ALSO OPERATES IN PFM MODE; ALSO HAS 3.4V, 7V, 8.85V AND 10V
Analog IC - Other Type:
DUAL SWITCHING CONTROLLER
Control Mode:
CURRENT/VOLTAGE-MODE
Control Technique:
PULSE WIDTH MODULATION
Input Voltage-Max:
40 V
Input Voltage-Min:
2 V
Input Voltage-Nom:
13 V
JESD-30 Code:
R-PDSO-G38
JESD-609 Code:
e4
Length:
12.5 mm
Moisture Sensitivity Level:
3
Number of Functions:
1
Number of Outputs:
3
Number of Terminals:
38
Operating Temperature-Max:
125 °C
Operating Temperature-Min:
-40 °C
Output Current-Max:
6 A
Output Voltage-Max:
10 V
Output Voltage-Min:
1.235 V
Output Voltage-Nom:
1.235 V
Package Body Material:
PLASTIC/EPOXY
Package Code:
HTSSOP
Package Equivalence Code:
TSSOP38,.32
Package Shape:
RECTANGULAR
Package Style:
SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Cel):
260
Qualification Status:
Not Qualified
Screening Level:
AEC-Q100
Seated Height-Max:
1.2 mm
Surface Mount:
YES
Switcher Configuration:
BUCK-BOOST
Switching Frequency-Max:
600 kHz
Technology:
BICMOS
Temperature Grade:
AUTOMOTIVE
Terminal Finish:
Nickel/Palladium/Gold (Ni/Pd/Au)
Terminal Form:
GULL WING
Terminal Pitch:
0.65 mm
Terminal Position:
DUAL
Time@Peak Reflow Temperature-Max (s):
30
Width:
6.1 mm
TPS43337QDAPRQ1 Frequently Asked Questions (FAQs)
Texas Instruments provides a recommended PCB layout in the datasheet, but it's essential to follow good PCB design practices, such as keeping the input and output capacitors close to the IC, using a solid ground plane, and minimizing trace lengths and widths to reduce parasitic inductance and capacitance.
To ensure stability, follow the recommended component values and PCB layout, and make sure the output capacitor is properly sized and placed. Additionally, consider adding a small series resistor (e.g., 1-2 ohms) between the output capacitor and the load to dampen oscillations.
Although the datasheet specifies a maximum input voltage of 5.5V, it's recommended to limit the input voltage to 5V or less to ensure reliable operation and prevent damage to the internal components.
While ceramic capacitors can be used, they may not be the best choice due to their potential for resonant frequency issues. X5R or X7R ceramic capacitors are acceptable, but film capacitors (e.g., polyester or polypropylene) are generally recommended for the output filter due to their more stable characteristics.
The output voltage ripple can be estimated using the formula: ΔVout = (Iout * ESL) / (Cout * fsw), where ESL is the equivalent series inductance of the output capacitor, Cout is the output capacitance, and fsw is the switching frequency. A lower output voltage ripple can be achieved by increasing the output capacitance or reducing the ESL.
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TPS43337QDAPRQ1 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.
