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LTC3561A Datasheet(PDF) 5 Page - Linear Technology

Part # LTC3561A
Description  1A, 4MHz, Synchronous Step-Down DC/DC Converter
PDF  20 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3561A Datasheet(HTML) 5 Page - Linear Technology

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LTC3561A
5
3561af
RDS(ON) vs Input Voltage
RDS(ON) vs Temperature
TYPICAL PERFORMANCE CHARACTERISTICS
Dynamic Supply Current vs
Input Voltage
Supply Current vs
Temperature
Switch Leakage vs Input Voltage
Switch Leakage vs Temperature
Switching Waveforms
TA = 25°C, VIN = 3.6V, fO = 1MHz, unless otherwise noted.
INPUT VOLTAGE (V)
0.25
0.20
0.15
0.10
0.05
0.0
3561A G11
2.5
4.0
5.0
5.5
3.0
3.5
4.5
MAIN SWITCH
SYNCHRONOUS SWITCH
TEMPERATURE (°C)
0.30
0.25
0.20
0.15
0.10
0.05
0.0
3561A G12
–50
25
75
100
125
–25
0
50
MAIN SWITCH
SYNCHRONOUS SWITCH
VIN (V)
2.5
250
260
270
4
5
3561A G13
240
230
220
3
3.5
4.5
280
290
300
5.5
VOUT = 1.8V
ILOAD = 0A
TEMPERATURE (°C)
–50
340
25
3561A G14
280
240
–25
0
50
220
200
360
320
300
260
75
100
125
VOUT = 1.8V
ILOAD = 0A
INPUT VOLTAGE(V)
2500
2000
1500
1000
500
0
3561A G15
03
5
6
12
4
SYNCHRONOUS
SWITCH
MAIN SWITCH
TEMPERATURE (°C)
600
500
400
300
200
100
0
3561A G16
–50
25
75
100
125
–25
0
50
SYNCHRONOUS
SWITCH
MAIN SWITCH
VIN = 3.6V
VOUT = 1.8V
ILOAD = 5mA
SW
2V/DIV
VOUT
50mV/DIV
AC COUPLED
IL
200mA/DIV
3561A G18
4μs/DIV
Start-Up from Shutdown
VIN = 3.6V
VOUT = 1.8V
ILOAD = 0A
SHDN/RT
2V/DIV
VOUT
1V/DIV
IL
1A/DIV
3561A G20
200μs/DIV



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