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KB3426B-1.8 Scheda tecnica(PDF) 3 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) 3 Page - Kingbor Technology Co

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3
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VRUN
RUN Threshold
●
0.3
1
1.5
V
IRUN
RUN Leakage Current
●
±0.01
±1
µA
The
● denotes specifications which apply over the full operating temperature range, otherwise specifications are TA = 25°C.
VIN = 3.6V unless otherwise specified.
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The KB3426E is guaranteed to meet performance specifications
from 0
°C to 70°C. Specifications over the –40°C to 85°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls.
Note 3: TJ is calculated from the ambient temperature TA and power
dissipation PD according to the following formula:
KB3426: T J = TA + (PD)(250°C/W)
Note 4: The KB3426 is tested in a proprietary test mode that connects
VFB to the output of the error amplifier.
Note 5: Dynamic supply current is higher due to the gate charge being
delivered at the switching frequency.
Efficiency vs Input Voltage
Efficiency vs Output Current
Efficiency vs Output Current
Efficiency vs Output Current
Reference Voltage vs
Temperature
Oscillator Frequency vs
Temperature
(From Figure1a Except for the Resistive Divider Resistor Values)
INPUT VOLTAGE (V)
2
50
55
65
70
75
100
85
3
4
60
90
95
80
5
6
IOUT = 650mA
VOUT = 1.8V
IOUT = 100mA
IOUT = 10mA
IOUT = 0.1mA
IOUT = 1mA
OUTPUT CURRENT (mA)
70
80
90
95
0.1
10
100
1000
60
1
85
75
65
VOUT = 1.2V
VIN = 2.7V
VIN = 4.2V
VIN = 3.6V
OUTPUT CURRENT (mA)
70
80
90
95
0.1
10
100
1000
60
1
85
75
65
VOUT = 1.5V
VIN = 2.7V
VIN = 4.2V
VIN = 3.6V
OUTPUT CURRENT (mA)
70
80
85
95
100
0.1
10
100
1000
60
1
90
75
65
VOUT = 2.5V
VIN = 2.7V
VIN = 4.2V
VIN = 3.6V
TEMPERATURE (
°C)
–50
0.614
0.609
0.604
0.599
0.594
0.589
0.584
25
75
–25
0
50
100
125
VIN = 3.6V
TEMPERATURE (
°C)
–50
1.70
1.65
1.60
1.55
1.50
1.45
1.40
1.35
1.30
25
75
–25
0
50
100
125
VIN = 3.6V
KB3426
Kingbor Technology Co.,Ltd
TEL:(86)0755-26508846 FAX:(86)0755-26509052
ELECTRICAL CHARACTERISTICS
TYPICAL PERFORMANCE CHARACTERISTICS



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