LM3674_15 Datasheet, PDF (15/26 Pages) Texas Instruments – LM3674 2-MHz, 600-mA Step-Down DC-DC Converter in SOT-23

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MODEL
10 µF for C_OUT
GRM21BR60J106K
C2012X5R0J106K
JMK212BJ106K
4.7 µF for C_IN
GRM21BR60J475K
JMK212BJ475K
C2012X5R0J475K
LM3674
SNVS405G – DECEMBER 2005 – REVISED APRIL 2015
Table 2. Suggested Capacitors and Their Suppliers
TYPE
VENDOR
VOLTAGE RATING (V) CASE SIZE [Inch (mm)]
Ceramic, X5R
Murata
6.3
0805 (2012)
Ceramic, X5R
TDK
6.3
0805 (2012)
Ceramic, X5R
Taiyo-Yuden
6.3
0805 (2012)
Ceramic, X5R
Murata
6.3
0805 (2012)
Ceramic, X5R
Taiyo-Yuden
6.3
0805 (2012)
Ceramic, X5R
TDK
6.3
0805 (2012)
8.2.1.3 Application Curves
Table 3. Related Plots
PLOT TITLE
Output Voltage vs Supply Voltage
Output Voltage vs Temperature
Output Voltage vs Output Current
Efficiency vs Output Current
Efficiency vs Output Current
Efficiency vs Output Current
Efficiency vs Output Current
Line Transient Response
Load Transient
Start-Up
Start-Up
8.2.2 Typical Application Circuit for Adjustable Voltage Option
V_IN
2.7V to 5.5V
C_IN: 4.7 2F
V_IN
1
L₁: 2.2 2H
SW
5
LM3674-
GND
ADJ
2
C₁
R₁
EN
3
FB
4
C₂
R₂
FIGURE
Figure 4
Figure 5
Figure 6
Figure 9
Figure 10
Figure 11
Figure 12
Figure 14
Figure 15
Figure 16
Figure 17
V_OUT
C_OUT: 10 2F
Figure 20. Typical Application Circuit for Adjustable Voltage Option Schematic
8.2.2.1 Design Requirements
DESIGN PARAMETER
Output voltage
EXAMPLE VALUE
1.5 V
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