tcv7102af TOSHIBA Semiconductor CORPORATION, tcv7102af Datasheet - Page 5

• Manufacturer Part Number: tcv7102af
• Description: Buck Dc-dc Converter Ic
• Manufacturer: TOSHIBA Semiconductor CORPORATION

Note on Electrical Characteristics
the chip’s junction temperature can be ignored during pulse testing.
Application Circuit Example
The test condition T
Figure 1 shows a typical application circuit using a low-ESR electrolytic or ceramic capacitor for C
Component values (reference value@ V
C
C
Examples of Component Values (For Reference Only)
Component values need to be adjusted, depending on the TCV7102AF’s I/O conditions and the board layout.
Output Voltage Setting
SS
C
(Connect it when the circuit operation is unstable due to the board layout or a feature of the C
is a decoupling capacitor of Input pin for the control section.
C
C
R
R
L: Inductor = 1.0 μH
is a capacitor for adjusting the soft-start time.
IN
OUT
FB1
FB2
V
EN
GND
(CLF7045T-1R0N manufactured by TDK-EPC Corporation,
IN
DS75LC B1047AS-1R0N manufactured by TOKO, INC)
1.51 V
: Input filter capacitor = 10 μF
V
1.0 V
1.2 V
1.8 V
2.5 V
3.3 V
: Output voltage setting resistor = 7.5 kΩ
: Output voltage setting resistor = 2.4 kΩ
OUT
(ceramic capacitor: GRM21BB30J106K manufactured by Murata Manufacturing Co., Ltd.)
: Output filter capacitor = 10 μF
(ceramic capacitor: GRM21BB30J106K manufactured by Murata Manufacturing Co., Ltd.)
C
IN
j
= 25°C means a state where any drifts in electrical characteristics incurred by an increase in
C
C
Inductance
Figure 1 TCV7102AF Application Circuit Example
1.0 μH
1.0 μH
1.0 μH
1.0 μH
1.0 μH
1.0 μH
L
V
EN
SS
IN2
C
SS
IN
Input Capacitance
= 5 V, V
SGND
TCV7102AF
10 μF
10 μF
10 μF
10 μF
10 μF
10 μF
C
IN
OUT
V
IN1
= 3.3 V, Ta = 25°C)
5
PGND
Output Capacitance
V
L
C
30 μF
20 μF
20 μF
20 μF
20 μF
20 μF
FB
X
OUT
L
R
R
FB1
FB2
Feedback Resistor
7.5 kΩ
7.5 kΩ
5.1 kΩ
7.5 kΩ
16 kΩ
15 kΩ
R
FB1
C
TCV7102AF
OUT
Feedback Resistor
IN
V
OUT
.)
GND
OUT
2011-06-23
2.4 kΩ
2.4 kΩ
30 kΩ
15 kΩ
18 kΩ
12 kΩ
R
.
FB2