# RT9526AGE

**Richtek Tech** · Battery Management · SOT-23-6

RT9526AGE from Richtek Tech, in a SOT-23-6. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | CHG_SB | output | Open-drain charge status indicator output; low during battery charging, high when end-of-charge or fault condition occurs. |
| 2 | GND | power_in | Ground; exposed thermal pad must be soldered to PCB ground plane for maximum power dissipation and heat sinking. |
| 3 | VIN | power_in | Supply voltage input; rated 28V maximum with over-voltage protection threshold at 7V typical. |
| 4 | BATT | output | Battery charge current output; delivers charging current to battery connected between this pin and GND. |
| 5 | ISET | input | Charge current set point; reference voltage 1.22V typical; connect external resistor RISET between this pin and GND to program charging current. |
| 6 | IMIN | input | EOC current setting; connect external resistor RIMIN between this pin and GND to program end-of-charge current threshold. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Richtek Tech |
| Package | SOT-23-6 |
| Category | Power Management (PMIC) |
| Pins | 6 |

## CAD (KiCad official)

- Symbol: `RT9526AGE`
- Footprint: `Package_TO_SOT_SMD:SOT-23-6`
- 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files: `rt9526age-etched.step` / `rt9526age-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `rt9526age.step` / `rt9526age.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Richtek Tech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590910588493520896) (13 pp, sha256 `946e0c984ffced64`, retrieved 2026-09-22, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-4-6` (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/rt9526age-datasheet.pdf)