POWER&RF
VOUT=32V STEP-UP DC-DC CONVERTER FOR LDC/VCD BIAS APPLICATION
Designed Performance
List of common components
Input Voltage
Output Current
Output Voltage
Oscillation Frequency
VIN=4.5 to 5.5V
IOUT=up to 10mA
VOUT=32V
110kHz
Inductor Peak Current 250mA
Coil (TOKO)
Type D52LC A914BYW-101M
Parameter
Symbol Value Unit
Coil
L 100
µH
Input Capacitor
CIN
4.7
µF
Output Capacitor
COUT
10
µF
Short Circuit Protection Resistor
CSCP 0.1
µF
Bias Resistor
RB
2
kΩ
Time Capacitor
CT 1000
pF
Time Resistor
RT
4.7
kΩ
Feedback Capacitor
CFB 0.1
µF
VOUT
TK11840L
1 Ealn
FB 8
CFB
CSCP
2 SCP
OSC 7
VIN
3 VCC
GND 6
CT RT
RB
4 BR/CTL
VOUT 5
Sw.Tr.
R2
CR2
360kΩ 1000pF
R1
5.6kΩ
L
D
CIN
COUT
VOUT=5V STEP-UP DC-DC CONVERTER FOR SPEAKER DRIVER APPLICATION
Designed Performance
List of common components
Input Voltage
Output Current
Output Voltage
Oscillation Frequency
Inductor Peak Current
Coil (TOKO)
VIN=3.0 to 4.0V
IOUT=up to 300mA
VOUT=5.0V
740kHz
800mA
Type D412F 972AS-4R7M
Parameter
Symbol Value Unit
Coil
L 4.7
µH
Input Capacitor
CIN
4.7
µF
Output Capacitor
COUT
22
µF
Short Circuit Protection Resistor
CSCP 0.1
µF
Bias Resistor
RB
1
kΩ
Time Capacitor
CT 270
pF
Time Resistor
RT
2.2
kΩ
Feedback Capacitor
CFB 0.1
µF
VOUT
TK11840L
1 Ealn
FB 8 RFB CFB
CSCP
2 SCP
OSC 7 2.2kΩ
VIN
3 VCC
GND 6
CT RT
RB
4 BR/CTL
VOUT 5
Sw.Tr.
R2
CR2
68kΩ 10pF
R1
7.5kΩ
L
D
CIN
COUT
* Please inquire us about applications except above.
上記以外のアプリケーションについてはお問い合わせ下さい。
2005 SPRING