lt8410-1 Linear Technology Corporation, lt8410-1 Datasheet - Page 14

• Manufacturer Part Number: lt8410-1
• Description: Ultralow Power Boost Converter With Output Disconnect
• Manufacturer: Linear Technology Corporation

LT8410/LT8410-1
TYPICAL APPLICATIONS
14
V
2.5V to 16V
IN
V
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
OUT
40
35
30
25
20
15
10
Figure 5. Capacitor Charger with the LT8410-1
5
(V)
C1
2.2μF
IN
220μH
IS HIGHER THAN 12V
L1
FEEDBACK RESISTOR
V
SHDN
GND
SW
CC
R1 (kΩ) / R2 ( kΩ)
LT8410-1
DIVIDER
110/887
237/768
365/634
487/511
619/383
750/255
866/127
V
V
CAP
FBP
OUT
REF
NA
R1
604k
R2
412k
LT8410-1 Maximum Output Current vs Output Voltage
8410-1 TA10a
C2
1.0μF
V
OUT
C4
0.1μF
= 16V
C3
10000μF
V
IN
0.12
0.14
0.18
0.25
0.34
0.48
0.84
= 2.8V
2.3
MAXIMUM OUTPUT CURRENT (mA)
V
INPUT CURRENT
IN
SHDN VOLTAGE
V
0.16
0.19
0.25
0.35
0.48
0.69
1.2
3.3
= 3.6V
OUT
INDUCTOR
10mA/DIV
CURRENT
VOLTAGE
5mA/DIV
10V/DIV
2V/DIV
V
Charging Waveforms
IN
= 3.6V
V
IN
0.24
0.38
0.55
0.76
0.3
1.1
2.1
3.5
= 5.0V
20s/DIV
V
8410-1 G10b
IN
0.89
1.1
1.5
2.9
3.5
NA
NA
= 12V
2
84101f