# AP3772BK6TR-G1-2

**Diodes Incorporated** · AC-DC Controllers And Regulators · SOT-23-6

AP3772BK6TR-G1-2 from Diodes Incorporated, in a SOT-23-6. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model). Symbol and footprint from KiCad-official CAD; the 3D model is generated from the datasheet's package dimensions.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | OUT | output | Drives the base of the power BJT: it sources 30mA (typical, 24-40mA) to turn the switch on, presents about 5Ω between OUT and GND when turning off, and sinks 330mA typical (150-500mA) with 1V applied. |
| 2 | GND | power_in | Ground of the IC; when the power BJT turns off, a fast reverse sinking current flows out of this pin into the BJT gate, so PCB layout must be given attention here. |
| 3 | VCC | power_in | Supplies power to the IC, with absolute maximum rating of -0.3 to 30V and a 15.5V typical startup threshold (13-18V); a low-ESR capacitor should be placed as close as possible to this pin. |
| 4 | CS | input | Current-sense input on which the IC bases turn-off of the power BJT, with a current sense threshold of 525mV typical (500-550mV) at heavy load and an absolute maximum of -0.3 to 7V; during BJT on-time a current proportional to line voltage is output from this pin for line compensation. |
| 5 | CPC | passive | A capacitor greater than 10nF must be connected to this pin, whose voltage is linear to system load and used for cable voltage drop compensation and audio noise suppression, with an absolute maximum of -0.3 to 7V. |
| 6 | FB | input | Voltage sampling input for constant-voltage and constant-current regulation, with a feedback threshold of 4.04V typical (3.98-4.1V), 1.6MΩ typical input resistance, and an absolute maximum input voltage of -40 to 10V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| 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 |
|---|---|---|---|---|---|---|---|
| Startup Threshold | VTH (ST) | 13 | 15.5 | 18 | V | VCC=15V, TA=25°C | 5 |
| Minimal Operating Voltage | VOPR(MIN) | 3 | 3.5 | 6.5 | V | VCC=15V, TA=25°C | 5 |
| Startup Current | IST | 0 | 0.2 | 0.6 | µA | VCC=VTH (ST)-1V, Before startup | 5 |
| Operating Current | ICC(OPR) | 250 | 500 | 600 | µA | Static current | 5 |
| Output Sink Current | ISINK | 150 | 330 | 500 | mA | Apply 1V @OUT pin | 5 |
| Output Source Current | ISOURCE | 24 | 30 | 40 | mA |  | 5 |
| Maximum Off Time | tOFF(MAX) |  | 18 |  | ms |  | 5 |
| Current Sense Threshold Voltage at Heavy Load | VCS1 | 500 | 525 | 550 | mV |  | 5 |
| Leading Edge Blanking | tLEB | 300 | 500 | 650 | ns | The minimum power switch turn on time | 5 |
| Input Resistance of FB Pin | RFB | 1 | 1.6 | 2 | MΩ | VFB=4V | 5 |
| Feedback Threshold | VFB | 3.98 | 4.04 | 4.1 | V |  | 5 |
| Line Compensation Current | ILINE |  | 6 |  | µA | VFB=-5V | 5 |
| Cable Compensation Voltage (AP3772B) | ΔVFB_CABLE/VFB | 2 | 3 | 4 | % | AP3772B | 5 |
| Delay Time for Dynamic Function | tD | 110 | 150 | 200 | µs |  | 5 |
| Trigger Voltage for Dynamic Function | VTRIGGER | 120 | 150 | 180 | mV |  | 5 |
| Over Voltage Protection | VFB(OVP) | 7 | 8 | 9 | V |  | 5 |
| Maximum On Time of Primary Side | tonp(MAX) | 14 | 18 | 30 | µs |  | 5 |
| Supply Voltage | VCC | -0.3 |  | 30 | V |  | 4 |
| CS, CPC to GND |  | -0.3 |  | 7 | V |  | 4 |
| FB Input Voltage | VFB | -40 |  | 10 | V |  | 4 |
| Operating Junction Temperature | TJ |  |  | 150 | ºC |  | 4 |
| Storage Temperature | TSTG | -65 |  | 150 | ºC |  | 4 |
| Lead Temperature | TLEAD |  |  | 300 | ºC | Soldering, 10 sec | 4 |
| Thermal Resistance (Junction to Ambient) | θJA |  | 200 |  | ºC/W |  | 4 |
| Operating Temperature Range |  | -40 |  | 85 | °C | Ordering information temperature range | 4 |

## CAD (land: KiCad; 3D: generated from the datasheet)

- Symbol: `AP3772BK6TR-G1-2`
- Footprint: `Package_TO_SOT_SMD:SOT-23-6`
- 3D model: SOT-23-6, generated on the KiCad land (body 1.6 x 2.92 mm, terminals on the pads, 1.45 mm tall, datasheet A, max). KiCad's stock model for this land is taller than the datasheet allows, so the model is generated from the datasheet drawing; the dimensions come from the datasheet drawing where it was read and are defaults otherwise (see provenance.model_3d_generated), not the manufacturer's CAD (STEP)
- 3D model files: `ap3772bk6tr-g1-2-etched.step` / `ap3772bk6tr-g1-2-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ap3772bk6tr-g1-2.step` / `ap3772bk6tr-g1-2.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Diodes Incorporated datasheet](docs/ap3772bk6tr-g1-2-datasheet.pdf) (12 pp, sha256 `baed3df59acf051f`, retrieved 2026-11-13, 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:** land: KiCad official libraries (CC-BY-SA 4.0); 3D: generated from the datasheet's package dimensions (provenance.model_3d_generated).

[Datasheet PDF](docs/ap3772bk6tr-g1-2-datasheet.pdf)