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KB3426B-1.8 Scheda tecnica(PDF) 4 Page - Kingbor Technology Co

Il numero della parte KB3426B-1.8
Spiegazioni elettronici  1.5MHz, 800mA Synchronous Step-Down Regulator in SOT23-5
PDF  16 Pages
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Produttore elettronici  KINGBOR [Kingbor Technology Co]
Homepage  http://www.kingbor.com
Logo KINGBOR - Kingbor Technology Co

KB3426B-1.8 Scheda tecnica(HTML) 4 Page - Kingbor Technology Co

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4
Oscillator Frequency vs
Supply Voltage
Output Voltage vs Load Current
RDS(ON) vs Input Voltage
(From Figure1a Except for the Resistive Divider Resistor Values)
SUPPLY VOLTAGE (V)
2
1.8
1.7
1.6
1.5
1.4
1.3
1.2
34
5
6
LOAD CURRENT (mA)
0
200 300 400 500 600 700 800
1.844
1.834
1.824
1.814
1.804
1.794
1.784
1.774
100
900
VIN = 3.6V
INPUT VOLTAGE (V)
1
0
0.4
0.5
0.7
46
0.3
0.2
23
57
0.1
0
0.6
MAIN
SWITCH
SYNCHRONOUS
SWITCH
RDS(ON) vs Temperature
Supply Current vs Supply Voltage
Supply Current vs Temperature
Switch Leakage vs Temperature
Switch Leakage vs Input Voltage
Burst Mode Operation
TEMPERATURE (
°C)
–50
0.4
0.5
0.7
25
75
0.3
0.2
–25
0
50
100
125
0.1
0
0.6
MAIN SWITCH
SYNCHRONOUS SWITCH
VIN = 2.7V
VIN = 3.6V
VIN = 4.2V
SUPPLY VOLTAGE (V)
2
0
5
15
20
25
50
35
3
4
10
40
45
30
5
6
VOUT = 1.8V
ILOAD = 0A
TEMPERATURE (
°C)
–50
0
5
15
20
25
50
35
0
50
75
10
40
45
30
–25
25
100
125
VIN = 3.6V
VOUT = 1.8V
ILOAD = 0A
TEMPERATURE (
°C)
–50
200
250
300
25
75
150
100
–25
0
50
100
125
50
0
VIN = 5.5V
RUN = 0V
MAIN SWITCH
SYNCHRONOUS SWITCH
INPUT VOLTAGE (V)
0
0
20
40
60
80
120
1
23
4
56
100
RUN = 0V
SYNCHRONOUS
SWITCH
MAIN
SWITCH
SW
5V/DIV
IL
200mA/DIV
VOUT
100mV/DIV
AC COUPLED
4
µs/DIV
VIN = 3.6V
VOUT = 1.8V
ILOAD = 50mA
KB3426
Kingbor Technology Co.,Ltd
TEL:(86)0755-26508846 FAX:(86)0755-26509052
TYPICAL PERFORMANCE CHARACTERISTICS



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