The TPS6229x devices are highly efficient synchronous step down DC/DC converters optimized for battery powered portable applications. They provide up to 1000-mA output current from a single Li-ion cell.
With an input voltage range of 2.3 V to 6.0 V, the devices support batteries with extended voltage range and are ideal to power portable applications like mobile phones and other portable equipment.
The TPS6229x devices operate at 2.25-MHz fixed switching frequency and enter 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 devices 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 TPS6229x devices allow the use of small inductors and capacitors to achieve a small solution size.
The TPS6229x devices operate over a free air temperature range of –40°C to 85°C. The devices are available in a 2-mm × 2-mm 6-pin WSON package (DRV).
PART NUMBER | PACKAGE | BODY SIZE (NOM) |
---|---|---|
TPS6229x | SON (6) | 2.00 mm × 2.00 mm |
Changes from F Revision (January 2016) to G Revision
Changes from E Revision (September 2015) to F Revision
Changes from D Revision (November 2009) to E Revision
PART NUMBER | OUTPUT VOLTAGE(1) | DEVICE MARKING(2) |
---|---|---|
TPS62290 | Adjustable | BYN |
TPS62291 | 3.3 V fixed | CFY |
TPS62293 | 1.8 V fixed | CFD |
PIN | TYPE | DESCRIPTION | |
---|---|---|---|
NAME | NO. | ||
EN | 4 | IN | This is the enable pin of the device. Pulling this pin to low forces the device into shutdown mode. Pulling this pin to high enables the device. This pin must be terminated. |
FB | 3 | IN | Feedback pin for the internal regulation loop. Connect the external resistor divider to this pin. In case of fixed output voltage option, connect this pin directly to the output capacitor |
GND | 6 | PWR | GND supply pin |
MODE | 2 | IN | MODE pin = High forces the device to operate in fixed-frequency PWM mode. Mode pin = Low enables the power save mode with automatic transition from PFM mode to fixed-frequency PWM mode. |
SW | 1 | OUT | This is the switch pin and is connected to the internal MOSFET switches. Connect the external inductor between this terminal and the output capacitor. |
VIN | 5 | PWR | VIN power supply pin. |
Exposed Thermal Pad | Connect the exposed thermal pad to GND. |