AAT AAT3119
The AAT3119 is a general purpose high efficiency voltage regulated charge pump IC that can produce output current levels up to 150mA. The voltage doubling charge pump architecture of the AAT3119 provides for a low external part count; just three small ceramic capacitors are needed. This makes the AAT3119 ideally suited for small battery-powered applications.| Part No. | AAT3119 |
|---|---|
| Datasheet | AAT3119 Download |
| Manufacturer |  AAT |
| Description | High Efficiency 2X Charge Pump |
| Buy | Stock & Price |
GENERAL DESCRIPTION
As a voltage regulated output device, it may be used for general voltage boost applications or to power white, RGB, or flash type LEDs from a 2.7V to 5.5V input. This device operates from a fixed high frequency 1.2MHz oscillator which enables the use of very small external capacitors, one 1μF flying capacitor, and two 1μF bypass capacitors at IN and OUT. AAT3119FEATURES
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● ChargePump™ VIN Range: 2.7V to 5.5V 150mA of Output Current — Peak Current up to 250mA Regulated Output Voltage 1.2MHz Switching Frequency Low Noise Constant Frequency Operation <1.0μA of Shutdown Current Automatic Soft Start Small Application Circuit Inductorless Boost 8-Pin SC70JW Package -40°C to +85°C Temperature Range The AAT3119 has built-in soft-start circuitry which prevents excessive inrush current from the source
● supply during startup. A low-current shutdown fea● ture disconnects the load from VIN and reduces
● quiescent current to less than 1.0μA when the
● device is disabled.
