LTC1871 Linear Technology, LTC1871 Datasheet - Page 31

• Manufacturer Part Number: LTC1871
• Description: Wide Input Range/ No RSENSE Current Mode Boost/ Flyback and SEPIC Controller
• Manufacturer: Linear Technology

TYPICAL APPLICATIO S
C
47pF
C2
R
22k
37.4k
C
C
6.8nF
C1
1%
R2
C
C
C
C
12.1k
IN
OUT1
OUT2
VCC
1%
:
R1
: TAIYO YUDEN LMK316BJ475ML
: SANYO POSCAP 6TPB150M
: TAIYO YUDEN JMK316BJ106ML
SANYO POSCAP 6TPA47M
R
80.6k
1%
T
U
2.5V to 3.3V Input, 5V/2A Output Boost Converter
1
2
3
4
5
RUN
I
FB
FREQ
MODE/SYNC
TH
100
Output Efficiency at 2.5V and 3.3V Input
95
90
85
80
75
70
65
60
55
50
0.001
LTC1871
INTV
SENSE
GATE
GND
0.01
V
CC
IN
OUTPUT CURRENT (A)
10
9
8
7
6
0.1
D1: INTERNATIONAL RECTIFIER 30BQ015
L1: TOKO DS104C2 B952AS-1R8N
M1: SILICONIX/VISHAY Si9426
C
4.7 F
X5R
VCC
1
+
1871 TA01b
C
47 F
6.3V
1.8 H
IN
10
L1
M1
D1
+
C
150 F
6.3V
OUT1
2
1871 TA01a
C
10 F
6.3V
X5R
OUT2
2
GND
V
2.5V to 3.3V
V
5V
2A
IN
OUT
LTC1871
31