LT1054/LT1054L
TYPICAL APPLICATIONS
Negative Doubler with Regulator
Positive Doubler with Regulation
V
= 5V
IN
V
IN
3.5V TO 15V
+
50k
+
FB/SHDN
V
+
2µF
1N5817
FB/SHDN
V
+
10µF
V
2µF
+
OUT
8V
CAP
OSC
+
CAP
OSC
+
+
+
LT1054
GND
LT1054
GND
50mA
0.03µF
10µF
10µF
V
REF
1N5817
5.5k
V
REF
10k
+
R1, 20k
–
100µF
CAP
V
OUT
–
CAP
V
OUT
R2
1M
5V
100µF
0.002µF
+
10k
–
10k
1N4001
1N4001
–V
LT1006
OUT
2.5k
+
100µF
V
= 3.5V TO 15V
IN
+
V
V
≈ –2V + (V + 2V
)
DIODE
OUT(MAX)
L
IN
L
= LT1054 VOLTAGE LOSS
LT1054 • TA13
|V
REF
|
|V
|
OUT
R2
R1
0.1µF
OUT
=
+ 1 =
+ 1
, REFER TO FIGURE 5
V
1.21V
– 40mV
)
)
)
)
LT1054 • TA14
2
THE TYPICAL APPLICATIONS CIRCUITS WERE VERIFIED USING THE STANDARD LT1054. FOR S8 APPLICATIONS
ASSISTANCE IN ANY OF THE UNUSUAL APPLICATIONS CIRCUITS PLEASE CONSULT THE FACTORY
RELATED PARTS
PART NUMBER
DESCRIPTION
COMMENTS
Wide Input Voltage Range: 2V to 18V, I < 8µA, SO8
LTC®1144
Switched-Capacitor Wide Input Range Voltage Converter with
Shutdown
SD
LTC1514/LTC1515
LT1611
Step-Up/Step-Down Switched-Capacitor DC/DC Converters
V : 2V to 10V, V : 3.3V to 5V, I = 60µA, SO8
IN OUT Q
150mA Output, 1.4mHz Micropower Inverting Switching Regulator V : 0.9V to 10V, V : 34V ThinSOTꢁ
IN
OUT
LT1614
250mA Output, 600kHz Micropower Inverting Switching Regulator V : 0.9V to 6V, V : 30V, I = 1mA, MS8, SO8
IN OUT Q
LTC1911
250mA, 1.5MHz Inductorless Step-Down DC/DC Converter
V : 2.7V to 5.5V, V : 1.5V/1.8V, I = 180µA, MS8
IN OUT Q
LTC3250/LTC3250-1.2/ Inductorless Step-Down DC/DC Converter
LTC3250-1.5
V : 3.1V to 5.5V, V : 1.2V, 1.5V, I = 35µA, ThinSOT
IN OUT Q
LTC3251
500mA Spread Spectrum Inductorless Step-Down DC/DC Converter V : 2.7V to 5.5V, V : 0.9V to 1.6V, 1.2V, 1.5V, I = 9µA,
IN
MS10E
OUT
Q
LTC3252
Dual 250mA, Spread Spectrum Inductorless Step-Down
DC/DC Converter
V : 2.7V to 5.5V, V : 0.9V to 1.6V, I = 50µA, DFN12
IN OUT Q
1054lfg
LT 0611 REV G • PRINTED IN USA
16 LinearTechnology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
●
●
LINEAR TECHNOLOGY CORPORATION 2010
(408) 432-1900 FAX: (408) 434-0507 www.linear.com
Linear [ Linear ]
