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參數資料
| 型號： | TCV7104FN |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING REGULATOR, 1800 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | 3 X 3 MM, 0.65 MM PITCH, PLASTIC, SON-8 |
| 文件頁數： | 12/16頁 |
| 文件大小： | 272K |
| 代理商： | TCV7104FN |
TCV7104FN
2010-03-23
5
Note on Electrical Characteristics
The test condition Tj = 25°C means a state where any drifts in electrical characteristics incurred by an increase in
the chip’s junction temperature can be ignored during pulse testing.
Application Circuit Example
Figure 1 shows a typical application circuit using a low-ESR electrolytic or ceramic capacitor for COUT.
Figure 1 TCV7104FN Application Circuit Example
Component values (reference value@ VIN = 5 V, VOUT = 3.3 V, Ta = 25°C)
CIN: Input filter capacitor = 10 μF
(ceramic capacitor: GRM21BB30J106K manufactured by Murata Manufacturing Co., Ltd.)
COUT: Output filter capacitor = 10 μF
(ceramic capacitor: GRM21BB30J106K manufactured by Murata Manufacturing Co., Ltd.)
RFB1: Output voltage setting resistor = 7.5 kΩ
RFB2: Output voltage setting resistor = 2.4 kΩ
L: Inductor = 1.5
μH
(LTF5022T-1R5N3R6-LC or SLF6045T-1R5N4R0-3PF manufactured by TDK-EPC Corporation)
CSS is a capacitor for adjusting the soft-start time.
CC is a decoupling capacitor of Input pin for the control section.
(Connect it when the circuit operation is unstable due to the board layout or a feature of the CIN.)
Examples of Component Values (For Reference Only)
Output Voltage Setting
VOUT
Inductance
L
Input Capacitance
CIN
Output Capacitance
COUT
Feedback Resistor
RFB1
Feedback Resistor
RFB2
1.2 V
1.5
μH
10
μF
10
μF
7.5 k
Ω
15 k
Ω
1.51 V
1.5
μH
10
μF
10
μF
16 k
Ω
18 k
Ω
1.8 V
1.5
μH
10
μF
10
μF
15 k
Ω
12 k
Ω
2.5 V
1.5
μH
10
μF
10
μF
5.1 k
Ω
2.4 k
Ω
3.3 V
1.5
μH
10
μF
10
μF
7.5 k
Ω
2.4 k
Ω
Component values need to be adjusted, depending on the TCV7104FN’s I/O conditions and the board layout.
VIN1
VIN2
EN
SS
TCV7104FN
SGND
PGND
CSS
CC
VIN
EN
GND
CIN
LX
VFB
L
RFB1
RFB2
COUT
VOUT
GND
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相關代理商/技術參數 |
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