Microchip Technology TC115
The TC115 is a high-efficiency step-up DC/DC converter for small, low input voltage or battery powered systems. This device has a start-up voltage of 0.9V and a typical supply current of 80µA. The TC115 requires only an external diode, an inductor, and a capacitor, and supports typical output currents of 140mA.| Part No. | TC115 |
|---|---|
| Datasheet | TC115 Download |
| Manufacturer |  Microchip Technology |
| Description | PFM/PWM Step-Up DC/DC Converter |
| Buy | Stock & Price |
FEATURES
● High Efficiency at Low Output Load Currents via PFM Mode● Assured Start-up at 0.9V
● 80µA (Typ) Supply Current
● 85% Typical Efficiency at 100mA
● 140mA Typical Output Current @ VIN = 2.0V
● Low Power Shutdown Mode
● No External Switching Transistor Needed
● Space Saving SOT-89 Package Package Type SOT-89-5 5 GND 4 LX TC115 NC 1 PS 2 SHDN 3
APPLICATIONS
●●
●
●
●
● Pagers Cellular Phones Palmtops 1-Cell to 3-Cell Battery Powered Systems Cameras, Video Recorders Local +3V to +5V Supplies
GENERAL DESCRIPTION
Phase compensation and soft-start circuitry are included onchip. Unlike conventional PWM step-up converters, the TC115 automatically shifts to pulse frequency modulation (PFM) at low loads, resulting in reduced supply current and improved efficiency. Supply current is reduced to less than 0.5µA, max when SHDN input is brought low. Small size, low installed cost, and low supply current make the TC115 step-up converter ideal for use in a wide range of battery powered systems.
