LT1054_15 Datasheet, PDF (16/16 Pages) Linear Technology – Switched-Capacitor Voltage Converter with Regulator

LT1054/LT1054L
Typical Applications
Positive Doubler with Regulation
V_IN = 5V
V_OUT
8V
50mA
1N5817
50k
10µF
FB/SHDN V⁺
2µF
1N5817 ^0.03µF
10k
CAP⁺ OSC
LT1054
GND V_REF
100µF
5.5k
10k
5V
–
CAP ^–
10k
V_OUT
LT1006
2.5k
+
0.1µF
LT1054 • TA13
Negative Doubler with Regulator
V_IN
3.5V TO 15V
FB/SHDN V⁺
10µF
10µF
CAP⁺ OSC
LT1054
GND V_REF
CAP ^– V_OUT
1N4001
2µF
R1, 20k
100µF
R2
1M
1N4001
0.002µF
–V_OUT
V_IN = 3.5V TO 15V
100µF
V_OUT(MAX) ≈ –2V_IN + (V_L + 2V_DIODE)
V_L = LT1054 VOLTAGE LOSS
) ) ^R2
R1
=
|V_OUT|
V_REF
2
–
40mV
+1
=
|V_OUT|
1.21V
+
1
,
REFER
TO
FIGURE
5
LT1054 • TA14
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
LTC^®1144
LTC1514/LTC1515
LT1611
LT1614
LTC1911
LTC3250/LTC3250-1.2/
LTC3250-1.5
LTC3251
LTC3252
DESCRIPTION
Switched-Capacitor Wide Input Range Voltage Converter with
Shutdown
Step-Up/Step-Down Switched-Capacitor DC/DC Converters
150mA Output, 1.4mHz Micropower Inverting Switching Regulator
250mA Output, 600kHz Micropower Inverting Switching Regulator
250mA, 1.5MHz Inductorless Step-Down DC/DC Converter
Inductorless Step-Down DC/DC Converter
COMMENTS
Wide Input Voltage Range: 2V to 18V, I_SD < 8µA, SO8
V_IN: 2V to 10V, V_OUT: 3.3V to 5V, I_Q = 60µA, SO8
V_IN: 0.9V to 10V, V_OUT: ±34V ThinSOT™
V_IN: 0.9V to 6V, V_OUT: ±30V, I_Q = 1mA, MS8, SO8
V_IN: 2.7V to 5.5V, V_OUT: 1.5V/1.8V, I_Q = 180µA, MS8
V_IN: 3.1V to 5.5V, V_OUT: 1.2V, 1.5V, I_Q = 35µA, ThinSOT
500mA Spread Spectrum Inductorless Step-Down DC/DC Converter V_IN: 2.7V to 5.5V, V_OUT: 0.9V to 1.6V, 1.2V, 1.5V, I_Q = 9µA,
MS10E
Dual 250mA, Spread Spectrum Inductorless Step-Down
DC/DC Converter
V_IN: 2.7V to 5.5V, V_OUT: 0.9V to 1.6V, I_Q = 50µA, DFN12
16 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 950_F3_o5_r -_m7_o4_r1_e7_{information www.linear.com/LT1054}
[phone] ^● FAX: [phone] ^● www.linear.com/LT1054
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LT 0914 REV H • PRINTED IN USA
 LINEAR TECHNOLOGY CORPORATION 2010