LT1306 데이터 시트보기 (PDF) - Linear Technology
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LT1306 Datasheet PDF : 16 Pages
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TYPICAL PERFORMANCE CHARACTERISTICS
LT1306
Rectifier Saturation Voltage
vs Current
0.7
0.6
TA = 85°C
0.5
0.4
TA = –40°C
0.3
TA = 25°C
Stepdown-Mode Rectifier Voltage
vs Current
1.90
VIN = 6V
1.85 VOUT = 5V
TA = 25°C
1.80
1.75
1.70
Continuous-Conduction Mode
Switching Waveforms in Boost
Operation
VSW
5V/DIV
IL
0.5A/DIV
0.2
0.1
0
0
0.5
1.0
1.5 2.0
2.5
RECTIFIER CURRENT (A)
1306 • G13
1.65
1.60
1.55
0
0.5
1.0
1.5
RECTIFIER CURRENT (A)
2.0
1306 • G14
VO
0.1V/DIV
AC
VIN = 4.2V
VO = 5V
2µs/DIV
Start-Up to Shutdown Transient
Response*
VS/S
5V/DIV
VSW
5V/DIV
IL
2A/DIV
VO
5V/DIV
Continuous-Conduction Mode
Switching Waveforms in
Stepdown Mode
VSW
5V/DIV
IL
0.5V/DIV
VO
50mV/DIV
AC
Transient Response of the
Converter in Figure 1 with a
50mA to 800mA Load Step
LOAD
CURRENT
0.5A/DIV
DC
INDUCTOR
CURRENT
1A/DIV
OUTPUT
0.1V/DIV
AC
VIN = 2.5V
1ms/DIV
VIN = 6V
VO = 5V
2µs/DIV
VIN = 3.6V
VO = 5V
1ms/DIV
*Notice that the Input Start-Up Current is well Controlled and the
Output Voltage Falls to Zero in Shutdown.
5
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