MAX618EEE(1999) Просмотр технического описания (PDF) - Maxim Integrated
Номер в каталоге
Компоненты Описание
Список матч
MAX618EEE Datasheet PDF : 14 Pages
| |||
28V, PWM, Step-Up DC-DC Converter
ELECTRICAL CHARACTERISTICS
(VIN = +6V, PGND = GND, CVL = 4.7µF, TA = -40°C to +85°C, unless otherwise noted.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Input Voltage
Supply Current, No Load
VIN
3
IIN
VIN = 3V to 28V, VFB = 1.6V, SHDN = VL
28
V
800
µA
Supply Current, Full Load,
VL Connected to IN
IIN
VIN = 3V to 5.5, VFB = 1.4V, SHDN = VL = IN
7.5
mA
Supply Current, Full Load
Supply Current Shutdown
VL Output Voltage
VL Undervoltage Lockout
FB Set Voltage
LX Voltage Range
LX Switch Current Limit
LX On-Resistance
Switching Frequency
IIN
IIN
VVL
VVL
VFB
VLXON
ILXON
RLXON
f
VIN = 3.4V to 28V, VFB = 1.4V, SHDN = VL,
VL < VIN
VIN = 28V, VFB = 1.6V, SHDN = GND
VIN = 3.5V or 28V, no load
Rising edge, 1% hysteresis
PWM mode
2.85
2.55
1.455
1.4
188
4
mA
10
µA
3.3
V
2.85
V
1.545
V
28
V
3
A
0.6
Ω
312 kHz
Note 2: Specifications to -40°C are guaranteed by design, not production tested.
(Circuit of Figure 1, TA = +25°C.)
EFFICIENCY vs. OUTPUT CURRENT
(VOUT = 12V)
100
VIN = 8V
90
80
VIN = 3V VIN = 5V
70
60
50
40
30
20
10
0
0.1
1
10
100
1000
OUTPUT CURRENT (mA)
Typical Operating Characteristics
EFFICIENCY vs. OUTPUT CURRENT
(VOUT = 28V)
100
VIN = 12V
90
VIN = 5V
80
70
VIN = 3V
60
50
40
30
20
10
0
0.1
1
10
100
1000
OUTPUT CURRENT (mA)
_______________________________________________________________________________________ 3
Share Link: 