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YOBON TECHNOLOGIES
YOBON TECHNOLOGIES


YB1300S

Switched Capacitor Boost Converter 5V/4.5V



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YB1300S pdf
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
RRRRR
CPUMP
0.22uF
COUT
2.2uF
YB1300S Rev.1.2
Figure 1: Typical Application Circuit
www.yobon.com.tw
1



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YB1300S pdf
YB1300S
Switched Capacitor Boost Converter 5V/4.5V
Pin Configuration
VOUT 1
6 CP
GND 2
5 VIN
EN 3
4 CN
SOT23-6
Figure 2: Pin Configuration
Pin Description
Table 1
Pin Name
Description
1
VOUT
Regulated output voltage. VOUT should be bypassed with a low ESR
capacitor for the best performance.
2 GND Ground pin.
3
EN
1.2V or above will turn on the IC. Below 0.4V will put the chip in the
shutdown mode.
4 CN Pumping capacitor negative terminal.
5
VIN
Input supply voltage. VIN should be bypassed with a 2.2μF low ESR
capacitor.
6 CP Pumping capacitor positive terminal.
Ordering Information
Order Number
YB1300ST26S450
YB1300ST26S500
Package Type
SOT23-6
SOT23-6
Supplied As
3000 Units Tape & Reel
3000 Units Tape & Reel
Package Marking
TBB
TBA
YB1300S Rev.1.2
www.yobon.com.tw
2



Part Number YB1300S
Description Switched Capacitor Boost Converter 5V/4.5V
Maker YOBON TECHNOLOGIES - YOBON TECHNOLOGIES
Total Page 8 Pages
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