Texas Instruments TPS62700
The TPS6270x device is a high-efficiency synchronous step-down DC-DC converter optimized for RF power-amplifier (PA) applications. It provides up to 650 mA of output current from a single Li-Ion cell. The device converts input voltages from 2.5 to 6.0 V down to an output voltage set by an external analog reference voltage applied to the pin VCON.| Part No. | TPS62700 |
|---|---|
| Datasheet | TPS62700 Download |
| Manufacturer |  Texas Instruments |
| Description | 2MHz 650mA Step Down Converter |
| Buy | Stock & Price |
FEATURES
1● High-Efficiency Step-Down Converter
● Output Current up to 650 mA
● VIN Range From 2.5 to 6.0 V
● 2.0-MHz Fixed-Frequency Operation
● Clock Dithering (TPS62701)
● Dynamic Voltage Control With External Reference (1.3 V to 3.09 V)
● Fast Output-Voltage Settling (1.3 V to 3.09 V in 20 µs)
● Soft Start
● Overload Protection
● Undervoltage Lockout
● Thermal Protection
● 8-Pin WCSP Package
APPLICATIONS
● Cell Phones, Smart Phones● Battery-Powered RF Amplifier
DESCRIPTION
The output voltage follows the external reference by an internal gain of 2.5 within the limits of 1.3 V to 3.09 V. This scheme adjusts the output voltage of the DC/DC converter and therefore the output power of an RF-PA. The TPS6270x operates in fixed-frequency PWM mode at a 2.0-MHz switching frequency to minimize RF interference. This converter operates with only three small external components; an input capacitor, inductor and output capacitor. The TPS62701 has in addition a built-in clock-dithering circuit to reduce RF noise.
