TEA1211HN is a high efficiency auto-up/down DC/DC converter from Philips Semiconductors. It features high efficiency, low noise, low power consumption and is suitable for a variety of battery powered portable devices.
The Philips TEA1211HN is a fully integrated auto-up/down DC/DC converter circuit featuring an I2C-bus interface for programmable output voltage. It utilizes a digitally controlled pulse width and frequency modulation scheme to achieve high efficiency, making it suitable for powering amplifiers in cellular phones and other hand-held instruments. The device operates at a 600 kHz switching frequency and includes four integrated low Rds(on) power MOSFETs with fully synchronous rectification.
| Input voltage range | 2.55 V to 5.5 V |
|---|---|
| Maximum input and output current | 1.7 A |
| Switching frequency | 600 kHz |
| Package type | HVQFN32 |
| Package dimensions | 5 x 5 x 0.85 mm |
| Efficiency | up to 94 % |
Yes, the switching frequency can be locked to an external high frequency clock.
The device supports a maximum input and output current of 1.7 A.
The TEA1211HN operates at a switching frequency of 600 kHz.