# IL2576-ADJD2T-P

**IKSEMICON** · DC-DC Converters · TO-263-5

IL2576-ADJD2T-P from IKSEMICON, in a TO-263-5. 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 | Vin | power_in | Unregulated input supply pin, rated to 45 V absolute maximum and 40 V as the operating supply voltage limit. |
| 2 | Output | output | Internal power switch output that sources up to 3.0 A load current and must not be driven below -1.0 V to ground in steady state. |
| 3 | Ground | power_in | Ground reference pin for the regulator, which is bootstrapped to the negative output in buck-boost configurations. |
| 4 | Feedback | input | Feedback input that senses the output voltage; for the adjustable version it sets the output via Vref = 1.23 V, with a 1.23 V to 37 V output range and a bias current of up to 500 nA. |
| 5 | ON/OFF | input | Shutdown control input that enables the regulator with a logic low and disables it with a logic high, with its input voltage limited to -0.3 V up to Vin. |
| 6 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | IKSEMICON |
| Package | TO-263-5 |
| Category | Power Management ICs |
| 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 |
|---|---|---|---|---|---|---|---|
| Feedback Voltage | Vout | 1.217 |  | 1.243 | V | Vin = 12 V, ILoad = 0.5 A, Vout = 5.0 V, TJ = 25°C | 3 |
| Feedback Voltage | Vout | 1.193 |  | 1.267 | V | 8.0 V ≤ Vin ≤ 40 V, 0.5 A ≤ ILoad ≤ 3.0 A, Vout = 5.0 V, TJ = 25°C | 3 |
| Feedback Voltage | Vout | 1.18 |  | 1.28 | V | 8.0 V ≤ Vin ≤ 40 V, 0.5 A ≤ ILoad ≤ 3.0 A, Vout = 5.0 V, TJ = -40 to +125°C | 3 |
| Efficiency |  | 67 |  |  | % | Vin = 12 V, ILoad = 3.0 A, Vout = 5.0 V | 3 |
| Feedback Bias Current | Ib |  |  | 100 | nA | Vout = 5.0 V (Adjustable Version Only), TJ = 25°C | 4 |
| Feedback Bias Current | Ib |  |  | 500 | nA | Vout = 5.0 V (Adjustable Version Only), TJ = -40 to +125°C | 4 |
| Oscillator Frequency | fosc | 42 |  | 63 | kHz | TJ = -40 to +125°C | 4 |
| Max Duty Cycle (on) | DC | 93 |  |  | % |  | 4 |
| Current Limit (Peak Current) | ICL | 4.2 |  | 6.9 | A | TJ = 25°C | 4 |
| Current Limit (Peak Current) | ICL | 3.5 |  | 7.5 | A | TJ = -40 to +125°C | 4 |
| Saturation Voltage | Vsat |  |  | 1.8 | V | Iout = 3.0 A, TJ = 25°C | 4 |
| Saturation Voltage | Vsat |  |  | 2 | V | Iout = 3.0 A, TJ = -40 to +125°C | 4 |
| Output Leakage Current | IL |  |  | 2 | mA | Output = 0 V, TJ = 25°C | 4 |
| Output Leakage Current | IL |  |  | 30 | mA | Output = -1.0 V, TJ = 25°C | 4 |
| Quiescent Current | IQ |  |  | 10 | mA | TJ = 25°C | 4 |
| Quiescent Current | IQ |  |  | 11 | mA | TJ = -40 to +125°C | 4 |
| Standby Quiescent Current | Istby |  |  | 200 | uA | ON/OFF Pin = 5.0 V (off), TJ = 25°C | 4 |
| ON/OFF Pin Logic Input Level High | VIH | 2.2 |  |  | V | TJ = 25°C | 4 |
| ON/OFF Pin Logic Input Level High | VIH | 2.4 |  |  | V | TJ = -40 to +125°C | 4 |
| ON/OFF Pin Logic Input Level Low | VIL |  |  | 1 | V | TJ = 25°C | 4 |
| ON/OFF Pin Logic Input Level Low | VIL |  |  | 0.8 | V | TJ = -40 to +125°C | 4 |
| ON/OFF Pin Input Current High | IIH |  |  | 30 | uA | ON/OFF Pin = 5.0 V (off), TJ = 25°C | 4 |
| ON/OFF Pin Input Current Low | IIL |  |  | 10 | uA | ON/OFF Pin = 0 V (on), TJ = 25°C | 4 |
| Operating Junction Temperature Range | TJ | -40 |  | 125 | °C |  | 3 |
| Supply Voltage | Vin |  |  | 40 | V |  | 3 |
| Maximum Supply Voltage | Vin |  |  | 45 | V |  | 2 |
| ON/OFF Pin Input Voltage | V | -0.3 |  |  | V | Upper limit +Vin (not a numeric value) | 2 |
| Output Voltage to Ground (Steady-State) |  | -1 |  |  | V |  | 2 |
| Storage Temperature Range | Tstg | -65 |  | 150 | °C |  | 2 |
| Minimum ESD Rating (Human Body Model) |  | 2 |  |  | kV | Human Body Model: C = 100 pF, R = 1.5 kΩ | 2 |
| Lead Temperature (Soldering, 10 seconds) |  |  |  | 260 | °C | 10 seconds | 2 |
| Maximum Junction Temperature | TJ |  |  | 150 | °C |  | 2 |
| Thermal Resistance, Junction-to-Ambient (TO-263, 5-Lead D2PAK) | RθJA |  | 70 |  | °C/W | TO-263, 5-Lead (D2PAK) | 2 |
| Thermal Resistance, Junction-to-Case (TO-263, 5-Lead D2PAK) | RθJC |  | 5 |  | °C/W | TO-263, 5-Lead (D2PAK) | 2 |

## CAD (KiCad official)

- Symbol: `IL2576-ADJD2T-P`
- Footprint: `Package_TO_SOT_SMD:TO-263-5_TabPin6`
- 3D model: TO-263-5 (KiCad packages3D, STEP)
- 3D model files: `il2576-adjd2t-p-etched.step` / `il2576-adjd2t-p-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `il2576-adjd2t-p.step` / `il2576-adjd2t-p.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [IKSEMICON datasheet](docs/il2576-adjd2t-p-datasheet.pdf) (10 pp, sha256 `3613c6556a860980`, retrieved 2026-11-05, 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/il2576-adjd2t-p-datasheet.pdf)