TLV62090RGTT.B中文资料德州仪器数据手册PDF规格书

1 Features

1• 2.5 V to 5.5 V Input Voltage Range

• DCS-Control™

• Up To 98% Efficiency

• Power Save Mode

• 20 μA Operating Quiescent Current

• 100% Duty Cycle for Lowest Dropout

• 1.4 MHz Typical Switching Frequency

• 0.8 V to VIN Adjustable Output Voltage

• Output Discharge Function

• Adjustable Softstart

• Hiccup Short Circuit Protection

• Output Voltage Tracking

• Pin-to-Pin Compatible with TPS62090, TLV62095

and TPS62095

• For Improved Feature Set, See TPS62090

• Create a Custom Design using the TLV62090 with

the WEBENCH® Power Designer

2 Applications

• Distributed Power Supplies

• Notebook, Netbook Computers

• Hard Disk Drives (HDD)

• Solid State Drives (SSD)

• Processor Supply

• Battery Powered Applications

3 Description

The TLV62090 device is a high frequency

synchronous step-down converter optimized for small

solution size, high efficiency and suitable for battery

powered applications. To maximize efficiency, the

converter operates in pulse width modulation (PWM)

mode with a nominal switching frequency of 1.4 MHz

and it automatically enters power save mode

operation at light load currents. When used in

distributed power supplies and point of load

regulation, the device allows voltage tracking to other

voltage rails and tolerates output capacitors ranging

from 10 μF up to 150 μF and beyond. Using the

DCS-Control topology, the device achieves excellent

load transient performance and accurate output

voltage regulation.

The output voltage start-up ramp is controlled by the

softstart pin, which allows operation as either a

standalone power supply or in tracking configurations.

Power sequencing is also possible by configuring the

enable (EN) and power good (PG) pins. In power

save mode, the device operates with typically 20-μA

quiescent current. Power save mode is entered

automatically and seamlessly, maintaining high

efficiency over the entire load current range.

The device is available in a 3 mm x 3 mm 16-pin

VQFN (RGT) package.