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LTC3535 Datasheet(PDF) 5 Page - Linear Technology

Part # LTC3535
Description  Dual Channel 550mA 1MHz Synchronous Step-Up DC/DC Converter
PDF  16 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3535 Datasheet(HTML) 5 Page - Linear Technology

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LTC3535
5
3535fa
TYPICAL PERFORMANCE CHARACTERISTICS (Each Channel) T
A = 25°C, unless otherwise noted.
–50 –30 –10
10
30
50
70
90
TEMPERATURE (°C)
1.0
1.1
1.2
3535 G12
0.8
0.7
1.3
0.9
NORMALIZED TO 25°C
RDS(ON) vs VOUT
Oscillator Frequency Change
vs Temperature
RDS(ON) Change vs Temperature
VOUT (V)
1.5
0.50
0.45
0.80
0.85
0.90
2.5
3.5
4.0
3535 G10
0.35
0.70
0.60
0.40
0.75
0.30
0.65
0.55
2.0
3.0
4.5
5.0
PMOS
NMOS
–50 –30 –10
10
30
50
70
90
TEMPERATURE (°C)
4
6
8
3535 G11
0
–10
–8
–6
10
2
–2
–4
NORMALIZED TO 25°C
TEMPERATURE (°C)
–50
0.50
0.55
0.60
0.65
0.70
0.80
25
0
25
50
3526 G14
75
100
0.75
1mA LOAD
NO LOAD
VFB vs Temperature
Start-Up Voltage vs Temperature
Burst Mode Quiescent Current
vs VOUT
TEMPERATURE (°C)
–60
–1.00
–0.75
–0.50
–0.25
0
–20
20
60
100
3535 G13
0.25
0.50
–40
0
40
80
NORMALIZED TO 25°C
VOUT (V)
1.5
10.0
9.5
9.0
8.5
8.0
7.5
7.0
3.0
4.0
4.5
3535 G15
2.0
2.5
3.5
5.0
MEASURED ON VOUT
Fixed Frequency Switching
Waveform and VOUT Ripple
Burst Mode Waveforms
VOUT and IIN During Soft-Start
SW PIN
2V/DIV
500ns/DIV
VIN = 1.2V
VOUT = 3.3V AT 100mA
COUT = 10µF
3535 G16
VOUT
10mV/DIV
AC-COUPLED
SW PIN
2V/DIV
INDUCTOR
CURRENT
0.2A/DIV
10µs/DIV
VIN = 1.2V
VOUT = 3.3V
COUT = 10µF
3535 G17
VOUT
20mV/DIV
AC-COUPLED
SHDN PIN
1V/DIV
INPUT
CURRENT
0.2A/DIV
200µs/DIV
VOUT = 3.3V
COUT = 10µF
3535 G18
VOUT
1V/DIV



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