Datasheet > TLV62090_16

TLV62090_16

更新时间： 2024-09-29 02:58:19

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德州仪器 - TI		/
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3A High Efficiency Synchronous Step-Down Converter

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TLV62090_16 数据手册

TLV62090

www.ti.com

SLVSBB9B –MARCH 2012–REVISED APRIL 2012

3A High Efficient Synchronous Step Down Converter with DCS™ Control

Check for Samples: TLV62090

FEATURES

DESCRIPTION

The TLV62090 device is

high frequency

•

2.5 V to 5.5 V Input Voltage Range

DCS™ Control

synchronous step down converter optimized for small

solution size, high efficiency and suitable for battery

powered applications. To maximize efficiency, the

converter operates in PWM mode with a nominal

switching frequency of 1.4 MHz and 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.

95% Converter 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 V_INAdjustable Output Voltage

Output Discharge Function

Adjustable Softstart

Two Level Short Circuit Protection

Output Voltage Tracking

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 and Power Good pins. In Power Save Mode,

the device operates at typically 20 µA quiescent

current. Power Save Mode is entered automatically

and seamlessly maintaining high efficiency over the

entire load current range.

Wide Output Capacitance Selection

Available in 3x3mm 16 Pin QFN Package

APPLICATIONS

•

Distributed Power Supplies

Notebook, Netbook Computers

Hard Disk Drivers

Processor Supply

Battery Powered Applications

100

TLV62090

1mH

Vin

2.5V to 5.5V

Vout

1.8V/3A

PVIN

22mF

200k

AVIN

DEF

VOS

500k

160k

10nF

Power Good

10nF

V_OUT= 3.3 V

L = 1 µH

f = 1.4 MHz

V_IN= 3.7 V

V_IN= 4.2 V

V_IN= 5 V

AGND

PGND PGND

14 15

100m

100

10k

I load (mA)

G002

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...23

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TLV62090RGTR	TI	获取价格	3A High Efficient Synchronous Step Down Converter with DCS? Control
TLV62090RGTT	TI	获取价格	3A High Efficient Synchronous Step Down Converter with DCS? Control
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TLV62130	TI	获取价格	4-17V 3A Step-Down Converter with DCS-ControlTM
TLV62130_13	TI	获取价格	4-17V 3A Step-Down Converter with DCS-ControlTM
TLV62130A	TI	获取价格	4-17V 3A Step-Down Converter with DCS-ControlTM
TLV62130ARGTR	TI	获取价格	4-17V 3A Step-Down Converter with DCS-Control
TLV62130ARGTT	TI	获取价格	4-17V 3A Step-Down Converter with DCS-Control

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