The TPS6226x device is a highly efficient synchronous step-down DC/DC converter. The TPS6226x provides up to 600-mA output current from a single Li-Ion cell, and is ideal for battery-powered applications such as mobile phones and other portable equipment.
With an wide input voltage range of 2 V to 6 V, the device also supports two- and three-cell alkaline batteries, 3.3-V and 5-V input voltage rails.
The TPS6226x operates at 2.25-MHz fixed-switching frequency, and enters power save mode operation at light load currents to maintain high efficiency over the entire load current range.
The power save mode is optimized for low-output voltage ripple. For low noise applications, the device can be forced into fixed frequency pulse-width modulation (PWM) mode by pulling the MODE pin high. In the shutdown mode, the current consumption is reduced to less than 1 µA. The TPS6226x allows the use of small inductors and capacitors to achieve a small solution size.
The TPS6226x operates over a free air temperature range of 40°C to 85°C. It is available in a 5-pin SOT and a 6-pin 2-mm × 2-mm WSON package.
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| Vin (min) (V) | 2 |
| Vin (max) (V) | 6 |
| Vout (min) (V) | 1.2 |
| Vout (max) (V) | 1.2 |
| Iout (max) (A) | 0.6 |
| Iq (typ) (mA) | 0.015 |
| Switching frequency (min) (kHz) | 2000 |
| Switching frequency (max) (kHz) | 2500 |
| Features | Enable, Forced PWM, Light load efficiency, Synchronous Rectification |
| Operating temperature range (°C) | -40 to 85 |
| Rating | Catalog |
| Regulated outputs (#) | 1 |
| Control mode | Voltage mode |
| Duty cycle (max) (%) | 100 |
| Type | Converter |
| SOT-23-THN (DDC) | 5 | 8.12 mm² 2.9 x 2.8 |
| WSON (DRV) | 6 | 4 mm² 2 x 2 |