# PT7M7433TAEX

**Diodes Incorporated** · Monitors & Reset Circuits · SOT-23-5

PT7M7433TAEX from Diodes Incorporated, in a SOT-23-5. 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 | HTHIN | input | HTH threshold monitor input; a resistor-divider network sets the high threshold (615mV internal reference) associated with LBO/LBO. |
| 2 | GND | power_in | Ground reference pin for the device. |
| 3 | LTHIN | input | LTH threshold monitor input; a resistor-divider network sets the low threshold, and LBO is asserted when LTHIN falls below 615mV. |
| 4 | LBO | output | Low-battery output, asserted when LTHIN drops below VLTHIN and kept asserted for at least 90ms after HTHIN rises above VHTHIN; push-pull output for PT7M7433. |
| 5 | VCC | power_in | Supply voltage pin providing device power for the adjustable threshold versions, with an operating voltage range of 1.8V to 5.5V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SOT-23-5 |
| Category | Power Management ICs |
| Pins | 5 |

## Electrical characteristics

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

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Operating Voltage Range | VCC | 1.8 |  | 5.5 | V | TA= -40~85ºC | 3 |
| VCC Supply Current | ICC |  | 1.5 | 2.5 | μA | VCC = 3.7V, no load TA= -40~85ºC | 3 |
| Output Low Voltage | VOL |  |  | 0.3 | V | VCC ≥ 1.6V, Isink = 100μA | 3 |
| Output Low Voltage | VOL |  |  | 0.4 | V | VCC ≥ 4.5V, Isink = 3.2mA | 3 |
| Open-Drain Output Leakage Current | ILKG |  |  | 1 | μA |  | 3 |
| Input Leakage Current | ILKG |  |  | 20 | nA | VHTHIN or VLTHIN > 400mV | 3 |
| HTHIN Threshold | VHTHIN | -1.5 |  | 1.5 | % | HTHIN rising, LBO is deasserted when HTHIN rises above 615mV; TA= 25ºC | 3 |
| HTHIN Threshold | VHTHIN | -2.5 |  | -2.5 | % | HTHIN rising, LBO is deasserted when HTHIN rises above 615mV; TA= -30~70ºC | 3 |
| LTHIN Threshold | VLTHIN | -1.5 |  | 1.5 | % | LTHIN falling, LBO is asserted when LTHIN falls below 615mV; TA= 25ºC | 3 |
| LTHIN Threshold | VLTHIN | -2.5 |  | -2.5 | % | LTHIN falling, LBO is asserted when LTHIN falls below 615mV; TA= -30~70ºC | 3 |
| Timeout period | tLBOP | 90 | 200 | 350 | ms | VCC =1.8V to 5.5V, TA= -40~85ºC | 3 |
| Delay | tLBOD |  | 70 |  | s | VCC =1.8V to 5.5V, TA= -40~85ºC | 3 |
| Supply Voltage to Ground Potential (Vcc to GND) | VCC | -0.3 |  | 7 | V |  | 2 |
| Storage Temperature |  | -65 |  | 150 | oC |  | 2 |
| Ambient Temperature with Power Applied |  | -40 |  | 85 | oC |  | 2 |
| DC Output Current (All outputs) |  |  |  | 20 | mA |  | 2 |
| Power Dissipation |  |  |  | 320 | mW | Depend on package | 2 |

## CAD (KiCad official)

- Symbol: `PT7M7433TAEX`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `pt7m7433taex-etched.step` / `pt7m7433taex-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `pt7m7433taex.step` / `pt7m7433taex.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Diodes Incorporated datasheet](docs/pt7m7433taex-datasheet.pdf) (7 pp, sha256 `f8b9e79ccfe2a8c1`, retrieved 2026-11-02, 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/pt7m7433taex-datasheet.pdf)