ALSO OPERATES IN PFM MODE; ADJUSTABLE OUTPUT VOLTAGE IS 1.8V TO 3.3V
Analog IC - Other Type:
SWITCHING REGULATOR
Control Mode:
VOLTAGE-MODE
Control Technique:
PULSE WIDTH MODULATION
Input Voltage-Max:
5.5 V
Input Voltage-Min:
1.8 V
Input Voltage-Nom:
3.6 V
JESD-30 Code:
R-XBGA-B6
Length:
1.054 mm
Moisture Sensitivity Level:
1
Number of Functions:
1
Number of Terminals:
6
Operating Temperature-Max:
125 °C
Operating Temperature-Min:
-40 °C
Output Current-Max:
1 A
Output Voltage-Min:
1.8 V
Output Voltage-Nom:
1.8 V
Package Body Material:
UNSPECIFIED
Package Code:
VFBGA
Package Equivalence Code:
BGA6,2X3,14
Package Shape:
RECTANGULAR
Package Style:
GRID ARRAY, VERY THIN PROFILE, FINE PITCH
Peak Reflow Temperature (Cel):
260
Seated Height-Max:
0.4 mm
Surface Mount:
YES
Switcher Configuration:
BUCK
Switching Frequency-Max:
1500 kHz
Technology:
BICMOS
Temperature Grade:
AUTOMOTIVE
Terminal Form:
BALL
Terminal Pitch:
0.35 mm
Terminal Position:
BOTTOM
Time@Peak Reflow Temperature-Max (s):
30
Width:
0.704 mm
TPS62808YKAT Frequently Asked Questions (FAQs)
Texas Instruments provides a recommended PCB layout in the TPS62808YKAT datasheet, but it's also recommended to follow general high-frequency PCB design guidelines, such as using a solid ground plane, minimizing trace lengths, and using a 4-layer stackup with a dedicated power plane.
The output capacitor selection depends on the output voltage, output current, and desired output ripple. A general rule of thumb is to choose a capacitor with a capacitance value of at least 10uF and a voltage rating of at least 1.5 times the output voltage. Additionally, consider the capacitor's ESR and ESL to ensure it can handle the switching frequency.
While the datasheet specifies a maximum input voltage of 5.5V, it's recommended to derate the input voltage to 5V or lower to ensure reliable operation and prevent damage to the device.
To ensure stability, follow the recommended component values and PCB layout guidelines. Additionally, make sure to decouple the input and output pins with suitable capacitors, and consider adding a small ceramic capacitor (e.g., 10nF) between the VIN and GND pins to filter out high-frequency noise.
The thermal derating of the TPS62808YKAT is specified in the datasheet. To calculate the maximum ambient temperature, use the formula: T_A(max) = T_J(max) - (P_D(max) x R_θJA), where T_A(max) is the maximum ambient temperature, T_J(max) is the maximum junction temperature, P_D(max) is the maximum power dissipation, and R_θJA is the junction-to-ambient thermal resistance.
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TPS62808YKAT Overview
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About Texas Instruments
Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.
