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PDF YB1680 Data sheet ( Hoja de datos )
| Número de pieza | YB1680 | |
| Descripción | 600mA Synchronous Step-Down Converter | |
| Fabricantes | YOBON TECHNOLOGIES | |
| Logotipo |  |
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YB1680
1.5MHz, 600mA Synchronous Step-Down Converter
Description
The YB1680 is a 1.5MHz constant
frequency, slope compensated current
mode PWM step-down converter. The
device integrates a main switch and a
synchronous rectifier for high efficiency
without an external Schottky diode. It is
ideal for powering portable equipment that
runs from a single cell lithium-Ion (Li+)
battery. The YB1680 can supply 600mA of
load current from a 2.5V to 5.5V input
voltage. The output voltage can be
regulated as low as 0.6V. The YB1680 can
also run at 100% duty cycle for low dropout
operation, extending battery life in portable
system. Idle mode operation at light loads
provides very low output ripple voltage for
noise sensitive applications.
The YB1680 is offered in a low profile 5-pin,
SOT package, and is available in an
adjustable version.
Features
High Efficiency : Up to 94%
1.5MHz Constant Switching Frequency
600mA Output Current at VIN=3V
Integrated Main Switch and Synchronous
Rectifier. No Schottky Diode Required
2.5V to 5.5V Input Voltage Range
Output Voltage as Low as 0.6V
100% Duty Cycle in Dropout
Low Quiescent Current : 300μA
Slope Compensated Current Mode
Control for Excellent Line and Load
Transient Response
Short Circuit Protection
Thermal Fault Protection
<1μA Shutdown Current
Space Saving 5-Pin SOT23 Package
Pb-free Package
Applications
Cellular and Smart Phones
Microprocessors and DSP Core Supplies
Wireless and DSL Modems
PDAs
MP3 Player
Digital Still and Video Cameras
Portable Instruments
Typical Application Circuit
Figure 1: Typical Application Circuit
YB1680 Rev.1.0
www.yobon.com.tw
1
1 page  
YB1680
1.5MHz, 600mA Synchronous Step-Down Converter
YB1680 Rev.1.0
www.yobon.com.tw
5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet YB1680.PDF ] | |
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