LT8410/LT8410-1
13
84101fc
For more information www.linear.com/LT8410
SW CAP
GND
FBP
8410-1 TA09
LT8410
C1
2.2µF
C3
0.1µF
C4
0.1µF
150µH
C2
0.1µF
V
OUT
= 34V
V
IN
2.5V to 16V
V
CC
V
OUT
V
REF
SHDN
133k
866k
TURN ON/OFF
C1: 2.2μF, 16V, X5R, 0603
C2: 0.1μF, 100V, X5R, 0603
C3: 0.1μF, 100V, X5R, 0603 *
C4: 0.1μF, 16V, X7R, 0402
L1: COILCRAFT LPS3314-154ML
* HIGHER CAPACITANCE VALUE IS REQUIRED FOR
C3 WHEN THE V
IN
IS HIGHER THAN 8V
34V Output Converter with Wide Input Voltage
Efficiency vs Load Current
LOAD CURRENT (mA)
0.01
EFFICIENCY (%)
50
60
70
80
40
8410-1 TA10
1010.1
V
IN
= 12V
V
IN
= 3.6V
V
IN
= 5V
V
IN
(V) I
OUT
(mA)
3.6 0.8
5 1.2
12 4
TYPICAL APPLICATIONS
V
OUT
(V)
FEEDBACK RESISTOR
DIVIDER
R1 (kΩ) / R2 ( kΩ)
MAXIMUM OUTPUT CURRENT (mA)
V
IN
= 2.8V V
IN
= 3.6V V
IN
= 5V V
IN
= 12V
40 NA 0.12 0.16 0.24 0.89
35 110/887 0.14 0.19 0.3 1.1
30 237/768 0.18 0.25 0.38 1.5
25 365/634 0.25 0.35 0.55 2
20 487/511 0.34 0.48 0.76 2.9
15 619/383 0.48 0.69 1.1 3.5
10 750/255 0.84 1.2 2.1 NA
5 866/127 2.3 3.3 3.5 NA
LT8410-1 Maximum Output Current vs Output Voltage
SW CAP
GND
FBP
8410-1 TA10a
LT8410-1
C1
2.2µF
C3
10000µF
C4
0.1µF
L1
220µH
C2
1.0µF
V
OUT
= 16V
V
IN
2.5V to 16V
V
CC
V
OUT
V
REF
SHDN
R1
604k
R2
412k
TURN ON/OFF
C1: 2.2μF, 16V, X5R, 0603
C2: 1.0μF, 25V, X5R, 0603 *
C3: 10000μF, ELECTROLYTIC CAPACITOR
C4: 0.1μF, 16V, X7R, 0402
L1: COILCRAFT LPS3008-224ML
* HIGHER CAPACITANCE VALUE IS REQUIRED FOR
C2 WHEN THE V
IN
IS HIGHER THAN 12V
SHDN VOLTAGE
2V/DIV
V
OUT
VOLTAGE
10V/DIV
INPUT CURRENT
5mA/DIV
INDUCTOR
CURRENT
10mA/DIV
V
IN
= 3.6V 20s/DIV
8410-1 G10b
Figure 5. Capacitor Charger with the LT8410-1
