YB1300S Datasheet, PDF (1/8 Pages) YOBON TECHNOLOGIES,INC. – Switched Capacitor Boost Converter 5V/4.5V

YB1300S
Switched Capacitor Boost Converter 5V/4.5V
Description
The YB1300S is a switched capacitor
DC/DC boost converter that produces a
regulated 5V output. The input voltage
range is from 2.7V to 5.0V that makes the
YB1300S ideally for a single cell Li-Ion
battery source.
The YB1300S works well for step-up
applications without the need for an
inductor. The 1MHz switching frequency
allows the use of small SMD capacitors.
The YB1300S provides thermal protection,
short-circuit current limit protection. In order
to prevent in-rush current effectively, it
provides automatic soft-start. The
shutdown current is less than 0.1μA. The
YB1300S is available in a 6-pin SOT23
package.
Features
„ Switched-Capacitor Step-Up
Operation
„ Input Range : 2.7V to 5.0V
„ Shutdown Mode
„ 5V/4.5V Fix Output Voltage
„ 1MHz Internal Oscillator
„ Thermal Protection Shutdown
„ Output Short-circuit Current Limit
Protection
„ Automatic Soft-Start Reduces
In-Rush Current
„ SOT23-6 Package
Applications
„ Cellular Phones
„ White LED Drivers
„ Smart Card Reader
„ PCMCIA Cards
„ Li-Ion Battery Backup Supplies
Typical Application Circuit
1-Cell
Li-Ion-Battery
CIN
2.2uF
5
YB1300S
VIN
VOUT
1
3 _EN
CP ⁶
2 _GND
CN ⁴
R
R
R
R
R
C_PUMP
0.22uF
C_OUT
2.2uF
Figure 1. Typical application circuit
YB1300S MRev.1.0
www.yobon.com.tw
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