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LTC1522CS8 Datasheet(PDF) 3 Page - Linear Technology

Part # LTC1522CS8
Description  Micropower, Regulated 5V Charge Pump DC/DC Converter
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC1522CS8 Datasheet(HTML) 3 Page - Linear Technology

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LTC1522
TYPICAL PERFORMANCE CHARACTERISTICS
INPUT VOLTAGE (V)
2.5
5.05
5.10
5.15
4.5
1522 G01
5.00
4.95
4.90
3.0
3.5
4.0
5.0
IOUT = 10mA
COUT = 10µF
TA = 70°C
TA = 25°C
TA = 0°C
INPUT VOLTAGE (V)
2.5
150
200
250
4.5
1522 G03
100
50
0
3.0
3.5
4.0
5.0
IOUT = 10mA
CFLY = 0.1µF
TA = 25°C
COUT = 6.8µF
COUT = 10µF
COUT = 22µF
COUT = 3.3µF
INPUT VOLTAGE (V)
2.5
70
80
90
4.5
1522 G02
60
50
40
3.0
3.5
4.0
5.0
IOUT = 10mA
TA = 25°C
Output Voltage vs Input Voltage
Efficiency vs Input Voltage
Output Ripple vs Input Voltage
No Load Input Current
vs Input Voltage
Typical Output Voltage
vs Output Current
OUTPUT CURRENT (mA)
0
5.0
5.1
80
1522 G05
4.9
4.8
20
40
60
5.2
VIN = 3.3V
VIN = 3V
VIN = 2.7V
TA = 25°C
CFLY = 0.1µF
COUT = 6.8µF
Load Transient Response
IOUT
0mA TO 10mA
10mA/DIV
VOUT
AC COUPLED
50mV/DIV
VIN = 3V
500
µs/DIV
1522 G06
COUT = 10µF
PIN FUNCTIONS
NC (Pin 1): No Connect.
VIN (Pin 2): Input Supply Voltage. Bypass VIN with a
≥3.3µF low ESR capacitor.
VOUT (Pin 3): 5V Output Voltage (VOUT = 0V in Shutdown).
Bypass VOUT with a ≥ 3.3µF low ESR capacitor.
C+ (Pin 4): Flying Capacitor, Positive Terminal.
C (Pin 5): Flying Capacitor, Negative Terminal.
GND (Pin 6): Ground.
SHDN (Pin 7): Active High CMOS Logic-Level Shutdown
Input. Drive SHDN low to enable the DC/DC converter. Do
not float.
NC (Pin 8): No Connect.
INPUT VOLTAGE (V)
2.5
7
8
9
4.5
1522 G04
6
5
4
3.0
3.5
4.0
5.0
IOUT = 0mA
TA = 70°C
TA = 25°C
TA = 0°C


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