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LTC3537 Datasheet(PDF) 7 Page - Linear Technology

No. de pieza LTC3537
Descripción Electrónicos  2.2 MHz, 600mA Synchronous Step-Up DC/DC Converter and 100mA LDO
PDF  20 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrónico  LINER [Linear Technology]
Página de inicio  http://www.linear.com
Logo LINER - Linear Technology

LTC3537 Datasheet(HTML) 7 Page - Linear Technology

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LTC3537
7
3537fa
Fixed Frequency Switching
Waveform and VOUTB Ripple
Burst Mode Waveforms
VOUTB and IINB During Soft-Start
TYPICAL PERFORMANCE CHARACTERISTICS
Load Current Step Response
(from Burst Mode Operation)
Load Current Step Response
(Fixed Frequency)
Load Current Step Response
(Fixed Frequency)
Load Current Step Response
(from Burst Mode Operation)
LDO Dropout Voltage vs
Load Current
TA = 25°C unless otherwise noted.
LOAD CURRENT (mA)
0
140
120
100
80
40
60
20
0
80
70
60
50
40
90
30
20
3537 G26
100
10
VOUTB
20mV/DIV
IL
10mA/DIV
VINB = 2.4V
VOUTB = 3.3V
COUTB = 4.7μF
3537 G20
10μs/DIV
VINB = 2.4V
VOUTB = 3.3V
COUT = 4.7μF
3537 G22
VOUTB
100mV/
DIV
ILOAD
100mA/
DIV
100μs/DIV
VINB = 2.4V
VOUTB = 3.3V
COUT = 4.7μF
3537 G23
ILOAD
100mA/
DIV
VOUTB
100mV/
DIV
100μs/DIV
VINB = 3.6V
VOUTB = 5V
COUTB = 4.7μF
3537 G24
ILOAD
100mA/
DIV
VOUTB
100mV/
DIV
100μs/DIV
VINB = 3.6V
VOUTB = 5V
COUTB = 4.7μF
3537 G25
ILOAD
100mA/
DIV
VOUTB
100mV/
DIV
100μs/DIV
VINB = 2.4V
VOUTB = 3.3V
COUTB = 4.7μF
3537 G19
200ns/DIV
SW
2V/DIV
VOUTB
20mV/
DIV
ENBST
VOUTB
2V/DIV
IVINB
200mA/
DIV
VINB = 1.2V
VOUTB = 3.3V
COUTB = 4.7μF
ILOAD = 10mA
3537 G21
100μs/DIV
LDO Input Ripple Rejection vs
Frequency
FREQUENCY (kHz)
3537 G29
60
50
40
30
20
10
0
0.01
0.1
1
10
100
VINL = 3.3V
VOLDO = 3V
CLOAD = 4.7μF
ILOAD = 50mA



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