1-A High Efficiency Synchronous Buck Converter
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TLV62568, TLV62568P
SLVSD89B – NO...
Description
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TLV62568, TLV62568P
SLVSD89B – NOVEMBER 2016 – REVISED NOVEMBER 2017
TLV62568 1-A High Efficiency Synchronous Buck Converter in SOT Package
1 Features
1 Up to 95% Efficiency Low RDS(ON) Switches 150 mΩ / 100 mΩ 2.5-V to 5.5-V Input Voltage Range Adjustable Output Voltage from 0.6 V to VIN Power Save Mode for Light Load Efficiency 100% Duty Cycle for Lowest Dropout 35-µA Operating Quiescent Current 1.5-MHz Switching Frequency Power Good Output Over Current Protection Internal Soft Startup Thermal Shutdown Protection Available in SOT Package Pin-to-Pin Compatible with TLV62569 Create a Custom Design Using the TLV62568
With the WEBENCH® Power Designer
2 Applications
General Purpose POL Supply Network Video Camera Set Top Box Wireless Router
3 Description
The TLV62568 device is a synchronous step-down buck DC-DC converter optimized for high efficiency and compact solution size. The device integrates switches capable of delivering an output current up to 1 A.
SPACER
Simplified Schematic
VIN 2.5 V to 5.5 V
R3 499 k VPG
C1 4.7 µF
TLV62568P VIN SW
L1 2.2 µH
EN
PG GND FB
VOUT 1.8 V / 1.0 A
C2 10 µF
R1 200 k
C3*
C3: Optional
R2 100 k
Copyright Ú 2016, Texas Instruments Incorporated
At medium to heavy loads, the device operates in pulse width modulation (PWM) mode with 1.5-MHz switching frequency. At light load, the device automatically enters Po...
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