PTH04070WAZT电源-板安装的直流转换器规格书PDF中文资料

PTH04070WAZT属于电源-板安装的直流转换器。由德州仪器制造生产的PTH04070WAZT直流转换器一种旨在将直流电压输入电平改变为一个或多个不同的直流电压输出电平的装置。

1FEATURES

· 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

· Surface Mount Package

· Safety Agency Approvals:

UL/IEC/CSA-C22.2 60950-1

APPLICATIONS

· Telecommunications, Instumentation, and General-Purpose Circuits

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.