LT1110 Datasheet, PDF (14/16 Pages) Linear Technology – Micropower DC-DC Converter Adjustable and Fixed 5V, 12V

LT1110
TYPICAL APPLICATI S
All Surface Mount
Flash Memory V_PP Generator
+5V
±10%
MMBT4403
L1*
47µH
MBRS12OT3
10k
+
22µF
1 = PROGRAM
0 = SHUTDOWN
I_LIM
V _IN
SW1
LT1110CS8-12
1k
SENSE
GND
SW2
MMBF170
V_PP
12V
120MA
47µF
20V
*L1= SUMIDA CD105-470M
LT1110 • TA18
1.5V Powered Laser Diode Driver
22nF 4.7k
2N3906
1
1N4148
6 ^ILIM
AO
2
V _IN
3
SW1
220Ω
10Ω
MJE210 +
C1
100 µF
OS-CON
0.22µ F
CERAMIC
1.5V
LT1110
8 _FB
SET ⁷
1N5818
GND
SW2
5
4
1k*
L1^¦
R1
2.2µ H
TOSHIBA
TOLD-9211
2Ω
* ADJUST R1 FOR CHANGE IN LASER OUTPUT POWER
¦ _{TOKO 262LYF-0076M}
• ^{LASER DIODE CASE COMMON TO +BATTERY TERMINAL}
• ^{170mA CURRENT DRAIN FROM 1.5V CELL (50mA DIODE)}
• ^{NO OVERSHOOT}
1.5V Powered Laser Diode Driver
LT1110 • TA13
14