# TMG0265

**TM Shenzhen Titan Micro Elec** · AC-DC Controllers And Regulators · DIP-8

TMG0265 from TM Shenzhen Titan Micro Elec, in a DIP-8. 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 | FB | input | Voltage feedback pin connected to the external optocoupler; it accepts 0 to 5 V recommended (-0.3 to 6.0 V absolute maximum) and has a 6.0 kΩ input impedance. |
| 2 | VDD | power_in | Supply input with 10 to 23 V recommended (30 V absolute maximum); the IC starts above 15.5 V and shuts down below 9.5 V, with overvoltage protection at 24 V. |
| 3 | NC | unconnected | Empty (no-connect) pin, included to keep sufficient safety spacing between high-voltage and low-voltage sections. |
| 4 | DRAIN | passive | Drain of the internal power MOSFET; the device is rated for a minimum drain-source breakdown voltage of 650 V. |
| 5 | DRAIN | passive | Drain of the internal power MOSFET; the device is rated for a minimum drain-source breakdown voltage of 650 V. |
| 6 | NC | unconnected | Empty (no-connect) pin, included to keep sufficient safety spacing between high-voltage and low-voltage sections. |
| 7 | CS | input | Current-sense pin (power MOSFET source) connected to an external sense resistor; the CS input is rated -0.3 to 5.0 V. |
| 8 | GND | power_in | Ground pin for the IC, referenced to the system ground. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TM Shenzhen Titan Micro Elec |
| Package | DIP-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| VDD-ON 启动电压 | VDD-ON | 14.5 | 15.5 | 16.5 | V |  | 4 |
| VDD-OFF 关闭电压 | VDD-OFF | 8.5 | 9.5 | 10.5 | V |  | 4 |
| IDD-ST 启动电流 | IDD-ST |  | 5 | 20 | uA | VDD=VDD-ON- 0.5V | 4 |
| IDD-OP 正常工作电流 | IDD-OP |  | 2.5 | 4 | mA |  | 4 |
| VDD 过压保护 | VDD-OVP |  | 23 | 24 | V |  | 4 |
| VDD 钳位电压 | VDD-CLAMP |  | 25 | 27 | V | IDD=5mA | 4 |
| FB 开路电压 | VFB-OPEN | 4.2 | 4.7 | 5.2 | V |  | 4 |
| 电流限流值（峰值） | VCSTH-H |  | 1 | 1.1 | V |  | 4 |
| 电流限制值（谷值） | VCSTH-L |  | 0.7 | 0.8 | V |  | 4 |
| 振荡频率 | fOSC | 63 | 67 | 71 | KHz |  | 5 |
| 抖频范围 | f△SHUFFLING | -6 |  | 6 | % |  | 5 |
| 频偏 VS VDD 电压 | fDV |  | 0.2 | 1 | % | VDD=10V to 23V | 5 |
| 最大占空比 | DMAX | 75 | 80 | 85 | % |  | 5 |
| 漏源击穿电压 | BVDSS | 650 |  |  | V | VGS=0V, ID=250uA | 5 |
| 漏源漏电流 | IDSS |  |  | 100 | uA | VGS=0V, VDS=650V | 5 |
| 导通电阻 (TMG0265) | RDS-ON |  | 4.7 | 5.5 | Ω | ID=2A，VGS=10V | 5 |
| 过载延时时间 | TPD |  | 50 |  | ms |  | 4 |
| 过载 FB 电压阀值 | VFB-PL |  | 3.7 |  | V |  | 4 |
| 进入跳周期模式 FB 电压 | VFB-BM |  | 1.4 |  | V | 进入跳周期模式 | 4 |
| 跳周期模式电压 | VDD-BM |  | 10.6 |  | V |  | 4 |
| PWM 比较器增益 | AV |  | 1.7 |  | V/V |  | 4 |
| FB 引脚输入阻抗 | ZFB |  | 6 |  | KΩ |  | 4 |
| CS 引脚输入阻抗 | ZCS |  | 5 |  | KΩ |  | 4 |
| 前沿尖峰消隐时间 | TLEB |  | 350 |  | ns |  | 4 |
| 过流保护延时时间 | TPD |  | 60 |  | ns |  | 4 |
| 跳周期振荡频率 | fOSC-BM |  | 20 |  | KHz |  | 5 |
| 过温保护温度 | TOTP |  | 130 |  | °C |  | 5 |
| VDD 供电电压（推荐值） | VDD | 10 |  | 23 | V |  | 3 |
| VDD 供电电压（极限值） | VDD |  |  | 30 | V |  | 3 |
| FB 引脚输入电压（推荐值） | VFB | 0 |  | 5 | V |  | 3 |
| FB 引脚输入电压（极限值） | VFB | -0.3 |  | 6 | V |  | 3 |
| CS 引脚输入电压（极限值） | VCS | -0.3 |  | 5 | V |  | 3 |
| 热阻(结点到外壳) | θJC |  | 82.5 |  | °C/W |  | 3 |
| 工作结点温度 | TJ | -40 |  | 150 | °C |  | 3 |
| 工作环境温度 | TA | -40 |  | 85 | °C |  | 3 |
| 存储温度范围 | TSTG | -40 |  | 150 | °C |  | 3 |
| 焊接温度 | TL |  |  | 260 | °C | 10 s | 3 |

## CAD (KiCad official)

- Symbol: `TMG0265`
- Footprint: `Package_DIP:DIP-8_W7.62mm`
- 3D model: DIP-8 (KiCad packages3D, STEP)
- 3D model files: `tmg0265-etched.step` / `tmg0265-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tmg0265.step` / `tmg0265.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [TM Shenzhen Titan Micro Elec datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590440927803174912) (10 pp, sha256 `217965200a124db5`, retrieved 2026-10-16, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **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/tmg0265-datasheet.pdf)