PTH04070WAZ 3-A, 3.3/5-V INPUT ADJUSTABLE SWITCHING REGULATOR electronic chip board

3-A, 3.3/5-V INPUT ADJUSTABLE SWITCHING REGULATOR

APPLICATIONS

• Telecommunications, Instumentation,and General-Purpose Circuits

FEATURES

• Up to 3-A Output Current at 85°C

• 3.3-V / 5-V Input Voltage

• Wide-Output Voltage Adjust (0.9 V to 3.6 V)

• 160 W/in3 Power Density

• Efficiencies Up To 94%

• On/Off Inhibit

• Undervoltage Lockout (UVLO)

• Output Overcurrent Protection (Nonlatching, Auto-Reset)

• Overtemperature Protection

• Ambient Temp. Range: –40°C to 85°C

DESCRIPTION

The PTH04070W is a highly integrated, low-cost switching regulator module that delivers up to 3 A of output current. Occupying less PCB area than a standard TO-220 linear regulator IC, the PTH04070W provides output current at a much higher efficiency and with much less power dissipation, thereby eliminating the need for a heat sink. Their small size (0.5 × 0.4 in), high efficiency, and low cost makes these modules attractive for a variety of applications.

The input voltage range of the PTH04070W is from 3 V to 5.5 V, allowing operation from either a 3.3-V or 5-V input bus. Using state-of-the-art switched-mode power-conversion technology, the PTH04070W can step down to voltages as low as 0.9 V from a 5-V input bus, with typically less than 1 W of power dissipation. The output voltage can be adjusted to any voltage over the range, 0.9 V to 3.6 V, using a single external resistor. Operating features include an undervoltage lockout (UVLO), on/off inhibit, output overcurrent protection, and overtemperature protection. Target applications include telecommunications, test and measurement applications, and high-end consumer products. The modules are available in both through-hole and surface-mount package options, including tape and reel.

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