LT1054IS8PBF Datasheet, PDF (12/16 Pages) Linear Technology – Switched-Capacitor Voltage Converter with Regulator

LT1054/LT1054L
TYPICAL APPLICATIONS
V_IN
3.5V TO 5.5V
3.5V to 5V Regulator
20k _1N914
1N914
1N914
10µF
V_IN = 3.5V TO 5.5V
V_OUT = 5V
I_OUT(MAX) = 50mA
FB/SHDN V⁺
CAP⁺ OSC
LT1054
GND V_REF
CAP ^– V_OUT
R1
5µF
20k
1µF
R2
125k
1
8
2
7
LTC1044
3
6
4
5
1µF
0.002µF _R2
125k
100µF 3k
V_OUT = 5V
1N5817
2N2219
1N914
LT1054 • TA10
Regulating 200mA, 12V to – 5V Converter
5µF ₊ 12V
10Ω
1/2W 10µF
FB/SHDN V⁺
CAP⁺ OSC
LT1054 #1
GND V_REF
CAP ^– V_OUT
R1
39.2k
R2
200k
10µF
0.002µF
10Ω
1/2W
) ) ^R2
R1
=
|V_OUT|
V_REF
2
–
40mV
+1
=
|V_OUT|
1.21V
+
1
,
REFER TO FIGURE 5
200µF
V_OUT = –5V
I_OUT = 0mA to 200mA
FB/SHDN V⁺
CAP⁺ OSC
LT1054 #2 _20k
GND V_REF
CAP ^– V_OUT
HP5082-2810
LT1054 • TA11
Digitally Programmable Negative Supply
10µF
15V
+
5µF
FB/SHDN V⁺
CAP⁺ OSC
LT1054
GND V_REF
CAP ^– V_OUT
20k
20k
16
LT1004-2.5
2.5V
V_OUT = –V_IN (PROGRAMMED)
100µF
11
AD558
14 13
DIGITAL
INPUT
12
LT1054 • TA12
12
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