SLVAFH3 December   2022 TPS6213013A-Q1 , TPS62130A-Q1 , TPS62133A-Q1 , TPS62150A-Q1 , TPS62152A-Q1 , TPS62153A-Q1 , TPS62901-Q1 , TPS62902-Q1 , TPS62903-Q1 , TPS62992-Q1 , TPS62993-Q1

 

  1.   Abstract
  2.   Trademarks
  3. 1Introduction
  4. 2Achieving a Smaller Solution
    1. 2.1 Smaller Package and Fewer External Components
    2. 2.2 Smart Configuration Pin
    3. 2.3 VSET
  5. 3Reducing Power Loss
    1. 3.1 Junction Temperature
    2. 3.2 Automatic Efficiency Enhancement (AEE)
    3. 3.3 Quiescent Current
    4. 3.4 Auto PFM/PWM vs. Forced PWM
  6. 4Application Flexibility
    1. 4.1 1.0 MHz and 2.5 MHz Switching Frequencies
    2. 4.2 Lower and More Accurate Output Voltages
    3. 4.3 Output Voltage Discharge
    4. 4.4 Wettable Flanks
  7. 5Summary
  8. 6References

2.3 VSET

The MODE/S-CONF pin along with the FB/VSET pin, can be used to save additional resistors when setting the output voltage. Typically, to set the output voltage, a resistor divider is used on the feedback pin. The advantage of using the resistor divider is you are able to choose any output value in the output voltage range. Both the TPS621x0A-Q1 and TPS629xx-Q1 have the ability to use a resistor divider to configure the output voltage. Standard voltage rails similar to 1.2 V and 3.3 V are often used in point-of-load applications, so TPS629xx-Q1 has added the ability to select an output voltage setting from one of 16 common options through the VSET function. These values vary from 0.4 V to 5.5 V. If one of those preset output voltages is desired for a design, the VSET function can be used to save one or even both resistors (if left floating or tied to GND) when configuring the output voltage, as shown in Figure 2-4.

Figure 2-4 Configuration for the Smallest Solution Size Using TPS629xx-Q1