component
DIO61845ST6
Public Made by Adomby adom
DIOO DC-DC Converters, SOT-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.
README
markdownDIO61845ST6
DIOO · DC-DC Converters · SOT-23-6
DIO61845ST6 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 | BST | power_out | Bootstrap supply for the internal floating high-side MOSFET driver; a bypass capacitor is connected between BST and SW. |
| 2 | GND | power_in | Ground; the output capacitor should be connected as close to GND as possible and GND should be kept away from high-current switch paths. |
| 3 | FB | input | Error amplifier input that connects to a resistor divider between VOUT and GND and is compared against the internal 0.8V reference to set the regulation voltage. |
| 4 | EN | input | Enable input: pulling it below the 1.55V falling threshold shuts the chip down, above the 1.8V rising threshold enables it, and floating it disables the chip; EN is Zener-clamped at 7.5V and a pull-up to VIN should limit its input current below 100µA. |
| 5 | VIN | power_in | Input supply for the control circuitry, both BST regulators and the high-side switch, operating from 5V to 40V, with a decoupling capacitor to ground placed close to the pin. |
| 6 | SW | output | Switch node, the output of the high-side switch, which must be kept within the -0.3 V to (VIN + 0.3 V) absolute maximum rating. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | DIOO |
| Package | SOT-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 VIN | VIN | -0.3 | 42 | V | 3 | ||
| Switch voltage VSW | VSW | -0.3 | V | Upper limit printed as VIN + 0.3 | 3 | ||
| BST to SW voltage | -0.3 | 6 | V | 3 | |||
| All other pins voltage | -0.3 | 6 | V | 3 | |||
| Continuous power dissipation | 0.6 | W | TA = 25°C | 3 | |||
| Junction temperature | 150 | °C | 3 | ||||
| Lead temperature | 260 | °C | 3 | ||||
| Storage temperature | -65 | 150 | °C | 3 | |||
| ESD Human Body Model | 1500 | V | Human Body Mode | 3 | |||
| Latch up | 300 | mA | 3 | ||||
| Supply voltage VIN (recommended) | VIN | 5 | 40 | V | 3 | ||
| Output voltage VOUT (adjustable) | VOUT | 0.8 | V | Adjustable from 0.8 V | 3 | ||
| Operating junction temperature | TJ | -40 | 125 | °C | 3 | ||
| Feedback voltage | VFB | 0.78 | 0.8 | 0.82 | V | TJ = -40°C to 125°C | 4 |
| Feedback voltage | VFB | 0.788 | 0.8 | 0.812 | V | TJ = 25°C | 4 |
| Current limit | ILIM | 0.8 | 1 | 1.2 | A | 4 | |
| VIN UVLO rising threshold | 4.35 | 4.6 | 4.85 | V | 4 | ||
| VIN UVLO falling threshold | 3.65 | 3.9 | 4.15 | V | 4 | ||
| Oscillator frequency | fSW | 1.6 | 2 | 2.4 | MHz | 4 | |
| Enable rising threshold | VIH | 1.62 | 1.8 | 1.98 | V | Low to high | 4 |
| Enable falling threshold | 1.395 | 1.55 | 1.705 | V | 4 |
CAD (KiCad official)
- Symbol:
DIO61845ST6 - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files:
dio61845st6-etched.step/dio61845st6-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);dio61845st6.step/dio61845st6.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: DIOO datasheet (16 pp, sha256
b0a29c81552d87be, retrieved 2026-10-17, 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).