YB1680 Datasheet, PDF (2/10 Pages) YOBON TECHNOLOGIES,INC. – 1.5MHz, 600mA Synchronous Step-Down Converter

Pin Configuration
YB1680
1.5MHz, 600mA Synchronous Step-Down Converter
EN ₁
5 ^FB
GND ₂
SW ₃
4 ^VIN
SOT23-5
Figure 2: Pin Configuration
Pin Description
Table 1
Pin Name
Description
Regulator Enable control input. Drive EN above 1.5V to turn on the
1
EN part. Drive EN below 0.3V to turn it off. In shutdown, all functions are
disabled drawing <1μA supply current. Do not leave EN floating.
2
GND Ground.
Power Switch Output. It is the Switch note connection to Inductor. This
3
SW pin connects to the drains of the internal P-CH and N-CH MOSFET
switches.
4
VIN
Supply Input Pin. Must be closely decoupled to GND, Pin 2, with a
2.2μF or greater ceramic capacitor.
VFB (Adjustable Version) : Feedback Input Pin. Connect FB to the
5
FB center point of the external resistor divider. The feedback threshold
voltage is 0.6V.
Ordering Information
Order Number
Package Type
YB1680ST25XADJP
SOT23-5
Supplied As
Package Marking
3000 units Tape & Reel
A1XY (Note 1)
Note 1: XY = Manufacturing Date Code
YB1680 Rev.1.0
www.yobon.com.tw
2