特性 Features

? Up to 30-A Output Current

? 3.3-V Input Voltage

? Wide-Output Voltage Adjust

(0.8 V to 2.5 V)

? 135 W/in3 Power Density

? Efficiencies up to 93 %

? On/Off Inhibit

? Pre-Bias Startup

? Margin Up/Down Controls

? Under-Voltage Lockout

? Auto-Track? Sequencing

? Output Over-Current Protection

(Non-Latching, Auto-Reset)

? Operating Temp: –40 to +85 °C

? Over-Temperature Shutdown

? Safety Agency Approvals:

UL 1950, CSA 22.2 950, EN60950

VDE (Pending)

? Point-of-Load Alliance (POLA)

Compatible

描述 Description

The PTH03030 is a series of highcurrent

non-isolated power modules

from Texas Instruments. The product is

characterized by high efficiencies, and

up to 30 A of output current, while occupying

a mere 1.64 in2 of PCB area. In

terms of cost, size, and performance, the

series provides OEM’s with a flexible

module that meets the requirements of

the most complex and demanding mixedsignal

applications. These include the

most densly populated, multi-processor

systems that incorporate high-speed

DSP’s, microprocessors, and ASICs.

The series uses double-sided surface

mount construction and provides highperformance

step-down power conversion

from a 3.3-V input bus voltage. The output

voltage of the PTH03030W can be

set to any value over the range 0.8 V to

2.5 V, using a single resistor.

This series includes Auto-Track?.

Auto-Track simplifies power-up and

power-down supply voltage sequencing

in a system by enabling modules to track

each other, or any other external voltage.

Each model also includes an on/off

inhibit, output voltage adjust (trim), and

margin up/down controls. An output

voltage sense ensures tight load regulation,

and an output over-current and thermal

shutdown feature provide for protection

against external load faults.

Package options inlude both throughhole

and surface mount configurations.