AAT3340 Description
The AAT3340 is a low-noise, constant-frequency charge pump DC/DC converter that uses a dual-mode load switch (1x) and fractional (1.5x) conversion to maximize efficiency for white LED applications. The AAT3340 is capable of driving 4 white LEDs at a total of 80mA from a single 2.7V to 5.5V input. The current sinks may be operated individually or in parallel while driving higher-current LEDs.
AAT3340 Key Features
- Dual-Mode (1x/1.5x) Charge Pump
- Drives up to 4-Channel Backlight LEDs
- 32-Level Programmable Backlight Current (linear
- Single-wire S2Cwire Control
- Built-in Thermal Protection
- Automatic Soft Start
- 40°C to +85°C Temperature Range
- TSOPJW-12 and TDFN33-12 Packages