MIC2145_05 Datasheet, PDF (13/15 Pages) Micrel Semiconductor – High Efficiency 2.5W Boost Converter

MIC2145
Micrel, Inc.
V_IN
3.0V-5.0V
C1
10µF/6.3V
Murata
GRM42-6 X5R 106K 6.3 _JP1
R1 R2
100k 10k
L1
10µH
Sumida
CR32-100
PGND
SW
EN
VDD
MIC2145
RSET
FB
SS
C2
0.01µF
SGND
D1
On Semiconductor
MBR0530T1
R4
1M
C3
100pF
R3
121k
V_OUT
10.0V
C4
10µF/16V
Murata
GRM42-2 X5R 106K 16
V_IN V_OUT Load Ripple Voltage Efficiency
V V mA mV(peak-peak)
%
3.0 10.0 150
<200
83
10V Output
Efficiency
90
85
80
75
70
65
V_IN = 3.0V
6010
100
1000
OUTPUT CURRENT (mA)
Figure 9. LCD Application — Bootstrap Configuration
April 2005
13
M9999-042205