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LTC1515CS8 Datasheet(PDF) 3 Page - Linear Technology

Part # LTC1515CS8
Description  Step-Up/Step-Down Switched Capacitor DC/DC Converters with Reset
PDF  8 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC1515CS8 Datasheet(HTML) 3 Page - Linear Technology

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3
LTC1515 Series
LTC1515-X 3.3V Output Voltage
vs Input Voltage
INPUT VOLTAGE (V)
0
120
100
80
60
40
20
8
1515 G06
2
4
6
10
85
°C
–40
°C
25
°C
VOUT = 5V
IOUT = 0mA
LTC1515-X Operating Current
vs Input Voltage
TYPICAL PERFORMANCE CHARACTERISTICS
LTC1515-X
5V Efficiency vs Output Current
OUTPUT CURRENT (mA)
0.01
1
10
1515 G02
0.1
100
100
80
60
40
20
0
VOUT = 5V
TA = 25°C
VIN = 8V
VIN = 3.3V
VIN = 6V
VIN = 2.7V
LTC1515-X 3.3V Output Voltage
Ripple vs Input Voltage
ELECTRICAL CHARACTERISTICS
VIN = 2V to 10V, SHDN = 3V, C1 = 0.22µF, CIN = COUT = 10µF unless otherwise noted (Note 2).
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
POR Leakage Current
VPOR = 5V
q
–1
1
µA
POR Trip Point (With Respect to VOUT)VOUT Ramping Negative
q
–10
– 7.5
–5
%
POR Trip Point Hysteresis
1%
IOUT Short-Circuit Current
VOUT = 0V
q
12
40
mA
tON
Soft Start Turn-On Time
4
ms
POR Delay
After VOUT Above POR Threshold
q
140
200
280
ms
The q denotes specifications which apply over the full operating
temperature range.
Note 1: Absolute Maximum Ratings are those values beyond which the life
of the device may be impaired.
Note 2: For VIN ≥ 8V, COUT = 22µF.
INPUT VOLTAGE (V)
0
250
200
150
100
50
0
8
1515 G03
2
4
6
10
VOUT = 3.3V
IOUT = 10mA
TA = 25°C
COUT = 10µF
COUT = 22µF
COUT = 47µF
INPUT VOLTAGE (V)
0
250
200
150
100
50
0
8
1515 G04
2
4
6
10
VOUT = 5V
IOUT = 10mA
TA = 25°C
COUT = 10µF
COUT = 47µF
COUT = 22µF
LTC1515-X 5V Output Voltage
Ripple vs Input Voltage
LTC1515-X
3.3V Efficiency vs Output Current
OUTPUT CURRENT (mA)
0.01
1
10
1515 G01
0.1
100
100
80
60
40
20
0
VOUT = 3.3V
TA = 25°C
VIN = 2V
VIN = 4.4V
VIN = 2.7V
VIN = 6V
INPUT VOLTAGE (V)
0
3.45
3.40
3.35
3.30
3.25
3.20
8
1515 G05
2
4
6
10
VOUT = 3.3V
IOUT = 10mA
COUT = 10µF
TA = 25°C



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