AAT AAT3169
The AAT3169 is a low noise, constant frequency charge pump DC/DC converter that uses a tri-mode load switch (1X), fractional (1.5X), and doubling (2X) conversion to maximize efficiency for white LED applications. The AAT3169 is capable of driving six LEDs for a total of 180mA from a 2.7V to 5.5V input. The current sinks may be operated individually or in parallel for driving higher current LEDs.- Min Voltage : 2.7V
- Max Voltage : 5.5V
- Max Operating Temp : 85°C
- Min Operating Temp : -40°C
Source:
Octopart
| Part No. | AAT3169 |
|---|---|
| Datasheet | AAT3169 Download |
| Manufacturer |  AAT |
| Description | High Efficiency 1X/1.5X/2X Charge Pump |
| Buy | Stock & Price |
APPLICATIONS
GENERAL DESCRIPTION
A low external parts count (two 1µF flying capacitors and two small 1µF capacitors at IN and OUTCP) make this part ideally suited for small, battery-powered applications. AnalogicTech's AS2Cwire™ (Advanced Simple Serial Control™) serial digital input is used to enable, disable, and set current for each LED with a 16-level logarithmic scale plus four low-current settings down to 115µA. For optimized efficiency, low-current settings require only 65µA of housekeeping current. AAT3169FEATURES
●● ChargePump™
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● Each output of the AAT3169 is equipped with builtin protection for output short-circuit and auto-disable for load short-circuit conditions. Built-in softwww.DataSheet4U.com start circuitry prevents excessive inrush current during start-up. A low-current shutdown feature disApplications connects the load from the input and reduces quiescent current to less than 1µA.
● Color (RGB) Lighting
● Programmable Current Sink The AAT3169 is...
