TLVM1440X中文資料德州儀器數(shù)據(jù)手冊PDF規(guī)格書

1 Features

? Versatile dual output voltage or single output

synchronous buck module

– Integrated MOSFETs, inductor, and controller

– Wide input voltage range of 3V to 36V

– Adjustable output voltage from 0.8V to 9V

– 6.5mm × 7.0mm × 2mm overmolded package

– –40°C to 125°C junction temperature range

? Ultra-high efficiency across the full load range

– Peak efficiency of 93.5%

– External bias option for improved efficiency

– Exposed Pad for low thermal impedance. EVM

θ JA = 20°C/W.

– Shutdown quiescent current of 0.6μA (typical)

? Ultra-low conducted and radiated EMI

– Low-noise package with dual input paths and

integrated capacitors reduces switch ringing

– Meets CISPR 11 and 32 Class B emissions

? Inherent protection features for robust design

– Precision enable input and open-drain PGOOD

indicator for sequencing, control, and VIN UVLO

– Overcurrent and thermal shutdown protections

? Create a custom design using the TLVM1440x with

the WEBENCH? Power Designer

2 Applications

? Test and measurement, aerospace and defense

? Factory automation and control

? Buck power supplies

3 Description

The TLVM1440x is a highly integrated, 36V input

capable, DC/DC design that combines power

MOSFETs, a shielded inductor, and passives in

an enhanced HotRod? QFN package. The device

supports either dual output or high current single

output using an interleaved, stackable, current-mode

control architecture for easy loop compensation, fast

transient response, excellent load and line regulation.

The module has VIN and VOUT pins located at the

corners of the package for optimized input and output

capacitor placement. A large thermal pad beneath the

module enable a simple layout and easy handling in

manufacturing.

With an output voltage from 1V to 9V, the TLVM1440x

is designed to quickly and easily implement a low-EMI

design in a small PCB footprint. The total design

requires as few as six external components and

eliminates the magnetics selection from the design

process.

Although designed for small size and simplicity

in space-constrained applications, the TLVM1440x

module offers many features for robust performance:

precision enable with hysteresis for adjustable

input-voltage UVLO, along with integrated VCC,

bootstrap and input capacitors for increased reliability

and higher density. The module is configured for

automatically switching between constant switching

frequency (FPWM) at higher loads to variable

frequency (PFM) for higher light load efficiency.

Including a PGOOD indicator for sequencing, fault

protection, and output voltage monitoring.