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KB3440EMS Scheda tecnica(PDF) 4 Page - Kingbor Technology Co

Il numero della parte KB3440EMS
Spiegazioni elettronici  Micropower Synchronous Buck-Boost DC/DC Converter
PDF  20 Pages
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Produttore elettronici  KINGBOR [Kingbor Technology Co]
Homepage  http://www.kingbor.com
Logo KINGBOR - Kingbor Technology Co

KB3440EMS Scheda tecnica(HTML) 4 Page - Kingbor Technology Co

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4
Active Quiescent Current
Burst Mode Quiescent Current
Error Amp Source Current
TEMPERATURE (
°C)
–55
400
450
500
550
–25
5
35
65
95
125
VIN = VOUT = 3.6V
TEMPERATURE (
°C)
–55
10
20
30
40
–25
5
35
65
95
125
VIN = VOUT = 3.6V
TEMPERATURE (
°C)
–55
5
10
15
20
–25
5
35
65
95
125
VIN = VOUT = 3.6V
Output Frequency
NMOS RDS(ON)
Feedback Voltage
TEMPERATURE (
°C)
–55
0.90
0.95
1.00
1.05
1.10
–25
5
35
65
95
125
VIN = VOUT = 3.6V
TEMPERATURE (
°C)
–55
0.10
0.15
0.20
0.25
0.30
–25
5
35
65
95
125
VIN = VOUT = 3.6V
SWITCHES B AND C
TEMPERATURE (
°C)
–55
1.196
1.216
1.236
–25
5
35
65
95
125
VIN = VOUT = 3V
Switch Pins in Buck Mode
VOUT Ripple During Buck,
Buck/Boost and Boost Modes
SW1
2V/DIV
SW2
2V/DIV
VIN = 5V
250ns/DIV
VOUT = 3.3V
IOUT = 250mA
Switch Pins in Boost Mode
SW1
2V/DIV
SW2
2V/DIV
VIN = 2.5V
250ns/DIV
VOUT = 3.3V
IOUT = 250mA
VOUT
10mV/DIV
AC Coupled
L = 10
µH1µs/DIV
COUT = 22
µF
IOUT = 250mA
fOSC = 1MHz
Buck
VIN = 5V
Buck/Boost
VIN = 3.78V
Boost
VIN = 2.5V
kB3440
Kingbor Technology Co.,Ltd
TEL:(86)0755-26508846 FAX:(86)0755-26509052
TYPICAL PERFORMANCE CHARACTERISTICS



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