LTC1911-15 Datasheet, PDF (12/12 Pages) Linear Technology – Low Noise, High Efficiency, Inductorless Step-Down DC/DC Converter

LTC1911-1.5/LTC1911-1.8
TYPICAL APPLICATIO
DC/DC Converter with Shutdown and Soft-Start
1-CELL Li-Ion
OR
3-CELL NiMH
2.7V TO 5.5V INPUT
10µF*
1µF*
*CERAMIC CAPACITOR
LTC1911-1.5
1 _{VIN SS/SHDN} 8
2 _C2+
C1^{+ 7}
3 _C2–
4 _GND
V_OUT ⁶
C1^{– 5}
1µF*
V_OUT = 1.5V
I_OUT = 250mA
10µF*
10nF
2N7002
ON OFF
1911 TA03
RELATED PARTS
PART NUMBER
DESCRIPTION
COMMENTS
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V_IN = 0.9V to 1.8V, I_OUT = 10mA, I_Q = 40µA
100mA Output Current, I_CC = 25µA
2V to 10V Input Range, Up to 50mA Output Current Short-Circuit and
Overtemperature Protected
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SIM Power Supply and Level Translator
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LTC1627
Monolithic Synchronous Buck Step-Down
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Low Dropout Operation, 100% Duty Cycle
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1MHz Step-Down DC/DC Converter in ThinSOT^TM
LTC1754-3.3
3.3V/5V Doubler Charge Pump with Shutdown in ThinSOT
ThinSOT is a trademark of Linear Technology Corporation.
V_IN = 2.5V to 5.5V; V_OUT = 1.25V to 5V; I_OUT = 500mA
50mA Output Current, I_CC = 13µA
12 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] ^q FAX: [phone] ^q www.linear.com
sn1911 1911is
LT/TP 0802 1.5K • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 2001