LTC1707 View Datasheet(PDF) - Linear Technology
Part Name
Description
Manufacturer
LTC1707 Datasheet PDF : 16 Pages
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LTC1707
TYPICAL PERFOR A CE CHARACTERISTICS
Maximum Output Current vs
Input Voltage
1000
VOUT = 1.8V
800 VOUT = 1.5V
600
400
200
0
2.5
VOUT = 5V
VOUT = 3.3V
VOUT = 2.5V
VOUT = 2.9V
3.5 4.5 5.5 6.5
INPUT VOLTAGE (V)
TJ = 85°C
L = 15µH
7.5 8.5
1707 G10
Switch Leakage Current
vs Temperature
1800
VIN = 8.4V
1600
1400
1200
1000
800
600
SYNCHRONOUS
SWITCH
400
200
0
– 50 – 25
MAIN
SWITCH
0 25 50 75
TEMPERATURE (°C)
100 125
1707 G11
Switch Resistance
vs Temperature
0.9
VIN = 5V
0.8
0.7
SYNCHRONOUS
SWITCH
0.6
0.5
MAIN
0.4
SWITCH
0.3
0.2
0.1
0
– 50 – 25
0 25 50 75
TEMPERATURE (°C)
100 125
1707 G12
Switch Resistance
vs Input Voltage
Load Step Transient Response
Burst Mode Operation
0.9
0.8
0.7
SYNCHRONOUS SWITCH
0.6
0.5 MAIN SWITCH
0.4
0.3
ITH
0.5V/DIV
VOUT
50mV/DIV
AC COUPLED
ILOAD
500mA/DIV
SW
5V/DIV
VOUT
20mV/DIV
AC COUPLED
ILOAD
200mA/DIV
0.2
0.1
0
2.5 3.5 4.5 5.5 6.5 7.5 8.5
INPUT VOLTAGE (V)
1707 G13
VIN = 5V
25µs/DIV
VOUT = 3.3V
L = 15µH
CIN = 22µF
COUT = 100µF
ILOAD = 0mA TO 500mA
Burst Mode OPERATION
1707 G14
VIN = 5V
VOUT = 3.3V
L = 15µH
CIN = 22µF
COUT = 100µF
ILOAD = 50mA
10µs/DIV
1707 G15
4
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