshold 1.5V, falling threshold 0.4V). |
| 6 | BS | passive | Bootstrap pin; connect a capacitor (0.1µF recommended) and a resistor between SW and BS to form a floating supply across the high-side switch driver. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | DIOO |
| Package | TSOT-23-6 |
| Category | Power Management (PMIC) |
| Pins | 6 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply Voltage (V+, V-) | 30 | V | 3 | ||||
| FB Voltage | 6 | V | 3 | ||||
| Power Dissipation, PD @ TA = 25°C, TSOT23-6 | PD | 0.6 | W | TA = 25°C, TSOT23-6 | 3 | ||
| Storage Temperature Range | -65 | 150 | °C | 3 | |||
| Junction Temperature Range (absolute maximum) | 150 | °C | 3 | ||||
| Lead Temperature Range | 260 | °C | 3 | ||||
| Supply Voltage | 4.5 | 28 | V | 3 | |||
| Junction Temperature Range (recommended) | -40 | 125 | °C | 3 | |||
| Ambient Temperature Range | -40 | 85 | °C | 3 | |||
| Package Thermal Resistance, junction-to-ambient | ӨJA | 170 | °C/W | 3 | |||
| Package Thermal Resistance, junction-to-case | ӨJC | 130 | °C/W | 3 | |||
| Input Voltage Range | VIN | 4.5 | 28 | V | 4 | ||
| Feedback Reference Voltage | VREF | 0.788 | 0.8 | 0.812 | V | 4 | |
| FB Input Current | IFB | -50 | 50 | nA | VFB=VIN | 4 | |
| Quiescent Current | IQ | 140 | µA | IOUT=0, VFB=VREF ⋅ 105% | 4 | ||
| Shutdown Current | ISHDN | 5 | 10 | µA | EN=0 | 4 | |
| Top FET RON | RDS(ON) | 120 | mΩ | 4 | |||
| Bottom FET RON | RDS(ON) | 75 | mΩ | 4 | |||
| Bottom FET Valley Current Limit | ILIM | 2 | A | 4 | |||
| EN Rising Threshold | VENH | 1.5 | V | 4 | |||
| EN Falling Threshold | VENL | 0.4 | V | 4 | |||
| Input UVLO Threshold | VUVLO | 4.5 | V | 4 | |||
| Switching Frequency | fSW | 500 | kHz | 4 | |||
| ON Time | TON | 200 | ns | VIN = 12V, VOUT = 1.2V, IOUT=1A | 4 | ||
| Min ON Time | 50 | ns | 4 | ||||
| Min OFF Time | 100 | ns | 4 | ||||
| Soft Start Time | TSS | 1 | ms | 4 | |||
| Thermal Shutdown Temperature | TSD | 150 | °C | 4 | |||
| Thermal Shutdown Hysteresis | THYS | 15 | °C | 4 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | copper | 1) It is desirable to maximize the PCB copper area connecting to GND pin to achieve the best thermal and | 9 |
CAD (KiCad official)
- Symbol:
DIO54270TST6 - Footprint:
Package_TO_SOT_SMD:TSOT-23-6 - 3D model: TSOT-23-6 (KiCad packages3D, STEP)
- 3D model files:
dio54270tst6-etched.step/dio54270tst6-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);dio54270tst6.step/dio54270tst6.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: DIOO datasheet (10 pp, sha256
116b874f6e5de025, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).