LTC3255_15 Datasheet, PDF (16/16 Pages) Linear Technology – Wide VIN Range Fault Protected 50mA Step-Down Charge Pump

LTC3255
TYPICAL APPLICATION
Wide Input Range 12V Supply
1µF
INPUT
13V TO 48V
1µF
0.1µF
V_IN ^C+
C^– _VOUT
EN LTC3255
BIAS
FB
PGOOD
SHUNT
GND
1.1M 220k
OUTPUT
12V
50mA
10µF
PGOOD
121k
3255 TA04
RELATED PARTS
PART NUMBER
LTC1751-3.3/LTC1751-5
LTC1983-3/LTC1983-5
LTC3200-5
LTC3202
LTC3204-3.3/LTC3204B-3.3
LTC3204-5/LTC3204B-5
LTC3440
LTC3441
LTC3443
LTC3240-3.3/
LTC3240-2.5
LTC3245
LTC3260
LTC3261
DESCRIPTION
100mA, 800kHz Regulated Doubler
100mA, 900kHz Regulated Inverter
100mA, 2MHz Low Noise, Doubler/White LED Driver
125mA, 1.5MHz Low Noise, Fractional White LED Driver
Low Noise, Regulated Charge Pumps in (2mm × 2mm)
DFN Package
600mA (I_OUT) 2MHz Synchronous Buck-Boost DC/DC
Converter
High Current Micropower 1MHz Synchronous
Buck-Boost DC/DC Converter
High Current Micropower 600kHz Synchronous
Buck-Boost DC/DC Converter
3.3V/2.5V Step-Up/Step-Down Charge Pump DC/DC
Converter
Wide V_IN Range Low Noise 250mA Buck-Boost
Charge Pump
Low Noise Dual Supply Inverting Charge Pump
High Voltage, Low Quiescent Current Inverting
Charge Pump
COMMENTS
V_IN: 2V to 5V, V_OUT(MAX) = 3.3V/5V, I_Q = 20μA, I_SD < 2μA,
MS8 Package
V_IN: 3.3V to 5.5V, V_OUT(MAX) = –3V/–5V, I_Q = 25μA, I_SD < 2μA,
ThinSOT™ Package
V_IN: 2.7V to 4.5V, V_OUT(MAX) = 5V, I_Q = 3.5mA, I_SD < 1μA,
ThinSOT Package
V_IN: 2.7V to 4.5V, V_OUT(MAX) = 5.5V, I_Q = 2.5mA, I_SD < 1μA,
DFN, MS Packages
V_IN: 1.8V to 4.5V (LTC3204B-3.3), 2.7V to 5.5V (LTC3204B-5),
I_Q = 48μA, LTC3204B Version without Burst Mode Operation,
6-Lead (2mm × 2mm) DFN Package
95% Efficiency, V_IN: 2.5V to 5.5V, V_OUT(MIN) = 2.5V, I_Q = 25μA,
I_SD ≤ 1μA, 10-Lead MS Package
95% Efficiency, V_IN: 2.5V to 5.5V, V_OUT(MIN) = 2.5V, I_Q = 25μA,
I_SD ≤ 1μA, DFN Package
96% Efficiency, V_IN: 2.4V to 5.5V, V_OUT(MIN) = 2.4V, I_Q = 28μA,
I_SD < 1μA, DFN Package
V_IN: 1.8V to 5.5V, V_OUT(MAX) = 3.3V/2.5V, I_Q = 65μA, I_SD < 1μA,
(2mm × 2mm) DFN Package
V_IN: 2.7V to 38V, V_OUT(MAX) = 5V, I_Q = 20µA, I_SD = 4µA,
12-Lead MS and (3mm × 4mm) DFN Packages
Inverting Charge Pump With Integrated Dual Polarity 50mA LDO
Post-Regulated Outputs. V_IN: 4.5V to 32V, Charge Pump V_OUT:
–0.94 • V_IN, 100mA
V_IN: 4.5V to 32V, V_OUT = –V_IN, I_OUT = 100mA, MSOP-12 Package
16 ^{Linear Technology Corporation}
1630 McCarthy Blvd., Milpitas,
[phone] ^● FAX: [phone]
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www.linear.com/LTC3255
3255f
LT 0813 • PRINTED IN USA
 LINEAR TECHNOLOGY CORPORATION 2013